Case Study High COD-High TDS effluent treatment and Elimination of MEE (1)
High COD-High TDS effluent treatment and Elimination of MEE
Background

With the head office located at Ankleshwar, this prominent chemical manufacturing company was spending heavily to treat its high COD effluent with high TDS. Their current ETP also did not have any biological system. The company connected us and gave us the challenge not only to treat the High COD effluent with TDS up to, but also to eliminate the use of MEE in order to save cost.

1st Phase: Scrutiny

Our team of experts visited the factory to introspect to identify the scope of improvements.

ETP details:

Flow (current) 400 KLD
Type of process Primary + Tertiary (no Biology)
No of spare tanks 4
Capacity of neutral tank 1 130 KL
Capacity of neutral tank 2 625 KL
Capacity of neutral tank 3 130 KL
Capacity of neutral tank 4 60 KL

Parameters:

Effluent Treated by MEE:

Parameters  Avg. Inlet parameters (PPM)
COD 30000-40000
TDS 150000-180000

Effluent Treated in ETP:

Parameters  Avg. Inlet parameters (PPM)
COD 30000-40000
TDS 20000
Current Scenario

ETP Process:

  • Batch process is followed till neutral effluent storage tank 1.
  • 60 HP pumps are present with a capacity of 80 KL/hr.
  • Both the streams are equalized, while the acidic stream is neutralized at the neutralization tank with lime (400-1500 kg).
  • The supernatant passes through the belt filter while the sludge is passed to the settling tank and then to CF1 and CF2
  • The supernatant is passed to 4 neutral effluent storage tanks one by one through gravity, with capacities 130 Kl, 625 KL, 130 KL, and 60 Kl respectively.
  • No Aeration in Neutral effluent storage tanks.

Wastewater treatment of COD BOD AND MEE Image (1).png

Challenges

Treating high COD was not the actual challenge, but treating the effluent with such high TDS up to 160000 ppm was near impossible, as:

  • Conventional biological wastewater treatment struggles at high Total Dissolved Solids (TDS) levels, especially above 10,000–20,000 ppm.
  • High TDS creates osmotic stress, impairs enzyme function, and can rupture microbial cell membranes.
  • At 160,000 ppm TDS, most microbial communities collapse, making biological COD degradation nearly impossible.
  • T1B Aerobio contains specialised, scientifically selected bio cultures that naturally survive and thrive under extreme salinity and high organic loading.
2nd Phase: The Blueprint

After scrutiny and brainstorming with our R&D, we concluded and agreed to transform the existing ETP setup into a fully-functional ASP-based ETP that can treat high COD of effluent with High TDS.

ETP process optimization:

Action Plan:

  • Conversion of current tanks into biological tanks for COD reduction
  • The Neutral storage tanks of 130 KL AND  625 KL were converted into a biological tank, for which fine bubble diffusers were installed.
  • The third neutral effluent storage tank of capacity 130 KL to be used as a clarifier with the provision of recirculation back to the tank of 625 KL through pumps
  • Elimination of MEE gradually
  • We started with 125 kld flow and eventually took the daily flow to 400 kld.
3rd Phase: Technology and Execution
  1. Selecting biocultures:

T1B Aerobio

Reduces aeration processing in Wastewater treatment. Improves functioning & efficiency of biological units in WTP. Useful in activated sludge process bioreactors & biodigesters

Team One Biotech’s unique microbial preparation “T1B Aerobio” consists of blends of several strains of microorganisms, usually bacteria. These organisms are isolated from nature and are not genetically altered in any way. They are selected based on accelerated reproduction rates and their ability to perform specific functions, such as good floc-forming capabilities, ability to degrade xenobiotic compounds, ability to survive in high TDS, degrade ammonia, sodium acetate, and other nutrients, ability to perform under variable pH & temperature, ability to secrete various enzymes, etc. 

T1B SustainX

  • Our product T1B SustainX is a 100 % replacement of UREA-DAP and other conventional nutrients. It consists: 
    • Organic Carbon → Primary electron donor and carbon source for microbial growth and co-metabolic degradation.
    • Total Nitrogen → Essential for amino acids, nucleic acids, and enzyme production, driving biomass formation.
  • Phosphate → Supports ATP synthesis, genetic material integrity, and membrane stability.
  • Calcium → Strengthens cell walls, stabilizes enzymes, and enhances bio flocculation and sludge settling.
  • Magnesium → Key cofactor for ribosomes, ATP handling, and enzyme regulation.
  • Sulfur → Needed for sulfur-containing amino acids, coenzymes, and redox balance.

