平原河网地区闸泵群联合调度水环境模拟
发布时间：2019-02-15 02:55
【摘要】：为探索闸泵联合调度对水环境的改善作用,以苏州城市中心区为研究对象,基于实测数据构建河网一维水动力-水质数值模型,模拟了45个关键水工调控工程;对污染源做了详细的分类计算,采用实测水质资料对模型进行验证。利用该模型研究了平水年现状调度方案下的水质变化规律,结果表明,CODCr和NH+4-N质量浓度变化与水位呈负相关,且枯水期水质呈现西北好东南差的特点。针对此特点,提出利用城市中心区闸泵群对西塘河引水量进行再分配,作为枯水期水质改善的调度方案,模拟结果表明,在新的调度方案下,大部分区域的水质都能达到更优一级的标准,各站点的污染物浓度都有大幅减少,最多减少了49.7%。
[Abstract]:In order to explore the effect of sluice and pump combined operation on the improvement of water environment, a one-dimensional hydrodynamic and water quality numerical model of river network was constructed based on the measured data, and 45 key hydraulic control projects were simulated. The pollution sources are classified and calculated in detail, and the model is verified by the measured water quality data. The model is used to study the variation of water quality under the current regulation scheme of plain water year. The results show that the variation of CODCr and NH 4-N mass concentration is negatively correlated with the water level, and the water quality in the dry season shows the characteristics of good southeast difference in northwest China. In view of this characteristic, the water diversion capacity of Xitang River is redistributed by using the sluice pump group in the central area of the city as a dispatching scheme to improve the water quality in the dry season. The simulation results show that under the new dispatching scheme, Water quality in most areas reached a higher level, with significant reductions in pollutant concentrations at all stations, up to 49.7 per cent.
【作者单位】： 河海大学水文水资源与水利工程科学国家重点实验室;河海大学水利水电学院;
【基金】：国家自然科学基金(51239003;51309085) 水利部重大公益性行业科研专项(201501007;201201017)
【分类号】：X143;TV66
本文编号：2422888
[Abstract]:In order to explore the effect of sluice and pump combined operation on the improvement of water environment, a one-dimensional hydrodynamic and water quality numerical model of river network was constructed based on the measured data, and 45 key hydraulic control projects were simulated. The pollution sources are classified and calculated in detail, and the model is verified by the measured water quality data. The model is used to study the variation of water quality under the current regulation scheme of plain water year. The results show that the variation of CODCr and NH 4-N mass concentration is negatively correlated with the water level, and the water quality in the dry season shows the characteristics of good southeast difference in northwest China. In view of this characteristic, the water diversion capacity of Xitang River is redistributed by using the sluice pump group in the central area of the city as a dispatching scheme to improve the water quality in the dry season. The simulation results show that under the new dispatching scheme, Water quality in most areas reached a higher level, with significant reductions in pollutant concentrations at all stations, up to 49.7 per cent.
【作者单位】： 河海大学水文水资源与水利工程科学国家重点实验室;河海大学水利水电学院;
【基金】：国家自然科学基金(51239003;51309085) 水利部重大公益性行业科研专项(201501007;201201017)
【分类号】：X143;TV66
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1 葛忆;顾圣平;贺军;张杰;;基于模拟与优化模式的流域水量水质联合调度研究[J];中国农村水利水电;2013年03期
，本文编号：2422888
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