火电厂循环水零外排技术研究及应用
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摘要
针对循环水零外排技术在某火电厂4×600 MW机组的工业应用情况及节水减排效益进行研究。结果表明:采用具有阻垢、缓蚀、杀菌性能的新型高效药剂,并设置循环水旁流过滤系统,维持循环水浊度在20 NTU以下,能够保证循环水系统在浓缩倍率10～12时安全稳定运行,循环水全部厂内消纳不外排;该技术应用后,循环水补水量可减少934 m~3/h,循环水外排量可减少645 m~3/h,获得节水减排效益457万元/年。该研究成果可为低成本火电厂废水零排放提供新思路。
The industrial application of circulating water zero discharge technology in a 600 MW grade thermal power plant and its benefit of water saving and emission reduction were studied. The results show that, by using new high efficiency reagent with performances of anti-scale, anti-corrosion and bactericide, and building side flow filtration system to keep the turbidity below 20 NTU, the circulating water system could run without scale,corrosion and biological silt at concentration ratio of 10～12. After the application of this technology, the flow of make-up water reduced by 934 m~3/h and the circulating water discharge reduced by 645 m~3/h, with a benefit of water saving and emission reduction of 4.57 million yuan per year. The research results provide a new thought for low-cost wastewater zero discharge of thermal power plants, with vast applied prospects.
The industrial application of circulating water zero discharge technology in a 600 MW grade thermal power plant and its benefit of water saving and emission reduction were studied. The results show that, by using new high efficiency reagent with performances of anti-scale, anti-corrosion and bactericide, and building side flow filtration system to keep the turbidity below 20 NTU, the circulating water system could run without scale,corrosion and biological silt at concentration ratio of 10～12. After the application of this technology, the flow of make-up water reduced by 934 m~3/h and the circulating water discharge reduced by 645 m~3/h, with a benefit of water saving and emission reduction of 4.57 million yuan per year. The research results provide a new thought for low-cost wastewater zero discharge of thermal power plants, with vast applied prospects.
引文
[1]张江涛,董娟.火力发电厂循环排污水处理回用技术的比较分析[J].水处理技术,2012,38(8):124-127.ZHANG Jiangtao,DONG Juan.Compare and analysis of recycling utilization technology of blow-down water from circulating water of fossil-fired power plant[J].Technology of Water Treatment,2012,38(8):124-127.
[2]刘志江,胡彦云,郭焱.浸没式超滤技术在循环冷却水排污水回用中的应用[J].热力发电,2013,42(1):84-86.LIU Zhijiang,HU Yanyun,GUO Yan.Application of immersed ultrafiltration recycling technology for blowdown water of reclaimed water from 600 MWthermal power unit[J].Thermal Power Generation,2013,42(1):84-86.
[3]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.
[4]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.
[5]杨宝红,余耀宏.火电厂循环水排污水回用处理中超滤膜污染过程分析[J].电力科学与技术学报,2007,22(4):79-83.YANG Baohong,YU Yaohong.Ultrafiltration membrane Fouling process analysis for reuse the blowdown water in thermal power plant[J].Journal of Electric Power Science and Technology,2007,22(4):79-83.
[6]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):38-41.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):38-41.
[7]陈颖敏,孙心利,吴静然.循环水排污水回用中磷系阻垢剂对混凝效果的影响及措施[J].热力发电,2010,39(1):95-99.CHEN Yingmin,SUN Xinli,WU Jingran.Influence of phospherous antiscalant used in recycling utilization system of blow-down water from circulating water upon the coagulation effect[J].Thermal Power Generation,2010,39(1):95-99.
[8]田利,黄善锋,罗奖合,等.循环水杀菌剂对反渗透膜影响的研究[J].热力发电,2010,39(6):29-33.TIAN Li,HUANG Shanfeng,LUO Jianghe,et al.Study on influence of bactericide in circulating water upon the reverse-osmosis membrane[J].Thermal Power Generation,2010,39(6):29-33.
