商〓颂,薛祥山,张中元,杨〓刚,刘改妮.水动力水质模拟在黑臭湖体治理中的应用[J].水电能源科学,2018,36(10):58-61
水动力水质模拟在黑臭湖体治理中的应用
Application of Hydrodynamics and Water Quality Simulation in Treatment of Black and malodorous Lake Body
  
DOI:
中文关键词:  琵琶湖  黑臭水体  治理效果  水动力水质模拟  流场  浓度场
英文关键词:Lute Lake  black and malodorous water  governance effect  hydrodynamics and water quality simulation  flow field  concentration field
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作者单位
商〓颂,薛祥山,张中元,杨〓刚,刘改妮 北京清控人居环境研究院有限公司 北京 100083 
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中文摘要:
      为分析琵琶湖黑臭水体治理效果,应用水动力水质模拟方法,根据琵琶湖水体流动及污染物运移扩散规律等,构建水动力及水质数学模型,通过模拟现状、经工程治理后湖体的流场和污染物浓度场及湖体水质达标时间,对比分析工程治理前后的效果。结果表明,水体治理工程实施后,湖体流场变得均匀;湖体大部分水域COD浓度达到Ⅳ类水质标准;但因湖体现状TN浓度较高,水体治理工程实施后短时间内TN浓度仍严重超标;TP浓度经工程治理后降低明显,基本达到Ⅳ类水质标准。此外,根据湖体水质达标时间模拟结果,在保证工程实施后湖体补水入湖水质维持达标的情况下,至少需50 d才可使湖体超标最为严重的TN达到Ⅳ类水质标准。
英文摘要:
      In order to analyze the effect of black and malodorous water treatment in Lute Lake, hydrodynamics and water quality simulation method was used to establish mathematical models of hydrodynamics and water quality based on the water flow and pollutant migration diffusion rules. Through simulating the flow field and concentration field of Lute Lake before and after project treatment, as well as simulating water quality standard time, the effects before and after engineering treatment were compared. The results indicates that after the implementation of black and malodorous water treatment project, the lake flow field becomes even. The COD concentration of most of the lake reaches the category Ⅳ water quality standard. Because the TN concentration of the lake is relatively high, the TN concentration is still exceeding the standard in short time after the implementation of water treatment project. After treatment, the concentration of TP decreases obviously and basically reaches category Ⅳ water quality standard. Besides, according to the results of water quality standard time simulation, in the premise of ensuring the water quality of lake body inflow during the long simulation time, it will take at least 50 days after the complete implementation of black and malodorous water treatment project to make the most serious TN of the lake reach the category Ⅳ water quality standard.
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