Biomimetic dynamic membrane for aquatic dye removal

Chen, Wensong; Mo, Jiahao; Du, Xi; Zhang, Zhien; Zhang, Wenxiang

doi:10.1016/j.watres.2018.11.078

Cited by 333 publications

(61 citation statements)

References 40 publications

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“…Related technologies are based on physical, chemical, electrical, thermal, and biological principles [5]. Filtration on fixed beds has been demonstrated as the most important one because of its wide range of applications [6,7] and ease of operation [8,9]. Adsorptive filtration is considered the most affordable water treatment technology due to the availability of a wide range of suitable adsorbents [5,6,8].…”

Section: Introductionmentioning

confidence: 99%

“…Adsorption also enables the removal of biological, chemical, and physical pollutants. However, adsorption has its limitations, such as finding suitable materials of high adsorption capacity [5,8,9]. For the past two or three decades, metallic iron (Fe 0 ) has been discussed in the literature as an affordable reactive material for environmental remediation and decentralized safe drinking water provision [4].…”

Section: Introductionmentioning

confidence: 99%

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Water Treatment Using Metallic Iron: A Tutorial Review

Gwenzi

Sipowo-Tala

et al. 2019

Processes

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Researchers and engineers using metallic iron (Fe0) for water treatment need a tutorial review on the operating mode of the Fe0/H2O system. There are few review articles attempting to present systematic information to guide proper material selection and application conditions. However, they are full of conflicting reports. This review seeks to: (i) Summarize the state-of-the-art knowledge on the remediation Fe0/H2O system, (ii) discuss relevant contaminant removal mechanisms, and (iii) provide solutions for practical engineering application of Fe0-based systems for water treatment. Specifically, the following aspects are summarized and discussed in detail: (i) Fe0 intrinsic reactivity and material selection, (ii) main abiotic contaminant removal mechanisms, and (iii) relevance of biological and bio-chemical processes in the Fe0/H2O system. In addition, challenges for the design of the next generation Fe0/H2O systems are discussed. This paper serves as a handout to enable better practical engineering applications for environmental remediation using Fe0.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Water Treatment Using Metallic Iron: A Tutorial Review

Gwenzi

Sipowo-Tala

et al. 2019

Processes

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“…On the other hand, biological treatments utilize algae, bacteria, fungi, and yeasts to disintegrate dyes but require large areas and less tractability in operation [11]. There are also treatment methods that utilize synergistic mechanisms of different dye removal methods such as biomimetic membranes [13] and utilization of binary or ternary oxide systems [14]. But adsorption remains the fundamental simple and effective method.…”

Section: Introductionmentioning

confidence: 99%

Magnetic rice husk ash 'cleanser' as efficient methylene blue adsorbent

Lawagon

Amon

2019

Environmental Engineering Research

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Burning of agricultural residues has been a prevalent cause of environmental concern especially in developing countries. In the Philippines, rice husks are usually burned in open air and either usually left in the field or rarely collected to be sold in the wet market as a cleanser. Hence in this study, an alternative use of this burning residue (rice husks ash, RHA) for removal of dyes from aqueous solutions was explored. Yet, its applications in real wastewater will be difficult in its pristine powdered form. Therefore, the RHA was functionalized with Fe3O4 to become inherently magnetic (MRHA), providing relative ease in handling. The RHA used was obtained from the local markets of Davao City, Philippines. Systematic adsorption studies on the effects of contact time, solution pH, solid/liquid ratio, and feed concentration were conducted. MB adsorption was Langmuir-type and followed a pseudo-second-order rate model. Its adsorption rate is significantly fast (t = 10 min, k2 = 0.015 g mg-1 min-1) with high qm (150.5 mg g-1). MRHA was highly stable and reusable (> 10 cycles) demonstrating its high potential as an economical alternative for treatment of dye contaminated wastewater.

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“…Both grape fruits and mulberry fruits are excellent sources of polyphenols, 15 but they are quite different in terms of bioactive compounds and mineral composition, [16][17][18] making the dedicated investigation on mulberry wine micro-ltration necessary. Moreover, membrane fouling is a complex outcome of feed characteristics, 12,19 membrane properties 13,20 and operating conditions, 21 which necessitates a particular attention of research work.…”

Section: Introductionmentioning

confidence: 99%