[9]孙心利,王平,李路江.火力发电厂循环水排污水回用预处理工艺分析[J].电力科学与技术学报,2010,25(2):89-93.SUN Xinli,WANG Ping,LI Lujiang.Pretreatment techniques analysis for circulating drainage water recovery in thermal power plant[J].Journal of Electric Power Science and Technology,2010,25(2):89-93.
[10]李瑞瑞,姜琪,余耀宏,等.循环水排污水回用软化处理工艺[J].热力发电,2014,43(5):117-120.LI Ruirui,JIANG Qi,YU Yaohong,et al.Recovery utilization of circulating sewage with softening technique[J].Thermal Power Generation,2014,43(5):117-120.
[11]耿晓杰,凌小凤,孙慧,等.电厂循环水排污水回用混凝处理实验研究[J].河北电力技术,2015,34(1):28-29.GENG Xiaojie,LING Xiaofeng,SUN Hui,et al.Experimental research on coagulation of circulating waste water in power plant[J].Hebei Electric Power,2015,34(1):28-29.
[12]李永立,王应高,邓建平,等.火电厂循环排污水采用混凝工艺回用处理研究[J].华北电力技术,2007(5):1-3.LI Yongli,WANG Yinggao,DENG Jianping,et al.Research on recovery use of circulating sewage with coagulation technique in thermal power plant[J].North China Electric Power,2007(5):1-3.
[13]姜琳,王岽,郦和生.强化混凝在循环水系统排污水回用中的应用[J].工业水处理,2006,26(10):87-89.JIANG Lin,WANG Dong,LI Hesheng.Application of enhanced coagulation technology to reusing effluent in circulating water system[J].Industrial Water Treatment,2006,26(10):87-89.
[14]黄晓东,孙伟,庄汉平,等.强化混凝处理微污染源水[J].中国给水排水,2002,18(12):45-47.HUANG Xiaodong,SUN Wei,ZHUANG Hanping,et al.Enhanced coagulation treatment of micro-polluted source water[J].China Water&Wastewater,2002,18(12):45-47.
[15]方建章,黄少斌.西江水的强化混凝试验研究[J].环境科学与技术,2004,27(1):18-20.FANG Jianzhang,HUANG Shaobin.An enhanced coagulation experiment for water of downstream Xijiang river[J].Environmental Science and Technology,2004,27(1):18-20.
[16]李瑞瑞,姜琪,余耀宏,等.臭氧-生物活性炭工艺去除工业废水中难降解有机物的试验[J].热力发电,2016,45(1):99-104.LI Ruirui,JIANG Qi,YU Yaohong,et al.Experimental research on removing refractory organics from industrial waste water with ozone-BAC processes[J].Thermal Power Generation,2016,45(1):99-104.
[17]王占金,于衍真.臭氧生物活性炭工艺去除水源水中有机物的研究进展[J].江苏化工,2008,36(5):7-10.WANG Zhanjin,YU Yanzhen.Removal the organic pollutions in drinking water with O3-BAC process[J].Jiangsu Chemical Industry,2008,36(5):7-10.
[2]刘志江,胡彦云,郭焱.浸没式超滤技术在循环冷却水排污水回用中的应用[J].热力发电,2013,42(1):84-86.LIU Zhijiang,HU Yanyun,GUO Yan.Application of immersed ultrafiltration recycling technology for blowdown water of reclaimed water from 600 MWthermal power unit[J].Thermal Power Generation,2013,42(1):84-86.
[3]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.
[4]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.
[5]杨宝红,余耀宏.火电厂循环水排污水回用处理中超滤膜污染过程分析[J].电力科学与技术学报,2007,22(4):79-83.YANG Baohong,YU Yaohong.Ultrafiltration membrane Fouling process analysis for reuse the blowdown water in thermal power plant[J].Journal of Electric Power Science and Technology,2007,22(4):79-83.
