Arsenic removal from water and river water by the combined adsorption - UF membrane process

Hao, Linlin; Wang, Nannan; Wang, Chang; Li, Guiju

doi:10.1016/j.chemosphere.2018.03.159

Cited by 109 publications

(22 citation statements)

References 36 publications

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“…Moreover, the discharge of the concentrate, membrane fouling and ux decline are usually inevitable in the membrane process. 41 The electro-dialysis was capable of removing both arsenic and other contaminants, but large amounts of insoluble coagulants were also deposited on the cathode. 42 Among many techniques currently available for arsenic removal from water, the adsorption process is considered one of the most promising techniques because of low cost, high efficiency, and ease of operation.…”

Section: Methodologies For Arsenic Removal From Watermentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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Section: Methodologies For Arsenic Removal From Watermentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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“…[ 11, 12 ] Among these methods, adsorption is one of the most promising methods because of its high efficiency, low cost, and simple operation. [ 12, 13 ] However, traditional adsorbents such as activated carbons, goethite, carbon nanotubes, and iron and aluminum oxides [ 2, 7, 11, 12 ] did not possess the adequate adsorption capacity. Therefore, it is of great significance to synthesize new adsorbents with high efficiency and high adsorption capacity for removing organic arsenics from the environment.…”

Section: Introductionmentioning

confidence: 99%

“…[ 22, 26 ] So far, many attempts have been made to use CPs as efficient adsorbents to eliminate As(III) and As(V) from the environment. [ 12, 13, 27, 28 ] However, less attention has been paid to the adsorptive removal of p ‐ASA and ROX. [ 12, 29 ] Therefore, it is essential to study CPs as adsorbents to remove p ‐ASA and ROX from the environment.…”

Section: Introductionmentioning

confidence: 99%

“…As previously reported, the adsorption capacities of organic arsenics by CPs mainly depended on electrostatic interactions, coordination bonding interactions, π–π* stacking, and hydrogen‐bonding interactions. [ 12, 13, 30 ] The amine group in p ‐ASA can be an important factor in enhancing the adsorptive affinity through strengthening the coordination bonds, π–π* stacking, and forming new adsorption sites through hydrogen‐bonding synergistic adsorption effect. [ 29 ] Therefore, designing an MOF containing amine groups may be an ideal strategy for the efficient removal of organic arsenic pollutants at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

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A new one‐dimensional coordination polymer synthesized from zinc and guanazole: Superior capture of organic arsenics

Wang

Zhang

Wang

et al. 2020

Applied Organom Chemis

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Organic arsenic compounds in the environment are a global threat to human health. This threat has created the urgency to develop highly efficient adsorbents with both high adsorption capacity and versatile removal of different arsenic compounds. A novel 1D zinc(II) coordination polymer, formulated as Zn2(datrz)2(bpy)Cl2 (BUC‐70) (datrz = guanazole, bpy = 4,4′‐bipyridine), was successfully synthesized through slow evaporation at room temperature. BUC‐70 exhibited an excellent adsorption capacity toward p‐arsanilic acid (p‐ASA) and roxarsone (ROX) in water, which could be ascribed to As–O–Zn bonding interactions and strong hydrogen‐bonding interactions between the organic arsenics and BUC‐70. The maximum adsorption capacities toward p‐ASA and ROX were 738 and 937 mg·g−1, respectively. BUC‐70 was effective in the removal of p‐ASA and ROX at low concentrations (<5 mg·l−1) from the simulated p‐ASA and ROX wastewater. Furthermore, the as‐synthesized BUC‐70 exhibited good adsorption property toward p‐ASA and ROX in wastewater simulated by lake water and tap water. After adsorptive treatment using BUC‐70, the concentrations of both p‐ASA and ROX were lower than the required concentrations of the drinking water standard of the World Health Organization and the surface water standard of China. Continuous‐flow, fixed‐bed column experiments were performed using BUC‐70 loaded on cotton as packing material to explore the potential large‐scale application.

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“…Arsenic also exists in organic form, e.g., arsenocholine, arsenobetaine and dimethylarsinous acid, however, these are not as harmful as the inorganic forms [3,4]. Mining, smelting, petroleum industry, combustion of fossil fuel in power plants and the use of arsenical pesticides and herbicides have contributed a lot towards the arsenic contamination in surface water and groundwater [5,6]. Excess exposure to arsenic can lead to damaging of the skin, lung, kidney, stomach, blood cell, brain and is also believed to be carcinogenic [1,4,7].…”

Section: Introductionmentioning

confidence: 99%

Application of Response Surface Methodology and Desirability Function in the Optimization of Adsorptive Remediation of Arsenic from Acid Mine Drainage Using Magnetic Nanocomposite: Equilibrium Studies and Application to Real Samples

2019

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A magnetic multi-walled carbon nanotube/zeolite nanocomposite was applied for the adsorption and removal of arsenic ions in simulated and real acid mine drainage samples. The adsorption mechanism was investigated using two-parameter (Langmuir, Freundlich, Temkin) and three-parameter (Redlich–Peterson, and Sips) isotherm models. This was done in order to determine the characteristic parameters of the adsorptive removal process. The results showed that the removal process was described by both mono- and multilayer adsorptions. Adsorption studies demonstrated that a multi-walled carbon nanotube/zeolite nanocomposite could efficiently remove arsenic in simulated samples within 35 min. Based on the Langmuir isotherm, the adsorption capacity for arsenic was found to be 28 mg g−1. The nanocomposite was easily separated from the sample solution using an external magnet and the regeneration was achieved by washing the adsorbent with 0.05 mol L−1 hydrochloric acid solution. Moreover, the nanoadsorbent was reusable for at least 10 cycles of adsorption-desorption with no significant decrease in the adsorption capacity. The nanoadsorbent was also used for the arsenic removal from acid mine drainage. Overall, the adsorbent displayed excellent reusability and stability; thus, they are promising nanoadsorbents for the removal of arsenic from acid mine drainage.

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Arsenic removal from water and river water by the combined adsorption - UF membrane process

Cited by 109 publications

References 36 publications

A critical review on arsenic removal from water using iron-based adsorbents

A critical review on arsenic removal from water using iron-based adsorbents

A new one‐dimensional coordination polymer synthesized from zinc and guanazole: Superior capture of organic arsenics

Application of Response Surface Methodology and Desirability Function in the Optimization of Adsorptive Remediation of Arsenic from Acid Mine Drainage Using Magnetic Nanocomposite: Equilibrium Studies and Application to Real Samples

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