循环冷却排污水污泥处理后用于电厂脱硫工艺的探讨  

Discussion on Application of Circulating Cooling Sewage Sludge to Desulfurization Process in Power Plant

作　　者：张博 雷海东 王波慧 陈国巍 王玉鑫 ZHANG Bo;LEI Hai-dong;WANG Bo-hui;CHEN Guo-wei;WANG Yu-xin(Dalian Power Generation Co.,Ltd.,Dalian 116035,China;Northeast Electric Power Co.,Ltd.,Shenyang 110170,China;Chengdu Shuke Technology Co.,Ltd.Beijing Branch,Beijing 100070,China)

机构地区：[1]大连发电有限责任公司,辽宁大连116035 [2]东北电力有限公司,辽宁沈阳110170 [3]成都市蜀科科技有限责任公司北京分公司,北京100070

出　　处：《化工管理》2022年第26期38-40,共3页Chemical Engineering Management

摘　　要：大连发电厂为实现“零取水、零排放”的双零要求,采用将循环冷却排污水经石灰预处理后再进行浓缩减量的处理。在循环冷却排污水石灰预处理时,会生成一定量的污泥,主要成分为CaCO_(3)、Mg(OH)_(2)。该成分与用于电厂脱硫系统的石灰石浆液基本相同,在理论上可用于脱硫,且无需对污泥进行脱水处理。这不仅实现了污泥的资源化再利用,降低污泥的处理成本,同时可减少电厂脱硫系统石灰石的用量。在实践中需考虑污泥相对于石灰石的差异性,并控制对脱硫系统产生的影响。In order to achieve the double-zero requirement of"Zero water intake and zero discharge",Dalian power plant adopts the process of pre-treating the circulating cooling effluent with Lime and then concentrating and reducing the quantity.A certain amount of sludge will be generated when circulating cooling effluent is pretreated with lime,The main components of sludge are CaCO_(3),Mg(OH)_(2).The composition is basically the same as the limestone slurry used in the desulfurization system of the power plant.In theory,it can be used for desulfurization without dehydration of sludge.This not only realizes the reuse of sludge as a resource,reduces the cost of sludge treatment,but also reduces the amount of limestone used in the desulfurization system of the power plant.In practice,the difference between sludge and limestone shall be considered and the influence on desulfurization system shall be controlled.

关 键 词：循环冷却排污水 石灰预处理 污泥 脱硫系统 

分 类 号：X703[环境科学与工程—环境工程]