Jiangsu Yixing Xinqi Environmental Protection Co., Ltd. has successfully developed a new process called “3T-BAF†recycling wastewater treatment and reuse. The innovative process adopts a new technology that promotes advection and negative pressure and integrates coagulation, sedimentation, degradation, and filtration. The effluent quality achieved by this process can reach COD (chemical oxygen demand) ≤ 10mg/L, BOD (biochemical oxygen demand) ≤ 4mg/L, and SS (suspended matter) ≤ 5mg/L, which fully complies with the supplement of circulating water. Water standard.
According to reports, the 3T-BAF process not only can significantly reduce the SS, COD, and BOD values ​​of the wastewater, but also has the advantages of nitrogen and phosphorus removal and removal of AOX (adsorbable organic halides). Due to the adoption of high-efficiency bio-environmental microbial agents and special biological treatment filter media, the sewage can remove 95% of the SS in the coagulation and sedimentation reaction zone, which not only improves the effect of biofilm treatment process, but also effectively utilizes it. The role of special spatial filtering. The biological activated carbon used in the process and the special BAF (aerated biological filter) filter media have wide adaptability and strong anti-toxicity, and have good removal effects on macromolecules, solid organic substances and ammonia nitrogen, and their degradability and speed are 5 times more than the traditional biological filter treatment process. In addition, the 3T-BAF process plant can be designed and manufactured in a modular manner, and at the same time sludge thickening and dehydration can be achieved.
This process is very suitable for chemical companies with large sewage discharge. Taking the 10000t/h circulating cooling water station constructed by a chemical company as an example, the turbidity and COD values ​​of the drainage are both high, and the external drainage of the cyclic backwashing is as high as 50 to 100 t/h, which not only greatly affects the circulating water quality, but also makes Companies face enormous environmental pressure. If the company invests and constructs a 30t/h 3T-BAF wastewater reuse unit, it can recover all the investment within one year of operation, and its wastewater treatment and reuse cost is approximately 0.45 yuan per ton.
According to reports, the 3T-BAF process not only can significantly reduce the SS, COD, and BOD values ​​of the wastewater, but also has the advantages of nitrogen and phosphorus removal and removal of AOX (adsorbable organic halides). Due to the adoption of high-efficiency bio-environmental microbial agents and special biological treatment filter media, the sewage can remove 95% of the SS in the coagulation and sedimentation reaction zone, which not only improves the effect of biofilm treatment process, but also effectively utilizes it. The role of special spatial filtering. The biological activated carbon used in the process and the special BAF (aerated biological filter) filter media have wide adaptability and strong anti-toxicity, and have good removal effects on macromolecules, solid organic substances and ammonia nitrogen, and their degradability and speed are 5 times more than the traditional biological filter treatment process. In addition, the 3T-BAF process plant can be designed and manufactured in a modular manner, and at the same time sludge thickening and dehydration can be achieved.
This process is very suitable for chemical companies with large sewage discharge. Taking the 10000t/h circulating cooling water station constructed by a chemical company as an example, the turbidity and COD values ​​of the drainage are both high, and the external drainage of the cyclic backwashing is as high as 50 to 100 t/h, which not only greatly affects the circulating water quality, but also makes Companies face enormous environmental pressure. If the company invests and constructs a 30t/h 3T-BAF wastewater reuse unit, it can recover all the investment within one year of operation, and its wastewater treatment and reuse cost is approximately 0.45 yuan per ton.