含丙烯腈橡胶生产废水中水回用中试研究
Pilot Study on Water Reuse in Acrylonitrile-Containing Rubber Production Wastewater
张卫国 1张淳 2王鹏 2柯振宇 2王寅 2顾玉林 1董鑫 1张泉2
作者信息
- 1. 南通能达水务有限公司,江苏 南通 226000
- 2. 江苏久吾高科技股份有限公司,江苏 南京 210000
- 折叠
摘要
本文以含丙烯腈橡胶生产废水为对象,探讨物化(两碱法除硬+混凝沉淀)+生化(水解+AAO+MBR)+双膜法(超滤+反渗透)组合工艺技术在生产丁腈橡胶所产含特征污染物的丙烯腈橡胶生产废水中水回用的可行性,为橡胶废水深度处理提供理论参考.中试运行结果表明:来水COD为2000 mg/L、丙烯腈 20 mg/L、BOD5为 450 mg/L和总氮为 110 mg/L条件下,水解酸化+AAO+MBR出水COD＜140 mg/L、丙烯腈＜0.5 mg/L、氨氮＜13 mg/L、总氮＜16 mg/L、总磷＜0.8 mg/L,经双膜法中水回用工艺处理后的反渗透浓水达到当地园区污水处理厂纳管要求,反渗透产水可供企业二次回用.
Abstract
In this paper,the feasibility of physicochemical(two-alkali hard removal+coagulation and precipitation)+biochemistry(hydrolysis+AAO+MBR)+double membrane method(ultrafiltration+reverse osmosis)combination technology in the production of acrylonitrile rubber with characteristic pollutants produced by nitrile rubber was discussed,so as to provide a theoretical reference for the advanced treatment of rubber wastewater.The results of the pilot operation showed that under the conditions of COD of 2000 mg/L,20 mg/L of acrylonitrile,BOD5 of 450 mg/L and total nitrogen of 110 mg/L,hydrolysis acidification+AAO+MBR effluent COD＜0.5 mg/L,ammonia nitrogen＜13 mg/L,total nitrogen＜16 mg/L,total phosphorus＜0.8 mg/L,the reverse osmosis concentrate treated by the double-membrane reclaimed water reuse process met the requirements of the local park sewage treatment plant.Reverse osmosis produced water can be used for secondary reuse by enterprises.
关键词
橡胶生产废水/丙烯腈/AAO/MBR/双膜法Key words
rubber production wastewater/acrylonitrile/AAO/MBR/double-membrane method引用本文复制引用
出版年
2024
NETL
NSTL
万方数据