Enhanced floating treatment wetland (EFTW) with biofilm carriers is a new ecological restoration technology developed in recent years. In this study, three kinds of biofilm carriers were added into traditional floating treatment wetland (FTW). Their purifying effects on high phosphorus-concentration aquaculture water and aquaculture pond water in Shanghai were examined. Results elucidated that in high phosphorus-concentration (2.36-3.42 mg/L) aquaculture water, the average removal rates of TN, TP and COD were 34.9%, 12.2% and 26.1%, respectively, with no significant difference among the three treatment groups; in aquaculture pond water in Shanghai with average polluted level, EFTW with elastic packing had the best ability of purifying TN and TP with the removal rate reaching 83.9% and 69.3%, respectively, followed by EFTW with combined packing and EFTW with bio-cord packing. The removal rates of COD and NH4+-N by the three treatment systems all exceeded 70%. In conclusion, EFTW with elastic packing can be applied to the ecological restoration project in freshwater aquaculture ponds in Shanghai.
Key words
aquaculture water /
enhanced ecological floating bed;artificial packing;stereo-elastic packing /
bio-cord packing /
ecological restoration
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References
[1] 赵琳君.复合式生物滤池和人工湿地对淡水鱼类养殖废水处理效果的研究.杭州: 浙江大学,2017.
[2] 张 劲,黄 薇,桑连海.浮床植物水质净化能力及其影响因素研究.raybet体育在线
院报, 2011, 28(12): 39-42.
[3] 黄 薇,张 劲,桑连海.生物浮岛技术的研发历程及在水体生态修复中的应用.raybet体育在线
院报,2011,28(10): 37-42.
[4] 聂玉华.微曝气强化生态浮床对污水中氮元素的去除效果研究.成都:西南交通大学,2015.
[5] 戴栋超,黄廷林,王 震,等.生态组合技术净化景观水体实验研究.西安建筑科技大学学报(自然科学版),2006,38(6):786-789.
[6] 汪松美,周晓红,储金宇,等.空心菜浮床+仿生植物系统对污染物去除效果.环境科学与技术,2013,36(3):78-82.
[7] 张毅敏,高月香,吴小敏,等.复合立体生物浮床技术对微污染水体氮磷的去除效果.生态与农村环境学报,2010, 26(增刊1):24-29.
[8] 马 强,高明瑜,谭 伟,等.新型生态浮岛在改善水质中的作用及生物膜载体微生物特征研究.环境科学,2011,32(6): 1596-1601.
[9] 徐功娣,张增胜,韩丽媛,等.强化生态浮床与普通浮床对污染物净化效果对比研究.水处理技术,2010,36(4): 93-96.
[10] 魏瑞霞,武会强,张锦瑞,等.植物浮床-微生物对污染水体的修复作用.生态环境学报,2009,18(1):68-74.
[11] ZHAO Feng-liang, XI Shu, YANG Xiao-e, et al. Purifying Eutrophic River Waters with Integrated Floating Island Systems. Ecological Engineering, 2012, 40: 53-60.
[12] CHEN Chong-jun, ZHANG Rui, CHEN Liang-wang, et al. Removal of Nitrogen from Wastewater with Perennial Ryegrass/Artificial Aquatic Mats Biofilm Combined System. Journal of Environmental Sciences, 2013, 25(4): 670-676.
[13] ZHANG Ling-ling, ZHAO Jing, CUI Na-xin, et al. Enhancing the Water Purification Efficiency of a Floating Treatment Wetland Using a Biofilm Carrier. Environmental Science and Pollution Research, 2016, 23(8): 7437-7443.
[14] CAO Wen-ping, ZHANG Yan-qiu.Removal of Nitrogen (N) from Hypereutrophic Waters by Ecological Floating Beds (EFBs) with Various Substrates. Ecological Engineering, 2014, 62: 148-152.
[15] IJAZ A, SHABIR G, KHAN Q M, et al. Enhanced Remediation of Sewage Effluent by Endophyte-assisted Floating Treatment Wetlands. Ecological Engineering, 2015, 84: 58-66.
[16] 陈亚男.几种填料生物膜特性与挂膜参数优化研究. 杭州:浙江大学, 2012.
[17] 杨凤娟.不同工艺生态浮床技术对污染水体的净化效果、机制及示范研究.广州:暨南大学, 2011.
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