Removal of arsenic from drinking water using modified natural zeolite

Baskan, Meltem Bilici; Pala, Ayşegül

doi:10.1016/j.desal.2011.08.015

Cited by 123 publications

(34 citation statements)

References 42 publications

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“…The study results of Aviles et al in 2013 showed that the efficiency of the domestic filter in arsenic removal was 95.4% (initial concentration of 0.11 mg/L) (24). The considerable removal efficiencies of arsenic were also reported by several studies that used household filter, ceramic filter, and modified natural zeolite filter in Vietnam, Bangladesh, and Turkey (13,32,33).…”

Section: Introductionmentioning

confidence: 64%

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Removal of Arsenic and Coliform Bacteria by Modified Sand Filter With Slag and Zeolite from Drinking Water

et al. 2017

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Background: Among the various adverse pollutants in water, coliform bacteria and arsenic are very important. Drinking of arseniccontaminated water has become a serious threat to public health and has affected millions of people across the world. Objectives: The aim of this study was to investigate the removal of arsenic and coliform bacteria from drinking water in small communities with the use of a conventional Slow Sand Filter (SSF) and modified filter by slag (SMF) and Zeolite (ZMF). Methods: In this study, initial concentrations of arsenic were 0.073, 0.11, 0.171, 0.21, 0.24, and 0.33 mg/l and the initial number of coliform bacteria was 4*10 6 MPN/100 mL. Arsenic and coliform bacteria samples were taken every 24 and 48 hours, respectively.

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Section: Introductionmentioning

confidence: 64%

“…A study, done in 2011, showed that adsorbent characterization of natural zeolites could be affected by parameters, such as their surface morphologies, chemical composition, physical properties, and specific surface areas (32). In another study in 2002, the researchers used granular slag columns for lead removal.…”

Section: Introductionmentioning

confidence: 99%

Removal of Arsenic and Coliform Bacteria by Modified Sand Filter With Slag and Zeolite from Drinking Water

et al. 2017

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“…Other bands that appear near the 1,020 cm −1 band arise from the asymmetric stretching vibration modes of internal Al(Si)-O bonds in AlO 4 tetrahedra (Al and Si). The 790 cm −1 bands are assigned to the stretching vibration modes of O-Al (Si)-O groups and the bending vibration modes of Al (Si)-O bonds, respectively [38,39].…”

Section: Ftir Spectroscopymentioning

confidence: 99%

Study on the removal of nitrate in groundwater from Căpuş, Cluj county by natural zeolite of Mirşid and granular activated carbon

Moşneag

Popescu

Neamţu

et al. 2014

Desalination and Water Treatment

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A B S T R A C TThis paper focuses on a comparative study regarding the performance of natural zeolite from Mirşid (NZM) and granular activated carbon (GAC), respectively, for treatment process of contaminated groundwater from Cȃpuş, Cluj region for nitrate removal. The effect of pH, conductivity, contact time, and nitrate concentration have been studied. The Langmuir and Freundlich models were used to fit the experimental data and these showed good correlations with the Freundlich model, providing a better description of the equilibrium (higher R 2 value). Textural analysis was employed in order to determine the specific surface area, and pore size distribution of the used activated carbon and natural zeolite. The adsorbents (GAC and NZM) were characterized by using Fourier transform infrared spectroscopy and x-ray powder diffraction.

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“…In a study [90], the time required to attain equilibrium for arsenic sorption on all types of clinoptilolite was 60 min. However, Fe modified clinoptilolite showed greater As sorption capacity (9.2 μg/g) in comparison with un-modified clinoptilolite, 1.5 μg/g.…”

Section: Treatment Processes For Remediation Of As Contaminated Watermentioning

confidence: 99%

Arsenic Contaminated Groundwater and Its Treatment Options in Bangladesh

Jiang

Ashekuzzaman

Jiang

et al. 2012

IJERPH

100

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Arsenic (As) causes health concerns due to its significant toxicity and worldwide presence in drinking water and groundwater. The major sources of As pollution may be natural process such as dissolution of As-containing minerals and anthropogenic activities such as percolation of water from mines, etc. The maximum contaminant level for total As in potable water has been established as 10 µg/L. Among the countries facing As contamination problems, Bangladesh is the most affected. Up to 77 million people in Bangladesh have been exposed to toxic levels of arsenic from drinking water. Therefore, it has become an urgent need to provide As-free drinking water in rural households throughout Bangladesh. This paper provides a comprehensive overview on the recent data on arsenic contamination status, its sources and reasons of mobilization and the exposure pathways in Bangladesh. Very little literature has focused on the removal of As from groundwaters in developing countries and thus this paper aims to review the As removal technologies and be a useful resource for researchers or policy makers to help identify and investigate useful treatment options. While a number of technological developments in arsenic removal have taken place, we must consider variations in sources and quality characteristics of As polluted water and differences in the socio-economic and literacy conditions of people, and then aim at improving effectiveness in arsenic removal, reducing the cost of the system, making the technology user friendly, overcoming maintenance problems and resolving sludge management issues.

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Removal of arsenic from drinking water using modified natural zeolite

Cited by 123 publications

References 42 publications

Removal of Arsenic and Coliform Bacteria by Modified Sand Filter With Slag and Zeolite from Drinking Water

Removal of Arsenic and Coliform Bacteria by Modified Sand Filter With Slag and Zeolite from Drinking Water

Study on the removal of nitrate in groundwater from Căpuş, Cluj county by natural zeolite of Mirşid and granular activated carbon

Arsenic Contaminated Groundwater and Its Treatment Options in Bangladesh

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