Application of low-pressure nanofiltration coupled with a bicycle pump for the treatment of arsenic-contaminated groundwater

Jeong-hak, Oh，; Yamamoto, Kazuo; Kitawaki, Hidetoshi; Nakao, Shin-ichi; Sugawara, Takashi; Rahman, Mujibur

doi:10.1016/s0011-9164(00)00165-x

Cited by 59 publications

(15 citation statements)

References 7 publications

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“…Boron241–258 and arsenic259–285 removal by membranes have received substantial attention since these contaminants present acute health risks 13. The World Health Organization has recommended upper limits in drinking water for arsenic and boron of 0.01 mg L −1 and 0.5 mg L −1 , respectively 19.…”

Section: Reverse Osmosis Membranesmentioning

confidence: 99%

Water purification by membranes: The role of polymer science

Geise

Lee

Miller

et al. 2010

J Polym Sci B Polym Phys

880

694

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Two of the greatest challenges facing the 21st century involve providing sustainable supplies of clean water and energy, two highly interrelated resources, at affordable costs. Membrane technology is expected to continue to dominate the water purification technologies owing to its energy efficiency. However, there is a need for improved membranes that have higher flux, are more selective, are less prone to various types of fouling, and are more resistant to the chemical environment, especially chlorine, of these processes. This article summarizes the nature of the global water problem and reviews the state of the art of membrane technology. Existing deficiencies of current membranes and the opportunities to resolve them with innovative polymer chemistry and physics are identified. Extensive background is provided to help the reader understand the fundamental issues involved. Ph.D. students and two postdoctoral fellows performing fundamental research in gas and liquid separations using polymer membranes and barrier packaging. His research group focuses on include structure/property correlation development for desalination and vapor separation membrane materials, new materials for hydrogen separation and natural gas purification, nanocomposite membranes, reactive barrier packaging materials, and new materials for improving fouling resistance and permeation performance in liquid separation membranes. His research is described in more than 250 publications, and he has coedited four books on these topics. He has won a number of national awards for his research contributions, including the ACS

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Section: Reverse Osmosis Membranesmentioning

confidence: 99%

Water purification by membranes: The role of polymer science

Geise

Lee

Miller

et al. 2010

J Polym Sci B Polym Phys

880

694

View full text Add to dashboard Cite

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“…Amy et al [2] Desal DK2540F 96% Sato et al [6] NTR-7250 (polyvinyl alcohol) >95% NTR-729HF (polyvinyl alcohol >95% Oh et al [7] ES-10 (polyamide) 99% Uddin et al [8] NF-90 and NF-200 (polyamide) >98%…”

Section: Researchers Membrane As (V) Rejectionmentioning

confidence: 99%

“…Nanofiltration (NF), as an important portion of membrane separation processes, along with other methods such as using adsorbents, is a conventional method for arsenic removal. Several researchers have studied removal of arsenic by commercial NF or reverse osmosis (RO) membranes that their results are summarized in Table …”

Section: Introductionmentioning

confidence: 99%

“…Several researchers have studied removal of arsenic by commercial NF or reverse osmosis (RO) membranes that their results are summarized in Table 2. [6][7][8] Polymers are the most widely used materials for membrane fabrication because of their desired mechanical properties, flexibility to be formed into different modules, intrinsic transport property and low cost. [9] Polysulfone (PSF) has been adopted as the membrane material for important separation processes, because it is reliably available in well-defined qualities such as [10,11] :…”

Section: Introductionmentioning

confidence: 99%

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Polysulfone/Brij‐58 blend nanofiltration membranes: preparation, morphology and performance

Saljoughi

Mousavi

Hosseini

2012

Polymers for Advanced Techs

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In present research, novel asymmetric polysulfone (PSF) membranes with high hydrophilicity and noticeable rejection of arsenic, as one of the major environmental problems, were prepared from PSF/Brij‐58/NMP (1‐methyl‐2‐pyrrolidone) system via immersion precipitation. Pure water was used as gelation media. The variation effect of coagulation bath temperature (CBT) and addition of Brij‐58 on morphology, wettabiliy, pure water permeation flux and rejection of As (III) and As (V), as two dominant states of arsenic in the nature, were studied by scanning electron microscopy, contact angle measuring instrument and experimental setup. The results demonstrated that both hydrophilicity and rejection properties of the prepared membranes were significantly enhanced by small addition of Brij‐58 surfactant in the casting solution along with using the lowest level of CBT. Addition of 4 wt. % of Brij‐58 and using cold coagulation bath resulted in the highest rejection of As (V). Initial increase in Brij‐58 concentration, from 0 wt. % to 2 wt. %, resulted in higher rejection of As (III). However, higher Brij‐58 concentrations than 2 wt. % (increase from 2 wt. % to 6 wt. %) led to lower rejection of As (III). Also, it was found out that addition of Brij‐58 in the casting solution along with increasing the CBT resulted in formation of membranes with high permeability and sub‐layer porosity and thin top layer. Copyright © 2012 John Wiley & Sons, Ltd.

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“…They could explain their results in terms of extended Nernst-Planck equation. Oh et al (2000) applied reverse osmosis and nanofiltration membrane processes for the treatment of arsenic applying a low pressure (0.2-0.7 MPa) bicycle pump indicating the potential for this application of nanofiltration membranes in rural areas. Kang et al (2000) observed the same trend as Urase et al (1998) in comparative separation of As(III) and As(V).…”

Section: Membrane-based Processes For Purification Of Arsenic-contamimentioning

confidence: 99%

Contamination of groundwater by arsenic: a review of occurrence, causes, impacts, remedies and membrane-based purification

Pal¹,

Sen²,

Manna³

et al. 2009

Journal of Integrative Environmental Sciences

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The contamination of groundwater by leached out arsenic has assumed an alarming proportion in several countries. Continued and prolonged ingestion even at a very low level can lead to serious arsenic-related diseases. Strong epidemiological evidence of arsenic carcinogenicity has forced the World Health Organization (WHO) to lower the maximum permissible contaminant limit (MCL) in drinking water to 10 ppb from earlier limit of 50 ppb. This has thrown a big challenge to the scientific community to devise efficient methods to purify contaminated water to such a high level. Though literature abounds in occurrence of groundwater contamination by arsenic and its removal from drinking water by laboratory techniques, millions of people continue to suffer, particularly in the developing countries like India (Bangladesh, West Bengal). Through a comprehensive review of the existing literature on the occurrence, causes, impacts and remedial measures, this article finds out what has gone wrong and what is to be done with special emphasis on membrane-based separation that seems to be highly promising in purifying arsenic-contaminated groundwater to a WHOprescribed level.

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Application of low-pressure nanofiltration coupled with a bicycle pump for the treatment of arsenic-contaminated groundwater

Cited by 59 publications

References 7 publications

Water purification by membranes: The role of polymer science

Water purification by membranes: The role of polymer science

Polysulfone/Brij‐58 blend nanofiltration membranes: preparation, morphology and performance

Contamination of groundwater by arsenic: a review of occurrence, causes, impacts, remedies and membrane-based purification

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