Pulsed stirring for energy efficiency improvements during electrodialytic extraction of As, Cd, Cr, Cu, Pb, and Zn from municipal solid waste incineration fly ash and air pollution control residue

Li, Huilin; Kirkelund, Gunvor Marie

doi:10.1016/j.seppur.2022.120835

Cited by 5 publications

(3 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the multilayer plastic films used to make food packaging boxes are extremely difficult to recycle due to their intricate compositions and the incompatibility of their various polymer layers. Additionally, the inherent contaminant nature of colored PET deters its suitability to undergo chemical recycling [79]. To address this challenge, innovations such as STRAP have been developed to generate solvent systems for recycling multilayer polymers through selective dissolution.…”

Section: Waste Management-usage Stage (Recycling)mentioning

confidence: 99%

Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

et al. 2023

View full text Add to dashboard Cite

The idea of a circular economy (CE) has gained ground over the past ten years as a means of addressing sustainable development and getting around the limitations of the current and linear dominant production and consumption patterns. The primary goal of a CE is to encourage the adoption of closing-the-loop production methods to improve resource use efficiency, modify chemical processes, and increase product and material lifespan. According to the 2030 Agenda for Sustainable Development, which focuses on 17 Sustainable Development Goals, 14 of which call for the appropriate application of green chemistry (GC) concepts and patterns, the role that chemistry may play in the shift toward more sustainable models is critical. By serving as the foundation for novel products made from renewable feedstocks and designed to be reused, recycled, or recovered with the associated minimum energy requirements, green and sustainable chemistry could be the key to unlocking the economic potential of the CE toward new product design and ultimately solving waste management problems. The aim of this perspective paper, while using a variety of literature sources, is to essentially capture the main issues associated with the CE and GC paradigms and how these two approaches can merge toward sustainable business models and the production of new materials. This integration focuses on reducing waste, conserving resources, and minimizing negative environmental impacts, while also considering economic viability. However, the obstacles to achieving implementation of the CE and GC principles are investment, environmental education, and legislation. To advance toward the circular economy and green chemistry, international agreements should be reconsidered to provide an appropriate framework, including the creation of incentives for businesses and individuals to adopt circular practices, the establishment of education programs to promote the benefits of circular practices, and the development of regulations to support the transition to sustainable production and consumption patterns.

show abstract

Section: Waste Management-usage Stage (Recycling)mentioning

confidence: 99%

Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

et al. 2023

View full text Add to dashboard Cite

show abstract

“…When the contaminated material is applied with an electric field, the material is gradually acidified and the limiting current is very low due to the decomposition of water on the anion exchange membrane. An applied electric field causes charged species, or ions, to migrate to oppositely charged electrodes; during this process, metals and other elements concentrate in the electrolyte. − Furthermore, the ion exchange membrane ensures the use of electric current to move ions in the medium without supplying new ions from the electrolyte, thus ensuring the efficient use of energy. Contaminated material is often agitated in an intermediate chamber to prevent deposition of waste material that slows metal extraction. , Moreover, some EDS experiments have shown that the removal of different heavy metals varies, and it was found that the removal of anodes may be due to the complexation reaction of divalent metal ions with chlorides to form stable negatively charged complexes (MeCl 3 – , MeCl 4 2– ) .…”

Section: Treatment and Disposal Of Heavy Metals In Fly Ashmentioning

confidence: 99%

Advances and Outlook of Heavy Metal Treatment Technology from Municipal Solid Waste Incineration Fly Ash: A Review

Xiao,

Huang,

Cheng

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

With the global industrialization process and socioeconomic development, the amount of municipal solid waste (MSW) generated is growing significantly. With the growth trend of municipal solid waste, incineration is widely used for waste treatment but produces a large amount of municipal solid waste incineration fly ash, which contains heavy metals that can seriously harm human health and the ecological environment. In this Review, the current situation of MSWI fly ash disposal is reviewed, and the technologies for harmless disposal and resource utilization of heavy metals in MSWI fly ash are summarized, including solidification stabilization, leaching extraction, heat treatment, combination methods, etc. We meticulously summarized the recent progress of various incineration fly ash disposal technologies, analyzed the difficulties and solutions in formulating various feasible technical strategies, and compared their potential in the safe, environmentally friendly, and economical utilization of MSW fly ash resources. Furthermore, we also provide an outlook on the potential challenges and prospects of future progress in the harmless disposal and resource recycling of fly ash.

show abstract

“…Recently, several investigations have been performed to exploit FA for other applications such as water purification, filtration, adsorption, etc. [ 13 , 14 , 15 , 16 ]. Since FA possesses excellent adsorption properties, it has been used as an adsorbent for the removal of organic pollutants and heavy metal ions from water [ 13 , 17 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Fly Ash-Incorporated Polystyrene Nanofiber Membrane as a Fire-Retardant Material: Valorization of Discarded Materials

et al. 2022

View full text Add to dashboard Cite

Reusing or recycling waste into new useful materials is essential for environmental protection. Herein, we used discarded polystyrene (PS) and fly-ash (FA) particles and a fabricated fly-ash incorporated polystyrene fiber (FA/PS fiber) composite. The electrospinning process produced continuous PS fibers with a good distribution of FA particles. The prepared nanofibers were characterized by state-of-the-art techniques. The performances of the composite nanofibers were tested for fire-retardant applications. We observed that the incorporation of FA particles into the PS fibers led to an improvement in the performance of the composite as compared to the pristine PS fibers. This study showed an important strategy in using waste materials to produce functional nanofibers through an economical procedure. We believe that the strategy presented in this paper can be extended to other waste materials for obtaining nanofiber membranes for various environmental applications.

show abstract

Pulsed stirring for energy efficiency improvements during electrodialytic extraction of As, Cd, Cr, Cu, Pb, and Zn from municipal solid waste incineration fly ash and air pollution control residue

Cited by 5 publications

References 47 publications

Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

Circular Economy and Green Chemistry: The Need for Radical Innovative Approaches in the Design for New Products

Advances and Outlook of Heavy Metal Treatment Technology from Municipal Solid Waste Incineration Fly Ash: A Review

Fly Ash-Incorporated Polystyrene Nanofiber Membrane as a Fire-Retardant Material: Valorization of Discarded Materials

Contact Info

Product

Resources

About