某发电集团火电厂废水治理现状与对策
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摘要
分析了某发电集团火电厂废水排放要求,总结了火电厂水处理系统现状,提出了相应的火电厂废水治理思路及对策,并指出火电厂废水治理项目应在开展水务查定,完善废水监测系统,加强管理节水和现有水处理设备诊断的基础上,开展可行性研究,优化方案设计,同时应强化立项和工程管理,此外还需加强工程投运后的运行维护。高盐废水治理是火电厂废水治理的难点,本文对高盐废水浓缩软化预处理阶段与浓缩减量阶段的相关工艺进行了分析比较,需根据各电厂实际情况,选择经济合理的技术方案。
The wastewater discharge requirements of thermal power plants under a power generation group are analyzed. The present situation of the water treatment systems are summarized. The ideas and countermeasures for wastewater treatment of thermal power plants are put forward. It points out that, on the basis of carrying out water affairs checking, perfecting wastewater monitoring system, strengthening management of water saving and diagnosis of existing water treatment equipments, the feasibility study should be carried out, the project design should be optimized, and the project establishment and management should be strengthened. Moreover, the operation and maintenance of the project should be strengthened after the project is put into operation. In addition,the high-salt wastewater treatment is a difficult point during the wastewater processing for coal-fired power plants. The relative technologies of the softening pretreatment stage and the concentration reduction stage for high-salt wastewater concentration are analyzed. It suggests that the economical and reasonable technology solutions be selected according to the actual situation of each power plant.
The wastewater discharge requirements of thermal power plants under a power generation group are analyzed. The present situation of the water treatment systems are summarized. The ideas and countermeasures for wastewater treatment of thermal power plants are put forward. It points out that, on the basis of carrying out water affairs checking, perfecting wastewater monitoring system, strengthening management of water saving and diagnosis of existing water treatment equipments, the feasibility study should be carried out, the project design should be optimized, and the project establishment and management should be strengthened. Moreover, the operation and maintenance of the project should be strengthened after the project is put into operation. In addition,the high-salt wastewater treatment is a difficult point during the wastewater processing for coal-fired power plants. The relative technologies of the softening pretreatment stage and the concentration reduction stage for high-salt wastewater concentration are analyzed. It suggests that the economical and reasonable technology solutions be selected according to the actual situation of each power plant.
引文
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[12]佘晓利,潘卫国,郭士义,等.燃煤电厂湿法烟气脱硫废水零排放技术进展[J].应用化工,2018,47(1):160-164.SHE Xiaoli,PAN Weiguo,GUO Shiyi,et al.Advances in zero-discharge technology for wet flue gas desulfurization wastewater from coal-fired power plants[J].Applied Chemical Industry,2018,47(1):160-164.
[13]王广珠,柴紫仪,王旭初,等.水处理用粉末离子交换树脂质量指标探讨[J].热力发电,2010,39(4):23-27.WANG Guangzhu,CHAI Ziyi,WANG Xuchu,et al.An approach to quality indices of powdered ion-exchange resion used for water treatment[J].Thermal Power Generation,2010,39(4):23-27.
[14]毛进,王璟,张江涛,等.新型絮凝反应器工艺性能试验研究[J].热力发电,2010,39(5):105-107.MAO Jin,WANG Jing,ZHANG Jiangtao,et al.Study on performance test of new flocculation reactor process[J].Thermal Power Generation,2010,39(5):105-107.
[15]刘亚鹏,王金磊,陈景硕,等.火电厂脱硫废水预处理工艺优化及管式微滤膜实验研究[J].中国电力,2016,49(2):153-158.LIU Yapeng,WANG Jinlei,CHEN Jingshuo,et al.Optimization of FGD wastewater pretreatment technique for thermal power plant and test studies on tubular crossflow microfiltration process[J].Electric Power,2016,49(2):153-158.
[16]汪岚,蔡井刚,胡治平.石灰-芒硝-烟道气法软化脱硫废水的可行性分析[J].浙江电力,2016,35(2):48-50.WANG Lan,CAI Jinggang,HU Zhiping.Feasibility analysis of desulphurization wastewater softening through limemirabilite-flue gas method[J].Zhejiang Electric Power,2016,35(2):48-50.
[17]叶春松,罗珊,张弦,等.燃煤电厂脱硫废水零排放处理工艺[J].热力发电,2016,45(9):105-108.YE Chunsong,LUO Shan,ZHANG Xian,et al.Key problems and developing trend of zero discharge technology of desulfurization wastewater[J].Thermal Power Generation,2016,45(9):105-108.
[18]马双忱,武凯,万忠诚,等.旁路蒸发系统对燃煤电厂脱硫系统水平衡和氯平衡的影响[J].动力工程学报,2018,38(4):298-307.MA Shuangchen,WU Kai,WAN Zhongcheng,et al.Effect of evaporation bypass on water and chlorine balance in desulfurization system of a coal fired power plant[J].Journal of Chinese Society of Power Engineering,2018,38(4):298-307.
[2]李亚娟,王正江,余耀宏,等.烟气超净排放改造对废水零排放水量平衡体系影响的处理措施[J].热力发电,2015,44(12):129-132.LI Yajuan,WANG Zhengjiang,YU Yaohong,et al.Effect of super-clean emission retrofitting on water balance system of coal-fired power plants with zero wastewater discharge[J].Thermal Power Generation,2015,44(12):129-132.
[3]胡大龙,于学斌,余耀宏,等.直流冷却型火电厂深度节水方案[J].热力发电,2016,45(9):134-139.HU Dalong,YU Xuebin,YU Yaohong,et al.Depth water conservation technology in coal-fired power plant with once-through cooling system[J].Thermal Power Generation,2016,45(9):134-139.