Essential Micronutrient Metal Cofactors + Organic Micronutrient Coenzyme Precursors + Nitrogenous Organic Monomers and Metabolic Precursors

2. Process optimization:

Our target was to achieve MLSS of 3500-4000 in the first 15 days. After that, the WAS was wasted at 15 KLD, and RAS was recirculated at 5 KLD.

Results:

After 60 days of implementation:

Parameters  Primary Outlet) Neutral (aeration) tank 2 Outlet Clarifier Outlet
COD (PPM) 30000 6000                   >3500
COD Reduction – ~ 80 % ~ 88 %
TDS (PPM) 160000  160000 160000

Wastewater treatment of COD BOD AND MEE Image.

MEE elimination:

In 90 days, the MEE was completely eliminated, thereby reducing overall wastewater treatment cost by 62%.

Conclusion

With the combined effect of T1B Aerobio bio culture and T1B SustainX – nutrient source and process optimization, the client achieved an 85-90 % COD reduction efficiency in ETP through the biological system, which further increased after the tertiary system. This translated into:

  • Improved microbial activity and settleability.
  • Stable effluent quality, meeting compliance standards.
  • Bio cultures are effective in high TDS effluents.

This case demonstrates how biology-driven solutions, coupled with system know-how, can deliver tangible performance and cost benefits in industrial wastewater treatment.

Looking to improve your ETP/STP efficiency with the right bioculture?
Talk to our experts at Team One Biotech for customised microbial solutions.

Contact: +91 8855050575

Email:  sales@teamonebiotech.com

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Heavy Metals in Anaerobic Wastewater Treatment | Recovery Guide

Anaerobic systems are one of the most efficient and popular systems in industrial wastewater treatment. Its cost-effective and easy manoeuvring attributes make its presence prominent in Industries such as Distilleries, Ethanol manufacturing, Sugar mills. Breweries and even used in some facultative systems. In the anaerobic systems, Anaerobic granular sludge systems, such as UASB (Upflow Anaerobic Sludge Blanket) and EGSB (Expanded Granular Sludge Bed) reactors, represent one of the most efficient technologies for wastewater treatment.

Here, granules, which are compact, well-structured microbial aggregates, play the most vital part. These granules consist of layered microbial communities, viz., hydrolytic bacteria at the surface, acetogens in the middle, and methanogens at the core. These microbial communities work in synergy to degrade complex organic matter into methane and carbon dioxide.

These microbial communities include anaerobic bacteria, facultative anaerobe groups, and core obligate anaerobes—together forming stable functional granules essential for efficient anaerobic digestion. Understanding how they interact is explained in our EHS-focused guide

However, the anaerobic process is, at the same time, one of the most sensitive processes & its effectiveness lies in maintaining parameters such as pH, flow rate, temperature, and carbon source, which hold a very narrow range. Similarly, one such parameter is the presence of heavy metals, which has grown in industrial and municipal wastewater from plating, mining, tanneries, and electronics industries. 

Metals like copper (Cu), nickel (Ni), zinc (Zn), cadmium (Cd), chromium (Cr), and lead (Pb) are frequently labelled “toxic,” but this generalization oversimplifies their nuanced impacts. Beyond simply inhibiting enzymes, these metals disrupt the extracellular polymeric substances (EPS) matrix, destabilise syntrophic microbial interactions, and interfere with sulfide-mediated metal precipitation, ultimately leading to granule disintegration and performance failure.

This blog explores the lesser-explored territory of how heavy metals affect anaerobic granules at a structural and biochemical level and, more importantly, how reactors can recover through biogenic sulfide precipitation, bioaugmentation, and staged feeding strategies.

The need to understand the impact of heavy metals beyond toxicity thresholds that drop methane levels is necessary as this understanding is vital for designing resilient reactors and developing recovery protocols after metal shock loads.

To improve stability under fluctuating industrial loads, many ETP/STP plants now supplement with bioculture for wastewater treatment, which enhances shock resistance, improves organic degradation pathways, and strengthens microbial synergy.

The wastewater treatment systems are usually housed in an anaerobic tank or anaerobic chamber, where microbial structure influences overall anaerobic wastewater treatment outcomes.

This blog explores how heavy metals affect anaerobic granules at a structural and biochemical level and how reactors can recover through biogenic sulfide precipitation, bioaugmentation, and staged feeding strategies.

For operational guidance integrating microbial performance with EHS and compliance: Click here

 
Structure of Anaerobic Granules

Granules are self-immobilized microbial communities held together by EPS. Their architecture provides:

  • High biomass retention

  • Metabolic zoning

  • Resistance to shock loads

Granule formation is influenced by anaerobic culture methods, where microbial self-aggregation enables long-term anaerobic sludge digestion efficiency.

