酚氨回收－生化深度－膜处理－蒸发结晶工艺处理兰炭废水工程应用研究

打开文本图片集

关键词：兰炭废水；全流程处理；零排放；酚氨回收

中图分类号：X703 文献标识码：A 文章编号：1008-9500(2025)07-0270-05

DOI:10.3969/j.issn.1008-9500.2025.07.080

Research on the Engineering Application of Phenol Ammonia Recovery-Biochemical Depth-Membrane Treatment - Evaporation Crystallization Process for Treating Semi-coke Wastewater

WANGTianhui (Beijing Zhongke Kanglun Energy Technology Co.,Ltd.,Beijing102627,China)

Abstract:Under theguidance of national policies,the scaleof thesemi-coke industryand the numberof related enterprises inXinjiang UygurAutonomousRegion (referrdtoasXinjiang)haverapidlyincreased.However,Xinjiangis extremelyshortof water,andhowtoachievezerodischargeofsemi-cokewastewaterhasbecomeanurgent environmental engineering technology problem thatneeds tobeovercome.The phenolammoniarecovery-biochemicaldeep-membrane treatment-evaporativecrystalizationprocessisadopted totreatthesemi-cokewastewaterofacertainenterprise,thereby achieving zero discharge.Thephenolammonia recoveryunit hasagoodtreatment efecton Chemical Oxygen Demand (COD), ammonia nitrogen,total phenols,and oil,with a COD removal rate of 83.78% ,ammonia nitrogen removal rate of 98.10% ， and total phenol removal rate of 95.02% .At the same time,the qualified crude phenol and liquid ammonia products are recovered.Thebiochemical depth unit hasagoodremoval efecton CODandammonianitrogen,withaCODremovalrate of 95.84% and an ammonia nitrogen removal rate of 98.9% .The water produced by the reuse water treatment unit can meet thestandardsfor industrialcirculating waterreplenishment.Afterevaporationand crystalization,thesystemcanachieve zero discharge of wastewater.

Keywords: semi-coke wastewater; whole progress treatment; zero discharge; phenol ammonia recovery

近年来，我国兰炭产业发展迅速，年产量已超过1亿t，其产业集中分布在新疆维吾尔自治区（简称新疆）、陕西省榆林市、内蒙古自治区（简称内蒙古）鄂尔多斯市等地。（剩余7106字）