Waste Disposal & Sustainable Energy最新文献

{"title":"Antifouling ultrafiltration membranes based on acrylic fibers waste/nanochitosan for Congo red and crystal violet removal","authors":"Ahmed E. Abdelhamid, Salah E. Selim, Gamal A. Meligi, Ahmed I. Hussain, Mahmoud A. Mabrouk","doi":"10.1007/s42768-024-00208-z","DOIUrl":"https://doi.org/10.1007/s42768-024-00208-z","url":null,"abstract":"<p>In this study, acrylic fibers waste blended with different ratios of nanochitosan (0.5%, 1%, 2% and 4%, in weight) were converted into antifouling ultrafiltration nanocomposite membranes using a phase separation technique for the remediation of Congo red (CR) and crystal violet (CV) dyes from water. The fabricated nanocomposite membranes were investigated using Fourier Transform Infrared (FTIR), thermal gravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscope (SEM). The membrane hydrophilicity was estimated using contact angle measurements, which revealed that the 4% loaded nanochitosan had the highest hydrophilicity. Additionally, the water uptake, porosity, water contact angle and water flux of the nanocomposite membranes were assessed. The membrane filtration performances were explored for the removal of CR and CV as anionic and cationic dyes, respectively, at different concentrations and various applied pressures (1 bar to 4 bar). The experimental data revealed a high rejection (<i>R</i>) performance for CR (<i>R</i>≃100%) with a high water flux of about 150 L/(m²·h) to 183 L/(m²·h) for the optimized membrane with 2% nanochitosan at an applied pressure of 4 bar. The rejection for CV showed a variant rejection (70%–99%) at different dye concentrations with fluxes ranging from 93.6 L/(m²·h) to 149.5 L/(m²·h) for the same composite membrane. The composite membrane showed enhanced flux recovery after fouling by bovine serum albumin and was resistant to widespread gram-positive (<i>Staphylococcus aureus</i>) bacteria.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing methane production in anaerobic co-digestion of food wastes and sewage sludge: roles of different types of iron amendments","authors":"Roghayeh Karimirad, Liwen Luo, Jonathan W. C. Wong","doi":"10.1007/s42768-024-00207-0","DOIUrl":"https://doi.org/10.1007/s42768-024-00207-0","url":null,"abstract":"<p>Iron element is known to be an effective additive for accelerating the anaerobic digestion (AD) process for treating organic wastes. However, the effects of different kinds of iron additives on food waste (FW) and sewage sludge of co-digestion process have not been yet investigated thoroughly. This study aimed to elucidate how different kinds of iron components affect methane production during FW and sewage sludge anaerobic co-digestion (co-AD) process and to investigate the possible mechanism of Fe amendment. Experimental results revealed that Fe amendment could effectively promote the substrate degradation and methane production, and FeCl₃ amended group presented the best digestion performance, boosting the methane production from 465.9 mL to 2650.4 mL. The results of the excitation-emission matrix fluorescence spectra analysis further supported that Fe supplements facilitated the waste hydrolysis with a higher concentration of dissolved organic matters and thereby more substrates can be used for methane generation. In addition, the activity of coenzyme F420 and direct interspecies electron transfer in FeCl₃ group were 5.82 and 5.89 times higher than those in the control group, respectively, indicating that electron transfer, particularly the interspecies one, was enhanced by Fe amendment. As compared to that in the control group, the increased cytochrome <i>c</i> concentration in Fe amended groups also proved it. Therefore, this study will provide a reference regarding Fe amendment in the co-AD process for FW and sewage sludge.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141943355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A two-stage strategy combining vermicomposting and membrane-covered aerobic composting to achieve value-added recycling of kitchen waste solid residues","authors":"Nan Hu, Zhenye Tong, Fei Li, Xia Zhang, Haofeng Gao, Jun Zhou","doi":"10.1007/s42768-024-00206-1","DOIUrl":"https://doi.org/10.1007/s42768-024-00206-1","url":null,"abstract":"<p>Kitchen waste solid residues (KWSR) are secondary organic solid wastes generated from kitchen waste (KW) after oil and slurry separation. In this study, two recycling methods for KWSR were investigated: direct membrane-covered aerobic composting (T1) and a two-stage method combining vermicomposting with membrane-covered aerobic