Investigation into arsenic retention in arid contaminated soils with biochar application
- PDF / 1,337,795 Bytes
- 8 Pages / 595.276 x 790.866 pts Page_size
- 6 Downloads / 215 Views
S. I. BIOCHAR
Investigation into arsenic retention in arid contaminated soils with biochar application Kiran Hina 1 & Maham Abbas 1 & Qaiser Hussain 2 & Muhammad Arshad 3 & Shafaqat Ali 4 & Muhammad Rizwan 4 Received: 11 October 2018 / Accepted: 3 October 2019 # Saudi Society for Geosciences 2019
Abstract The contamination of arsenic (As) in soil and groundwater has posed serious hazards to food chain and ecosystem. The aim of the present study was to assess the impacts of different biochar (rice husk biochar and plant biowaste biochar at 10 and 20 t ha−1) on the retention and immobilization of As in wheat. For this purpose, soil and herbage samples were collected in the vicinity of Gujranwala, Pakistan, and characterized for different physicochemical parameters. Pot experiment was carried out on wheat plant to check the effect and uptake of As (at two concentrations, i.e., 10 and 15 mg L−1) from irrigation water as affected by biochar. The results of the collected samples showed a minimum concentration of As and maximum concentration of lead (Pb) in Gujranwala City. Moreover, iron (Fe), chromium (Cr), and manganese (Mn) were the dominant elements in the sampling area. The application of biochar increased the plant biomass of wheat as compared to control. Among the studied biochars, the application of plant biowaste biochar significant increased the retention and immobilization of As at a higher level (15 mg L−1). However, the rich husk performs better at lower As level (10 mg L−1). Both the studied amendments increased the immobilization of As but plant biowaste biochar was more effective. The plant waste biochar could be used to improve agricultural production in polluted soil by minimizing the risk of food chain contamination. Keywords Biochar . Arsenic retention . Contaminated soil . Wheat
Introduction Environmental consequences of arsenic (As) are receiving worldwide attention due to the groundwater and soil pollution caused by arsenic. The soils, sludge, and sediments
contaminated with arsenic were the main cause of the presence of As in groundwater, surface water, drinking water, and in the food chain (Shankar et al. 2014). All continents have concerns with As contaminated underground water, but it is the most potent in South East Asia typically in Bangladesh
This article is part of the Topical Collection on Implications of Biochar Application to Soil Environment under Arid Conditions * Kiran Hina [email protected]
1
Department of Environmental Sciences, Hafiz Hayat Campus, University of Gujrat, Gujrat 54000, Pakistan
Maham Abbas [email protected]
2
Department of Soil Science and SWC, Arid Agriculture University, Rawalpindi, Pakistan
3
Institute of Environmental Sciences and Engineering (IESE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan
4
Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, Pakistan
Qaiser Hussain [email protected] Muham
Data Loading...
