Role of Membranes in Wastewater Treatment

Kapoor, Ashish; Balasubramanian, Sivasamy; Kavitha, E.; Poonguzhali, E.; Sivaraman, P.

doi:10.1007/978-3-030-54723-3_8

Cited by 2 publications

(1 citation statement)

References 95 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simultaneous separation of pure metals from the combination of metals as found in real AMD would be a quantum leap ahead in this area. The membrane fractionation of metals or metal complexes using chelating agents and/or surfactants may be the way ahead for metal separation, acceptable environmental discharge of treated AMD (Santoro et al, 2021;Kapoor et al, 2021). Regrettably, the practicality of future AMD remediation is intrinsically connected to the costs associated with the various techniques.…”

Section: Physical Remediation Options: Decision-making Factorsmentioning

confidence: 99%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

View full text Add to dashboard Cite

The successful acid mine drainage (AMD) treatment needs site-specific installation and implementation, as well as the deployment of technology that is compatible with the pollutants contained in the AMD. If key by-products of the AMD can be recovered, the financial sustainability of the AMD remediation method may be greatly improved. Additional research into novel and innovative solutions is necessary to advance in this direction. To accomplish this, it is necessary to have a complete awareness of current remediation technologies that are available and accessible. Active physical treatment methods such as ion exchange, adsorption, electrochemistry, and membrane techniques were examined in this article. Membrane technology excels in terms of ease of use, versatility, and environmental effect but produces brine streams the management of which remains vital for future adoption of the technology. Liquid membranes (LM), Micellar Enhanced Ultra-Filtration (MEUF), and Polyelectrolyte Enhanced Ultra-Filtration (PEUF) are all innovative membrane technologies that may provide some possibilities for metal recovery from chemical sludge and/or brine streams. Electrochemical technologies are considered an attractive alternative for AMD treatment, because they require only electricity as a consumable and can treat AMD to high standards by removing metals via (co)precipitation and sulfate via ionic migration (when an anion-exchange membrane is used in the configuration), while producing significantly less sludge. However, the accepted shortcomings include membrane/electrode fouling produced by (co)precipitates on the active surfaces necessary for the process, a lack of understanding regarding the effective scaling up to industrial scale, and the relatively expensive capital expenditure (CAPEX) required. The removal of heavy metals from AMD effluents by adsorption has a number of technical and environmental benefits, including high efficiency, and environmental friendliness. Despite its benefits, this technique has certain hurdles, such as the production process for low-cost adsorbents.

show abstract

Section: Physical Remediation Options: Decision-making Factorsmentioning

confidence: 99%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

View full text Add to dashboard Cite

show abstract

Adopting Sustainable Jatropha Oil Bio-Based Polymer Membranes as Alternatives for Environmental Remediation

et al. 2022

View full text Add to dashboard Cite

This study aimed to optimize the removal of Cu(II) ions from an aqueous solution using a Jatropha oil bio-based membrane blended with 0.50 wt% graphene oxide (JPU/GO 0.50 wt%) using a central composite model (CCD) design using response surface methodology. The input factors were the feed concentration (60–140) ppm, pressure (1.5–2.5) bar, and solution pH value (3–5). An optimum Cu(II) ions removal of 87% was predicted at 116 ppm feed concentration, 1.5 bar pressure, and pH 3.7, while the validated experimental result recorded 80% Cu(II) ions removal, with 95% of prediction intervals. A statistically non-significant term was removed from the analysis by the backward elimination method to improve the model’s accuracy. Using the reduction method, the predicted R2 value was increased from −0.16 (−16%) to 0.88 (88%), suggesting that the reduced model had a good predictive ability. The quadratic regression model was significant (R2 = 0.98) for the optimization prediction. Therefore, the results from the reduction model implied acceptable membrane performance, offering a better process optimization for Cu(II) ions removal.

show abstract

Role of Membranes in Wastewater Treatment

Cited by 2 publications

References 95 publications

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Adopting Sustainable Jatropha Oil Bio-Based Polymer Membranes as Alternatives for Environmental Remediation

Contact Info

Product

Resources

About