composting (T2). Compared with T1, T2 had a faster increase in pile temperature, a shorter thermal stage, lower greenhouse gas emissions and higher NH₃ emissions. The vermicomposting promoted the formation of humus and shortened the maturation time during aerobic composting, resulting in a shorter treatment period for T2 (18 d) than for T1 (21 d). The initial bacterial communities of T1 and T2 were significantly different, but they became similar as composting progressed. The economic feasibility analysis showed that 1000 kg of KWSR generated a profit of 285 CNY using the T2 method, which was higher than that of T1 (36 CNY). The outcomes of the present study provide an improved strategy for the management of KWSR.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"185 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Slum dynamics: the interplay of remittances, waste disposal and health outcomes","authors":"Md Abdul Bari, Mohammad Ajmal Khuram, Ghulam Dastgir Khan, Yuichiro Yoshida","doi":"10.1007/s42768-024-00202-5","DOIUrl":"https://doi.org/10.1007/s42768-024-00202-5","url":null,"abstract":"<p>Slum dwellers often fail to expend enough on waste disposal to have a healthy life, and remittances provide funds for a household to expend on the betterment of life conditions. This paper examines the impact of remittances on total monthly waste disposal expenditures and the impact of better waste disposal on monthly health expenditures among slum households in Bangladesh. Propensity score matching was adopted as an identification strategy to reduce selection bias. In this study, remittance includes both remittances received from within and outside Bangladesh. Remittance receipt equals 1 if a household receives remittances from within and/or outside of Bangladesh. Our results show that remittances increase expenditures on waste disposal by 28.77% to 32.74% among slum households in Bangladesh. Waste disposal expenditure is considered as an indicator of better waste disposal. Furthermore, we find that better waste disposal reduces total outpatient expenditures. A reduction in outpatient expenditure indicates that waste disposal results in better health conditions for slum dwellers. The findings of this study can be connected to Sustainable Development Goal 11, which targets sustainable cities and communities and suggests that remittances are a bottom-up financial mechanism for improving waste disposal at the micro level to improve health status.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review on graphite carbon nitride (g-C3N4)-based composite for antibiotics and dye degradation and hydrogen production","authors":"Saddam Husein, Slamet, Eniya Listiani Dewi","doi":"10.1007/s42768-024-00198-y","DOIUrl":"https://doi.org/10.1007/s42768-024-00198-y","url":null,"abstract":"<p>This paper reviews recent advances in the use of graphite carbon nitride (g-C₃N₄)-based composite photocatalysts for antibiotic and dye degradation and hydrogen production. It also discusses the structure, synthesis, modification, morphology, doping, preparation, and application of a particular subject and evaluates the advantages and disadvantages of different morphologies and preparation processes. The photocatalysts based on g-C₃N₄-based composites have demonstrated great potential. The g-C₃N₄ has been modified and tailored into various novel structures and morphologies to improve its efficiency in the photocatalytic degradation of pollutants. The techniques such as doping, metal deposition, heterojunction formation, and structural tuning enhance the rate of light absorption, charge transfer, and charge separation of g-C₃N₄. This leads to improved photocatalytic performance for antibiotic and dye degradation and hydrogen production.</p>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141509873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functionalizing carbon nanofibers with chicken manure to catalyse oxygen reduction reaction in a fuel cell","authors":"Prabhsharan Kaur, Veerpal Kaur, Gaurav Verma","doi":"10.1007/s42768-024-00203-4","DOIUrl":"https://doi.org/10.1007/s42768-024-00203-4","url":null,"abstract":"<p>Chicken manure (CM) is one of the most common animal wastes produced worldwide. The conventional application of CM is as a fertilizer; however, in the present study, we introduce an approach for the straightforward and affordable use of CM for fuel cell applications. It reports the functionalization of carbon nanofibers (CNFs) using CM to confer multiple functionalities. The elements that make up the functionalized CNF are nitrogen (7.40%, atoms ratio, the same below), oxygen (6.22%), phosphorous (0.30%), and sulfur (0.02%), etc., according to energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy studies. It has been verified that following treatment with CM, the morphology of the CNFs remains the same. The CM-modified CNFs exhibit a higher electrocatalytic activity (onset potential: −0.0756 V; limiting current density: 2.69 mA/cm²) for the oxygen reduction reaction (ORR) at the cathode of a fuel cell. The electron transfer number for this sample is 3.68, i.e., the ORR favours a four-electron pathway like Pt/C. The direct method of functionalizing the CNF is more effective; however, treatment of CNFs with Triton X-100 prior to functionalization shields their otherwise exposed open edge sites and in turn affects their ORR activity. A large surface area (99.866 m²/g), the presence of multiple functional elements (oxygen, nitrogen, phosphorous, sulfur, etc.), surface charge redistribution and induced donor–acceptor interactions at the surface of CM-modified CNFs contribute to their enhanced electrochemical activity. This preliminary study reports the suitability of a facile and economical approach for treating CM for the most advanced clean energy applications. Hopefully, this study will pave the way for cutting-edge methods for handling other biowaste materials as well.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on heat dissipation optimization and energy conservation of supercapacitor energy storage tram","authors":"Yibo Deng,&nbsp;Sheng Zeng,&nbsp;Chushan Li,&nbsp;Ting Chen,&nbsp;Yan Deng","doi":"10.1007/s42768-024-00196-0","DOIUrl":"10.1007/s42768-024-00196-0","url":null,"abstract":"<div><p>Uneven heat dissipation will affect the reliability and performance attenuation of tram supercapacitor, and reducing the energy consumption of heat dissipation is also a problem that must be solved in supercapacitor engineering applications. This paper takes the vehicle supercapacitor energy storage power supply as the research object, and uses computational fluid dynamics (CFD) simulation to calculate its internal temperature distribution to solve the problem that the internal heat dissipation of the power supply in the initial design scheme is not uniform, and the maximum temperature of cell capacitors is as high as 67 °C. Filling of heat-conducting silicone film between single cell capacitors inside the module can conduct heat from single cell capacitor in the center of the module to the edge of the module quickly; adding baffles in the cabinet can optimize the air duct, and the temperature between the modules can be uniform; as a result of the combined effect of the two optimization measures, the maximum temperature of the cell capacitors drops to 55.5 °C, which is lower than the allowable operating temperature limit of the capacitor cell 56 °C. For the first time, the scheme of using air-conditioning waste exhaust air to cool supercapacitor energy storage power supply is proposed. Compared with the traditional cooling scheme using special air conditioning units, each energy storage system can save 967.16 kW·h per year using air-conditioning waste exhaust cooling, effectively reducing the overall energy consumption of the vehicle.</p></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"6 3","pages":"419 - 427"},"PeriodicalIF":0.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141532595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovations in food waste management: from resource recovery to sustainable solutions","authors":"Na Xiao,&nbsp;Lingxian Kong,&nbsp;Mengmeng Wei,&nbsp;Xiufang Hu,&nbsp;Ou Li","doi":"10.1007/s42768-024-00201-6","DOIUrl":"10.1007/s42768-024-00201-6","url":null,"abstract":"<div><p>Food waste (FW) constitutes a significant portion of municipal solid waste (MSW) and represents an underutilized resource with substantial potential for energy generation. The effective management and recycling of FW are crucial for mitigating environmental issues and minimizing associated health risks. This comprehensive review provides an in-depth overview of current technological applications for converting FW into energy with the dual goals of reducing environmental impact and maximizing resource utilization. It covers various aspects, including pretreatment methods, biological technologies (e.g., anaerobic digestion and fermentation), and thermal technologies (e.g., incineration, pyrolysis, gasification, and hydrothermal carbonization). The analysis includes the scope, advantages and disadvantages of these techniques. Landfilling, composting, and incineration are widely considered the most prevalent methods