Simultaneous removal of heavy metals from phosphorous rich real wastewaters by micellar-enhanced ultrafiltration

Landaburu-Aguirre, Junkal; Pongrácz, Éva; Sarpola, Arja; Keiski, Riitta L.

doi:10.1016/j.seppur.2011.12.025

Cited by 59 publications

(21 citation statements)

References 27 publications

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“…Continuing this work, Landaburu‐Aguirre et al . reported that although secondary pollution resulting from surfactant monomers that are not retained traditionally posed a problem in MEUF operations, the phenomenon was not a problem in their work. In another study, Landaburu‐Aguirre et al .…”

Section: Description Of Treatment Technologiesmentioning

confidence: 99%

Separation of transition metals and chelated complexes in wastewaters

Cheung

2014

Env Prog and Sustain Energy

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This review responds to the ongoing needs of wastewater engineers tasked with treating aqueous solutions containing chelated complexes of metal ions, of which nickel citrate in electrodeless plating and copper–EDTA in electronic chip board manufacturing are two key examples. Because of the presence of these sequestering agents, metallic ions cannot be readily precipitated by alkalinity, making a compelling case for the discovery of alternative methods of treatment. This review is a critical appraisal of the varying degrees of success in separation process strategies deployed for the recovery of metallic ions under such challenging chemical conditions. Guidance is provided on making progress toward satisfactory industrial solutions to surmount these difficulties. © 2014 American Institute of Chemical Engineers Environ Prog, 34: 761–783, 2015

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Section: Description Of Treatment Technologiesmentioning

confidence: 99%

Separation of transition metals and chelated complexes in wastewaters

Cheung

2014

Env Prog and Sustain Energy

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“…Different types of membranes allow only the passage of low molecular solutes, and the remaining ones, such as larger molecules and heavy metals, do not pass through and are separated out. It has also been divided into subcategories, such as micellar enhanced ultrafiltration (Landaburu-Aguirre et al 2012;Yurlova et al 2002), complexation-ultrafiltration (Molinari et al 2008) and chelating enhanced ultrafiltration (Kryvoruchko et al 2002).…”

Section: Ultrafiltrationmentioning

confidence: 99%

Removal of heavy metals from emerging cellulosic low-cost adsorbents: a review

2016

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Heavy metal pollution is a major problems in the environment. The impact of toxic metal ions can be minimized by different technologies, viz., chemical precipitation, membrane filtration, oxidation, reverse osmosis, flotation and adsorption. But among them, adsorption was found to be very efficient and common due to the low concentration of metal uptake and economically feasible properties. Cellulosic materials are of low cost and widely used, and very promising for the future. These are available in abundant quantity, are cheap and have low or little economic value. Different forms of cellulosic materials are used as adsorbents such as fibers, leaves, roots, shells, barks, husks, stems and seed as well as other parts also. Natural and modified types of cellulosic materials are used in different metal detoxifications in water and wastewater. In this review paper, the most common and recent materials are reviewed as cellulosic low-cost adsorbents. The elemental properties of cellulosic materials are also discussed along with their cellulose, hemicelluloses and lignin contents.

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“…Another effective method is micellar extraction with micellar-enhanced ultrafiltration (MEUF) [9][10][11][12]. When an anionic surfactant such as sodium dodecylsulfate (SDS) is added to water above the critical micelle concentration (CMC), surfactant monomers aggregate to form negatively charged micelles.…”

Section: Solvent Extraction Research and Development Japan Vol 20mentioning

confidence: 99%