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THE INFLUENCE OF WETLAND PLANTS ON PURIFICATION ABILITIES OF ECOFILTER ON URBAN SEWAGE AND IT’S MICROBIAL COMMUNITY STRUCTURE
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摘要: 生态滤池处理效果受到许多因素影响，不同植物类型导致生态滤池净化效果有明显差异。为提高生态滤池在贵州省农村适用性，研究了生态滤池中3种本地湿地植物（风车草、美人蕉、菖蒲）在不同配置条件下对生活污水中主要污染物包括COD、NH3-N、TN、TP的去除效果，通过比较不同植物配置下主要污染物的去除率，筛选出生态滤池技术在贵州省可以达到最佳污水净化效果的植物配置。结果表明：菖蒲冬季耐寒性好，其对COD、NH3-N及TP的去除效果最佳，去除率分别可达88%、92%以及47%；风车草与菖蒲组合TN去除能力最佳，可达49%。滤池内存在的主要微生物群落组成类似，为Proteobacteria（变形菌门）、Chloroflexi（绿弯菌门）、Acidobacteria（酸杆菌门）为主，硝化细菌群落多样性较低，以氨氧化细菌为主；反硝化细菌种类较多，存在部分好氧反硝化细菌。Abstract: The purification abilities of ecofilter are affected by many factors. Different species of wetland plants may cause different purification abilities. For the improvement of applicability of ecofilter in Guizhou, we studied the purification abilities of main contaminants (COD, NH3-N,TN and TP) in ecofilter with three wetland plants in Guizhou (Canna indica L.,Cyperus alternifolius,Acorus calamus L.). Through a comparison of the removal efficiencies of main contaminants we selected the optimal plants combination that could achieve the best purification ability of ecofilter in Guizhou. The result showed that: The ecofilter planted with Canna indica L. achieved the best purification abilities of COD, NH3-N and TP, the removal efficiencies were up to 88% and 92% and 47%. The ecofilter planted with Canna indica L. and Cyperus alternifolius achieved the best purification ability of TN with the highest removal efficiency of 49%. The microbial community structures in different ecofilters were very similar. The main components were Proteobacteria, Chloroflexi and Acidobacteria. The biological diversity of nitrobacteria was low, mainly ammonia oxidizing bacteria. The biological diversity of denitrifying bacteria was high. The aerobiotic denitrifying bacteria was also detected.
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Key words:
- plant selection /
- ecofilter /
- purification ability /
- microbial community structure
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王庆安,黄时达,孙铁珩,等. 湿地植物光合作用向水体供养能力的试验研究[J]. 生态学杂志,2000,19(5):45-51. 刘春常,安树青,夏汉平,等.几种植物在生长过程中对人工湿地污水处理效果的影响[J].生态环境,2007,16(3):860-865. 李龙山,倪细炉,李志刚,等. 5种湿地植物对生活污水净化效果研究[J].西北植物学报,2013,33(11):2292-2300. 白晓龙,杨春和,顾卫兵,等.不同植物人工湿地净化模拟生活污水效果[J].江苏农业科学,2014,42(4):326-328. 袁果,赵刚,洪江,等.贵州野生水生植物的引种研究及评价[J].贵州科学,2010,28(3):34-38. 国家环境保护总局. 水和废水监测分析方法编委会.水和废水监测分析方法[M]. 4版.中国环境科学出版社,2002. KAYSER K,KUNST S.Processes in vertical-flow reed beds-nitrification,oxygen transfer and soil clogging[J].Water Science & Technology,2005,51(9):177-184. 袁东海,任全进,高士祥,等.几种湿地植物净化生活污水COD、总氮效果比较[J].应用生态学报,2004,15(12):2337-2341. 朱世殊.不同季节条件下植物多样性配置对人工湿地功能的影响研究[D]. 哈尔滨:哈尔滨工业大学,2015. 刘文杰,许兴原,何欢,等.4种湿地植物对人工湿地净化生活污水的影响比较[J].环境工程学报,2016,10(11):6313-6319. 苏小东,李艳,原金海,等,不同水生植物对水体中氮磷吸收去除效果的试验[J].净水技术,2014,33(2):48-51. 赵永军,田云飞,黄德英,等.四种不同植物湿地对不同C/N比生活污水的净化效果与季节动态[J].环境科学学报,2016,36(1):193-200. 卢少勇,金相灿,余刚,等.人工湿地的磷去除机理[J].生态环境,2006,15(2):391-396. 潘继花,何岩,邓伟,等.湿地对水中磷素净化作用的研究进展[J].生态环境,2004,31(1):102-104. 蒋旭瑶,吉喜燕,黄德英,等.不同植物类型复合垂直人工湿地根系微生物群落结构的研究[J].农业环境科学学报,2019,38(1):176-183. 王青璐,彭明春,赵安娜,等.人工湿地中影响微生物空间分布因素的探讨[J].环境科学导刊,2009,28(2):1-3. HEALY M G,RODGERSM,MULQUEEN J.Treatmentof dairy wastewater using constructed wetlands and intermittent sand filters[J]. Bioresource Technology,2007,98(12):2267-2281. AKRATOS C S,TSIHRINTZIS V A.Effect of temperature HRT,vegetation and porous media on removal efficiency of pilot-scale horizontal subsurface flow constructed wetlands[J].Ecological Engineering,2007,29(2):173-191. VYMAZAL J.Constructed wetlands for wastewater treatment[J].Water,2010,2(3):530-549. -
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