江门市黑臭水体水质现状及污染特征分析

摘要

With the malodorous black river of Jiangmen City as a case study, the current situation of water quality, primary pollution sources and pollution characteristic are analyzed.And pollution sources regulation is proposed, by using water quality assessment and pollution sources investigation.The results show that the water quality of Tiansha River and other 5 rivers in Jiangmen City are worse than grade V, sometimes black and foul.Tiansha River is mainly polluted by livestock and poultry farming, needing to be emphasized for governing.The other 5 rivers are polluted by domestic wastewater, livestock and poultry farming, needing to be governed particularly.%以江门市首批进行整治的黑臭水体为研究对象,通过对各河流的现状水质评价及污染源调查,分析江门市黑臭水体的水质现状、主要污染源、污染特征等,提出各河流污染源控制的主要对象.研究结果表明,江门市天沙河等6条河流水质大部分时段都超过地表水环境质量V类标准限值,无法满足河流的水质目标,部分时段达到黑臭水平;其中,天沙河污染源较多,以畜禽养殖污染为主,是本次江门市黑臭水体治理的重点,其他5条河流包括生活污染、畜禽养殖污染等污染源,污染源结构有所差别,应有侧重的进行整治.