Comprehensive treatment of urban black and odorous water bodies in southern cities: a case study of Zhupai River e section (Nakao River) in Nanning City
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摘要: 竹排江e段(那考河)是南宁市典型的城市黑臭水体,亟需进行治理。分析了那考河水质污染特征,识别其主要污染来源;针对污水和初期雨水入河、河道底泥淤积、生态基流匮乏、河道水生态系统严重退化等问题,提出采取控源截污、内源清理、活水保质、生态修复措施进行综合整治,并因地制宜地开发了流域适用的“净水梯田”生态护岸技术,对溢流或径流雨水进行多级净化;采用政府和社会资本合作(PPP)+按效付费的建设模式,治理后那考河水质稳步改善且达到GB 3838—2002《地表水环境质量标准》Ⅳ类水质标准,生态效益显著,水体周边人居与商业环境明显改善。Abstract: Zhupai River e section (Nakao River Basin) was a typical urban black and odorous water body in Nanning City which was in dire need of governance. The water pollution characteristics of Nakao River were analyzed and the main sources of pollution were recognized. In view of the problems such as the inflow of sewage and initial rainwater into the river, the siltation of river sediment, the lack of ecological base flow and the serious degradation of river water ecosystem, the measures of controlling sources and cutting off pollution, cleaning up internal sources, maintaining the quality of living water and ecological restoration for comprehensive treatment of Nakao River were put forward. The ecological revetment technology of “water purification terraces” suitable for the basin was developed according to the local conditions, so as to carry out multi-stage purification of overflow or runoff rainwater. The construction model of government and social capital cooperation (PPP) + pay-for-performance was adopted. After treatment, the river water quality improved steadily and achieved Grade Ⅳ of Surface Water Environmental Quality Standards(GB 3838-2002), the ecological benefit was remarkable, and the surrounding residential and commercial water environment improved significantly.
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[1] 中央政府门户网. 国务院印发《水污染防治行动计划》[A/OL]. (2015-4-16)[2020-04-30]. http://www.gov.cn/xinwen/2015-04/16/content_2847709.htm. [2] 环球网. 环保部:水十条中治理城镇黑臭水体难度最大[EB/OL]. (2015-04-18)[2020-04-30]. https://china.huanqiu.com/article/9CaKrnJK6sv. [3] 住房和城乡建设部. 住房和城乡建设部环境保护部关于印发城市黑臭水体整治工作指南的通知[A/OL]. (2015-08-28)[2020-04-30]. http://www.mohurd.gov.cn/wjfb/201509/t20150911_224828.html. [4] 张悦, 唐建国. 城市黑臭水体整治:排水口、管道及排水口治理技术指南[M]. 北京: 中国建筑工业出版社, 2012. [5] 朱韻洁, 李国文, 张列宇, 等. 黑臭水体治理思路与技术措施[J]. 环境工程技术学报, 2018,8(5):495-501.ZHU Y J, LI G W, ZHANG L Y, et al. Treatment ideas and technical measures of black and stinky water bodies[J]. Journal of Environmental Engineering Technology, 2018,8(5):495-501. [6] 李喆, 赵乐军, 朱慧芳, 等. 我国城镇污水处理厂建设运行概况及存在问题分析[J]. 给水排水, 2018,54(4):52-57.LI Z, ZHAO L J, ZHU H F, et al. Analysis of construction and operation status and existing problems of municipal wastewater treatment plants in China[J]. Water & Wastewater Engineering, 2018,54(4):52-57. [7] 樊玲凤, 胡家忠, 欧亮. 城市污水处理厂进水浓度偏低原因分析及对策研究[J]. 环境科学与管理, 2016,41(3):132-135.FAN L F, HU J Z, OU L. Research on low inlet concentration of urban sewage treatment plant and countermeasures[J]. Environmental Science and Management, 2016,41(3):132-135. [8] 唐建国, 张悦, 梅晓洁. 城镇排水系统提质增效的方法与措施[J]. 给水排水, 2019,55(4):30-38.TANG J G, ZHANG Y, MEI X J. Strategies and methods for improving the quality and efficiency of the urban drainage system[J]. Water & Wastewater Engineering, 2019,55(4):30-38. [9] 尹文静. 城镇污水处理厂进水浓度偏低原因及对策[J]. 江西化工, 2019(3):23-25. [10] 王家卓, 胡应均, 张春洋, 等. 对我国合流制排水系统及其溢流污染控制的思考[J]. 环境保护, 2018,46(17):14-19.WANG J Z, HU Y J, ZHANG C Y, et al. Some perspectives on combined sewer system and its overflow control in China[J]. Environmental Protection, 2018,46(17):14-19. [11] 孙永利. 城镇污水处理提质增效的内涵与思路[J]. 中国给水排水, 2020,36(2):1-6.SUN Y L. Connotation and way of quality and efficiency improvement of municipal wastewater treatment[J]. China Water & Wastewater, 2020,36(2):1-6. [12] 李斌, 柏杨巍, 刘丹妮, 等. 全国地级及以上城市建成区黑臭水体的分布、存在问题及对策建议[J]. 环境工程学报, 2019,13(3):511-518.LI B, BAI Y W, LIU D N, et al. Nationwide distribution,problems,countermeasure proposals of black and odorous water bodies in built-up area of cities at prefecture level or above in China[J]. Chinese Journal of Environmental Engineering, 2019,13(3):511-518. [13] 王帅, 高红杰, 宋永会, 等. 潮汐流人工湿地净化城市河水中试研究[J]. 环境工程技术学报, 2013,3(4):298-304.WANG S, GAO H J, SONG Y H, et al. Pilot study on purification of urban river water by using tidal flow constructed wetland[J]. Journal of Environmental Engineering Technology, 2013,3(4):298-304. [14] 颜秉斐, 肖书虎, 廖纯刚, 等. 潜流人工湿地长效运行脱氮研究进展[J]. 环境工程技术学报, 2019,9(3):239-244.YAN B F, XIAO S H, LIAO C G, et al. Research progress of long-term nitrogen removal in subsurface flow constructed wetlands[J]. Journal of Environmental Engineering Technology, 2019,9(3):239-244. [15] 周彦龙, 刘燕. 水文比拟法在计算河川径流量时的修正[J]. 水利规划与设计, 2017(5):44-46.
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