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引用本文:张云慧,朱伟,董婵.利用生物膜强化表流湿地处理农村生活污水的试验.湖泊科学,2012,24(6):838-842. DOI:10.18307/2012.0605
ZHANG Yunhui,ZHU Wei,DONG Chan.Treatment for rural domestic sewage with biofilm aggrandizement in surface flow constructed wetland. J. Lake Sci.2012,24(6):838-842. DOI:10.18307/2012.0605
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利用生物膜强化表流湿地处理农村生活污水的试验
张云慧1, 朱伟1,2, 董婵2
1.河海大学环境学院, 南京 210098;2.河海大学水资源高效利用与工程安全国家工程研究中心, 南京 210098
摘要:
针对农村生活污水难以集中处理的问题,提出了采用生物膜强化表流湿地工艺就地进行农村生活污水处理的方法,并对其进行试验研究.结果表明:在表流湿地表面设置生物膜载体后,系统的水质净化能力提高,处理负荷较高的条件下(CODCr:657.27 mg/L、TN:26.27 mg/L、TP:8.66 mg/L和SS:276 mg/L),处理效果显著提高.在效果明显的试验组中,生物膜设置后系统对TN、TP、CODCr的去除率分别提高了21.64%、16.24%、19.12%.另外,通过对系统中微生物的检测发现,生物膜载体的引入对湿地系统本身影响不大,系统水质净化能力的提高主要源于载体上微生物的增加.该方法在未增加系统占地面积的情况下提高了水质净化能力,为解决农村生活污水处理难的问题提供了新的思路.
关键词:  表流湿地  生物膜  农村生活污水  功能强化
DOI:10.18307/2012.0605
分类号:
基金项目:国家重点基础研究发展计划"973"项目(2012CB719804);江苏省重点基金项目(SBK201150024);国家自然科学基金项目(50979028)联合资助
Treatment for rural domestic sewage with biofilm aggrandizement in surface flow constructed wetland
ZHANG Yunhui1, ZHU Wei1,2, DONG Chan2
1.College of Environment, Hohai University, Nanjing 210098, P. R. China;2.National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, P. R. China
Abstract:
Aiming to the problem of the difficult central treatment on rural domestic sewage, a new approach of biofilm aggrandizement on the treatment of rural domestic sewage on the spots in surface flow constructed wetland was raised and corresponding experiments were carried out. Results showed that water purification ability improved obviously after setting the biofilm carrier in surface flow constructed wetland, especially under higher pollution load (CODCr:657.27 mg/L, TN:26.27 mg/L, TP:8.66 mg/L, SS:276 mg/L). The removal rates of TN, TP and CODCr were increased by 21.64%, 16.24% and 19.12%, respectively. In addition, the setting of the biofilm carrier had little impacts on the wetland system itself through the detection of microorganisms in wetland. The improvement of the water purification ability mainly resulted from the increase of the microorganism on the biomass carrier. This new method could improve the wetland efficacy without expanding wetland areas, which provides a promising solution for rural domestic sewage.
Key words:  Surface flow constructed wetland  biofilm  rural domestic sewage  enriched purification function
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