Assessing Options for Remediation of Contaminated Mine Site Drainage Entering the River Teign, Southwest England

被引:3
作者
Jordan, Abigail [1 ]
Hill, Rachel [1 ]
Turner, Adrienne [1 ]
Roberts, Tyrone [1 ]
Comber, Sean [1 ]
机构
[1] Univ Plymouth, Sch Geog Earth & Environm Sci, Plymouth PL4 8AA, Devon, England
关键词
trace metals; mine remediation; zinc; red media; biochar; ZINC; WATER; ADSORPTION; REMOVAL; CADMIUM; BIOCHAR; COPPER; STRAW;
D O I
10.3390/min10080721
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The river Teign in Devon has come under scrutiny for failing to meet environmental quality standards for ecotoxic metals due to past mining operations. A disused mine known as Bridford Barytes mine, has been found to contribute a significant source of Zn, Cd and Pb to the river. Recently, studies have been focused on the remediation of such mine sites using low-cost treatment methods to help reduce metal loads to the river downstream. This paper explores the metal removal efficiency of red mud, a waste product from the aluminium industry, which has proven to be an attractive low-cost treatment method for adsorbing toxic metals. Adsorption kinetics and capacity experiments reveal metal removal efficiencies of up to 70% within the first 2 h when red mud is applied in pelletized form. Further, it highlights the potential of biochar, another effective adsorbent observed to remove >90% Zn using agricultural feedstock. Compliance of the Teign has been investigated by analysing dissolved metal concentrations and bioavailable fractions of Zn to assess if levels are of environmental concern. By applying a real-world application model, this study reveals that compressed pellets and agricultural biochar offer an effective, low-cost option to reducing metal concentrations and thus improving the quality of the river Teign.
引用
收藏
页码:1 / 19
页数:19
相关论文
共 35 条
[1]  
Abdus-Salam N., 2005, African Journal of Science and Technology, V6, P55
[2]   Acid Mine Drainage (AMD): causes, treatment and case studies [J].
Akcil, Ata ;
Koldas, Soner .
JOURNAL OF CLEANER PRODUCTION, 2006, 14 (12-13) :1139-1145
[3]  
[Anonymous], 2014, WAT FRAM DIR IMPL EN
[4]  
[Anonymous], 2019, ENV AGENCY DATA CATC
[5]  
[Anonymous], 2016, THESIS
[6]  
[Anonymous], 2017, THESIS
[7]   Treatment from abandoned mine landfill leachates. Adsorption technology [J].
Ayala, Julia ;
Fernandez, Begona .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2019, 8 (03) :2732-2740
[8]   Zinc Hyperaccumulation in Plants: A Review [J].
Balafrej, Habiba ;
Bogusz, Didier ;
Triqui, Zine-El Abidine ;
Guedira, Abdelkarim ;
Bendaou, Najib ;
Smouni, Abdelaziz ;
Fahr, Mouna .
PLANTS-BASEL, 2020, 9 (05)
[9]   Synoptic monitoring as an approach to discriminating between point and diffuse source contributions to zinc loads in mining impacted catchments [J].
Banks, V. J. ;
Palumbo-Roe, B. .
JOURNAL OF ENVIRONMENTAL MONITORING, 2010, 12 (09) :1684-1698
[10]   A review of the use of red mud as adsorbent for the removal of toxic pollutants from water and wastewater [J].
Bhatnagar, Amit ;
Vilar, Vitor J. P. ;
Botelho, Cidalia M. S. ;
Boaventura, Rui A. R. .
ENVIRONMENTAL TECHNOLOGY, 2011, 32 (03) :231-249