安顺市黑臭河道治理措施与成效

Treatment Measures and Effects of Malodorous Rivers in Anshun

摘要:

以西南地区安顺市城区的贯城河及其支流为研究对象,针对河道存在的黑臭问题,系统分析了河道黑臭水体的成因,综合采取控源截污、内源治理、生态修复、活水保质、长制久清等措施对黑臭河段进行了综合治理和生态修复。治理完成后,连续6个月进行定期检测,结果表明:各监测点位氨氮 NH4+ -N 浓度降至8mg / L以下,溶解氧(DO)浓度达到 2mg / L 以上,氧化还原电位(ORP)增至 50mV以上,透明度达到 25cm以上,贯城河及其支流黑臭水体消除,河道水质明显改善。通过完善6项工作制度和8项管理制度,建立了长效管护机制,从根本上恢复和构建了可持续性的河道生态系统。

Abstract:

Taking the Guancheng River and its tributaries in the urban area of Anshun City in Southwest China as the research object, this study analyzes the causes of malodorous water bodies in the rivers systematically, and adopts control measures comprehensively such as pollution source control and interception, endogenous treatment, ecological restoration, water activation and quality maintenance, and long-term management and improvement to comprehensively harness and ecologically restore the malodorous river sections. After the treatment, the consecutive monitoring was conducted monthly for half a year. The results show that the ammonia nitrogen NH_4+-N) concentration at each monitoring point dropped below 8mg / L, the dissolved oxygen (DO) concentration reached above 2mg / L, the oxidation-reduction potential (ORP) increased to above 50mV, and the transparency reached above 25cm . The malodorous water bodies in the Guancheng River and its tributaries were eliminated, and the water quality in river was significantly improved. By improving 6 operating systems and 8 management systems, a long-term management and protection mechanism was established, restoring and constructing a sustainable river ecosystem fundamentally.