New trends in removing heavy metals from wastewater

With the development of researches, the treatments of wastewater have reached a certain level. Whereas, heavy metals in wastewater cause special concern in recent times due to their recalcitrance and persistence in the environment. Therefore, it is important to get rid of the heavy metals in wastewa...

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Bibliographic Details
Published in:Applied microbiology and biotechnology 2016-08, Vol.100 (15), p.6509-6518
Main Authors: Zhao, Meihua, Xu, Ying, Zhang, Chaosheng, Rong, Hongwei, Zeng, Guangming
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aqueous solutions
Biomedical and Life Sciences
Biotechnology
Catalysis
Chemical precipitation
Chemical properties
Desalination
Environmental aspects
Environmental cleanup
Environmental Restoration and Remediation - methods
Filtration - methods
Forecasts and trends
Heavy metals
Hydrogen sulfide
Ion Exchange
Life Sciences
Membrane separation
Metals, Heavy - chemistry
Methods
Microbial Genetics and Genomics
Microbiology
Mini-Review
Molecular weight
Osmosis
Photocatalysis
Photochemical Processes
Polymers
Purification
Separation (Technology)
Sewage
Studies
Surfactants
Trends
Waste Disposal, Fluid - methods
Waste Water
Wastewater pollution
Water Pollutants, Chemical - chemistry
Water Purification - methods
Water treatment
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Summary:With the development of researches, the treatments of wastewater have reached a certain level. Whereas, heavy metals in wastewater cause special concern in recent times due to their recalcitrance and persistence in the environment. Therefore, it is important to get rid of the heavy metals in wastewater. The previous studies have provided many alternative processes in removing heavy metals from wastewater. This paper reviews the recent developments and various methods for the removal of heavy metals from wastewater. It also evaluates the advantages and limitations in application of these techniques. A particular focus is given to innovative removal processes including adsorption on abiological adsorbents, biosorption, and photocatalysis. Because these processes have leaded the new trends and attracted more and more researches in removing heavy metals from wastewater due to their high efficency, pluripotency and availability in a copious amount. In general, the applicability, characteristic of wastewater, cost-effectiveness, and plant simplicity are the key factors in selecting the most suitable method for the contaminated wastewater.
ISSN:0175-7598
1432-0614
DOI:10.1007/s00253-016-7646-x