 

How Heavy Metals Impact Anaerobic Granules
  • Disruption of EPS and Structural Stability

The EPS structure consists of negatively charged functional groups (carboxyl, phosphate, hydroxyl) that can bind metal cations, effectively trapping them. Initially, this adsorption reduces metal toxicity, but with time, it has the following effects:

Loosening of granule cohesion: When the balance of tightly and loosely bound EPS changes, granules become porous and fragile.

Cross-linking: Metal ions bridge EPS polymers, changing their viscosity and reducing flexibility.

Oxidative stress: Metal exposure triggers free-radical formation, degrading EPS polymers.

Altered secretion: Metal stress may either stimulate overproduction of EPS (as a defense) or suppress secretion if energy is diverted for stress responses.

 

  • Inhibition of Syntropic Pathways

Anaerobic digestion depends on a very vulnerable relationship between methanogenic archaea and syntrophic bacteria. As methanogens are more metal-sensitive than acidogens, the balance tilts — acids accumulate, pH drops, and VFAs such as propionate and butyrate build up, further destabilizing granules. Once the methanogenic core is impaired, granule disintegration accelerates.

Metals like Cu2+  Ni²⁺, and Zn²⁺ interfere with these relationships by:

  1. Inhibiting hydrogenases and formate dehydrogenases, essential for interspecies hydrogen/formate transfer.
  2. Reducing the rate of interspecies electron transfer (IET) and direct interspecies electron transfer (DIET), 
  3. Blocking methyl-coenzyme M reductase, the key enzyme for methane formation.

This sensitivity also explains key differences in aerobic vs anaerobic bacteria, where oxygen tolerance and metabolic energy yield differ significantly.

Granule Disintegration Mechanisms

Heavy metals lead to:

  • EPS degradation

  • Methanogenic core collapse

  • Granule fragmentation

  • Biomass washout

Long-Term Recovery Strategies

Recovery involves staged feeding, sulfide control, pH stabilization, and biomass reinforcement.

During recovery, following standard anaerobic digestion steps helps prevent acidification and supports gradual metabolic restoration.

 

Bioaugmentation and Seeding

Introduction of bioculture that consists of EPS-producing bacteria and metal-resistant methanogens helps re-establish microbial networks and regain granule strength.

To buy High-performance microbial strains for industrial ETP/STP: Click here.

 

Granule Seeding

Seeding stable granules accelerates recovery.

Circulating mature anaerobic sludge from a healthy system supports faster granule restructuring.

EPS-Enhancing Additives

Polysaccharide-rich substrates (molasses/starch) promote structural cohesion.

 

Conclusion

Heavy metals do more than inhibit digestion — they structurally dismantle anaerobic granules.

Across industries, maintaining strong microbial granules ensures efficient anaerobic treatment, reduced sludge handling, stable biogas production, and long-term regulatory compliance.

For consultation or plant-level support: Contact Us

 
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As one of the leading biotech companies in India and trusted bioremediation companies in India, Team One Biotech continues to deliver solutions that redefine sustainability across wastewater treatment, agriculture, aquaculture, and hygiene management. Contact us here for free consultation.

Email: sales@teamonebiotech.com

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Effective Wastewater Treatment in Speciality Agrochemical Industry
Effective Wastewater Treatment in Speciality Agrochemical Industry
Introduction:

The agrochemical industry generates a significant volume of industrial wastewater due to continuous cleaning, washing, and multiple manufacturing processes. An Indian multinational agrochemical company faced a major challenge in handling a high organic load generated from its production operations. One of its plants, located in Gujarat GIDC, manufactures multiple agrochemical products and was struggling to maintain wastewater parameters within Pollution Control Board (PCB) discharge norms. For expert solutions on managing industrial wastewater effectively, contact Team One Biotech today.

ETP Flow Chart:

The Effluent Treatment Plant (ETP) consists of Primary, Biological, and Tertiary systems, integrated with Reverse Osmosis (RO) and Multiple Effect Evaporator (MEE). The activated sludge process (ASP) includes three aeration tanks in series and one anoxic tank positioned before the aeration units to enhance biological treatment efficiency.

