高盐有机废水有价组分回收与水资源回用技术的探索与实践  

Exploration and practice of valuable components recovery and water resource utilization technology of high salt organic wastewater

作　　者：陈辉霞[1] 徐伟[2] 陶莉[1] 陈芳芳[1] 刘凤梅 徐红彬[1] CHEN Huixia;XU Wei;TAO Li;CHEN Fangfang;LIU Fengmei;XU Hongbin(Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;Zhejiang Huayou Cobalt Co.,Ltd.,Quzhou 314500,China)

机构地区：[1]中国科学院过程工程研究所,北京100190 [2]浙江华友钴业股份有限公司,衢州314500

出　　处：《科技导报》2021年第17期32-38,共7页Science & Technology Review

基　　金：“十三五”水体污染控制与治理科技重大专项(2018ZX07402005)。

摘　　要：针对无机精细化工行业的高盐、高浓有机废水成分复杂、难降解等污染特征,利用无机精细化工高盐有机废水有价组分回收与水资源回用集成技术在镍钴电池材料生产过程进行了探索与实践。结果表明:废水中油类去除率达到99%,资源化回收得到的无水硫酸钠达到GB/T 6009—2014的III类标准(Na_(2)SO_(4)含量>92%),处理后废水总有机碳(TOC)含量≤0.05%,水回用率达到85%以上,蒸发残液与粉煤灰等辅料混合后高温焙烧可制得陶粒,将全部实现资源化。全流程吨水处理成本由220元降到180元以下,具有显著的经济效益和环境效益。Aimed at the pollution characteristics of high salinity and high concentration organic wastewater in inorganic fine chemical industry such as complex composition and difficult degradation this study explorates and practises valuable components recovery and water resource reuse technology in the production process of nickel cobalt battery materials in inorganic fine chemical industry.The results show the followings:the oil removal rate from the wastewater can reach 99%;the anhydrous sodium sulfate obtained from resource recovery can meet the class Ⅲ standard of GB/T 6009—2014(Na_(2)SO_(4) content>92%);the TOC content of wastewater after treatment is≤0.05%,and the water reuse rate is more than 85%.When the evaporation residue is mixed with fly ash and other auxiliary materials,ceramsite can be prepared.So all of them can be recycled.The treatment cost per ton of water in the whole process is reduced from 220 yuan to less than 180 yuan,which has significant economic and environmental benefits.

关 键 词：无机精细化工 高盐有机废水 资源化 

分 类 号：X703[环境科学与工程—环境工程]