Study on method of domestic wastewater treatment through new-type multi-layer artificial wetland
Study on method of domestic wastewater treatment through new-type multi-layer artificial wetland
复制标题
新型多层人工湿地处理生活污水方法研究
DOI：
10.1016/j.ijhydene.2015.05.165
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发表时间：
2015-09
影响因子：
7.2
通讯作者：
Bai Xiao
中科院分区：
文献类型：
--
作者：
Lu Shibao;Pei Liang;Bai Xiao
人工湿地由碎石、砾石等基质和附着在其上的水生植物组成，废水在湿地基质表层或表层以下流动，通过基质附着、植物吸收、微生物转化等一系列过程分解水中的营养物质，属于独特的土壤-植物-微生物系统，与湿地不同。介绍了一种新型的多层人工湿地处理生活污水，并分析了该工艺对CODCr、BOD 5、NH3-N、TN、TP的去除效果。结果表明，当水力负荷达到0.44 m3/（m2 d）左右，水力停留时间为3d时，湿地对CODCr、BOD 5、NH3-N、TN和TP的去除效果较好，平均去除率分别达到90.6%、87.9%、66.7%、63.4%和92.6%。出水COD_（Cr）约为14.1 ± 30.8 mg/L，BOD_5约为8.2 ± 13.1 mg/L，NH_3-N约为9.9 ± 19.6 mg/L，TN约为17.3 ± 28.7 mg/L，TP小于1.2 mg/L。出水水质超过农田灌溉水质标准（GB 5084 -2005）。植物密度、温度变化、进水污染物浓度等因素与湿地处理效果有较大的相关性。一般来说，当温度高于24 °C时，种植密度越大，污染物浓度越低，处理效果越好。
The artificial wetland is comprised of such groundmasses as breakstone and gravel etc as well as aquatic plant attached to it. The wastewater flows in or beneath surface layer of groundmass at the wetland, and decomposes nutritive materials in water through such a serial processes as attachment to groundmass, absorption by plant and microbial conversion etc, which belongs to distinctive soil-plant-microbe system that is differentiated from the wetland. This paper introduces a new-type multi-layer artificial wetland for treatment of domestic sewage, and analyzes the removing effects of CODCr, BOD5, NH3–N, TN and TP in this approach. The results indicate that when hydraulic loading reaches approximately 0.44 m3/(m2d) and hydraulic retaining duration reaches 3 days, the effect of removing CODCr, BOD5, NH3–N, TN and TP from the wetland is relatively good, and the average removing rate achieves 90.6%, 87.9%, 66.7%, 63.4 and 92.6% respectively, and the effluent CODCrreaches approximately 14.1∼30.8 mg/L, BOD5reaches approximately 8.2∼13.1 mg/L,NH3–N reaches approximately 9.9∼19.6 mg/L, TN reaches approximately 17.3∼28.7 mg/L and TP reaches less than 1.2 mg/L. Thus the effluent exceeds farmland irrigation water quality standards (GB5084-2005). Such factors as planting density, temperature variation and influent contaminant concentration have relatively great correlation with efficiency of wetland treatment. Generally speaking, when the temperature is higher than 24 °C, the higher planting density and lower contaminant concentration reaches, the better effect of the treatment would realize.
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影响因子：
1.1
作者：
Wen‐Gen Liao;Shibua Lu;Ji-hong Qu
通讯作者：
Wen‐Gen Liao;Shibua Lu;Ji-hong Qu
DOI：
10.1016/j.cnsns.2007.02.009
发表时间：
2008-11
影响因子：
3.9
作者：
Zhanming Chen;Bin Chen;Jing Zhou;Z. Li;Y. Zhou;X. Xi;C. Lin;Guoqian Chen
通讯作者：
Zhanming Chen;Bin Chen;Jing Zhou;Z. Li;Y. Zhou;X. Xi;C. Lin;Guoqian Chen
影响因子：
--
作者：
Lu Shao
通讯作者：
Lu Shao
影响因子：
7.2
作者：
S. Mohan;G. Mohanakrishna;S. Ramanaiah;P. N. Sarma
通讯作者：
S. Mohan;G. Mohanakrishna;S. Ramanaiah;P. N. Sarma
DOI：
--
发表时间：
2011
期刊：
China Water & Wastewater
影响因子：
--
作者：
Du Xu
通讯作者：
Du Xu