火电行业废水排放绩效评估  

Performance evaluation of waste water discharge in thermal power

作　　者：竹涛[1] 袁前程 金鑫睿 叶泽甫 侯益铭 ZHU Tao;YUAN Qiancheng;JIN Xinrui;YE Zefu;HOU Yiming(School of Chemical&Environmental Engineering,China University of Mining&Technology-Beijing,Beijing 100083,China;ShanxiGemeng US-China Clean Energy R&D Center Co.,Ltd.,Taiyuan 030031,China;Gemeng International Energy Co.,Ltd.,Taiyuan 030031,China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]山西格盟中英清洁能源研发中心有限公司,山西太原030031 [3]格盟国际能源有限公司,山西太原030031

出　　处：《洁净煤技术》2020年第1期213-220,共8页Clean Coal Technology

基　　金：山西省科技重大专项资助项目(20181102017);中央引导地方科技发展专项资助项目(19943816G);中央高校基本科研业务专项基金资助项目(2009QH03)。

摘　　要：近年来我国大力开展排污许可制度,火电行业作为国民支柱产业和用水大户,在制度实施过程中,水污染物未受到重视,火电废水相关统计数据不清,排放绩效模糊,导致其难以纳入排污权交易体系。自2008年我国火力发电逐渐进入成熟期后,各省市火电企业用水自成熟期来形成了明显区域性特征,为按照《控制污染物排放许可制实施方案》要求更好地开展排污许可制度,笔者根据地区水资源情况,选取具有代表性的省份(山东和广东)着重分析火电废水现状,依据2015年全国各省环境统计数据,梳理所选地区火电行业水污染因子特征,首先明确了火电企业相关用水指标,火力发电厂需大量冷却水来冷却机组,冷却方式的差异决定了火电厂冷却水量的不同,根据3个指标确定企业的冷却技术;其次确定了主要有2种排放去向;之后比较水污染因子的处理效率,选取了特征水污染因子;最后进行全国火电行业废水绩效评估,包括废水排放总量绩效核算及主要水污染因子排放绩效核算,各地区可根据绩效核算结果对自身在火电行业的水资源使用及排放方面的问题制定针对性政策,旨在为火电废水排污许可制度的实施提供基础支持。结果表明,火电企业以电力为产品,水资源为生产消耗品,排放总量控制应基于废水的排放绩效。废水排放绩效评估及区域性特征研究目的是探究电力与废水排放之间联系,得出与所在区域的水文条件、发电效率以及冷却方式有关,水资源缺乏地区废水处理水平低于水资源丰富地区,会导致不良用水情况加剧,可制定出对应的废水治理政策,在排污权交易与废水处理设备资金投入上寻找平衡点。总结现阶段排污权交易存在的阻碍:火电行业的水污染物不受重视,导致排放量统计不够准确,为政策制定带来困难;互联网实时监测平台未建立,无法实时监测火电企业排�In recent years,the emission permit system is vigorously carried out in China. Thermal power industry,as a national pillar industry and a large water user,has not been paid much attention to water pollutants during the implementation of the system. The relevant statistical data of thermal power wastewater is unclear,and the discharge performance is vague,which makes it difficult to be included in the emission trading system. Since thermal power generation in China gradually entered the mature period in 2008,the water use for thermal power enterprises in various provinces and cities has formed the obvious regional features since the mature period. In order to better carry out discharge license system in accordance with the requirements of " control of pollutant discharge permit system implementation plan",based on the regional water resources situation,the typical provinces( Shandong and Guangdong) were choosed to emphatically analyze the present situation of coal waste water. According to the 2015 national provincial environmental statistics,the water pollution factor characteristics of the thermal power industry in selected region were sorted out. Firstly,the related water indicators of thermal power enterprises were defined. Thermal power plants need a large amount of cooling water to cool the unit. The difference in cooling methods determined the difference in cooling water amount of thermal power plants. The enterprise’s cooling technology was determined according to the three indicators. Secondly,the two main types of discharge directionwere determined. Finally,the treatment efficiency of water pollution factors was compared. The characteristic water pollution factors were selected. The performance evaluation of thermal power industry wastewater was carried out,including wastewater emissions performance calculation and main water pollution discharge performance factor calculation.each region according to the performance calculation results of its own in the thermal power industry water use and emissions pr

关 键 词：火电行业 水污染物 排放绩效 排污许可制度 

分 类 号：X322[环境科学与工程—环境工程] F426[经济管理—产业经济]