Transforming wastewater treatment in paper manufacturing industries: Replacing Ammonium Phosphate and Phosphoric Acid with T1B MacMi
Introduction:
The Integrated Paper and Pulp Industry is a leading paper manufacturing company involved in pulping of raw materials and paper manufacturing. The company is currently located in Dahej, Gujarat. With a strong commitment to environmental sustainability, The Integrated paper and pulp industry operates an industrial wastewater treatment plant (WWTP) to treat the effluent generated during its production processes.
They were using very high amounts of Ammonium Sulphate and Phosphoric Acid to meet their nutritional requirements and maintain MLVSS. To address these challenges, the industry implemented a bioaugmentation program at its WWTP, which resulted in significant improvements in the treatment process and compliance with regulatory standards.
Details provided for Effluent Treatment Plant (ETP):
The industry had primary treatment, biological treatment, and then a tertiary treatment.
| Flow | 4500-6000 KLD |
| Type of process | ASP |
| No. of aeration tanks | 7 (in series) |
| Capacity of aeration tanks | 100 KL (1 and 2 ), 400 KL(3), 1800 KL(4,5,6,7) |
| Total RT | 31.2 hours |
Findings and Challenges:
| Parameters | Inlet parameters | Outlet parameters |
| COD | 3,000 to 5,000 | 800 to 500 |
| BOD | 1000 to 1800 | 400 to 150 |
| MLVSS (avg.) | 6500 | 5679 |
To maintain the performance of the ETP, especially the biological tank the MLVSS levels are necessary to be maintained. However, it required a very high amount of ammonium sulphate and phosphoric acid viz. 700 kgs and 300 kgs per day respectively. Such a huge amount imposed a very high cost as well as the chemical consumption had high chance of going on with unwanted reactions in ETP, especially with lignin streams.
The Approach:
The industry partnered with us looking for a common solution that can serve as a replacement for Ammonium Sulphate and Phosphoric acid that can reduce the cost and should be Organic. Our team of experts went through the complete past 3 months’ data of ETP to analyze the trends. After conducting the visit, Team One Biotech suggested implementing T1B MacMi for wastewater treatment.
The Solution: T1B MacMi
- Organic, plant-based bio cultures replace conventional nitrogen and phosphorus sources.
- Eliminate the need for urea, DAP, ammonium sulphate, phosphoric acid, and other chemicals.
- Single source of Nitrogen, Phosphorous, Potash, Calcium, Magnesium, Copper, and other micro and macronutrients.
- Promote biological wastewater treatment through specialized microorganisms.
Results:
The implementation of the bioaugmentation program resulted in significant improvements in the performance of biological units in their WWTP:
- 98% reduction in ammonium sulphate and phosphoric acid consumption
- Maintained MLVSS levels within desired ranges
- 60% reduction in nutrient costs and 30% reduction in overall operating expenses (OPEX)
