Article(id=1221425790961504602, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202205099, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652544000000, receivedDateStr=2022-05-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769140201559, onlineDateStr=2026-01-23, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769140201559, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769140201559, creator=13701087609, updateTime=1769140201559, updator=13701087609, issue=Issue{id=1221425781750808678, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='1', pageStart='1', pageEnd='182', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769140199363, creator=13701087609, updateTime=1769145231708, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221446888994292213, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221446888994292214, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221425781750808678, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=177, endPage=182, ext={EN=ArticleExt(id=1221425791179608422, articleId=1221425790961504602, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Membrane fouling analysis for zero liquid discharge treatment system in a power plant, columnId=1211002409397129992, journalTitle=Thermal Power Generation, columnName=Power generation technology forum, runingTitle=null, highlight=null, articleAbstract=

In order to realize zero liquid discharge, a power plant treated circulating wastewater by the combination process of two stage softening and clarification, media filtration, ultrafiltration, nanofiltration (NF) and reverse osmosis (RO), and treated terminal wastewater by the combination process of chemical softening, tubular microfiltration (MF), NF, seawater desalination reverse osmosis, electrodialysis (ED) and evaporative crystallization. After the above measures were taken for 1 year, insufficient NF output was found in the circulating wastewater treatment system, and serious MF membrane organic fouling and ED silicon scaling was observed in the terminal wastewater treatment system. Thus, the causes of the membrane fouling was analyzed and the desulfurization process water was optimized to reduce the chemical oxygen demand (COD) of desulfurization wastewater from the source. Moreover, the MF operation mode was optimized, so as to slow down the MF organic pollution phenomenon. In addition, the RO concentrated water of circulating water treatment mode was adjusted, and the total silicon mass concentration was reduced to less than 1 mg/L before being fed into the ED equipment, to solve the problem of the ED silicon scaling.

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某电厂采用“两级软化澄清+介质过滤+超滤+纳滤+反渗透”组合工艺处理循环水排污水,采用“化学软化+管式微滤+纳滤+海水淡化反渗透+电渗析+蒸发结晶”组合工艺处理末端废水,以实现全厂废水“零排放”。工程投运1年后,循环水处理系统出现纳滤出力不足,末端废水处理系统存在微滤膜有机污堵严重、电渗析硅结垢等问题。分析了膜污堵原因,对脱硫工艺用水进行了优化,从源头降低了脱硫废水化学需氧量(COD);同时优化了微滤运行方式,从而减缓了微滤有机污堵现象;此外,调整了循环水反渗透浓水处理方式,将全硅质量浓度降至1 mg/L以下后再进入电渗析设备,解决了电渗析硅结垢的问题。

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李亚娟(1983),女,硕士,高级工程师,主要研究方向为火电厂水处理技术,

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李亚娟(1983),女,硕士,高级工程师,主要研究方向为火电厂水处理技术,

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某电厂废水零排放系统污堵分析
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李亚娟 , 卢剑 , 余耀宏 , 韩锐 , 张宁
热力发电 | 发电技术论坛 2023,52(1): 177-182
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热力发电 | 发电技术论坛 2023, 52(1): 177-182
某电厂废水零排放系统污堵分析
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李亚娟 , 卢剑, 余耀宏, 韩锐, 张宁
作者信息
  • 西安西热水务环保有限公司,高效灵活煤电及碳捕集利用封存全国重点实验室,陕西 西安 710054
  • 李亚娟(1983),女,硕士,高级工程师,主要研究方向为火电厂水处理技术,

Membrane fouling analysis for zero liquid discharge treatment system in a power plant
Yajuan LI , Jian LU, Yaohong YU, Rui HAN, Ning ZHANG
Affiliations
  • Xi'an TPRI Water-Management & Environmental Protection Co, Ltd, State Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Xi'an 710054, China
出版时间: 2023-01-25 doi: 10.19666/j.rlfd.202205099
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某电厂采用“两级软化澄清+介质过滤+超滤+纳滤+反渗透”组合工艺处理循环水排污水,采用“化学软化+管式微滤+纳滤+海水淡化反渗透+电渗析+蒸发结晶”组合工艺处理末端废水,以实现全厂废水“零排放”。工程投运1年后,循环水处理系统出现纳滤出力不足,末端废水处理系统存在微滤膜有机污堵严重、电渗析硅结垢等问题。分析了膜污堵原因,对脱硫工艺用水进行了优化,从源头降低了脱硫废水化学需氧量(COD);同时优化了微滤运行方式,从而减缓了微滤有机污堵现象;此外,调整了循环水反渗透浓水处理方式,将全硅质量浓度降至1 mg/L以下后再进入电渗析设备,解决了电渗析硅结垢的问题。

燃煤电厂  /  零排放工程  /  膜浓缩  /  蒸发结晶  /  有机污堵  /  硅结垢

In order to realize zero liquid discharge, a power plant treated circulating wastewater by the combination process of two stage softening and clarification, media filtration, ultrafiltration, nanofiltration (NF) and reverse osmosis (RO), and treated terminal wastewater by the combination process of chemical softening, tubular microfiltration (MF), NF, seawater desalination reverse osmosis, electrodialysis (ED) and evaporative crystallization. After the above measures were taken for 1 year, insufficient NF output was found in the circulating wastewater treatment system, and serious MF membrane organic fouling and ED silicon scaling was observed in the terminal wastewater treatment system. Thus, the causes of the membrane fouling was analyzed and the desulfurization process water was optimized to reduce the chemical oxygen demand (COD) of desulfurization wastewater from the source. Moreover, the MF operation mode was optimized, so as to slow down the MF organic pollution phenomenon. In addition, the RO concentrated water of circulating water treatment mode was adjusted, and the total silicon mass concentration was reduced to less than 1 mg/L before being fed into the ED equipment, to solve the problem of the ED silicon scaling.

coal-fired power plant  /  zero liquid discharge project  /  membrane concentration  /  evaporation crystallization  /  organic fouling  /  silicon scaling
李亚娟, 卢剑, 余耀宏, 韩锐, 张宁. 某电厂废水零排放系统污堵分析. 热力发电, 2023 , 52 (1) : 177 -182 . DOI: 10.19666/j.rlfd.202205099
Yajuan LI, Jian LU, Yaohong YU, Rui HAN, Ning ZHANG. Membrane fouling analysis for zero liquid discharge treatment system in a power plant[J]. Thermal Power Generation, 2023 , 52 (1) : 177 -182 . DOI: 10.19666/j.rlfd.202205099
2023年第52卷第1期
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doi: 10.19666/j.rlfd.202205099
  • 接收时间:2022-05-15
  • 首发时间:2026-01-23
  • 出版时间:2023-01-25
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  • 收稿日期:2022-05-15
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    西安西热水务环保有限公司,高效灵活煤电及碳捕集利用封存全国重点实验室,陕西 西安 710054
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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