Adsorption of copper(II) onto sewage sludge-derived materials via microwave irradiation

Wang, X.J.; Xu, Xiaotian; Liang, Xiao; Wang, Y.; Liu, Miaomiao; Wang, X.; Xia, Siqing; Zhao, Jianfu; Yin, Daqiang; Zhang, Yalei

doi:10.1016/j.jhazmat.2011.06.030

Cited by 59 publications

(16 citation statements)

References 49 publications

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“…ZnCl 2 's properties as a heat carrier positively inuenced the initialization of pyrolysis and its addition also promotes the development of porosity in the biochar. 29 The solid-liquid mixture was shaken for 24 h and then ltered and nally dried in a drying oven at 105 C.…”

Section: Methodsmentioning

confidence: 99%

Chemical forms and risk assessment of heavy metals in sludge-biochar produced by microwave-induced low temperature pyrolysis

et al. 2016

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Section: Methodsmentioning

confidence: 99%

Chemical forms and risk assessment of heavy metals in sludge-biochar produced by microwave-induced low temperature pyrolysis

et al. 2016

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“…Copper is one of the most important and frequently used metals in industries such plating, mining, and petroleum refi ning [8]. These industries produce a great amount of wastewater and sludge containing a high concentration of copper cations, which have negative effects on the water environment.…”

Section: Preparation and Cu (Ii) Adsorption Characteristics Of Carboxmentioning

confidence: 99%

“…Many different methods have been proposed and used to convert this waste to a variety of sewage sludgebased adsorbents [6][7][8][9][10][11][12][13][14], including pyrolysis, chemical…”

Section: Introductionmentioning

confidence: 99%

Preparation and Cu (II) Adsorption Characteristics of Carboxymethyl Cross-Linked Sewage Sludge

Wang

Zhang

2016

Pol. J. Environ. Stud.

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Sewage sludge was cross-linked with epichlorohydrin to increase its mechanical strength and applicability as an absorbent material. We investigated the effect of the conditions of the cross-linking reaction on the mechanical strength and Cu (II) adsorption capacity of epichlorohydrin cross-linking sewage sludge (ECS). Experimental results showed that cross-linking can raise signifi cantly the mechanical strength of sewage sludge. To improve the adsorption capacity of ECS, carboxymethyl cross-linked sewage sludge (CCS) with maximal adsorption capacity (65mg/g) for Cu (II) was synthesized from ECS by using chloroacetic acid as the etherifi cation agent. The experimental results showed that the adsorption properties of CCS for Cu (II) could best be described by the pseudo-second order model and Langmuir model, and the adsorption mechanism was ion exchange. Our data suggest that CCS is a promising absorbent for removal of heavy metals from wastewater.

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“…However, the cost of activated carbon is too high [3,4], which limits its wide applications in practical industries. In view of this, inexpensive adsorbents have attracted extensive attention around the world in the past decades [5,6].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Heavy Metals by Adsorbents from Food Waste Residue

FAN¹,

ZHANG²

2015

JRST

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Food waste residue is an intractable problem worldwide. The current study discussed the potential of adsorbents prepared from food waste residue (AFWR) for heavy metal removal from wastewater. The microstructure of AFWR was characterized, and kinetic studies on the simultaneous adsorption of Pb 2+ , Cu 2+ , Zn 2+ and Cd 2+ ions from aqueous solutions by AFWR were carried out. It was found that the adsorption of all heavy metals followed a pseudo-second-order kinetics, so that there was a competitive adsorption for Pb 2+ , Cu 2+ , Zn 2+ and Cd 2+ . According to the experimental results, the adsorption in competition beads with the heavy metals presented an order of Cu 2+ > Pb 2+ > Zn 2+ > Cd 2+ .

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Adsorption of copper(II) onto sewage sludge-derived materials via microwave irradiation

Cited by 59 publications

References 49 publications

Chemical forms and risk assessment of heavy metals in sludge-biochar produced by microwave-induced low temperature pyrolysis

Chemical forms and risk assessment of heavy metals in sludge-biochar produced by microwave-induced low temperature pyrolysis

Preparation and Cu (II) Adsorption Characteristics of Carboxymethyl Cross-Linked Sewage Sludge

Adsorption of Heavy Metals by Adsorbents from Food Waste Residue

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