Flow Parameters:

Flow: 200 m3/day
Inlet COD: 14,000 to 17,000 ppm
Inlet Ammoniacal nitrogen: 280 to 320 ppm
COD outlet after biological treatment:   9000 to 12000 ppm
Ammoniacal Nitrogen after biological treatment 220 to 270 ppm

Challenges:
 Despite maintaining high MLSS and MLVSS levels in all aeration tanks, the plant continued to record elevated COD, BOD, and Ammoniacal Nitrogen values, exceeding PCB discharge standards. The EHS department faced pressure to stabilize the biological process and meet environmental regulations. Some consultants even suggested incorporating a Membrane Bioreactor (MBR) after the ASP process, but it failed to deliver the expected COD and BOD reduction.

The Approach:
 After a detailed evaluation using Team One Biotech LLP’s WWTP evaluation form, on-site 

inspection, and extensive discussion with the EHS team, it was concluded that the main issue was the absence of an effective microbial consortium in the biological treatment system. Additionally, multiple waste streams entering the ETP from various production campaigns further disturbed microbial stability. To address this, Team One Biotech performed a Wastewater Microbiome Analysis (WMA) and Effluent Treatability Study. These scientific evaluations helped determine the adaptability and growth of microbial cultures in the effluent, confirming that bioremediation could significantly reduce COD, BOD, and TAN levels.

Performance Evaluation:
 The ETP performance was analyzed based on key parameters — Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), pH, and Dissolved Oxygen (DO). Results revealed that with proper bioremediation and ETP optimization, the plant could achieve effluent quality within regulatory discharge limits.

Implementation Strategy:
 The bioremediation program spanned over 60 days, where Team One Biotech bioaugmented all biological tanks, excluding the MBR. Interestingly, the MBR was later removed from the process, as the required output was achieved without it. The implementation was structured into three focused stages:

  • Plant Optimization: The influent flow rate was stabilized to prevent biological shock. Earlier, the flow fluctuated with production, which hampered microbial activity. It was converted to a continuous flow pattern for steady biological treatment performance.
  • T1B Aerobio Dosing: A 60-day dosing plan was executed with T1B Aerobio, a proprietary microbial formulation. The first four weeks included high dosing to increase microbial population density, followed by maintenance dosing for biomass stability.
  • Flow Rate Enhancement: The treatment capacity was gradually increased from 120 m³/day to 225 m³/day by the 60th day, maintaining consistent outlet quality.
Results and Discussions:


 After 60 days, the plant achieved remarkable success: a 91% reduction in COD and 75% reduction in Total Ammoniacal Nitrogen (TAN). The COD levels decreased from ~15,000 ppm to ~500–450 ppm at the biological outlet. MLSS levels dropped from 18,000 ppm to 8,000–10,000 ppm, indicating improved biomass efficiency. The removal of the MBR system and its associated power consumption resulted in significant cost savings. Furthermore, the plant’s flow rate improved by 12%, and the RO membrane life increased due to reduced organic load. After a 3-month optimization phase, the use of RO was discontinued entirely, reflecting stable and sustainable ETP performance.

These outcomes demonstrate how Team One Biotech’s microbial bioremediation solutions effectively enhance industrial wastewater treatment efficiency and ensure compliance with PCB discharge norms. The project highlights how advanced biological treatment systems and ETP optimization strategies can reduce costs, improve environmental sustainability, and extend system life.

If you wish to improve your industrial wastewater treatment, achieve high COD and BOD reduction, and ensure sustainable ETP operations, connect with Team One Biotech LLP today. As one of the leading biotech companies in India, we provide a sustainable product range across multiple verticals, including probiotics for aquaculture, biofertilizers and plant growth promoters, eco-friendly cleaning solutions, animal probiotics, and on-site consultation for biocultures for ETP and STP.

Email:  sales@teamonebiotech.com

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T1B SustainX can solve the malnutrition of ETP! How and Why?

What you read in the book is always different in the real-world hook!! A quote so accurately framed that and can be applied in every professional aspect, including wastewater treatment. No matter how many SOPs or books we read, the ground reality is different, each ETP is different, each industrial effluent is different and one of the most overlooked challenges across these systems is the malnutrition of ETP, where the biological treatment process suffers due to imbalanced or inadequate nutrient supply.

In the world of industrial wastewater treatment, biological systems are the backbone of sustainable and cost-effective operations. But even the best industrial application of microorganisms can’t function without the right nutrients. And for the right nutrients, the same old C:N:P ratio is followed. And to make up this ratio, unfortunately, the conventional nutrient sources such as UREA-DAP, which are supposed to be used for agriculture, are often used in abundance in common effluent treatment plants (CETPs), which is itself a self-sabotage practice.This leads to a common but critical issue—malnutrition of ETP, where effluent treatment plants suffer from poor nutrient availability or imbalance despite excessive chemical input.

