大孔树脂对污水处理厂尾水提标及再生液的高效脱氮处理中试研究  

Pilot-scale research on macroporous resin to raise standard of tail water from sewage treatment plant and efficient nitrogen removal of regenerated resin desorption solution

作　　者：陶炳池 黄慧敏 王宇芳 梅荣武 胡正峰 TAO Bingchi;HUANG Huimin;WANG Yufang;MEI Rongwu;HU Zhengfeng(Zhejiang Province Environmental Engineering Co.,Ltd.,Hangzhou Zhejiang 310012;Zhejiang Huanke Environmental Certification Center Co.,Ltd.,Hangzhou Zhejiang 310007;Hangzhou Hua’ao Environmental Technology Co.,Ltd.,Hangzhou Zhejiang 310012;Eco-Environment Science Research and Design Institute of Zhejiang,Hangzhou Zhejiang 310007)

机构地区：[1]浙江省环境工程有限公司,浙江杭州310012 [2]浙江省环科环境认证中心有限公司,浙江杭州310007 [3]杭州华澳环境技术有限公司,浙江杭州310012 [4]浙江省生态环境科学设计研究院,浙江杭州310007

出　　处：《环境污染与防治》2023年第8期1076-1079,共4页Environmental Pollution & Control

基　　金：浙江省重点研发计划项目(No.2021C03021);浙江省生态环境科研与成果推广项目(No.2022HT008)。

摘　　要：为实现污水处理厂尾水提标至《地表水环境质量标准》(GB 3838—2002)的Ⅳ类水质标准,针对已经达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准的杭州市某城镇污水处理厂尾水,采用大孔树脂吸附后出水化学需氧量(COD)、总磷(TP)、氨氮、硝态氮、总氮(TN)平均质量浓度分别为5.89、0.10、0.12、0.74、0.98 mg/L,达到GB 3838—2002的Ⅳ类水质标准,相应的去除率分别为42.98%、44.44%、53.85%、91.79%、90.78%,对TN特别是硝态氮的去除效果非常明显。同时,针对含高浓度硝态氮的树脂再生液采用两级缺氧好氧工艺处理,使得出水TN平均质量浓度为30.00 mg/L,COD为191.00 mg/L,可以返回至污水处理厂生化系统。中试的吨水成本为1.34元,包括电耗成本1.10元,药剂费0.24元。In order to achieve the improvement of tail water from sewage treatment plant to ClassⅣwater quality standard of“Environmental quality standards for surface water”(GB 3838-2002),macroporous resin was used to adsorb the tail water of a sewage treatment plant in Hangzhou,which had already reached the Primary A standard of“Discharge standard of pollutants for municipal wastewater treatment plant”(GB 18918-2002).The average mass concentrations of COD,TP,ammonia nitrogen,nitrate nitrogen and TN in the outlet after adsorption were 5.89,0.10,0.12,0.74 and 0.98 mg/L,respectively,meeting ClassⅣwater quality standard of GB 3838-2002.And the corresponding removal rates were 42.98%,44.44%,53.85%,91.79%and 90.78%,respectively.The removal effect of TN,especially nitrate nitrogen,was extremely outstanding.At the same time,two-stage AO process was used to treat regenerated resin desorption solution,which contained high concentration of nitrate nitrogen.The average mass concentrations of TN and COD in outlet were 30.00 and 191.00 mg/L,respectively,which could be returned to the biochemical system of the sewage treatment plant.The cost was 1.34 yuan for per ton of water at pilot-scale,including 1.10 yuan for power consumption and 0.24 yuan for chemical consumption.

关 键 词：大孔树脂 脱氮 再生液处理 尾水提标 

分 类 号：X703[环境科学与工程—环境工程]