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Groundwater was monitored to investigate its hydrochemical variation and possible influencing factors from April, 2007 to May, 2009 at the inlet (D1) and outlet (S2) of Qingmuguan subterranean river in Chongqing, China. The response of the subterranean river discharge to rainfall events was very fast and dramatic, as the water level rising suddenly and dropping sharply with rainfall amount in the...
Non-point source pollution is one of the major problems caused by agricultural activities especially from planting cultivation. This paper describes the application of the Soil and Water Assessment Tool (SWAT) model in agricultural non-point source pollution of the Laohahe River watershed, located in northeast China. This initial hydrologic modeling analysis will facilitate future applications of...
Since the 1980s, Chinese water environment has got worse and worse, and water pollution extended from local pollution to total watershed pollution. From the Ninth Five-Year Plan, the government recognized the seriousness of water pollution, and put the core of the prevention and cure of water pollution in Three Rivers and Three Lakes, e.i. Huaihe River, Haihe River, Liaohe River, Taihu Lake, Chaohu...
One of China largest river, Songhua River was polluted due to the explosion at a PetroChina factory in Jilin province in 2005. A full scale test was carried out to investigate the removal of nitrobenzene in the raw water from polluted Songhua River. The removal and control effects of nitrobenzene by using Powered Activated Carbon (PAC) absorption and Granular Activated Carbon (GAC) filtration as emergent...
This study investigated phosphorus removal in the rivers inputting into Lake Taihu, Jiangsu Province. Ecological community properties of aquatic plants and algae in those rivers were surveyed with focus on diversity and density. The results showed that total phosphorus (TP) concentrations decreased along the runoff in the rivers, and the river with balanced algae community and integrated water plants...
The water quality in the urban rivers of Chaohu City, Anhui Province is very poor owing to untreated wastewater disposal and stagnant flow in the rivers. In the present study MIKE 11 model has been applied in evaluating the efficiency of the water diversion project in Chaohu City. The results indicate that with the existing hydraulic structures only part of the urban rivers can be flushed with the...
Eutrophication is a worldwide pollution problem, when the point source pollution is efficiently controlled, pollution load from non-point source has the increasing proportion in the total load. Xiangxi River is selected as the research demonstration area to conduct preliminary study on non-point source pollution for frequent water bloom. Non-point source pollution factors are analyzed in Xiangxi River...
The occurrence of sudden water pollution accident threatens water quality as well as human health and social stabilization. A typical water pollution accident emergency warning system for Chu River downstream basin was developed to aid responsible authorities, water suppliers and emergency responders making impactful rescue measures at the first time in order to reduce influence and loss of the accident...
Environmental capacity of the water basin was often used as the basis of total amount control of pollutants, which was concerned by environmental workers for a long time. However, with the governance of the on point source pollution, the non-point source (NPS) pollution drew people's close attention day by day. This article was selected to the main non-point source pollution of Dadu River of Luding...
The main purpose of the research is to study the influence on shallow ground water by heavy metal in polluted river. In the lab-scale experiment polluted rivers were simulated by domestic sewage, and three kinds of natural sand were chosen as infiltration medium, it was found that Cr(VI) penetrated on the 13th day and then had a removal ratio of 77-99% in coarse sand, over 91% and 96% in two kinds...
This study collecting the monitoring data for surface water quality and economic development data of Tianjin, and analyzed the water quality according to national water environmental quality standards between 1998 and 2008, it is found that Hai River and other main rivers were polluted badly except Yuqiao Reservior which is only drinking source water body. In the past two decade, economy of Tianjin...
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