Now, readers must be wondering as to what the ideal solution should be for this, as for every nutrient requirement, we need separate chemicals, like for nitrogen, it’s UREA, for phosphorus, it’s DAP, etc.

Well, Team One Biotech has a solution to this universal problem as well. Introducing T1B SustainX- a natural blend of nutrients in powdered form. A 100% replacement of UREA, DAP, Phosphoric acid, and other conventional nutrients.

Team One Biotech’s T1B SustainX offers a smart, eco-friendly, and efficient alternative. Here’s why it’s time to reconsider your ETP nutrient strategy—and how SustainX provides a smart, eco-friendly, and efficient alternative. Contact Us to know how SustainX can transform your operations.

The problem of using fertilizers in Industries as the nutrient source:

Despite their widespread use, these fertilizers contribute to the malnutrition of ETP, disrupting microbial health and system performance.Industrial effluent is not same as soil where we can put the traditional fertilizers. Using such products may give results, but it has some side effects too such as:

  • Nutrient Spikes & Imbalances: Urea, DAP and other products tend to release ammonia and phosphorous very rapidly causing sudden spike in nutrient availability leading to shock induction in the microbes present.
  • Limited Bioavailability: A significant portion of these nutrients is lost through runoff or chemical interactions, offering poor uptake efficiency.
  • Sludge Bulking & Odors: Excess ammonia from urea or phosphorus from DAP can trigger undesirable side effects like bulking, foaming, and odor removal.
  • Eutrophication Risk: Residual nutrients in treated effluents can pollute water bodies, leading to algal blooms and ecological damage.
T1B SustainX: One stop Nutrition Solution

It is a revolutionary and advanced nutritional solutions consists of balanced C:N:P , which is bioavailable.

Key Benefits of SustainX:

  • Scientifically designed pre-balanced ratio — no need for DAP/urea
  • Boosts microbial growth under anaerobic process and stress
  • Enhances COD/BOD reduction
  • Reduces sludge and odor removal issues
  • Improves methane yield in anaerobic digestion of biomass
  • Improves sludge quality and settleability
  • Reduced operational upsets and foaming
  • Stable system performance over time
  • Reduces operational hassle of doing multiple products
Practical Replacement comparison:

ParameterDAP/Urea/Phosphoric AcidT1B SustainX (Science Power)
Nutrient AvailabilityImmediate (risk of spike)Gradual (consistent)
BioavailabilityMedium to lowHigh (organic complex)
Microbial DiversityLimited impactSignificant positive impact
Sludge ProductionModerate to highReduced and stabilized
Residual NutrientsHigh risk (eutrophication)Minimal residual nutrients
Environmental ImpactHigher pollution potentialEco-friendly and sustainable
T1B SustainX- Nutrient Profile

T1B SustainX is a one blend-multiple nutrient product that gives all the necessary nutrients in one dose:

  • Organic Carbon → Primary electron donor and carbon source for microbial growth and co-metabolic degradation.
  • Total Nitrogen → Essential for amino acids, nucleic acids, and enzyme production, driving biomass formation.
  • Phosphate → Supports ATP synthesis, genetic material integrity, and membrane stability.
  • Calcium → Strengthens cell walls, stabilizes enzymes, and enhances bioflocculation and sludge settling.
  • Magnesium → Key cofactor for ribosomes, ATP handling, and enzyme regulation.
  • Sulfur → Needed for sulfur-containing amino acids, coenzymes, and redox balance.
  • Essential Micronutrient Metal Cofactors + Organic Micronutrient Coenzyme Precursors + Nitrogenous Organic Monomers and Metabolic Precursors

It also includes essential micronutrient metal cofactors, organic precursors, and nitrogenous metabolic compounds to enrich biological sewage treatment plants.

Real-World Impact:

SustainX has proven effective across a wide range of industrial effluents, including:

  • Pharmaceutical & Chemical Wastewater
  • Distilleries, Dairies & Food Units
  • Textiles & Detergents
  • CETPs and STPs
  • Petroleum & Pesticide Industries

Whether dealing with high COD, high TDS, or complex toxic loads, SustainX addresses the root causes of malnutrition of ETP by offering a complete, bioavailable nutrient solution for stable, high-performance biological treatment.

