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.
改良Bardenpho+MBR+活性焦处理化工园区废水
- Title:
- Treatment of Chemical Park Sewage by Improved Bardenpho Process, MBR and Active Coke Adsorption Process
- 关键词:
- 化工园区污水处理厂; 改良Bardenpho工艺; MBR工艺; 活性焦吸附
- Keywords:
- wastewater treatment plant of chemical industrial zone; improved Bardenpho process; MBR process; active coke adsorption
- 摘要:
- 山东某化工园区污水处理厂二期扩建规模为1.5×104 m3/d，进水包含极难降解工业废水（1×104 m3/d）和生活污水（0.5×104 m3/d），出水COD、BOD5、氨氮、TP执行《地表水环境质量标准》（GB 3838—2002）的Ⅳ类标准，SS≤6 mg/L、TN≤10（12） mg/L，设计采用改良Bardenpho+MBR+活性焦吸附工艺。运行实践表明，该组合工艺处理效率高，抗冲击能力强。改良Bardenpho取得了较好的碳、氮、磷去除效果，MBR能保证SS低值达标，活性焦吸附工艺可有效保证难降解可溶性COD稳定达标，最终出水COD、BOD5、NH3-N、TN、TP、SS分别为25.18、5.22、0.26、7.88、0.22、1.08 mg/L。该扩建工程总投资为1.180 3亿元，其中建筑安装费为9 453万元，运行后各项指标均稳定达标，直接运行成本为1.43元/m3。
- 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.
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