Multiple inorganic toxic substances contaminating the groundwater of Myingyan Township, Myanmar: Arsenic, manganese, fluoride, iron, and uranium

Bacquart, Thomas; Frisbie, Seth H.; Mitchell, Erika J.; Grigg, Laurie D; Cole, Christopher; Small, Colleen; Sarkar, Bibudhendra

doi:10.1016/j.scitotenv.2015.02.038

Cited by 119 publications

(52 citation statements)

References 20 publications

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“…The need for regular monitoring and protection of groundwater sources has been pointed out by several studies (Bacquart et al, 2015;Oyelami et al, 2013;Porowska, 2014;Rao, 2014;Vasanthaviger et al, 2013;Wanke et al, 2015), and it is re-emphasized in this study. Oftentimes, the necessity for treatment and the type of treatment required is only brought to the fore through such regular exercise which is often oblivious to the consumers and industrial users.…”

Section: Resultsmentioning

confidence: 68%

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Sojobi

2016

Environ Monit Assess

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Evaluation of water quality of nine boreholes and three open hand-dug wells in a rural community in North Central Nigeria revealed relative abundance of cations Na > k > Ca > Mg > Zn > Pb and anions Cl(-) > PO4(2-) > SO4(2-) > NO3(-) in the boreholes and cations Ca > Na > K > Mg > Pb and anions NO3(-) > PO4(2-) > SO4(2-) > Cl(-) in the wells. The major contaminants exceeding SON and WHO permissible limits were NO3(-) , Mg, TH, pH and Mg, Pb, TH, pH and DO in the wells and boreholes, respectively. They are attributable to anthropogenic sources such as domestic waste water and poor waste disposal and natural sources such as mineral dissolution from clayey aquifer which made the acidic groundwater unsuitable for consumption unless they are appropriately treated. Correlation studies revealed existence of three major mineral groups in the aquifer Ca-Fe group, Na-Mg group, Zn-K group, as well as a minor group Pb-group, and they determine the chemical composition of the groundwater and the ionic exchange between the groundwater and mineral-bearing clayey aquifer. In order to curb microbial contamination by Enterobacter aerogenes and Escherichia coli, it is recommended that proper latrines and drainages be provided while domesticated animals should be restricted from boreholes and well. Further, treatment with water guard and pur purifier is recommended.

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Section: Resultsmentioning

confidence: 68%

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Sojobi

2016

Environ Monit Assess

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“…From these values, one can see that the obtained adsorption data are adequately described by the Langmuir model. Following the recommendations of Tran et al [16], the separation factor R L (which is sometimes referred to as the equilibrium parameter) has been calculated, according to Equation (5).…”

Section: Effect Of Metal Ion Concentration On the Adsorption Efficiencymentioning

confidence: 99%

“…They often cause deleterious effects on aquatic life and to the terrestrial environment [2,3]. Contamination of surface water and groundwater with toxic and/or cancerogenic heavy metals and its subsequent use as a source of drinking water without previous treatment is a major threat to human health [4][5][6]. To date,~40% of the world's population suffers from water scarcity and lack access to unpolluted water or basic sanitation [7].…”

Section: Introductionmentioning

confidence: 99%

Removal of Barium, Cobalt, Strontium, and Zinc from Solution by Natural and Synthetic Allophane Adsorbents

et al. 2018

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Abstract:The capacity and mechanism of the adsorption of aqueous barium (Ba), cobalt (Co), strontium (Sr), and zinc (Zn) by Ecuadorian (NatAllo) and synthetic (SynAllo-1 and SynAllo-2) allophanes were studied as a function of contact time, pH, and metal ion concentration using kinetic and equilibrium experiments. The mineralogy, nano-structure, and chemical composition of the allophanes were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and specific surface area analyses. The evolution of adsorption fitted to a pseudo-first-order reaction kinetics, where equilibrium between aqueous metal ions and allophane was reached within <10 min. The metal ion removal efficiencies varied from 0.7 to 99.7% at pH 4.0 to 8.5. At equilibrium, the adsorption behavior is better described by the Langmuir model than by the Dubinin-Radushkevich model, yielding sorption capacities of 10.6, 17.2, and 38.6 mg/g for Ba 2+ , 12.4, 19.3, and 29.0 mg/g for HCoO − 2 ; 7.2, 15.9, and 34.4 mg/g for Sr 2+ ; and 20.9, 26.9, and 36.9 mg/g for Zn 2+ , by NatAllo, SynAllo-2, and SynAllo-1, respectively. The uptake mechanism is based on a physical adsorption process rather than chemical ion exchange. Allophane holds great potential to effectively remove aqueous metal ions over a wide pH range and could be used instead of other commercially available sorbent materials such as zeolites, montmorillonite, carbonates, and phosphates for special wastewater treatment applications.

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“…They often cause deleterious effects on aquatic life and to the terrestrial environment [2,3]. Contamination of surface water and groundwater with toxic and/or cancerogenic heavy metals and its subsequent use as a source of drinking water without previous treatment is a major threat to human health [4][5][6]. To date, ~40 % of the world's population suffer from water scarcity and lack access to unpolluted water or basic sanitation [7].…”

Section: Introductionmentioning

confidence: 99%

Removal of barium, cobalt, strontium and zinc from solution by natural and synthetic allophane adsorbents

Baldermann¹,

Grießbacher²,

Baldermann³

et al. 2018

Preprint

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Abstract:The capacity and the mechanism of the adsorption of aqueous barium (Ba), cobalt (Co), strontium (Sr) and zinc (Zn) by Ecuadorian (NatAllo) and synthetic (SynAllo-1 and SynAllo-2) allophanes were studied as a function of contact time, pH and metal ion concentration using kinetic and equilibrium experiments. The mineralogy, nano-structure and chemical composition of the allophanes were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy and specific surface area analyses. The evolution of adsorption fitted to a pseudo-first-order reaction kinetics, where equilibrium between aqueous metal ions and allophane was reached within < 10 min. The metal ion removal efficiencies varied from 0.7 to 99.7 % at pH 4.0 to 8.5. At equilibrium, the adsorption behavior is better described by the Langmuir model than by the Dubinin-Radushkevich model, yielding sorption capacities of 10.6, 17.2 and 38.6 mg/g for Ba , 12.4, 19.3 and 29.0 mg/g for HCoO , 7.2, 15.9 and 34.4 mg/g for Sr and 20.9, 26.9 and 36.9 mg/g for Zn , respectively, by NatAllo, SynAllo-2 and SynAllo-1. The uptake mechanism is based on a physical adsorption process. Allophane holds great potential to remove aqueous metal ions and could be used instead of zeolites, montmorillonite, carbonates and phosphates for wastewater treatment.

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Multiple inorganic toxic substances contaminating the groundwater of Myingyan Township, Myanmar: Arsenic, manganese, fluoride, iron, and uranium

Cited by 119 publications

References 20 publications

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Removal of Barium, Cobalt, Strontium, and Zinc from Solution by Natural and Synthetic Allophane Adsorbents

Removal of barium, cobalt, strontium and zinc from solution by natural and synthetic allophane adsorbents

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