榨菜废水的特性与处理方法探讨  

Investigation on Characteristics and Treatment of Mustard Wastewater

作　　者：黄健盛 许林季 姚源 毛媛媛 刘德绍[1] 封丽 郑昊天 谭俊峰 HUANG Jiansheng;XU Linji;YAO Yuan;MAO Yuanyuan;LIU Deshao;FENG Li;ZHENG Haotian;TAN Junfeng(Chongqing University of Science&Technology,Chongqing 401331,China;Chongqing Research Institute of Ecological Environmental Sciences,Chongqing 401147,China;Chongqing Ecological Environment Engineering Evaluation Center,Chongqing 401121,China)

机构地区：[1]重庆科技学院,重庆401331 [2]重庆市生态环境科学研究院,重庆401147 [3]重庆市生态环境工程评估中心,重庆401121

出　　处：《重庆科技学院学报（自然科学版）》2021年第1期115-118,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：重庆市生态环境局环保科研项目“超疏水膜耦合A O技术处理榨菜废水及盐回收研究”(2019-90),“颗粒污泥技术耦合狐尾草氮磷吸收技术处理养殖废水研究与应用”(2019-91);重庆科技学院校内科研基金项目“超疏水膜耦合A O技术处理垃圾渗滤液研究”;重庆市自然科学基金面上项目“耦合反硝化除磷的城镇污水自养脱氮系统微生物协同作用机制研究”(cstc2019jcyj-msxmX0562)。

摘　　要：通过实地采集水样,测定榨菜腌制废水和废水处理厂进口处及调节池水质,分析榨菜废水的水质特性。水样测定结果表明:腌制废水是高有机物、高氮磷、高盐度的酸性废水,其化学需氧量在41 000~90 400 mg/L,氨氮含量为720~920 mg/L,总氮含量为2 800~3 000 mg/L,总磷含量为380~400 mg/L,盐度为9%~12%,pH为3.8~4.6;榨菜废水处理厂进水口的水质波动范围大且呈酸性,其化学需氧量在7 000~52 300 mg/L,氨氮含量为180~510 mg/L,总氮含量为210~1 380 mg/L,总磷含量为30~220 mg/L,盐度为1.4%~5.8%,pH为3.8~5.7;调节池中的综合废水仍呈酸性,污染物含量较高,其化学需氧量在4 600~5 000 mg/L,氨氮含量为200~270 mg/L,总氮含量为260~340 mg/L,总磷含量为40~60 mg/L,盐度为1.2%~1.6%,pH为5.7~6.2。榨菜生产过程中产生的废水盐度高、污染物含量高、排放不连续、处理成本高。建议从资源回收利用和实现达标排放两个方面考虑,加强对榨菜废水的管理。Through the field collection of water samples,the quality of pickled mustard wastewater,the inlet of wastewater treatment plant and the regulating pool are determined,and the water quality characteristics of mustard wastewater are analyzed. The results show that the three marinated wastewater is acid wastewater with high organic matter,high nitrogen and phosphorus,and high salinity. It’ s COD is 41 000 ~ 90 400 mg/L;NH4+-N is 720 ~920 mg/L;TN is 2 800 ~ 3 000 mg/L;TP is 380 ~ 400 mg/L;salinity is 9% ~ 12%;pH is 3. 8 ~ 4. 6. The water quality of the wastewater from the inlet of the mustard wastewater treatment plant fluctuates widely and is acidic. It’s COD is 7 000 ~ 52 300 mg/L;NH4+-N is 180 ~ 510 mg/L;TN is 210 ~ 1 380 mg/L;TP is 30 ~ 220 mg/L;salinity is 1. 4% ~ 5. 8%;pH is 3. 8 ~ 5. 7. After being adjusted by the regulating tank,the quality of the comprehensive wastewater is still acidic and the pollutant concentration is high. It’ s COD is 4 600 ~ 5 000 mg/L;NH4+-N is200 ~ 270 mg/L;TN is 260 ~ 340 mg/L;TP is 40 ~ 60 mg/L;salinity is 1. 2% ~ 1. 6%;p H is 5. 7 ~ 6. 2. The wastewater produced in the process of mustard production has high salinity,high pollutant content,discontinuous emission and high treatment cost. It is proposed that the treatment of mustard wastewater should take two aspects into account: resource recycling and standard discharge.

关 键 词：榨菜废水 抽样检测 污染物 盐度 化学需氧量 

分 类 号：X792[环境科学与工程—环境工程]