城区黑臭水体污染特征研究

Analysis and Research on Pollution Characteristics ofBlack and Odorous Water Bodies in Urban Areas

目的:分析城区黑臭水体在不同污染源下的污染特征。方法:研究选取城区内三条典型河流进行采样分析,通过测定溶解氧、氧化还原电位、铁、锰、氨氮及叶绿素含量等指标,深入探究黑臭水体的污染特征。结果:A河流显示溶解氧和氧化还原电位偏低,氨氮浓度较高,叶绿素含量较低;B河流则呈现更低的溶解氧和氧化还原电位,铁、锰、氨氮浓度显著升高,可能对水生生物造成毒性;D河流同样表现出溶解氧偏低,铁、锰、氨氮浓度较高的特点。结论:生活、工业及水产养殖污染均为城区黑臭水体的主要污染源。

This paper analyzed the pollution characteristics of black and odorous water bodies in urban areas under different pollution sources.Three typical rivers in the urban area were selected for sampling and analysis.By measuring indicators such as dissolved oxygen,redox potential,iron,manganese,ammonia nitrogen,and chlorophyll content,the pollution characteristics of black and odorous water bodies were deeply explored.River A showed lower dissolved oxygen and redox potential,higher ammonia nitrogen concentration,and lower chlorophyll content.B River shows lower dissolved oxygen and redox potential,with significantly increased concentrations of iron,manganese,and ammonia nitrogen,which may cause toxicity to aquatic organisms.D rivers also exhibit low dissolved oxygen and high concentrations of iron,manganese,and ammonia nitrogen.Domestic,industrial,and aquaculture pollution are the main sources of pollution in urban black and odorous water bodies.