of FW disposal and have substantial negative impacts on the environment. Advanced technologies such as anaerobic fermentation offer environmental benefits and are suitable for scaling up, reducing greenhouse gas emissions, and producing renewable energy such as biogas, thus reducing carbon emissions. The promotion and adoption of advanced technologies like anaerobic fermentation can contribute to more sustainable FW management practices, reduce environmental impacts, and support the transition to a circular economy. Additionally, this article presents successful case studies, emphasizing the importance of technological integration in FW treatment. Furthermore, this article outlines future directions for FW treatment, including advancements in biological treatment technologies, decentralized treatment systems, and the adoption of digital and data-driven FW management systems. These emerging trends aim to promote sustainable, resource-efficient, and environmentally responsible FW management practices.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"6 3","pages":"401 - 417"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive analysis of pyrolysis in medical rubber gloves: pyrolysis characteristics, kinetics, thermodynamics, volatile products, and pathways","authors":"Xianbo Qu,&nbsp;Yanlong Li,&nbsp;Xiaojuan Zhang,&nbsp;Rundong Li","doi":"10.1007/s42768-024-00197-z","DOIUrl":"10.1007/s42768-024-00197-z","url":null,"abstract":"<div><p>The surge in medical waste, fueled by the impact of COVID-19 and the influenza A virus, poses substantial challenges to waste treatment. Nevertheless, pyrolysis technology introduces a novel approach to the treatment of medical waste. This study investigated the pyrolytic characteristics, kinetics, thermodynamic parameters, volatile gases, and pyrolytic pathways of medical rubber gloves (MRGs) in a N₂ atmosphere utilizing Thermal Gravimetric Analyzer (TGA), Thermogravimetric-Fourier transform infrared spectroscopy (TG-FTIR) and Pyrolysis gas chrogams-mass spectrometry (Py-GC/MS) analyses. Pyrolysis of MRG predominantly occurs between 284–501 °C and 613–701 °C. The initial stage is the primary reaction phase, exhibiting an average activation energy of 339.77 kJ/mol, following the reaction order model (<i>F</i>n). The second pyrolysis stage has an average activation energy of 236.93 kJ/mol and adheres to the geometric contraction model (<i>R</i>n). The volatile products from MRG pyrolysis primarily comprise olefins, alkanes, and aromatic hydrocarbons. The olefins consist primarily of 1,2-pentadiene and <span>d</span>-limonene, while the alkanes include cyclopropane, cyclohexane, and 1,4-dimethyl. Aromatic compounds are chiefly benzene, toluene, and xylene.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"6 3","pages":"297 - 308"},"PeriodicalIF":0.0,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced photothermal catalysis for CO2 reduction with H2O by amphoteric metal oxides modified TiO2","authors":"Wenhui Huang,&nbsp;Li Zhang,&nbsp;Jianan Hong,&nbsp;Hongfen Mo,&nbsp;Chenyu Xu,&nbsp;Yanwei Zhang","doi":"10.1007/s42768-023-00185-9","DOIUrl":"10.1007/s42768-023-00185-9","url":null,"abstract":"<div><p>Due to competitive adsorption between CO₂ and H₂O, hydrogen evolution reaction reacts easily in the photothermal CO₂ reduction. Herein, the amphoteric oxide loaded on TiO₂ catalyst was prepared to enhance CO₂ adsorption as well as improve the photo-responsive properties. The samples with 10% mass fraction of ZnO loaded on TiO₂ exhibited the best photothermal catalytic performance. The average yields of H₂, CO and CH₄ were estimated to be 35.7, 43.5, and 5.7 μmol/(g·h), respectively. Also, the selectivity of carbon-containing products increased from 28.9% to 48.8% when compared to P25. The loading of amphoteric oxides can act as adsorption sites on the material surface to adsorb acidic molecules of CO₂ for reaction, improving the selectivity of carbon-containing products. In addition, amphoteric oxides are good semiconductors, which can improve the photo-responsive properties of the catalyst and form heterostructures with TiO₂ to promote the separation of photogenerated electron–hole pairs, allowing more photo-generated carriers to participate in the reaction. Finally, both functions including CO₂ adsorption and solar light absorption could be realized on the all-in-one amphoteric oxide loaded on TiO₂ component.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"6 3","pages":"309 - 321"},"PeriodicalIF":0.0,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140969682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}