Comparison on the Technical Routes of Zero Liquid Discharge of Fossil-Fired Power Plants and Analysis on the Influencing Factors

doi:10.11930/j.issn.1004-9649.2017.06.120.05

Electric Power ›› 2017, Vol. 50 ›› Issue (6): 120-124.DOI: 10.11930/j.issn.1004-9649.2017.06.120.05

• Energy Conservation and Environmental Protection • Previous Articles Next Articles

Comparison on the Technical Routes of Zero Liquid Discharge of Fossil-Fired Power Plants and Analysis on the Influencing Factors

ZHANG Jiangtao¹, CAO Hongmei², DONG Juan¹, GUO Pengfei¹, WEI Jilin¹, WANG Hongbin¹

1. Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China;
2. Huaneng Shandong Power Generation Co., Ltd., Jinan 250014, China

Received:2017-01-24 Online:2017-06-20 Published:2017-07-12

Abstract

Abstract: The implementation of zero liquid discharge(ZLD) of fossil-fired power plants is becoming inevitable in compliance with the national environmental policy. ZLD of fossil-fired power plants is divided into two stages, i.e., advanced water-saving and terminal wastewater solidification. This article analyzes the advanced water-saving technical routes and proposes the existing problems in various types of power plants. Meanwhile, the article conducts the technical and economical comparison on the current terminal wastewater solidification methods. By taking account of multiple influencing factors, such as ultra low emission of flue gas pollutants, desulfurization process water quality, desulfurization wastewater quality and quantity, corrosion and fouling of circulating water system, etc., the article also puts forward some suggestions on the determination of ZLD route for fossil-fired power plants.

Key words: fossil-fired power plant, zero liquid discharge, deep water saving, terminal wastewater solidification, ultra low emission of flue gas pollutants

CLC Number:

TM621.8

ZHANG Jiangtao, CAO Hongmei, DONG Juan, GUO Pengfei, WEI Jilin, WANG Hongbin. Comparison on the Technical Routes of Zero Liquid Discharge of Fossil-Fired Power Plants and Analysis on the Influencing Factors[J]. Electric Power, 2017, 50(6): 120-124.

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Comparison on the Technical Routes of Zero Liquid Discharge of Fossil-Fired Power Plants and Analysis on the Influencing Factors

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