离子交换再生废水资源化研究及系统设计与应用

doi:10.11930/j.issn.1004-9649.201703005

中国电力 ›› 2017, Vol. 50 ›› Issue (11): 168-174.DOI: 10.11930/j.issn.1004-9649.201703005

离子交换再生废水资源化研究及系统设计与应用

连坤宙¹, 胡特立¹, 王璟¹, 庞胜林², 何高祥², 曹世海², 邓强强²

1. 西安热工研究院有限公司,陕西西安 710032;
2. 华能玉环电厂,浙江玉环 317604

收稿日期:2017-03-19 出版日期:2017-11-25 发布日期:2017-11-29
作者简介:连坤宙（1986—）,男,山西运城人,工程师,从事电厂水处理技术研究。E-mail: liankunzhou@tpri.com.cn
基金资助:
中国华能集团公司总部资助项目“发电厂废水排放控制及应用研究”（HNKJ17-H15）

Study on Process Design and Application of the Resourcfulization of Regenerated Wastewater Using Ion-Exchange Resin Method

LIAN Kunzhou¹, HU Teli¹, WANG Jing¹, PANG Shenglin², HE Gaoxiang², CAO Shihai², DENG Qiangqiang²

1. Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710032, China;
2. Huaneng Yuhuan Power Plant, Yuhuan 317604, China

Received:2017-03-19 Online:2017-11-25 Published:2017-11-29
Supported by:
This work is supported by China Huaneng Group Headquarter Project of emission control and applied research on waste water in power plant (No. HNKJ-H15).

摘要/Abstract

摘要： 针对火电厂离子交换再生废水水质特点,提出“加碳固氨-超滤-反渗透-脱气膜”废水处理新工艺方案。将该方案应用于国内某百万千瓦机组大型火电厂,完成了离子交换再生废水改造工程设计和工程建设,并对系统进行了调试运行和性能试验。结果表明：采用新工艺处理火电厂离子交换再生废水,当苦咸水反渗透系统回收率为75%时,系统脱盐率可达97%;当海水反渗透系统回收率为50%时,系统脱盐率可达98%。反渗透浓水经脱气膜系统处理后,氨的去除率可达99%,处理后的浓水去电解制氯系统用于制取次氯酸钠,分离出的铵盐可用于厂区绿化或外售,淡水则可回用于工业水系统。实践表明,所研制的离子交换再生废水处理方案切实可行,具有显著的环境效益和社会效益。

关键词: 离子交换, 再生废水, 反渗透, 脱气膜, 氨回收

Abstract: According to the characteristics of the wastewater from exchange resin regeneration in power plants, a new process consisting of ammonia fixing-ultrafiltration(UF)-reverse osmosis (RO)-degassing membrane is proposed and applied in a domestic 1 000 MW generator unit. with the system design and project construction, as well as the commissioning and performance tests being carried out. The results show that in the treatment of the wastewater from exchange resin regeneration using the new technique, when the recovery rate of saline water RO system is 75% and that of seawater RO system is 50%, the desalination rate can reach up to 97% and 98%, respectively. After the condensed water of RO system is treated by the degassing membrane, the removal rate of ammonia can reach 99%. The produced condensed water can be electrolyzed to make sodium hypochlorite, The ammonium salts separated from above process can be sold or used in plant greening while the fresh water can be used in industrial water system simultaneously. The practice indicates that the treatment process is feasible and is of great environmental and social benefits.

Key words: ion exchange, regeneration wastewater, reverse osmosis, degassing membrane, ammonia recovery

中图分类号:

TM311

连坤宙, 胡特立, 王璟, 庞胜林, 何高祥, 曹世海, 邓强强. 离子交换再生废水资源化研究及系统设计与应用[J]. 中国电力, 2017, 50(11): 168-174.

LIAN Kunzhou, HU Teli, WANG Jing, PANG Shenglin, HE Gaoxiang, CAO Shihai, DENG Qiangqiang. Study on Process Design and Application of the Resourcfulization of Regenerated Wastewater Using Ion-Exchange Resin Method[J]. Electric Power, 2017, 50(11): 168-174.

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https://www.electricpower.com.cn/CN/Y2017/V50/I11/168

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离子交换再生废水资源化研究及系统设计与应用

Study on Process Design and Application of the Resourcfulization of Regenerated Wastewater Using Ion-Exchange Resin Method

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Study on Process Design and Application of the Resourcfulization of Regenerated Wastewater Using Ion-Exchange Resin Method

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