Upgrade Your ETP Nutrition- A Smarter and Sustainable Way:

With increasing regulatory scrutiny and rising sustainability expectations, continuing with outdated nutrient practices is no longer viable. T1B SustainX empowers ETP operators to:

  • Reduce chemical dependency
  • Improve operational efficiency
  • Cut down secondary pollution
  • Foster robust microbial ecosystems

Learn more at www.teamonebiotech.com or reach out at sales@teamonebiotech.com/8855050575

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Implementation of SBR system in a CETP
Implementation of SBR System in a CETP with T1B Aerobio Bioculture
Introduction: 

The SBR system in a CETP situated in Rajasthan handles effluents from over 40 industries in the RIICO sector the system faces difficulty in handling the load of COD above 2000 PPM, owing to discharges from textiles and  chemicals. The SBR system with 4 biological tanks and 4 cycles a day was struggling with its efficiency in terms  of COD reduction, due to which the outlet COD was very high and the load was carried on to the RO, leading to  damage of membranes and high OPEX. Contact us today to learn how we can help optimize your industrial effluent treatment plant (ETP) with customized bioaugmentation solutions.

ETP details: 

The industry had primary treatment, biological treatment, and then a tertiary treatment. 

Flow (current)  2 MLD
Type of process  SBR
No. of aeration tanks  4
Capacity of aeration tanks  3 MLD each
Total cycles in 24 hrs  4
Duration of fill and Aeration cycle  1.5 hrs and 2.5 hrs respectively
Challenges:
Parameters  Avg. Inlet parameters(PPM)  Avg. Outlet parameters(PPM)
COD  3000  800
BOD  1800  280-300
TDS  3000  1200
Operational Challenges: 
  • The primary treatment was working at 5 % efficiency in terms of COD reduction 
  • The whole SBR system was lagging in COD degradation efficiency and sustainability of MLVSS as well. 
  • The Carryover COD and unsettled biomass was traveling to RO, damaging membranes. 
The Approach: 

The agency operating the SBR system in a CETP approached us to solve their current issues.  

We adopted a 3D approach that included : 

  1. Research/Scrutiny :  
  • Our team visited their facility during the winter season as they encountered many issues at that  

         time. Team scrutinized every aspect of the plant to analyze the efficiency of each element. 

  • The visit gave us a complete idea of their processes, current efficiency, trends, and our scope of  

         work.  

  1. Analysis : 
  • We analyzed the previous 6-month cumulative data of their ETP to see trends in the inlet-outlet  

         parameters’ variations and the permutation combinations related to it. 

  1. Innovation :  
  • After the research and analysis our team curated customized products and their dosing schedules  with formulation keeping in mind the plan of action to get the desired results. This process is            called  bioaugmentation. 
Desired Outcomes : 
  1. Reduction of COD/BOD thereby improving the efficiency of biological tanks. 
  2. Degradation of tough-to-degrade effluents and develop robust biomass to withstand shock loads. 
  3. Ensuring proper settling of Biomass to stop carryover to RO, thereby preventing damage to RO membranes.
Execution: 

Our team selected two products : 

T1B aerobio product

T1B Aerobio Bioculture: This product consisted of a blend of microbes as bioculture  

selected as per our analysis to degrade the recalcitrant COD, and ensure sustainability in  

the SBR system.  

Plan of action: 
  1. We devised a 60 days dosing plan, which was further divided into two phases: 
  • Day 1 to day 30 : Loading dose, to develop the population of bacteria and generate biomass.
  • Day 31 to Day 60: Maintenance Dose, to maintain the population of biomass generated. 
  1. Dosing pattern: We advised dosing in all 4 SBR tanks cycle wise viz. during filling and Aeration, to give  the bioculture proper mixing and necessary DO. 
Results: 
Parameters  Inlet parameters  Tank 4 outlet parameters (ppm)
COD  3000 ppm  280-300 ppm
BOD  1800 ppm  60-82 ppm

Before and after adding bioculture

The implementation of the bioaugmentation program resulted in significant improvements in the performance  of biological units in their WWTP: 

  • We were able to achieve around 90 % reduction from their current inlet parameters in COD & BOD,  which was only 70% earlier. 
  • The overall ETP OPEX was reduced by 20%. 
  • The ETP achieved full capacity operations in terms of hydraulic load. 
  • The biological process became more stable and resilient to fluctuations in the influent characteristics. 
  • The RO membrane health was restored and and their damage reduced up to 80%.

Want similar results for your ETP or STP? Contact us for more Information.

Email: sales@teamonebiotech.com

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aerobic, anaerobic, and anoxic treatment
Anoxic vs. Anaerobic vs. Aerobic Wastewater Treatment
Introduction

Wastewater treatment relies on biological processes to remove contaminants before the treated water is discharged or reused. The three primary treatment conditions—anoxic, anaerobic, and aerobic—each utilize different microbial mechanisms to break down pollutants. Understanding these processes is essential for selecting the most efficient stp water treatment process based on wastewater characteristics and treatment goals.

