LIUXiao-zhi,CHEN Si-tong,LIXiao-peng,et al.Treatment of Chemical Park Sewage by Improved Bardenpho Process, MBR and Active Coke Adsorption Process[J].China Water & Wastewater,2024,40(20):121-126.
Treatment of Chemical Park Sewage by Improved Bardenpho Process, MBR and Active Coke Adsorption Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第20期
Page:
121-126
Column:
Date of publication:
2024-10-17
- Keywords:
- wastewater treatment plant of chemical industrial zone; improved Bardenpho process; MBR process; active coke adsorption
- Abstract:
- The second phase expansion capacity of the sewage treatment plant in a chemical industry park in Shandong Province is 1.5×104 m3/d, including 1×104 m3/d of industrial wastewater and 5 000 m3/d of domestic sewage, of which industrial wastewater is extremely difficult to degrade. The effluent COD, BOD5, NH3-N and TP shall comply with the level Ⅳ criteria in the Environmental Quality Standards for Surface Water (GB 3838-2002), i.e., SS≤ 6 mg/L and TN≤10(12) mg/L. The design adopts improved Bardenpho, MBR and activated coke adsorption process. It shows that the combined process has high treatment efficiency and strong shock loading resistibility. The improved Bardenpho achieves better C/N/P removal effect, MBR process can ensure the low SS value to reach the standard, and the active coke adsorption process can effectively ensure the stability of refractory soluble COD to reach standard. The final concentrations of effluent COD, BOD5, NH3-N, TN, TP and SS are 25.18,5.22,0.26,7.88,0.22 and 1.08 mg/L, respectively. The total investment of the expansion project is 118.03 million yuan, of which the construction and installation cost is 94.53 million yuan. After operation, all indicators are stable and up to standard and the direct operation cost is 1.43 yuan/m3.
Last Update:
2024-10-17