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中国博士后科学基金(20100470759)

作品数:3 被引量:61H指数:3
相关作者:曹承进黄民生王军柳林陈振楼更多>>
相关机构:华东师范大学安徽建筑工业学院更多>>
发文基金:中国博士后科学基金国家自然科学基金国家科技重大专项更多>>
相关领域:环境科学与工程更多>>

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梯级生态浮床系统净化富营养化水体的示范工程研究被引量:4
2011年
针对富营养化严重的新角浦河,构建了梯级生态浮床系统(SFTW),开展河道水体的净化处理示范工程研究.结果表明,该系统对CODCr,NH4+-N,TN和TP的去除率最高分别可达21.26%,29.07%,37.95%和20.74%.治理后的示范河段除TN仍为劣V类外,CODCr,NH4+-N和TP出水浓度均达到V类标准,基本达到示范工程的预期目标.通过对浮游藻类的种类和富营养化指数(NQI)进行监测发现:该河段水质污染严重,所有采样点水质均严重富营养化,但SFTW对水质有一定的改善,NQI下降了3.26~12.33,说明该技术具有应用前景.
陈玉辉张勇黄民生何岩曹承进
关键词:富营养化
城市黑臭河道底泥生态疏浚技术进展被引量:45
2011年
通过调研国内外生态疏浚技术最新的研究成果,从技术特点、技术流程、技术原理、技术参数、技术使用中存在的问题以及技术的应用前景等方面介绍了底泥生态疏浚技术的基本情况和国内外研究进展.开展共性技术集成研究,力求凝炼出适用于我国城市黑臭河道内源(底泥)污染异位处理的共性技术,为我国城市河道污染控制工程提供技术借鉴和参考.
曹承进陈振楼王军黄民生钱嫦萍柳林
关键词:城市黑臭河道生态疏浚
Eutrophication and algal blooms in channel type reservoirs:A novel enclosure experiment by changing light intensity被引量:12
2011年
To explore eutrophication and algal bloom mechanisms in channel type reservoirs, a novel enclosure experiment was conducted by changing light intensity (LI) in the Daning River of the Three Gorges Reservoir (TGR). Square enclosures (side 5.0 m) were covered on the surface with shading materials of different thickness, and with their bases open to the river. Changes and characteristics of the main eutrophication factors under the same water quality and hydrodynamic conditions but different LI were evaluated. All experimental water samples were neutral and alkalescent, with high nitrogen and phosphate concentrations, low potassium permanganate index, stable water quality, and different LI. At the same water depth, LI decreased with increasing shade material, while dissolved oxygen and water temperature were both stable. The growth peak of phytoplankton was with light of 345-4390 lux underwater or 558-7450 lux above the water surface, and water temperature of 25.6--26.5℃. Algae were observed in all water samples, accounting for 6 phylum and 57 species, with algal density changing frequently. The results showed that significantly strong or weak light was unfavorable for phytoplankton growth and the function together with suitable temperature and LI and ample sunshine encouraged algal blooms under the same water quality and hydrodynamic conditions. Correlation analysis indicated that algae reduced gradually lengthwise along water depth in the same enclosure while pH became high. The power exponent relationship between chlorophyll a (Chl-a) and LI was found by curve fitting, that is Chl-a = K(LI)n.
Chengjin CaoBinghui ZhengZhenlou ChenMinsheng HuangJialei Zhang
关键词:EUTROPHICATION
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