南宁电厂温排水对郁江干流水温及水生态的影响程度分析  

Influence Analysis of Warm Water Discharge for Nanning Power Plant on Yujiang Water Temperature and Water Ecosystem

作　　者：肖婷婷 荣烨 陈德敏 魏科技 

机构地区：[1]珠江水资源保护科学研究所,广东广州510611

出　　处：《水电能源科学》2015年第6期31-34,共4页Water Resources and Power

基　　金：环保部公益性行业科研专项项目(2013467042);水利部公益性行业科研专项项目(201101020)

摘　　要：针对目前电厂热效率很低,多余热量必须通过冷却水循环系统带出,使受纳水域增温,从而破坏水体原有的生态环境平衡,甚至使水体恶化,导致水生生物大量死亡的问题。以取排水口位于郁江干流的南宁电厂为例,基于实测水温数据,运用数学模型计算了电厂温排水对受纳水体水温的影响范围,并通过现场采样,分析了温排水对排水口附近浮游植物、浮游动物、底栖动物的影响,计算出硅藻的特定污染敏感指数和硅藻生物指数,评价了电厂温排水对受纳水体水生态的影响程度。The thermal efficiency of power plant is very low now, and the excess heat must be brought out from the cooling water circulation system. It makes the receiving water warming so that the original water balance is destroyed, e- ven made the water deterioration and leading to the death of aquatic organisms. Taking Nanning power plant of which the water intake and outlet located near the Yujiang River for an example, based on the measured temperature data, the mathematical model is used to calculate the influence range of warm water discharge on the receiving water temperature. According to the filed sampling, the influence of warm water discharge on the phytoplankton, planktonic animal and ben- thic animal near the outfall is analyzed. The IPS and IBD index of diatoms are calculated for evaluating the influence de- gree of the receiving water quality.

关 键 词：温排水 水温 水生态 影响 

分 类 号：TV131.4[水利工程—水力学及河流动力学] X824[环境科学与工程—环境工程]