Rehabilitation of waste rock piles: Impact of acid drainage on potential toxicity by trace elements in plants and soil

2021 ◽  
Vol 280 ◽  
pp. 111848
Author(s):  
Paula Madejón ◽  
David Caro-Moreno ◽  
Carmen M. Navarro-Fernández ◽  
Sabina Rossini-Oliva ◽  
Teodoro Marañón
Keyword(s):  
Trace Elements ◽  
Waste Rock ◽  
Potential Toxicity ◽  
Acid Drainage ◽  
Waste Rock Piles

Health Risk of some Trace Elements in the Water of the Subsidence Pool in Huainan

2011 ◽  
Vol 347-353 ◽  
pp. 2021-2027 ◽  
Author(s):  
Xing Ming Wang ◽  
Zhong Bing Dong ◽  
Gui Jiang Liu ◽  
Jing Liang Mei ◽  
Jie Yao
Keyword(s):  
Trace Elements ◽  
Water Environment ◽  
Waste Rock ◽  
Coal Waste ◽  
Environment Quality ◽  
Noncarcinogenic Risk ◽  
Local Residents ◽  
The Mean ◽  
Waste Rock Piles ◽  
Contamination Levels

Samples of water were collected from the subsidence pools around the coal waste rock piles and some toxic trace elements were determined. The results conclused as the mean concentrations of As, Zn and Pb ranged from 4.71E-03 to 1.78E-02, 9.22E-03 to 2.13E-02, 1.69E-03 to 5.43E-03, respectively, which were lower than the first level of surface water environment quality standards established in China. The mean concentrations of Cd and Cu ranged from 3.30E-04 to 1.25E-03, 1.04E-02 to1.85E-02, respectively, which were within the range of the second level. As the HQs of As, Zn, Pb, Cd, Cu were less than 1, suggesting minimal noncarcinogenic risk to human health. Only As was evaluated with potential carcinogenic risks of 3.17E-04 and 2.02E-04 (>10-4) in the water of subsidence pools around Panyi and Guqiao coal waste rock piles via oral consumption, indicating that As had potential adverse effects on local residents in these two sites. This study is to investigate the contamination levels of trace elements and to estimate the risk to health effects in the water of the subsidence pools in Huainan.

The influence of vegetation cover on evapotranspiration atop waste rock piles, Elk Valley, British Columbia

2019 ◽  
Vol 33 (20) ◽  
pp. 2594-2606 ◽  
Author(s):  
Erin M. Nicholls ◽  
Gordon B. Drewitt ◽  
Stephanie Fraser ◽  
Sean K. Carey
Keyword(s):  
British Columbia ◽  
Vegetation Cover ◽  
Waste Rock ◽  
Waste Rock Piles

NUMERICAL SIMULATIONS OF LONG TERM UNSATURATED FLOW AND ACID MINE DRAINAGE AT WASTE ROCK PILES

2006 ◽  
Vol 2006 (2) ◽  
pp. 582-597 ◽  
Author(s):  
Omar Fala ◽  
John Molson ◽  
Michel Aubertin ◽  
Bruno Bussière ◽  
Robert P. Chapuis
Keyword(s):  
Acid Mine Drainage ◽  
Numerical Simulations ◽  
Unsaturated Flow ◽  
Mine Drainage ◽  
Waste Rock ◽  
Acid Mine ◽  
Waste Rock Piles

Remedial Action for Radioactive Waste Rock Piles in China

2000 ◽  
Vol 663 ◽  
Author(s):  
Chen Zhangru ◽  
Jin Yuanxin ◽  
Song Lanying ◽  
Wu Qingyan
Keyword(s):  
Radioactive Waste ◽  
Gamma Ray ◽  
Waste Rock ◽  
Chinese Government ◽  
Uranium Deposits ◽  
Remedial Action ◽  
Waste Rocks ◽  
Remedial Actions ◽  
Waste Rock Piles ◽  
The Individual

ABSTRACTThe Chinese government has conducted remedial action for radioactive waste rock piles since 1990. The radioactive waste rocks produced in the course of geological exploration of uranium deposits are widely distributed over several hundreds of locations in more than 20 provinces in China.The following remedial actions for radioactive waste rock piles have been undertaken in China:1. Protecting dams for stabilizing the piles have been built. A total length of about 50,000 m of these dams has been completed.2. Soil layers have been emplaced on the radioactive waste rock piles. The focus of the action is to eliminate the radiation harmful to public health. A total area of 750,000 square meters of soil ahs been placed on the piles in China.3. Radioactive waste rock piles have been vegetated. Aesthetic shaping of the landscape in the exploratory district of the uranium deposits is our expectant goal. A total area of about 560,000 square meters of vegetation has been placed on the soil covering the piles.Through these remedial actions, the environmental situation has been extensively improved in the remedial districts. The individual annual effective dose equivalent is less than 1 Sv/a. The radon emission rate is less than 20 pCi/m2.s. The gamma ray external exposure rate has been greatly reduced.

Multiphase transfer processes in waste rock piles producing acid mine drainage

2001 ◽  
Vol 52 (1-4) ◽  
pp. 165-186 ◽  
Author(s):  
René Lefebvre ◽  
Daryl Hockley ◽  
Jason Smolensky ◽  
Ann Lamontagne
Keyword(s):  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Waste Rock ◽  
Transfer Processes ◽  
Acid Mine ◽  
Waste Rock Piles
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