Research on the process-based risk evaluation method of groundwater pollution for contaminated site

2015 ◽  
Vol 16 (1) ◽  
pp. 150-162 ◽  
Author(s):  
Liping Bai ◽  
Yeyao Wang ◽  
Youya Zhou ◽  
Li Liu ◽  
Zengguang Yan ◽  
...  
Keyword(s):  
Groundwater Pollution ◽  
Risk Evaluation ◽  
Evaluation Method ◽  
Transport Model ◽  
Groundwater Vulnerability ◽  
Contaminated Sites ◽  
Contaminated Site ◽  
Disposal Site ◽  
Universal Method ◽  
Pollution Risk

A universal method to evaluate groundwater pollution risk with the site scale has not been established. The groundwater pollution risk is commonly evaluated by overlaying the results of groundwater vulnerability and pollution sources, but this method is inapplicable for contaminated sites. Considering the current supervision demands of groundwater pollution in China, this paper suggests a risk evaluation method for contaminated sites. The present and forecasted groundwater pollutant concentrations and the variation trend of groundwater quality were used to get the risk classes of groundwater pollution. Chromium is one of the most common groundwater contaminants found at industrially contaminated sites. A chromium residue disposal site in Baotou, China was selected as the study area. The groundwater flow model and solute transport model were constructed by MODFLOW and MT3DMS. Based on the simulation results of the numerical model, the groundwater pollution risk of the contaminated site was divided into four classes, and the regulation measures of groundwater pollution were suggested. This study could provide guidance for the environmental supervision and management of contaminated sites.

Groundwater Pollution Risk Assessment in the Quanzhou Area

2013 ◽  
Vol 807-809 ◽  
pp. 1469-1472
Author(s):  
Li Tang Hu ◽  
Tong Gao ◽  
Jing Rui Wang
Keyword(s):  
Groundwater Pollution ◽  
Evaluation Method ◽  
Risk Index ◽  
Expert Evaluation ◽  
Pollution Load ◽  
Drastic Model ◽  
Multi Index ◽  
Pollution Risk ◽  
Index Evaluation ◽  
Expert Evaluation Method

Groundwater pollution under the intense of human activities in the Quanzhou coastal area strongly threatens the supply safety of groundwater sources. Based on hydrogeological conditions and the pollution load in this field, the multi-index evaluation method of pollution sources and improved DRASTIC model were employed to assess groundwater pollution risk. The rating and weights of each important factor were determined by expert evaluation method and three-level groundwater pollution risk index were obtained using ARCGIS software. The results show that groundwater pollution risk at the industrial-intensive areas are dominant. So it is necessary for government to control the emmision of pollutant from inducstry in the Quanzhou area.

scholarly journals ANALISIS TINGKAT KERENTANAN PENCEMARAN AIR TANAH PADA WILAYAH PENAMBANGAN DAN PENGOLAHAN EMAS RAKYAT DESA PANCURENDANG, KABUPATEN BANYUMAS

2019 ◽  
Vol 13 (2) ◽  
pp. 159
Author(s):  
Eni Muryani ◽  
Dayu Aviana Rahmah ◽  
Dian Hudawan Santoso
Keyword(s):  
Groundwater Pollution ◽  
Gold Mining ◽  
Sampling Method ◽  
Evaluation Method ◽  
Groundwater Vulnerability ◽  
Survey Method ◽  
Analysis Method ◽  
Surrounding Environment ◽  
Pollutant Sources ◽  
Aquifer Type

The people's gold mining and processing activities have an impact on the surrounding environment. Some residents immediately dispose of waste from gold processing into the environment. Therefore, analysis of the level of vulnerability of pollution is needed to determine the size of the level of difficulty and ease of contaminated substances to influence water quality, both surface water and groundwater. The purpose of this study was to analyze the level of vulnerability of groundwater pollution around the study area. The method used in this research is survey method and field mapping, sampling method: purposive sampling, laboratory analysis method, mathematical method, and descriptive evaluation method. The calculation to determine the level of vulnerability of pollution is the DRASTIC method for groundwater vulnerability with 7 parameters, namely groundwater depth, rainfall, aquifer type, soil texture, slope, slope, unsaturated zone type, and hydraulic conductivity. Based on the results of the study it was known that the study area had 2 classifications of the level of vulnerability of groundwater pollution, namely the moderate and high classification. Areas that are located in the direction of groundwater flow and are lower than pollutant sources will potentially be more polluted.   Keywords : DRASTIC, Pollution, Groundwater, Gold Mine

