Acid mine drainage treatment by integrated submerged membrane distillation-sorption system.

Acids / chemistry Distillation Metals, Heavy / chemistry Mining / methods Water Pollutants, Chemical / analysis
Acid mine drainage Heavy metal Integrated process Sorption Submerged membrane distillation Zeolite

Journal

Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657

Informations de publication

Date de publication:
Mar 2019
Historique:
received: 24 09 2018
revised: 20 11 2018
accepted: 23 11 2018
entrez: 6 1 2019
pubmed: 6 1 2019
medline: 14 2 2019
Statut: ppublish

Résumé

Acid mine drainage (AMD), an acidic effluent characterized by high concentrations of sulfate and heavy metals, is an environmental and economic concern. The performance of an integrated submerged direct contact membrane distillation (DCMD) - zeolite sorption system for AMD treatment was evaluated. The results showed that modified (heat treated) zeolite achieved 26-30% higher removal of heavy metals compared to natural untreated zeolite. Heavy metal sorption by heat treated zeolite followed the order of Fe > Al > Zn > Cu > Ni and the data fitted well to Langmuir and pseudo second order kinetics model. Slight pH adjustment from 2 to 4 significantly increased Fe and Al removal rate (close to 100%) due to a combination of sorption and partial precipitation. An integrated system of submerged DCMD with zeolite for AMD treatment enabled to achieve 50% water recovery in 30 h. The integrated system provided a favourable condition for zeolite to be used in powder form with full contact time. Likewise, heavy metal removal from AMD by zeolite, specifically Fe and Al, mitigated membrane fouling on the surface of the hollow fiber submerged membrane. The integrated system produced high quality fresh water while concentrating sulfuric acid and valuable heavy metals (Cu, Zn and Ni).

Identifiants

DOI: 10.1016/j.chemosphere.2018.11.153 PMID: 30609501
pubmed: 30609501
pii: S0045-6535(18)32260-4
doi: 10.1016/j.chemosphere.2018.11.153
pii:
doi:

Substances chimiques

Acids 0
Metals, Heavy 0
Water Pollutants, Chemical 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

955-965

Informations de copyright

Copyright © 2018 Elsevier Ltd. All rights reserved.

Auteurs

Seongchul Ryu (S)

Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia.

Gayathri Naidu (G)

Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia.

Md Abu Hasan Johir (MA)

Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia.

Youngkwon Choi (Y)

Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia.

Sanghyun Jeong (S)

Graduate Schoolof Water Resources, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do, 16419, Republicof Korea.

Saravanamuthu Vigneswaran (S)

Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW, 2007, Australia. Electronic address: Saravanamuth.Vigneswaran@uts.edu.au.

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Classifications MeSH

questionsmedicales.fr › Produits chimiques inorganiques › Acides › Acid mine drainage treatment by integrated...
questionsmedicales.fr › Techniques d'investigation › Techniques de chimie analytique › Fractionnement chimique › Distillation › Acid mine drainage treatment by integrated...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Acid mine drainage treatment by integrated...
questionsmedicales.fr › Technologie, industrie et agriculture › Industrie › Secteur secondaire › Industrie d'extraction et de transformation › Mine › Acid mine drainage treatment by integrated...
questionsmedicales.fr › Actions chimiques et utilisations › Actions toxiques › Polluants environnementaux › Polluants de l'eau › Polluants chimiques de l'eau › Acid mine drainage treatment by integrated...