排淡河底泥污染调查研究及治理对策

Investigation and Study of Drainage River Sediment Pollution and Treatment Countermeasures

在排淡河沿岸截污工程未实施前,大量未经处理或只经简单处理的废水直接排入排淡河,污染物质不断沉降吸附于底泥中,构成内源性污染,在一定的物理化学及环境条件下,营养盐从底泥中释放出来重新进入水中,影响排淡河水体整治成效。底泥污染是造成河流水质下降甚至形成黑臭现象的主要因素之一,因此开展排淡河底泥污染调查研究工作十分必要。本文在底泥污染物实际监测的基础上,分析排淡河底泥特征及污染程度,并提出底泥污染治理对策及建议。

In the drainage river interception project before the implementation, a large number of untreated or only after simple treatment of wastewater directly into drainage river, pollutants subsidence adsorption in the sediment, constitute endogenous pollution, certain physical and chemical and environmental conditions, nutrient salt released from the sediment and back into the water, affect the effect of drainage water body regulation. Therefore, the sediment pollution is one of the main factors that cause the decline of the river water quality and even the formation of black odor phenomenon, so it is very necessary to carry out the investigation and research work of the drainage of the river sediment pollution. Based on the actual monitoring of the sediment pollutants, the characteristics of the sediment and the degree of the pollution of the sediment pollution are analyzed.