Research on the evaluation method of groundwater quantity and pollution vulnerability

2013 ◽  
Vol 13 (2) ◽  
pp. 368-375 ◽  
Author(s):  
Liping Bai ◽  
Yeyao Wang ◽  
Huina Fang ◽  
Li Liu ◽  
Youya Zhou ◽  
...  
Keyword(s):  
Groundwater Pollution ◽  
Evaluation Method ◽  
Groundwater Resources ◽  
Ground Surface ◽  
Groundwater Vulnerability ◽  
Plain Area ◽  
Vulnerability Evaluation ◽  
Groundwater Recharge Rate ◽  
Groundwater Quantity ◽  
And Control

Current research on groundwater vulnerability is aimed mainly at groundwater pollution vulnerability (GPV), and the vulnerability of groundwater quantity is seldom considered. It is important to carry out the groundwater vulnerability evaluation for the management of groundwater resources. This paper presents evaluation models and methods for assessing groundwater quantity and pollution vulnerability. The models and methods were used to evaluate the groundwater vulnerability in the plain area of Baotou, Inner Mongolia, China. The groundwater quantity vulnerability was assessed by computing the groundwater recharge rate, and the GPV was evaluated by simulating the migration time for pollutants traveling from ground surface to the aquifer. The research results could provide scientific support for the management of regional groundwater resources, prevention and control of groundwater pollution.

The Discrimination and Disposal of the Cover of Contaminated Sites

2012 ◽  
Vol 500 ◽  
pp. 278-282
Author(s):  
Xiao Nan Sun ◽  
An Ping Liu ◽  
Xiao Song Sun
Keyword(s):  
Risk Assessment ◽  
Contaminated Soil ◽  
Metastatic Spread ◽  
Contaminated Sites ◽  
Contaminated Site ◽  
Risk Category ◽  
Pollution Risk ◽  
Contamination Risk

This paper discussed the discrimination and disposal of pollution in the cover of contaminated sites. A discriminating and disposal solution for the cover of contaminated sites aim at the key situation that there is much pollution risk in the cover of contaminated site as well as the soil owing to industry enterprises’ transfer. Through sampling analysis and comprehensive risk assessment, we obtained the risk of contamination and its distribution in the cover of contaminated sites, then cleaned and transported them according to the risk category. The results of experiments show that this solution can effectively control the contamination risk during the disposal progress, and avoid the metastatic spread of the contaminated soil.

Risk Evaluation for Shipwreck Environmental Pollution Based on AHP- Fuzzy Comprehensive Evaluation

2011 ◽  
Vol 356-360 ◽  
pp. 2228-2232
Author(s):  
Hui Xing ◽  
Shu Lin Duan ◽  
Hong Liang Yu ◽  
Qin An Liu
Keyword(s):  
Environmental Pollution ◽  
Systems Engineering ◽  
Risk Evaluation ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Scientific Management ◽  
Pollution Risk ◽  
Risk Evaluation Model

o prevent further environmental pollution hazards after the accident of vessel sinking, shipwreck environmental pollution risk evaluation model was established based on analytic hierarchy process(AHP)-fuzzy comprehensive evaluation method. Based on systems engineering ideas, risk system consisted of shipwreck-cargo-shipwreck area-environment was established. Through statistical analysis of historical accidents and summary of expert experience, shipwreck risk evaluation indices system and the classification standards for indices were determined and the weight of each index was determined. The shipwreck environmental pollution risk evaluation model effectively improved our country’s shipwreck risk assessment mechanisms, and scientific management of shipwreck by maritime safety administration were achieved.

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