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Ecological Utilization of Industrial Wastes
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Ecological Utilization of Industrial Wastes

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

Deadline for manuscript submissions: closed (1 May 2023) | Viewed by 2540

Special Issue Editors

Dr. Liyun Yang

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Guest Editor
Department of Ecological Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: industrial solid waste recycling technology research and development; industrial air pollution and source analysis analysis; industry and industrial park linkage and evaluation; industrial production
Prof. Dr. Tetsuya Nagasaka

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Guest Editor
Department of Metallurgy, Graduate School of Engineering, Tohoku university, Sendai 980-7579, Japan
Interests: high-temperature physical chemistry; material stock and flow analysis; life cycle assessment; materials process engineering
Prof. Dr. Hao Bai

E-Mail Website
Guest Editor
Department of Ecological Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Interests: system analysis and model of industrial process; synthesis of functional materials for energy and environment; ecological utilization of industrial solid wastes

Special Issue Information

Dear Colleagues,

The demands of human life and the development of the economy promote large-scale indusrial production. However, in the process of industrial production, due to the consumption of resources and energy, a large volume of industrial waste is generated, such as tailing, slag, dross and fly ash. The massive storage of these industrial wastes will pollute soil and water and cause potential environmental risks. Therefore, it is neccessary to utilize industrial wastes as resources. At present, a lot of research has been carried out on the utilization of industrial waste, such as in the preparation of building materials. However, there are still a large number of newly generated and stockpiled industrial solid wastes, so the need to develop new technologies that can be used on a large scale is an urgent one. There is a wide range of contaminated water and soil in the world that need to be treated, and the polluted gases generated in the process of industrial production, such as CO2, SO2 and NOx, need to be removed. Thus, industrial solid waste can be directly used and synthesized for various functional materials, such as environmental remediation agents according to their chemical composition and structural characteristics, which can not only provide a new avenue for the large-scale application of industrial wastes, but also supply cheap materials for a wide range of environmental treatments.

The aim of this Special Issue is to focus on new methods for the ecological utilization of industrial solid waste, studying waste characteristics and the synthetic mechanism of environmental remediation agents using waste as a raw material, investigating the treatment efficiency and mechanism of waste applied to contaminated water, soil and gas, reviewing ecological factor changes after waste is applied to the environment, and researching waste management and novel evaluation models of waste application processes. Thus, the Issue will provide a theoretical foundation for the realization of industrial solid waste as environmental treatment materials and practical industrial production applications. The contribution of papers regarding the in situ ecological utilization of industrial solid waste are highly encouraged.

Dr. Liyun Yang
Prof. Dr. Tetsuya Nagasaka
Prof. Dr. Hao Bai
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

  • industrial waste
  • ecological utilization
  • soil treatment
  • water treatment
  • gas adsorption
  • waste management
  • evaluation model

Published Papers (2 papers)

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Research

20 pages, 8922 KiB  
Article
Preparation of Slow-Release Fertilizer from Fly Ash and Its Slow-Release and Metal Immobilization Properties
by Yingqin Wang, Hao Chen, Dongyu Tian, Liyun Yang and Hao Bai
Sustainability 2023, 15(14), 11346; https://doi.org/10.3390/su151411346 - 21 Jul 2023
Viewed by 1046
Abstract
In this study, SRPF with metastable KAlSiO4 as the main slow-release substance was prepared by the sintering method using fly ash and K2CO3 as raw materials, and an orthogonal experiment was conducted to optimize the raw material ratio and [...] Read more.
In this study, SRPF with metastable KAlSiO4 as the main slow-release substance was prepared by the sintering method using fly ash and K2CO3 as raw materials, and an orthogonal experiment was conducted to optimize the raw material ratio and preparation parameters of SRPF. The optimum parameters for preparing SRPF are as follows: the potassium carbonate content is 15%; the sintering temperature is 1100 °C; heat preservation time is 60 min; cooling mode is furnace cooling, and the particle size of raw materials is not less than 150 μm. Initial leaching rates in water and 2% citric acid solution were 4.64% and 47.07%, respectively, and cumulative leaching rates at 28 days were 11.17% and 85.86%, respectively, showing that the SRPF prepared from fly ash and K2CO3 meets the standard GB/T 23348-2009 of China. A soil column leaching test was carried out to study the slow-release behavior of SRPF in soil. When the leaching medium is water, the 70-day cumulative leaching rate of SRPF in soil is about 4%, while when the leaching medium is citric acid, depending on the soil type, the 70-day cumulative leaching rate of SRPF can reach 21.2% and 43.5%. The results of the soil column leaching test showed that the total potassium content in the soil was negatively correlated with the slow-release rate of SRPF. Finally, the immobilization effect and mechanism of SRPF on lead ion immobilization was studied, and it was found that SRPF still had a considerable effect on lead ions immobilization. The BET results showed that, compared with fly ash, the BET surface area of SRPF was reduced by 48.3%, the total pore volume was reduced by 16.0%, and the average pore diameter had a small change. The decrease in total pore volume was mainly concentrated in the micropore volume and mesopore volume, which are reduced by 50% and 20% respectively, while the macropore volume hardly changes. In summary, fly ash can be used to prepare SRPF with a good release effect and similar heavy metal ions immobilization ability. Full article
(This article belongs to the Special Issue Ecological Utilization of Industrial Wastes)
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18 pages, 5901 KiB  
Article
CO2 Adsorption Properties of Amine-Modified Zeolites Synthesized Using Different Types of Solid Waste
by Shaojie Li, Shilong Jia, Tetsuya Nagasaka, Hao Bai and Liyun Yang
Sustainability 2023, 15(13), 10144; https://doi.org/10.3390/su151310144 - 26 Jun 2023
Cited by 2 | Viewed by 1082
Abstract
In this study, organic amines were used to modify zeolite NaA and analcime synthesized using fly ash and iron tailing slag as raw materials, respectively, and the adsorption properties of the modified zeolites toward CO2 were determined. We found that when tetraethylenepentamine [...] Read more.
In this study, organic amines were used to modify zeolite NaA and analcime synthesized using fly ash and iron tailing slag as raw materials, respectively, and the adsorption properties of the modified zeolites toward CO2 were determined. We found that when tetraethylenepentamine (TEPA) was used, the modified zeolite NaA and analcime had the highest nitrogen content. The adsorption capacity of the modified zeolite NaA for CO2 was 4.02 mmol/g and that of the modified analcime was 1.16 mmol/g when the adsorption temperature was 70 °C and the CO2 flow rate was 50 mL/min. According to the adsorption isotherm, kinetic, and thermodynamic model fitting, the adsorption surface of the modified zeolite was not uniform, and the CO2 adsorption of the modified zeolites was classified as chemical adsorption. In a mixed atmosphere of 15% CO2/85% N2, the dynamic selection coefficients of the modified zeolite NaA and analcime for CO2 were 3.8942 and 2.9509, respectively; thus, the two amine-modified zeolites had good selectivity for CO2. After five cycles, the adsorption efficiencies of the modified zeolite NaA and modified analcime for CO2 were 92.8% and 89%, respectively. Therefore, the two amine-modified zeolites showed good recycling performance. Full article
(This article belongs to the Special Issue Ecological Utilization of Industrial Wastes)
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