燃气电厂深度节水及废水零排放方案

doi:10.11930/j.issn.1004-9649.2017.07.127.06

摘要/Abstract

摘要： 为满足越来越严格的环保政策要求,开展燃气电厂深度节水及废水零排放技术研究具有重要的意义。对某燃气电厂的取水、排水、耗水量及全厂水量平衡情况进行分析,针对燃气电厂没有可消耗高盐废水的脱硫、输煤和除渣末端用水系统的特点,提出了其深度节水及废水零排放方案。首先通过改善循环水补充水水质,提高循环水浓水倍率,大幅减少电厂取排水水量;其次将循环水排污水和化学水处理系统反渗透浓水,通过逐级浓缩,减少高盐废水量;最终将少量末端高盐废水进行蒸发结晶处理,实现全厂废水零排放。

关键词: 燃气电厂, 深度节水, 零排放, 浓缩

Abstract: In order to meet the increasingly stringent environmental policy requirements, it is of great significance to carry out the research on in-depth water conservation and zero discharge technologies for gas turbine power plants. In this paper, the water intake, discharge and consumption, as well as the water balance in a gas turbine power plantare analyzed . Based on the situation that the gas turbine power plant does not have a system of desulfurization, coal handling and deslagging that is able to consume high salinity waste water, an in-depth water conservation and zero discharge method is proposed. First, by improving the make-up water quality for the circulating system, the concentration rate is increased, and the water intake and discharge are substantially reduced. Second, the circulating sewage and reverse osmosis concentrate are concentrated by stages to reduce the high salinity waste water. At last, the small amount of high salinity waste water are evaporated and crystallized. Thus, the waste water zero discharge is achieved.

Key words: gas turbine power plant, in-depth water conservation, zero discharge, concentration

中图分类号:

X703

张志国, 胡大龙, 王璟, 余耀宏, 许臻. 燃气电厂深度节水及废水零排放方案[J]. 中国电力, 2017, 50(7): 127-132.

ZHANG Zhiguo, HU Dalong, WANG Jing, YU Yaohong, XU Zhen. The in-Depth Water Conservation and Zero Discharge Technology for Gas Turbine Power Plants[J]. Electric Power, 2017, 50(7): 127-132.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.2017.07.127.06

https://www.electricpower.com.cn/CN/Y2017/V50/I7/127

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