常州藻港河黑臭河道治理与生态修复
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摘要
以常州市新桥镇藻港河西支为治理对象,遴选深层微孔层流曝气、微生物强化降解、生态浮岛等技术进行集成,对该黑臭河道进行治理与生态修复。第三方机构水质检测结果表明:该工程经过5个月的调试运行,河道水质状况明显改善,总磷、氨氮和COD的去除率分别达到84. 4%、98. 6%和65. 3%,治理后达到地表水Ⅳ类水质标准。工程实践证明,该集成技术能够有效去除黑臭水体中的有机物、氨氮、总磷等污染物,增加水体透明度和溶解氧。通过建立长效管护机制,可从根本上恢复河流生态系统,进而改善和维护水质。
An integrated system of bottom laminar flow aeration,biological enhanced degradation,and ecological floating islands was used to treat the west branch of Zaogang River in Xinqiao Town,Changzhou. The testing results by the third party showed that the water quality in the river was significantly improved after five-month treatment. The average removal rates of TP,NH_4~+-N,and COD have reached84. 4%,98. 6%,and 65. 3% respectively. The water quality was better than level Ⅳ in Environmental Quality Standards for Surface Water( GB 3838-2002). Practice has proved that this integrated system could effectively remove pollutants such as TP,NH_4~+-N and COD in the black-odorous river,increase water transparency and DO. Through the establishment of long-term protection plan,it could fundamentally restore river ecosystems and improve the water quality.
An integrated system of bottom laminar flow aeration,biological enhanced degradation,and ecological floating islands was used to treat the west branch of Zaogang River in Xinqiao Town,Changzhou. The testing results by the third party showed that the water quality in the river was significantly improved after five-month treatment. The average removal rates of TP,NH_4~+-N,and COD have reached84. 4%,98. 6%,and 65. 3% respectively. The water quality was better than level Ⅳ in Environmental Quality Standards for Surface Water( GB 3838-2002). Practice has proved that this integrated system could effectively remove pollutants such as TP,NH_4~+-N and COD in the black-odorous river,increase water transparency and DO. Through the establishment of long-term protection plan,it could fundamentally restore river ecosystems and improve the water quality.
引文
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[2]钱嫦萍,陈振楼.城市河流黑臭的原因分析及生态危害[J].城市环境,2002,(3):21-23.Qian Changping,Chen Zhenlou.Analyzing reason and ecological compromise of blackening and stink of city rivers[J].Urban Environment,2002,(3):21-23(in Chinese).
[3]邹丛阳,张维佳,李欣华,等.城市河道水质恢复技术及发展趋势[J].环境科学与技术,2007,30(8):99-102.Zou Congyang,Zhang Weijia,Li Xinhua,et al.Remediation technology and development tendency for water quality of urban rivers[J].Environmental Science&Technology,2007,30(8):99-102(in Chinese).
[4]朱敏,王国祥,王建,等.南京玄武湖清淤前后底泥主要污染指标的变化[J].南京师范大学学报:工程技术版,2004,4(2):66-69.Zhu Min,Wang Guoxiang,Wang Jian,et al.Comparative analysis of changes of pollutants in sediment in Nanjing Xuanwu Lake before and after sediment dredging[J].Journal of Nanjing Normal University:Engineering and Technology,2004,4(2):66-69(in Chinese).
[5]卢士强,徐祖信,罗海林,等.上海市主要河流调水方案的水质影响分析[J].河海大学学报:自然科学版,2006,34(1):32-36.Lu Shiqiang,Xu Zuxin,Luo Hailin,et al.Influence of water diversion schemes on water quality of Shanghai River networks[J].Journal of Hohai University:Natural Sciences,2006,34(1):32-36(in Chinese).
[6]武涛,刘彬彬.上海市黑臭河道治理技术应用研究[J].工业安全与环保,2010,36(3):27-29.Wu Tao,Liu Binbin.Application and research of Shanghai black-odor river treatment technologies[J].Industry Safety and Environmental Protection,2010,36(3):27-29(in Chinese).
[7]卢磊,高宝玉,许春华,等.聚合铝基复合絮凝剂用于城市纳污河道废水处理[J].环境科学,2007,28(9):2035-2040.Lu Lei,Gao Baoyu,Xu Chunhua,et al.Municipal wastewater treatment using a composite flocculant made of polyaluminum chloride and polydimethyldiallyammonium chloride[J].Environmental Science,2007,28(9):2035-2040(in Chinese).
[8]陈友岚.武汉地区水厂废水处理研究[D].武汉:华中科技大学,2004.Chen Youlan.Research on Sludge Water Treatment in Waterworks in Wuhan[D].Wuhan:Huazhong University of Science&Technology,2004(in Chinese).
[9]徐续,操家顺.河道曝气技术在苏州地区河流污染治理中的应用[J].水资源保护,2006,22(1):30-33.Xu Xu,Cao Jiashun.Application of river aeration technology in river pollution control of Suzhou area[J].Water Resouces Protection,2006,22(1):30-33(in Chinese).
[10]於建明,吴成明,陈哲,等.宁波市中塘河支流黑臭河道治理与生态修复[J].中国给水排水,2013,29(4):64-67.Yu Jianming,Wu Chengming,Chen Zhe,et al.Improvement and ecological remediation of malodorous river,Zhongtang River Tributary in Ningbo City[J].China Water&Wastewater,2013,29(4):64-67(in Chinese).
[11]黄伯平,杨尚平,李晓慧.新加坡·南京生态科技岛河道生态修复案例[J].给水排水,2016,42(S1):75-78.Huang Boping,Yang Shangping,Li Xiaohui.River ecological restoration case of Singapore·Nanjing Ecological Science and Technology Island[J].Water&Wastewater Engineering,2016,42(S1):75-78(in Chinese).
[12]沙昊雷,章黎笋,陈金媛.常州市白荡浜黑臭水体生态治理与景观修复[J].中国给水排水,2012,28(14):74-78.Sha Haolei,Zhang Lisun,Chen Jinyuan.Ecological treatment and landscape restoration of malodorous water in Changzhou Baidangbang[J].China Water&Wastewater,2012,28(14):74-78(in Chinese).