An overview of main arsenic removal technologies

Zakhar, Ronald; Derco, Ján; Cacho, Frantisek

doi:10.2478/acs-2018-0016

Cited by 65 publications

(18 citation statements)

References 37 publications

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“…Under oxidizing conditions, arsenic exists mainly in pentavalent arsenic, including H 3 AsO 4 , H 2 AsO 4 − , HAsO 4 2− , and AsO 4 3− . Under anoxic conditions, trivalent arsenic is its main form in water H 3 AsO 3 , H 2 AsO 3 − , HAsO 3 2− , and AsO 3 3− [ 21 ]. Sb(V) and As(V) exist stably in an oxygen−containing environment, while in anoxic environments, Sb(III) and As(III) exist stably in groundwater or pore water.…”

Section: Chemical Properties Hazards and Sources Of Antimony And Arsenicmentioning

confidence: 99%

Frontier Materials for Adsorption of Antimony and Arsenic in Aqueous Environments: A Review

Song

Zheng

et al. 2022

IJERPH

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As highly toxic and carcinogenic substances, antimony and arsenic often coexist and cause compound pollution. Heavy metal pollution in water significantly threatens human health and the ecological environment. This article elaborates on the sources and hazards of compound antimony and arsenic contamination and systematically discusses the research progress of treatment technology to remove antimony and arsenic in water. Due to the advantages of simple operation, high removal efficiency, low economic cost, and renewable solid and sustainable utilization, adsorption technology for removing antimony and arsenic from sewage stand out among many treatment technologies. The adsorption performance of adsorbent materials is the key to removing antimony and arsenic in water. Therefore, this article focused on summarizing frontier adsorption materials’ characteristics, adsorption mechanism, and performance, including MOFs, COFs, graphene, and biomass materials. Then, the research and application progress of antimony and arsenic removal by frontier materials were described. The adsorption effects of various frontier adsorption materials were objectively analyzed and comparatively evaluated. Finally, the characteristics, advantages, and disadvantages of various frontier adsorption materials in removing antimony and arsenic from water were summarized to provide ideas for improving and innovating adsorption materials for water pollution treatment.

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Section: Chemical Properties Hazards and Sources Of Antimony And Arsenicmentioning

confidence: 99%

Frontier Materials for Adsorption of Antimony and Arsenic in Aqueous Environments: A Review

Song

Zheng

et al. 2022

IJERPH

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“…These health implications include cardiovascular problems, cough, gastrointestinal problems, anaemia and leucopenia, hepatic effects, renal effects, neurological effects, dermal effects to carcinogenic effects, even foetal loss and premature delivery among women and many more. Several researches have focused on the economic aspect of filtration technology (CPCB, 2002; Singh et al, 2014; Udayanapillai & Kaliammal, 2016; Zakhar et al, 2018); many of them concentrated on site-specific recharge structures or tank size and its cost-benefit analysis (Anand et al, 2017; CGWB, 2013; Okoye et al, 2015; Martinson et al, 2002). Though RRH is reckoned to be a feasible alternative for decontamination of surface and groundwater, the current practices and performances of RRH in the contaminated areas of West Bengal have been largely unexplored (Özdemir et al, 2011).…”

Section: Background Of the Studymentioning

confidence: 99%

Water Insufficiency, Health Hazards and Rainwater Harvesting in North 24 Parganas, West Bengal, India: Results of a Socio-economic Survey

Biswas¹,

Debsarkar

Pal

2020

Arthaniti: Journal of Economic Theory and Practice

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Rural households suffer from various health hazards due to unsafe water. Rooftop rainwater harvesting (RRH) has been recommended by various experts as a safer alternative to contaminated ground and surface water. The rural households, however, for various reasons, may not be willing to adopt RRH. The present study was based on primary data collected from 923 rural households in 4 blocks of North 24 Parganas district, West Bengal, India to identify the socio-demographic factors influencing the occurrence of health hazards and willingness to adopt RRH (WRRH). The study was focused on how health hazards and WRRH were related to water insufficiency, water awareness, poverty level and other socio-demographic variables. RRH not only depends on its feasibility but also on the willingness of the household to install it. A set of indices, namely health hazard index (HHI), water insufficiency index (WII), water awareness action index (WAAI), willingness to adopt RRH index (WRRHI) and Poverty Level Index (PLI) were developed from the relevant indicators. A binary logistic regression of HHI and WRRH was carried out on these indices along with some other socio-demographic variables. Most of these indices were found to have a significant effect on HHI. WRRH, however, was not found to depend on these indices, rather on religious belief and awareness of the adverse effects of arsenic poisoning in the village. The study also highlights the significance of undertaking awareness programmes on the consequences of using unsafe water by the government and non-governmental organisations.

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“…Predominant form of arsenic is determined the pH value. In the natural water bodies of pH ranging from 5 to 8, the pentavalent form is about five times compared to trivalent form [ 6 ]. The groundwater arsenic concentration may be high up to the level of 3500 ppm, and its toxicity affected population is more than 200 million globally [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Waste seeds of Mangifera indica, Artocarpus heterophyllus, and Schizizium commune as biochar for heavy metal removal from simulated wastewater

Giri

Jha

Srivastava

et al. 2022

Biomass Conv. Bioref.

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The threat of arsenic contamination in water is a challenging issue worldwide. Millions of people utilize untreated groundwater having high levels of arsenic in developing countries. Design Expert 6.0.8 has been used to design experiments and carried out statistical analysis for optimization of different parameters. It is of prime importance to develop cheap environment friendly bio-sorbent for protecting health of the poor from ill effects of arsenic. In the present investigation, we prepared bio-sorbent from the solid waste seed biomass of Mangifera indica (M), Artocarpus heterophyllus (JF), and Schizizium commune (JP). The characterization of bio-sorbents has been done by using different techniques namely FTIR and XRD. Arsenic concentration was estimated using ICP and adsorption parameters optimized for pH, adsorbent dose, and initial arsenic concentration. At pH 8.4, kinetics study of arsenic removal was M (94%), JF (93%), and JP (92%) for initial concentration of 2.5 ppm. The adsorption kinetics was well explained by Freundlich model and pseudo-second reaction order. Supplementary Information The online version contains supplementary material available at 10.1007/s13399-021-02078-5.

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An overview of main arsenic removal technologies

Cited by 65 publications

References 37 publications

Frontier Materials for Adsorption of Antimony and Arsenic in Aqueous Environments: A Review

Frontier Materials for Adsorption of Antimony and Arsenic in Aqueous Environments: A Review

Water Insufficiency, Health Hazards and Rainwater Harvesting in North 24 Parganas, West Bengal, India: Results of a Socio-economic Survey

Waste seeds of Mangifera indica, Artocarpus heterophyllus, and Schizizium commune as biochar for heavy metal removal from simulated wastewater

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