Cu-alginate hydrogels in microfluidic systems: a sustainable catalytic approach for click chemistry
Frontiers in Chemical Engineering
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2d ago
This work explores the innovative use of copper-alginate (Cu-alginate) hydrogels within microfluidic systems to catalyze dipolar cycloaddition reactions, emphasizing green chemistry principles and process intensification. Utilizing naturally occurring biopolymers, such as alginates, provides an environmentally friendly alternative to conventional catalyst supports due to their biocompatibility, biodegradability, and effective metal ion immobilization capabilities. The integration of these biopolymer-based catalysts into microfluidic devices allows for precise control over reaction conditions ..read more
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Biogas enhancement in the anaerobic digestion of thermo-chemically pretreated sludge by stimulating direct interspecies electron transfer by biochar and graphene
Frontiers in Chemical Engineering
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1M ago
It is necessary to pretreat waste-activated sludge (WAS) to disintegrate the sludge matrix and amend its anaerobic digestion (AD) with carbon-based materials (CMs) to accelerate direct interspecies electron transfer (DIET) in order to realize the maximum biogas potential of abundant and habitat-threatening organic WAS. The AD of WAS pretreated thermo-chemically at 0.5% NaOH (g/g dry sludge) and 125 °C microwave irradiation was amended by biochar doses of 0–40 g/L and graphene doses of 50–1,000 mg/L in the batch operation mode. Hybrid pretreatment of WAS deteriorated dewaterabili ..read more
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Matchmaking for industrial symbiosis: a digital tool for the identification, quantification and optimisation of symbiotic potential in industrial ecosystems
Frontiers in Chemical Engineering
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1M ago
Effective waste management is crucial for sustainable industrial operations. This paper introduces a state-of-the-art digital tool designed for the circular economy. Primarily it pinpoints and quantifies symbiotic possibilities between industries with liquid waste streams, emphasising the most lucrative inter-industry connections. In practice, the tool takes in data such as waste stream volumes, material concentrations within these streams, market prices of materials, and industries’ raw material consumption rates. Utilising these, its algorithm identifies and assesses the most profitable mate ..read more
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Systematic conceptual design strategies for the recovery of metals from E-waste
Frontiers in Chemical Engineering
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2M ago
As the consumption of electronics increases worldwide, significant strain is posed on both the availability of mineral resources and the accumulation of waste due to their disposal. Recovering valuable minerals from e-waste can potentially alleviate both. This paper discusses the systematic design of processes for the recycling of waste printed circuit boards (WPCB). After reviewing the relevant processing steps, the generation of processing superstructures is explained. Next, a formulation of the optimization problem is presented to identify the best processing pathway, and the use of process ..read more
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Simulation of temporary plugging agent transport and optimization of fracturing parameters based on fiber optic monitoring data
Frontiers in Chemical Engineering
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2M ago
Temporary plugging and fracturing is an important technology for the efficient development of unconventional reservoirs. Due to the diverse physical properties of unconventional reservoirs and the complex stress environment, the evaluation of temporary plugging effect needs to consider the working conditions in the wells, and it also needs to focus on the transport and placement of temporary plugging agent in the near-well fracture region, so it is impossible to predict the effect of temporary plugging and fracturing effectively. In this paper, a numerical simulation study is carried out to in ..read more
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Editorial: Bioprocess designing towards clean energy production from industrial wastewater
Frontiers in Chemical Engineering
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2M ago
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Editorial: Dry powder coating in manufacturing processes
Frontiers in Chemical Engineering
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2M ago
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Performance of removing aqueous contaminant by zirconium based adsorbents: a critical review
Frontiers in Chemical Engineering
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2M ago
The studies on materials for decontamination in aqueous solutions have increasingly received greater attentions. Such contaminants as heavy metals, arsenic, fluoride and phosphate are harmful to humans and aqueous species due to higher toxicity. Zirconium based adsorbents have become more attractive due to outstanding performance in decontamination. This article provides a comprehensive review of the performance and mechanisms of five types adsorbents: zirconium (hydro)oxides, zirconium hydrogen sulfate, zirconium based multiple metal typed adsorbents and zirconium impregnated complexes. The p ..read more
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The integrated microfluidic photocatalytic planar reactor under continuous operation
Frontiers in Chemical Engineering
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3M ago
An integrated microfluidic planar reactor is essential for achieving efficient and enhanced photocatalytic water treatment. Optimization of catalysts is an area of intense study owing to the need to enhance the performances of microreactors. A high-efficiency photocatalytic microreactor is presented here by combining a planar microreactor with a high-efficiency photocatalyst. TiO2 nanoparticles doped with Y and Yb were prepared to improve the photocatalytic reaction efficiency. First, better performance is achieved with the Y, Yb/TiO2 and TiO2 microreactors than conventional bulk reactors beca ..read more
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The effect of 1-deoxynojirimycin isolated from logging residue of Bagassa guianensis on an in vitro cancer model
Frontiers in Chemical Engineering
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3M ago
Introduction:Bagassa guianensis Aubl, a tree widely distributed in Brazil, significantly contributes to the furniture industry. Notably, it harbors the bioactive compound 1-deoxynojirimycin (1-DNJ), which is retrievable from timber residues and retains activity even days after wood extraction. This makes Bagassa guianensis a promising biological resource for anticancer therapy and pharmacology studies. This study delves into the in vitro antineoplastic actions of 1-DNJ, focusing on adenocarcinoma gastric cell lines (ACP02) and glioblastoma (A172).Methods: The effect of 1-DNJ on cell viability ..read more
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