[4]王冬梅,夏春雷,崔伟强,等.脱硫废水处理系统设计问题和运行难点对策分析[J].水处理技术,2015(12):126-128.WANG Dongmei,XIA Chunlei,CUI Weiqiang,et al.The countermeasure analysis of desulfurization wastewater treatment system design and operation problems[J].Technology of Water Treatment,2015(12):126-128.
[5]龙潇,何彩燕,石景燕,等.循环水排污水回用工艺中反渗透系统污堵原因分析[J].中国电力,2012,45(7):43-46.LONG Xiao,HE Caiyan,SHI Jingyan,et al.Analysis on fouling of reverse osmosis systems in reuse process for blowdown of circulating water[J].Electric Power,2012,45(7):43-46.
[6]张志国,胡大龙,王璟,等.燃气电厂深度节水及废水零排放方案[J].中国电力,2017,50(7):127-132.ZHANG Zhiguo,HU Dalong,WANG Jing,et al.The in-depth water conservation and zero discharge technology for gas turbine power plants[J].Electric Power,2017,50(7):127-132.
[7]李瑞瑞,毛进,李乐,等.中水水源循环水排污水高回收率回用工艺应用研究[J].水处理技术,2016,42(5):100-105.LI Ruirui,MAO Jin,LI Le,et al.Research on high recovery treatment process of circulating sewage for the reclaimed water sources[J].Technology of Water Treatment,2016,42(5):100-105.
[8]朱学兵,韩东浩,徐忠明,等.火电厂含煤废水处理及回用系统设计[J].热力发电,2008,37(1):104-105.ZHU Xuebing,HAN Donghao,XU Zhongming,et al.Design of the treatment and reuse system for coal contained wastewater in power plants[J].Thermal Power Generation,2008,37(1):104-105.
[9]郭安祥,王立立,白晓春.火力发电厂生活污水处理回用于循环冷却水的中试研究[J].工业水处理,2004,24(12):43-45.GUO Anxiang,WANG Lili,BAI Xiaochun.Pilot-scale study on reclaiming domestic wastewater as circulating cooling water in a heat power plant[J].Industrial Water Treatment,2004,24(12):43-45.
[10]王冬梅,程家庆,孔繁军.脱硫废水零排放技术与工艺路线[J].工业水处理,2017,37(8):109-112.WANG Dongmei,CHENG Jiaqing,KONG Fanjun.Zero discharge technology and process route of desulfurization wastewater[J].Industrial Water Treatment,2017,37(8):109-112.
[11]张广文,孙墨杰,张蒲璇,等.燃煤火力电厂脱硫废水零排放可行性研究[J].东北电力大学学报,2014,34(5):87-91.ZHANG Guangwen,SUN Mojie,ZHANG Puxuan,et al.The study of the feasibility of zero discharge of desulfurization wastewater in coal-fired power plant[J].Journal of Northeast Dianli University,2014,34(5):87-91.
[12]佘晓利,潘卫国,郭士义,等.燃煤电厂湿法烟气脱硫废水零排放技术进展[J].应用化工,2018,47(1):160-164.SHE Xiaoli,PAN Weiguo,GUO Shiyi,et al.Advances in zero-discharge technology for wet flue gas desulfurization wastewater from coal-fired power plants[J].Applied Chemical Industry,2018,47(1):160-164.
[13]王广珠,柴紫仪,王旭初,等.水处理用粉末离子交换树脂质量指标探讨[J].热力发电,2010,39(4):23-27.WANG Guangzhu,CHAI Ziyi,WANG Xuchu,et al.An approach to quality indices of powdered ion-exchange resion used for water treatment[J].Thermal Power Generation,2010,39(4):23-27.
[14]毛进,王璟,张江涛,等.新型絮凝反应器工艺性能试验研究[J].热力发电,2010,39(5):105-107.MAO Jin,WANG Jing,ZHANG Jiangtao,et al.Study on performance test of new flocculation reactor process[J].Thermal Power Generation,2010,39(5):105-107.
[15]刘亚鹏,王金磊,陈景硕,等.火电厂脱硫废水预处理工艺优化及管式微滤膜实验研究[J].中国电力,2016,49(2):153-158.LIU Yapeng,WANG Jinlei,CHEN Jingshuo,et al.Optimization of FGD wastewater pretreatment technique for thermal power plant and test studies on tubular crossflow microfiltration process[J].Electric Power,2016,49(2):153-158.
[16]汪岚,蔡井刚,胡治平.石灰-芒硝-烟道气法软化脱硫废水的可行性分析[J].浙江电力,2016,35(2):48-50.WANG Lan,CAI Jinggang,HU Zhiping.Feasibility analysis of desulphurization wastewater softening through limemirabilite-flue gas method[J].Zhejiang Electric Power,2016,35(2):48-50.
[17]叶春松,罗珊,张弦,等.燃煤电厂脱硫废水零排放处理工艺[J].热力发电,2016,45(9):105-108.YE Chunsong,LUO Shan,ZHANG Xian,et al.Key problems and developing trend of zero discharge technology of desulfurization wastewater[J].Thermal Power Generation,2016,45(9):105-108.
[18]马双忱,武凯,万忠诚,等.旁路蒸发系统对燃煤电厂脱硫系统水平衡和氯平衡的影响[J].动力工程学报,2018,38(4):298-307.MA Shuangchen,WU Kai,WAN Zhongcheng,et al.Effect of evaporation bypass on water and chlorine balance in desulfurization system of a coal fired power plant[J].Journal of Chinese Society of Power Engineering,2018,38(4):298-307.