This blog explores the origins, efficiency, and prominence of each treatment type.For expert solutions in wastewater treatment, visit Team One Biotech.

1. Aerobic Wastewater Treatment
Origins and Development

Aerobic wastewater treatment has its roots in the late 19th and early 20th centuries with the development of the activated sludge process (1913, UK). It gained prominence with the increasing need for effective wastewater management in industrial and municipal applications.

Process Mechanism
  • Requires oxygen to support aerobic microbial activity.
  • Bacteria break down organic matter into carbon dioxide, water, and biomass.
  • Common systems include biological sewage treatment plant, trickling filters, and aerated lagoons.

Biological Oxygen Demand (BOD) + O2 + Biomass + nutrients(N/P) → 

CO2 + H2O + new biomass + energy

Efficiency and Prominence
  • Efficiency: High organic matter removal (90-98% BOD and COD reduction).
  • Energy Demand: High energy consumption due to aeration.
  • Sludge Generation: Produces more sludge compared to anaerobic processes.
  • Prominence: Widely used for municipal wastewater treatment and industrial wastewater treatment due to its ability to handle high organic loads efficiently.
2. Anaerobic Wastewater Treatment
Origins and Development

Anaerobic treatment dates back to ancient times when natural decomposition processes were observed in wetlands. The modern anaerobic process was developed in the late 19th century, with advancements in anaerobic digestion of biomass occurring in the 20th century.

Process Mechanism
  • Operates in the absence of oxygen.
  • Microorganisms break down organic matter into methane, carbon dioxide, and biomass through hydrolysis, acidogenesis, acetogenesis, and methanogenesis.
  • Common systems include Upflow Anaerobic Sludge Blanket (UASB) reactors, gases produced in anaerobic sludge digesters, and expanded granular sludge bed (EGSB) reactors.
Efficiency and Prominence
  • Efficiency: Moderate to high COD removal (70-90%) but requires post-treatment.
  • Energy Demand: Low energy requirement; produces biogas as a byproduct.
  • Sludge Generation: Minimal sludge production.
  • Prominence: Used for high-strength industrial wastewater (e.g., food processing, dairy, breweries) and working of sewage treatment plant in developing regions.
3.Anoxic Wastewater Treatment
Origins and Development

Anoxic treatment became prominent with the increasing need for nitrogen removal in wastewater treatment plants. It gained traction in the late 20th century with the development of biological nutrient removal (BNR) systems.

Process Mechanism
  • Operates with no free oxygen but uses chemically bound oxygen (e.g., nitrates).
  • Facilitates denitrification, where bacteria convert nitrates (NO3-) to nitrogen gas (N2), reducing nitrogen pollution.
  • Common systems include anoxic zones in activated sludge plants and sequencing batch reactors (SBRs).
Efficiency and Prominence
  • Efficiency: Essential for nitrogen removal (80-95% nitrate reduction).
  • Energy Demand: Lower than aerobic treatment but requires a carbon source.
  • Sludge Generation: Moderate sludge production.
  • Prominence: Critical for wastewater treatment plants with strict nitrogen discharge regulations.
Removal of nitrogen:

Nitrification: NH4+ +1½O2→NO2 – +2H+ + H2O aerobic conditions

NO2– + ½O2→NO3–

Denitrification:NO3– + BOD→N2+H2O+CO2  anoxic conditions

Comparison Table
Parameter Aerobic Treatment Anaerobic Treatment Anoxic Treatment
Oxygen Requirement High None No free oxygen (uses nitrates)
Energy Demand High Low (energy-positive) Low
Organic Removal Efficiency High (90-98%) Moderate-High (70-90%) Specific to nitrogen removal
Sludge Production High Low Moderate
Prominence Municipal and industrial wastewater Industrial, high-strength wastewater Used in biological nutrient removal
Conclusion:

Selecting between aerobic, anaerobic, and anoxic treatment depends on the specific wastewater characteristics and treatment objectives.

  • Aerobic treatment is highly efficient but energy-intensive.
  • Anaerobic treatment is energy-efficient and generates biogas but may require post-treatment.
  • Anoxic treatment is crucial for nitrogen removal and is often used in combination with aerobic systems.

By integrating these wastewater treatment processes effectively, wastewater treatment plants can optimize efficiency, odor removal, and meet regulatory standards.

