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Efficient Recovery of Solid Wastes for Sustainability

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Materials".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 2084

Special Issue Editors

School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
Interests: functional materials derived from solid wastes; biochar; wastewater treatment; waste management; recycling of solid wastes
Special Issues, Collections and Topics in MDPI journals
Key Laboratory of Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, China
Interests: efficient recovery of minerals resources; high-value materials derived from minerals
Special Issues, Collections and Topics in MDPI journals
School Minerals Proceesing & Bioengineering, Central South University, Changsha 410083, China
Interests: solid waste treatment; utilization of tailings and leaching residues; recover of metals from solid waste
College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350002, China
Interests: recycling of waste plastic and secondary pollution control
School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
Interests: solid waste treatment; adsorption and advanced oxidation technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As a result of the processes of industrial production and daily life, a huge amount of solid wastes are being generated annually all over the world. The management of solid wastes has been a challenging problem that is gaining increasing global attention. Solid wastes cause serious environmental pollution and pose a significant threat to human health due to the presence of toxic substances. From the aspect of resources, there exist massive valuable components in solid wastes. Increasingly more efforts are being devoted to the recovery of solid wastes, with benefits in reducing environmental pollution and increasing resource recycling. Although various strategies have been proposed for the recovery of solid wastes, there still exists big gaps between the current studies and industrial applications. Therefore, more innovative studies are required for efficient recovery of solid wastes for sustainability.

The present Special Issue entitled “Efficient Recovery of Solid Wastes for Sustainability” aims to cover the latest advances along with future perspectives in the field of waste management. The scope of the Special Issue includes but is not limited to the following topics:

  1. Recovery of valuable components from solid wastes
  2. Innovative synthesis of high-value materials from solid wastes
  3. Integrated approaches for waste management and resource recovery
  4. Green strategies of “waste treating waste”
  5. Sustainability and circular economical aspects of recovery of solid waste

Prof. Dr. Chongqing Wang
Prof. Dr. Longhua Xu
Prof. Dr. Zhiguo He
Prof. Dr. Yongjin Luo
Prof. Dr. Lingjun Kong
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • solid wastes
  • waste management
  • sustainability
  • functional materials
  • metal extraction

Published Papers (1 paper)

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Research

12 pages, 2482 KiB  
Article
Adsorption of Toxic Zinc by Functionalized Lignocellulose Derived from Waste Biomass: Kinetics, Isotherms and Thermodynamics
by Jiatao Dang, Hui Wang and Chongqing Wang
Sustainability 2021, 13(19), 10673; https://0-doi-org.brum.beds.ac.uk/10.3390/su131910673 - 26 Sep 2021
Cited by 7 | Viewed by 1381
Abstract
Heavy metals pollution receives worldwide attention due to great toxicity, significant bio-accumulation and non-biodegradability. Adsorption is a promising technique for removing heavy metals from wastewater. Adsorption of zinc (Zn(II)) from aqueous solution was investigated by functionalized lignocellulose derived from fallen leaves. Alkalized lignocellulose [...] Read more.
Heavy metals pollution receives worldwide attention due to great toxicity, significant bio-accumulation and non-biodegradability. Adsorption is a promising technique for removing heavy metals from wastewater. Adsorption of zinc (Zn(II)) from aqueous solution was investigated by functionalized lignocellulose derived from fallen leaves. Alkalized lignocellulose (AC), xanthated lignocellulose (XC) and carboxylated lignocellulose (CC) were characterized by Fourier transform infrared spectrum (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The effect of sorbent dosage, solution pH, sorption time and initial Zn(II) concentration on Zn(II) sorption was investigated by single-factor experiment. Sorption kinetics, isotherms and thermodynamics were examined to reveal sorption mechanism. The sorption capacity and removal rate remarkably depend on experimental variables. Zn(II) sorption onto AC, XC and CC is well described by the pseudo second order kinetics and Langmuir isotherm. The sorption process is fast, reaching sorption equilibrium at 30 min. The maximum sorption capacity of Zn(II) onto CC is 46.49 mg/g, higher than that onto AC, XC and other reported sorbents. Thermodynamic parameters indicate that Zn(II) sorption is a spontaneous process. Sorption mechanism is majorly attributed to surface complexation. This work shows the feasibility of removing toxic Zn(II) from aqueous solution by locally available biomass, providing a sustainable approach for wastewater treatment. Full article
(This article belongs to the Special Issue Efficient Recovery of Solid Wastes for Sustainability)
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