Notice of Retraction: Water environmental quality analysis of Dawu groundwater site

2010 ◽  
Author(s):  
Liu Ben-hua ◽  
Lv Gao-feng ◽  
Chen Hong-hua
Keyword(s):  
Environmental Quality ◽  
Quality Analysis ◽  
Water Environmental Quality

Water Environment Quality Analysis in the Nearshore Marine District of the Caofeidian

2014 ◽  
Vol 1010-1012 ◽  
pp. 496-498
Author(s):  
Qi Si ◽  
Ming Chang Li
Keyword(s):  
Environmental Quality ◽  
Water Environment ◽  
Marine Water ◽  
Quality Analysis ◽  
Parallel Coordinates ◽  
Environment Quality ◽  
Multiple Pollutants ◽  
Environmental Status ◽  
Water Environmental Quality

In this paper, the parallel coordinates’ method is used for analyzing the marine water environment quality. The environment status could be obtained by this method intuitively. In this paper, the water environment quality in the Caofeidian marine district is analyzed. Multiple pollutants in the multiple years are used. The results show that the water environmental quality in the Caofeidian marine district is acceptable, the environmental status could be obtained by the parallel coordinates’ method visually, which is the main advantageous of this method.

scholarly journals Analysis of Nonpoint Source Pollution and Water Environmental Quality Variation Trends in the Nansi Lake Basin from 2002 to 2012

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Weiliang Wang ◽  
Tiantian Ju ◽  
Wenping Dong ◽  
Xiaohui Liu ◽  
Chuanxi Yang ◽  
...  
Keyword(s):  
Water Pollution ◽  
Economic Development ◽  
Environmental Quality ◽  
Nonpoint Source Pollution ◽  
Nonpoint Source ◽  
Lake Basin ◽  
Class Iii ◽  
Nansi Lake ◽  
Nansi Lake Basin ◽  
Water Environmental Quality

Based on the data analysis of economic development and the water environmental quality from 2002 to 2012 in the Nansi Lake Basin in China, the correlation between economic development and the water environmental quality was researched. Analysis shows that the GDP of the Nansi Lake Basin had an average annual growth of 7.3% in 2012, and the COD andCODMnhad the average annual decrease of 7.69% and 6.79%, respectively, compared to 2002. Basin water environmental quality overall improved, reaching Class III of the “Environmental quality standards for surface water (GB3838-2002).” The pollution of the water environment was analyzed from three aspects: agricultural fertilizers and pesticides, livestock, and aquaculture. Results indicated that the water pollution of the Nansi Lake Basin mainly came from nonpoint source pollution, accounting for more than 80% of the overall pollution. The contributions of both agricultural fertilizers and pesticides account for more than 85% of the overall nonpoint source, followed by livestock and aquaculture. According to the water pollution characteristics of the Nansi Lake Basin, the basin pollution treatment strategy and prevention and treatment system were dissected, to solve the pollution problem of the Nansi Lake Basin.

Water Environmental Quality Assessment and Protection Strategies of the Xinlicheng Reservoir, China

2014 ◽  
Vol 501-504 ◽  
pp. 1863-1867
Author(s):  
Xian Fu Zhang ◽  
Chang Lai Xiao ◽  
Yong Qing Li ◽  
Ding Feng Song
Keyword(s):  
Water Quality ◽  
Environmental Quality ◽  
Pollution Index ◽  
Longitudinal Axis ◽  
Ammonia Nitrogen ◽  
Reservoir Water ◽  
Index Method ◽  
Nutrient Emissions ◽  
Protection Strategies ◽  
Water Environmental Quality

Based on the monthly monitoring data in the Xinlicheng Reservoir from 2008 to 2011 in 3 zones (fluvial, transitional and lacustrine), 6 water quality variables were selected as evaluation indicators to evaluate the water environmental quality by improved Nemerow comprehensive pollution index method. The results indicated the reservoir water quality reached classII or III during the study period and met the requirements of centralized drinking water. No significant differences (P > 0.05) for Nemerow indexes were detected among seasons and zones. However, that Nemerow indexes slightly decreased along the longitudinal axis of reservoir showed the water quality in the lacustrine zone was better than that in the fluvial zone, which implied the reservoir ecological system had self-purification function. The improved Nemerow index method based on weight is objective, and the pollution factor with maximum weight is total phosphorus (TP) which is followed by ammonia nitrogen (NH3-N) and total nitrogen (TN). Water quality protection strategies should focus on controlling nutrient emissions and prevent eutrophication, including exogenous governance and endogenous control.

Application of Circulator Clarifier + Gravity Valve-Less Filtrate in the Disposal of Coal Mine Wastewater

2012 ◽  
Vol 518-523 ◽  
pp. 2366-2369
Author(s):  
Qun Ying Zhao ◽  
Yu Shu Wang ◽  
Xiao Li Fan
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Engineering Design ◽  
Environmental Quality ◽  
Coal Mine ◽  
Sewage Treatment ◽  
Quality Standard ◽  
Environmental Quality Standard ◽  
Mine Wastewater ◽  
Water Environmental Quality

The characteristic of coal mine wastewater was introduced. Engineering design and practical run of circulator clarifier +gravity valve-less were summed up for treating wastewater of coal mine. Practice indicated that the process was steady and reliable, the effluent satisfied water quality Ⅲ standard of Surface Water Environmental Quality Standard (GB3838-2002),and there was remarkable economic results during the process of sewage treatment.

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