If you are looking for expert wastewater management solutions from trusted sanitation companies, including specialized services such as sanitization, and waste removal, we’ve got you covered

For more details on wastewater management solutions, contact us at Team One Biotech.

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Implementation of SBR systems in CETP
Implementation of SBR System in a CETP with T1B Aerobio Bioculture
Introduction:

The Common Effluent Treatment Plant (CETP) situated in Rajasthan handles effluents from over 40 industries in the RIICO sector. Equipped with SBR system in CETP technology, the system faces difficulty in handling the load of Chemical Oxygen Demand (COD) above 2000 PPM, owing to discharges from textiles and chemicals. The SBR wastewater treatment system, with 4 biological tanks and 4 cycles a day, was struggling with its efficiency in terms of COD reduction, resulting in high outlet COD levels. This excess load was carried over to the Reverse Osmosis (RO) system, leading to membrane damage and increased operational expenses (OPEX).

To explore effective solutions for optimizing wastewater treatment and improving COD reduction efficiency, you can reach out to Team One Biotech

ETP details:

The industry had primary treatment, biological treatment, and then a tertiary treatment.

Flow (current)2 MLD
Type of processSBR
No. of aeration tanks4
Capacity of aeration tanks3 MLD each
Total cycles in 24 hrs4
Duration of fill and Aeration cycle1.5 hrs and 2.5 hrs respectively
Challenges: 
Parameters Avg. Inlet parameters(PPM)Avg. Outlet parameters(PPM)
COD3000800
BOD1800280-300
TDS30001200
Operational Challenges:
  • The primary treatment was working at only 5% efficiency in terms of COD reduction.
  • The entire SBR process was lagging in COD degradation efficiency and sustainability of Mixed Liquor Volatile Suspended Solids (MLVSS).
  • Carryover COD and unsettled biomass were traveling to RO membranes, causing severe damage.
The Approach:

The agency operating the CETP wastewater treatment plant approached us to solve these pressing issues.

We adopted a 3D approach:
  1. Research/Scrutiny:
    Our team visited their facility during the winter season as they faced many challenges. We scrutinized every aspect of the plant to assess the efficiency of each component.
  2. Analysis:
    We analyzed six months of historical data to identify trends in wastewater treatment parameters, including BOD removal efficiency, COD degradation, and total dissolved solids (TDS) reduction.
  3. Innovation:
    Based on our findings, we developed a bioaugmentation strategy by selecting customized products and designing a targeted dosing schedule.
Desired Outcomes:
  • Significant COD and BOD reduction, improving the efficiency of biological treatment systems.
  • Degradation of hard-to-treat industrial effluents and formation of stable biomass to handle shock loads.
  • Enhanced biomass settling, reducing carryover COD and preventing RO membrane damage.
Execution:

Our team selected two products :

T1B Aerobio Bioculture: This product consisted of a blend of microbes as bioculture selected as per our analysis to degrade the recalcitrant COD, and ensure sustainability in the SBR system in CETP. 

Plan of Action:
  1. We devised a 60-day dosing program, divided into two phases:
  • Day 1 to Day 30: Loading dose to accelerate microbial population growth and generate biomass.
  • Day 31 to Day 60: Maintenance Dose, to maintain the population of biomass generated.
2. Dosing Strategy:
  • Dosing was carried out in all 4 SBR aeration tanks during filling and aeration cycles to ensure optimum microbial activity.
Results:
ParametersInlet parametersTank 4 outlet parameters (ppm)
COD3000 ppm280-300 ppm
BOD1800 ppm60-82 ppm

diagram of before and after bioculture, SBR system in CETP
The implementation of bioaugmentation program by SBR system in CETP resulted in significant improvements in the performance of biological units in their WWTP:

✅ Achieved 90% COD and BOD reduction, compared to the previous 70% efficiency.
✅ Reduced CETP operational expenditure (OPEX) by 20%.
✅ Increased ETP capacity utilization to handle full hydraulic load.
✅ Improved biological process stability, making it more resilient to influents fluctuations.
✅ RO membrane health restored, reducing damage by 80%.

Conclusion:

The successful implementation of bioaugmentation with T1B Aerobio Bioculture led to an efficient, cost-effective, and sustainable wastewater treatment system. By enhancing COD degradation efficiency, reducing BOD levels, and improving biomass stability, the CETP wastewater treatment achieved outstanding results. This highlights the importance of biological wastewater treatment solutions in optimizing industrial effluent treatment processes.

 Discover how T1B Aerobio Bioculture can help you today!

Struggling with high COD levels in your wastewater treatment system? Contact us today to know more about how T1B Aerobio Bioculture can help you today!

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