摘要
以水解酸化与改良型A/O法为主体工艺,通过对A/O系统泥水回流方式等进行改良,并添加不同填料后,系统考察了对实际电镀废水尾水的处理效果。结果表明,在电镀废水尾水中添加部分生活污水后,随着混合废水可生化性的提高,废水处理效率也随之升高。在混合废水(电镀废水物化出水和生活污水体积比为1:3),HRT=18h的条件下,系统对COD、NH3-N、TN的去除率分别为83%、98%和80%。同时,系统内添加火山岩及组合填料后,既能增加系统内污泥含量,防止污泥流失,同时能显著增强系统对电镀废水中有机物与氨氮的去除效果。
Main process was consisted by hydrolysis acidification and innovated A/O process. This study showed the treatment of electroplating tailwater by innovating the methods of mud reflow and adding different fillers. The result indicated： the biodegradability was increased by adding sewage into electroplating tailwater. Meanwhile, the efficiency of the treatment of wastewater was increased. When the volume ratio of electroplating tailwater and sewage was 1：3, as well as hydraulic retention time was 18 h, the removal rate of COD, NH3-N, TN was 83%, 98%, 80%. Furthermore, the dosing volcanic and combined packing caused the increase of sludge content and the ability to enhance capabilities of removing organics and NH;N.
出处
《水处理技术》
CAS
CSCD
北大核心
2014年第9期89-92,共4页
Technology of Water Treatment
基金
住建部科技计划项目(2011-K7-19)
苏州市科技计划项目(SS201334)
江苏省"青蓝工程"资助项目(2012)
江苏省环境科学与工程重点实验室开放课题(Zd131207)
苏州科技学院博士学位科研启动项目(2014)
关键词
电镀废水尾水
水解酸化
A
O工艺
脱氮
electroplating tailwater
hydrolysis acidification
A/O process
nitrogen removal
