尼泊金甲酯对污泥减量及污水处理效果的影响  

Effect of Uncoupler Methyl Paraben on Sludge Reduction and Pollutants Removal

作　　者：郭婉茜 雒海潮[1,2] 陈田慧 吴清莲 季小益 GUO Wan-qian;LUO Hai-chao;CHEN Tian-hui;WU Qing-lian;JI Xiao-yi(School of Environment, Harbin Institute of Technology, Harbin 150090, China;State Key Laboratory of Urban Water Resource and Environment, Harbin 150090, China)

机构地区：[1]哈尔滨工业大学环境学院,黑龙江哈尔滨150090 [2]城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090

出　　处：《中国给水排水》2019年第3期26-30,共5页China Water & Wastewater

基　　金：城市水资源与水环境国家重点实验室项目

摘　　要：活性污泥法是目前应用最为广泛的污水处理技术,但在处理污水的同时不可避免地会产生大量剩余污泥,其处理与处置费用占污水处理厂运行成本的50%左右。为此,研究了解偶联剂尼泊金甲酯对污泥减量及污水处理效果的影响。当尼泊金甲酯浓度为1 mg/L时污泥减量效果最佳,达到了38. 0%。在此条件下,COD和PO_4^(3-)-P的平均去除率由空白组的88. 10%和48. 14%分别提高到90. 41%和53. 91%; NH_4^+-N和TN的平均去除率则略有下降,由空白组的82. 95%和55. 20%分别下降到82. 48%和53. 12%;同时,在试验过程中污泥的沉降性能良好。因此,采用尼泊金甲酯实现污泥减量具有良好的经济性和应用前景。Activated sludge process is the most widely used sewage treatment technology. However, it will generate a large amount of sludge during the sewage treatment process. The cost of the sludge treatment accounts for about 50% of the operating cost of sewage treatment plant. The effects of uncoupler methyl paraben on sludge reduction and sewage treatment were investigated. The results showed that the optimized concentration of methyl paraben for sludge reduction was 1 mg/L, which achieved 38. 0% sludge reduction efficiency. Under the optimized methyl paraben concentration, the average removal rates of COD and PO4^3-- P increased from 88. 10% and 48. 14% in the blank group to 90. 41 % and 53. 91 %, respectively;while the average removal rate of NH4^+- N and TN decreased slightly from 82. 95% and 55. 20% to 82. 48% and 53. 12%;meanwhile the sludge kept good settleability during the sewage treatment process. Consequently , achieving sludge reduction via dosing of methyl paraben was an economical approach with promising application potentials.

关 键 词：活性污泥法 污泥减量 尼泊金甲酯 污泥沉降性能 

分 类 号：TU992[建筑科学—市政工程]