[6]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):38-41.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):38-41.
[7]陈颖敏,孙心利,吴静然.循环水排污水回用中磷系阻垢剂对混凝效果的影响及措施[J].热力发电,2010,39(1):95-99.CHEN Yingmin,SUN Xinli,WU Jingran.Influence of phospherous antiscalant used in recycling utilization system of blow-down water from circulating water upon the coagulation effect[J].Thermal Power Generation,2010,39(1):95-99.
[8]田利,黄善锋,罗奖合,等.循环水杀菌剂对反渗透膜影响的研究[J].热力发电,2010,39(6):29-33.TIAN Li,HUANG Shanfeng,LUO Jianghe,et al.Study on influence of bactericide in circulating water upon the reverse-osmosis membrane[J].Thermal Power Generation,2010,39(6):29-33.
[9]孙心利,王平,李路江.火力发电厂循环水排污水回用预处理工艺分析[J].电力科学与技术学报,2010,25(2):89-93.SUN Xinli,WANG Ping,LI Lujiang.Pretreatment techniques analysis for circulating drainage water recovery in thermal power plant[J].Journal of Electric Power Science and Technology,2010,25(2):89-93.
[10]李瑞瑞,姜琪,余耀宏,等.循环水排污水回用软化处理工艺[J].热力发电,2014,43(5):117-120.LI Ruirui,JIANG Qi,YU Yaohong,et al.Recovery utilization of circulating sewage with softening technique[J].Thermal Power Generation,2014,43(5):117-120.
[11]耿晓杰,凌小凤,孙慧,等.电厂循环水排污水回用混凝处理实验研究[J].河北电力技术,2015,34(1):28-29.GENG Xiaojie,LING Xiaofeng,SUN Hui,et al.Experimental research on coagulation of circulating waste water in power plant[J].Hebei Electric Power,2015,34(1):28-29.
[12]李永立,王应高,邓建平,等.火电厂循环排污水采用混凝工艺回用处理研究[J].华北电力技术,2007(5):1-3.LI Yongli,WANG Yinggao,DENG Jianping,et al.Research on recovery use of circulating sewage with coagulation technique in thermal power plant[J].North China Electric Power,2007(5):1-3.
[13]姜琳,王岽,郦和生.强化混凝在循环水系统排污水回用中的应用[J].工业水处理,2006,26(10):87-89.JIANG Lin,WANG Dong,LI Hesheng.Application of enhanced coagulation technology to reusing effluent in circulating water system[J].Industrial Water Treatment,2006,26(10):87-89.
[14]黄晓东,孙伟,庄汉平,等.强化混凝处理微污染源水[J].中国给水排水,2002,18(12):45-47.HUANG Xiaodong,SUN Wei,ZHUANG Hanping,et al.Enhanced coagulation treatment of micro-polluted source water[J].China Water&Wastewater,2002,18(12):45-47.
[15]方建章,黄少斌.西江水的强化混凝试验研究[J].环境科学与技术,2004,27(1):18-20.FANG Jianzhang,HUANG Shaobin.An enhanced coagulation experiment for water of downstream Xijiang river[J].Environmental Science and Technology,2004,27(1):18-20.
[16]李瑞瑞,姜琪,余耀宏,等.臭氧-生物活性炭工艺去除工业废水中难降解有机物的试验[J].热力发电,2016,45(1):99-104.LI Ruirui,JIANG Qi,YU Yaohong,et al.Experimental research on removing refractory organics from industrial waste water with ozone-BAC processes[J].Thermal Power Generation,2016,45(1):99-104.
[17]王占金,于衍真.臭氧生物活性炭工艺去除水源水中有机物的研究进展[J].江苏化工,2008,36(5):7-10.WANG Zhanjin,YU Yanzhen.Removal the organic pollutions in drinking water with O3-BAC process[J].Jiangsu Chemical Industry,2008,36(5):7-10.