煤气化高硬度废水预处理工艺研究  

RESEARCH ON PRETREATMENT PROCESS OF HIGH HARDNESS WASTEWATER FROM COAL GASIFICATION

作　　者：郭璇 GUO Xuan(Research Institute of Qilu Branch Co.,SINOPEC,Zibo Shandong 255400)

机构地区：[1]中国石化齐鲁分公司研究院,山东淄博255400

出　　处：《齐鲁石油化工》2024年第3期186-190,共5页Qilu Petrochemical Technology

摘　　要：针对某公司煤气化装置产生的高硬度废水存在结垢堵塞管道的隐患,分别开展了添加市售Na_(2)CO_(3)和利用该公司副产CO_(2)和NaOH除总硬度研究,结果表明:采用添加Na_(2)CO_(3)沉淀工艺处理煤气化高硬度废水,总硬度去除率达到99.5%;采用副产CO_(2)和NaOH处理,总硬度去除率达到99.0%~99.8%,不仅有效降低了存在的风险,而且具有良好的经济性。In response to the hidden danger of scaled and blocked pipelines in the high hardness wastewater generated by the coal gasification unit of a certain company,addition of commercially available sodium carbonate or use of a company′s by-products CO_(2) and caustic soda for the total hard removal was studied.The results showed that total hard removal rate of the precipitation treatment process with addition of sodium carbonate was 99.5%,that of the other treatment process by using by-product CO_(2) and caustic soda was 99.0%~99.8%,which not only effectively reduced the existing risks but also had good economic efficiency.

关 键 词：高硬度废水 污水处理 碳酸钠 二氧化碳 

分 类 号：TQ09[化学工程]