凝结水精处理再生废水减量及资源化研究

doi:10.11930/j.issn.1004-9649.201905109

中国电力 ›› 2020, Vol. 53 ›› Issue (11): 252-256.DOI: 10.11930/j.issn.1004-9649.201905109

• 节能与环保 • 上一篇

凝结水精处理再生废水减量及资源化研究

王园园¹, 高艳锋², 胡大龙¹, 孟龙¹, 李健博¹, 李俊菀¹, 王璟¹, 李昭¹

1. 西安热工研究院有限公司，陕西西安 710054;
2. 中国电力工程顾问集团西北电力设计院有限公司，陕西西安 710075

收稿日期:2019-05-24 修回日期:2019-12-25 出版日期:2020-11-05 发布日期:2020-11-05
作者简介:王园园（1988—），女，硕士，工程师，从事火电厂水处理技术及防腐防垢研究，E-mail：wangyuanyuan@tpri.com.cn;胡大龙（1988—），男，通信作者，硕士，从事火电厂废水处理回用及废水零排放技术研究，E-mail：hudalong@tpri.com.cn

Study on Reduction and Recycling of the Regenerated Wastewater from Condensate Polishing

WANG Yuanyuan¹, GAO Yanfeng², HU Dalong¹, MENG Long¹, LI Jianbo¹, LI Junwan¹, WANG Jing¹, LI Zhao¹

1. Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China;
2. Northwest Electric Power Design Institute of China Power Engineering Consulting Group, Xi'an 710075, China

Received:2019-05-24 Revised:2019-12-25 Online:2020-11-05 Published:2020-11-05

摘要/Abstract

摘要： 凝结水精处理系统（精处理）再生废水影响全厂废水达标排放，增加废水零排放系统投资和运行费用。为降低其不良影响，从减少再生废水量及对再生废水进行分类处理、利用等方面进行分析，提出2种解决方案，一是通过给水加氧处理和高速混床优化等措施，减少精处理再生废水量；二是精处理阳树脂优先采用H₂SO₄再生工艺，再生废水可作为脱硫工艺用水循环利用。对于不具备H₂SO₄再生工艺改造条件的电厂，可根据再生各步序水质特点，将精处理再生废水中低含盐量废水作为工业水循环利用，高含盐量废水制取次氯酸钠或肥料，实现资源化利用。

关键词: 凝结水精处理, 再生废水, 给水加氧处理, 高速混床, 运行优化, 废水资源化

Abstract: The regenerated wastewater from condensate polishing treatment system may have significant impacts on the performance of the entire plant in that once the national standard for the discharge of wastewater is not reached, more investment will be needed and operation cost will rise up for zero wastewater discharge system. In order to reduce the side effects of regeneration wastewater, the following two schemes are put forward in the aspects of analysis on the reduction of the regeneration wastewater amount as well as the classification and treatment of the regeneration wastewater. One option is to reduce the volume of recycled waste water through feedwater oxygenated treatment and high-speed mixing bed optimization measures. While the other option is by giving the priority of implementing the H₂SO₄ regeneration technique in the fine treatment of positive resin, the recycled wastewater could be reused in the desulfurization process. For those power plants which are not qualified for H₂SO₄ regeneration process, according to the characteristics of the water quality of each step of regeneration, the recycled wastewater of low saline content can be reused as industrial water, while the high saline content wastewater can be treated to produce sodium hypochlorite or fertilizer to realize resource recovery.

Key words: condensate polishing, regeneration wastewater, feedwater oxygenated treatment, high speed mixed bed, operation optimization, wastewater resource conversion

王园园, 高艳锋, 胡大龙, 孟龙, 李健博, 李俊菀, 王璟, 李昭. 凝结水精处理再生废水减量及资源化研究[J]. 中国电力, 2020, 53(11): 252-256.

WANG Yuanyuan, GAO Yanfeng, HU Dalong, MENG Long, LI Jianbo, LI Junwan, WANG Jing, LI Zhao. Study on Reduction and Recycling of the Regenerated Wastewater from Condensate Polishing[J]. Electric Power, 2020, 53(11): 252-256.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201905109

https://www.electricpower.com.cn/CN/Y2020/V53/I11/252

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凝结水精处理再生废水减量及资源化研究

Study on Reduction and Recycling of the Regenerated Wastewater from Condensate Polishing

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凝结水精处理再生废水减量及资源化研究

Study on Reduction and Recycling of the Regenerated Wastewater from Condensate Polishing

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