本文選題：污水排海 + 水深��； 參考：《海洋環(huán)境科學》2017年05期

【摘要】：采用數(shù)值模擬的方法,在污水排放規(guī)模為10萬m3/d,COD濃度為50 mg/L的情況下,計算并分析了24 h連續(xù)排放、高潮時至落急、高潮時至低潮時3種排污時段下分別位于-4 m、-6 m、-8 m和-10 m4個水深位置的不同污水排海方式情況下,污染物輸移擴散對南通通州灣海域的影響。結果表明,由于水動力條件的不同,不同位置排放口的絕對影響范圍也產(chǎn)生變化,且隨著水深的增加,水交換能力越強,污染物影響范圍越小;在排放總量一定的情況下,不同時段排放時,污染物影響范圍也不同,24 h連續(xù)排放對水環(huán)境影響最小,高潮時到落急、高潮時至低潮時時段排放時一定程度上控制了高濃度污染物擴散對近海海域的影響。
[Abstract]:With the numerical simulation method, under the condition that the effluent discharge scale is 100000 m3 / dl and the COD concentration is 50 mg / L, the 24 h continuous discharge is calculated and analyzed. The effects of pollutant transport and diffusion on Tongzhou Bay, Nantong under the conditions of different sewerage modes, which are located at four water depths of -4 m ~ (-6) m ~ (-8 m) and -10 m ~ (4) water depth, respectively, from high tide to low tide. The results show that, because of the different hydrodynamic conditions, the absolute influence range of the discharge outlet at different locations also changes, and with the increase of water depth, the stronger the water exchange capacity, the smaller the impact range of pollutants. At different periods of time, the influence range of pollutants on water environment is the least in 24 h continuous discharge, and the influence of high concentration pollutant diffusion on offshore waters is controlled to a certain extent during the period from high tide to low tide.
【作者單位】： 河海大學海岸災害及防護教育部重點實驗室;河海大學環(huán)境海洋實驗室;南京師范大學虛擬地理環(huán)境教育部重點實驗室;南京師范大學江蘇省地理環(huán)境演化國家重點實驗室培育建設點;南京師范大學江蘇省地理信息資源開發(fā)與利用協(xié)同創(chuàng)新中心;
【基金】：國家自然科學基金項目(41276017)
【分類號】：X55;X703
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本文編號：2099420