水资源保护
水資源保護
수자원보호
WATER RESOURCES PROTECTION
2013年
2期
48-52
,共5页
感潮河段%水流-水质模型%有限体积法%排污口%退水影响
感潮河段%水流-水質模型%有限體積法%排汙口%退水影響
감조하단%수류-수질모형%유한체적법%배오구%퇴수영향
tidal reach%hydrodynamic-water quality model%finite volume method%sewage outlet%sewage discharge influence
根据长江南通段的水动力、污染物输移特征,建立了平面二维非稳态水流水质模型,并利用实测的水文资料进行模型验证.结果表明,无论是流场的整体形态还是验证点的水位、流速都与实际情况符合较好.以南通市观音山污水处理厂、开发区第一污水处理厂入江整合排污口为研究实例,预测了该排污口在90%保证率下尾水对纳污江段的水环境影响,旨在为该类型河段的排污口退水影响预测提供技术依据.
根據長江南通段的水動力、汙染物輸移特徵,建立瞭平麵二維非穩態水流水質模型,併利用實測的水文資料進行模型驗證.結果錶明,無論是流場的整體形態還是驗證點的水位、流速都與實際情況符閤較好.以南通市觀音山汙水處理廠、開髮區第一汙水處理廠入江整閤排汙口為研究實例,預測瞭該排汙口在90%保證率下尾水對納汙江段的水環境影響,旨在為該類型河段的排汙口退水影響預測提供技術依據.
근거장강남통단적수동력、오염물수이특정,건립료평면이유비은태수류수질모형,병이용실측적수문자료진행모형험증.결과표명,무론시류장적정체형태환시험증점적수위、류속도여실제정황부합교호.이남통시관음산오수처리엄、개발구제일오수처리엄입강정합배오구위연구실례,예측료해배오구재90%보증솔하미수대납오강단적수배경영향,지재위해류형하단적배오구퇴수영향예측제공기술의거.
@@@@Based on the characteristics of water flow and pollutant transport in the Nantong reach of the Yangtze River, a two-dimensional unsteady hydrodynamic and water quality coupling model was established .The model was validated using measured hydrological data .The simulation results were satisfactory and the model can predict the variation trend of tidal flow accurately.A case study was conducted at an integrated sewage outlet of the Guanyinshan Sewage Treatment Plant in Nantong City .The designed hydrological condition considered the combination of the low flow at a 90% guarantee rate and the typical courses of spring tide and neap tide .Under these typical hydrological conditions , the influence of the integrated sewage outlet in the Nantong reach of the Yangtze River was simulated.This study provides a technical basis for the prediction of the influences of sewage outlets in similar river reaches.