Journal article
Biowaste-based sorbents for arsenic removal from aqueous medium and risk assessment
Environmental Geochemistry and Health, Vol.45, pp.9017-9028
12/2023
PMID: 36175704
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Abstract
Water contamination by arsenic (As) is widespread and is posing serious health threats globally. Hence, As removal techniques/adsorbents need to be explored to minimize potentials hazards of drinking As-contaminated waters. A column scale sorption experiment was performed to assess the potential of three biosorbents (tea waste, wheat straw and peanut shells) to remove As (50, 100, 200 and 400 µg L−1) from aqueous medium at a pH range of 5–8. The efficiency of agricultural biosorbents to remove As varies greatly regarding their type, initial As concentration in water and solution pH. It was observed that all of the biosorbents efficiently removed As from water samples. The maximum As removal (up to 92%) was observed for 400 µg L−1 initial As concentration. Noticeably, at high initial As concentrations (200 and 400 μg L−1), low pH (5 and 6) facilitates As removal. Among the three biosorbents, tea waste biosorbent showed substantial ability to minimize health risks by removing As (up to 92%) compared to peanut shells (89%) and wheat straw (88%). Likewise, the values of evaluated risk parameters (carcinogenic and non-carcinogenic risk) were significantly decreased (7–92%: average 66%) after biosorption experiment. The scanning electron microscopy, Fourier transform infrared spectroscopy, energy-dispersive X-ray and X-ray diffraction analyses confirmed the potential of biosorbents to remediate As via successful loading of As on their surfaces. Hence, it can be concluded that synthesized biosorbents exhibit efficient and ecofriendly potential for As removal from contaminated water to minimize human health risk.
Details
- Title
- Biowaste-based sorbents for arsenic removal from aqueous medium and risk assessment
- Creators
- Maham Akhtar Nagra - COMSATS University IslamabadNatasha Natasha - COMSATS University IslamabadIrshad Bibi - University of Agriculture FaisalabadTasveer Zahra Tariq - Bahauddin Zakariya UniversityRabia Naz - COMSATS University IslamabadSabah Ansar - King Saud UniversityMuhammad Shahid - COMSATS University IslamabadBehzad Murtaza - COMSATS University IslamabadMuhammad Imran - COMSATS University IslamabadMuhammad Shafique Khalid - COMSATS University IslamabadNasir Masood - COMSATS University IslamabadGhulam Mustafa Shah - COMSATS University IslamabadNabeel Khan Niazi - University of Agriculture FaisalabadCamille Dumat - National Research Institute for Agriculture, Food and Environment
- Publication Details
- Environmental Geochemistry and Health, Vol.45, pp.9017-9028
- Publisher
- Springer Netherlands
- Identifiers
- 991013054678402368
- Copyright
- © The Author(s), under exclusive licence to Springer Nature B.V. 2022
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article