Waste Management Bulletin最新文献

{"title":"Assessment of the potential of oily sludge char for removing organics from petroleum refinery wastewater","authors":"Deborah Cristina Crominski da Silva Medeiros ,&nbsp;Muhammad Usman ,&nbsp;Pamela Chelme-Ayala ,&nbsp;Suhur Saeed ,&nbsp;Ismail Al-Shaikh ,&nbsp;Asfaw Bekele ,&nbsp;Mohamed Gamal El-Din","doi":"10.1016/j.wmb.2024.12.001","DOIUrl":"10.1016/j.wmb.2024.12.001","url":null,"abstract":"<div><div>Oil sludge (OS), a by-product of petroleum refinery (PR) waste, contains various toxic organic and inorganic compounds. Improper handling of OS poses serious environmental risks, highlighting the need for an effective and sustainable solution to mitigate these hazards and transform OS into a valuable product. This study converted OS into char-(OSC), including both pristine-OSC and ZnCl₂-activated-OSC, for the removal of organic pollutants from refinery wastewater (WW) with a high COD concentration (89,233 mg/L). ZnCl₂-activated-OSC produced at 400 °C (SB-Zn-400) showed superior adsorption capacity compared to pristine-OSC, due to enhanced oxygen-containing functional groups, crystallinity, thermostability, and superior degradation (OS). The adsorption process demonstrated rapid COD removal, reaching equilibrium within 2 h and achieving a 28 % reduction in COD. The adsorption capacity was found to be 420.5 mg-COD/g-OSC. SB-Zn-400 exhibited heterogeneous surface properties and supported multi-layer adsorption, with hydrogen-bonding and π–π interactions likely adsorption mechanisms. Moreover, the total concentration of organic compounds in PR-WW was &gt;2700 mg/L, and SB-Zn-400 reduced this concentration to 34 mg/L, achieving &gt;98 % removal. Although the adsorption treatment reduced the inorganic parameters of PR-WW, leaching of Mn, Ni, and Zn was observed, likely due to the nature of OS and the ZnCl₂-activation process. Thermal regeneration of spent SB-Zn-400 allowed the reuse of OSC, with adsorption efficiency remaining higher than that of pristine-OSC, indicating that SB-Zn-400 has potential to be reused. These findings highlight the effectiveness of OSC in treating PR-WW, supporting a circular economy approach to enhance resource efficiency and minimize the environmental impact of OS from PR industries.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"3 1","pages":"Pages 17-26"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143153780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A literature review on green supply chain management for sustainable sourcing and distribution","authors":"Dharmendra Hariyani ,&nbsp;Poonam Hariyani ,&nbsp;Sanjeev Mishra ,&nbsp;Milind Kumar Sharma","doi":"10.1016/j.wmb.2024.11.009","DOIUrl":"10.1016/j.wmb.2024.11.009","url":null,"abstract":"<div><div>Due to increasing environmental awareness and legislation, green supply chain management (GSCM) is essential for organizations. Despite significant research on GSCM principles, there is limited clarity on their specific application to sustainable sourcing and distribution. The research aims to clarify the core principles of GSCM, differentiate sustainable sourcing and distribution concepts, evaluate theoretical frameworks guiding GSCM practices, investigate recent innovations, and identify challenges and barriers to GSCM. This review explores GSCM with a focus on sustainable sourcing and distribution by utilizing the Scopus database. The database is searched from Jan 17th, 2024 to August 25th, 2024. By employing Title-ABS-Key (“green supply chain management” and “sustainable sourcing” or “sustainable distribution” or “framework” or “model” or “innovation” or “challenges” or “barriers”) search, the review includes 266 papers from period 1997 to 2024. The review delves into key theoretical frameworks such as the triple bottom line, stakeholder theory, and resource-based view, etc. and discusses their application in the context of GSCM. Findings show that (i) technological advancements like blockchain, IoT, AI, and big data analytics enhance transparency, optimize logistics, and reduce environmental impact, (ii) material innovations viz. bioplastics and recycled resources promote a circular economy and resource conservation, and (iii) supplier engagement through training, incentives, and collaboration foster sustainable practices. For green distribution, eco-friendly packaging, green transportation, and energy-efficient warehousing are important. The review also illustrates the best practices for the GSCM. The paper also addresses challenges including financial barriers, technological limitations, regulatory constraints, and cultural resistance.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 231-248"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics and removal of organic micropollutants in reverse osmosis concentrate from urban wastewater treatment plants: A review","authors":"Maitri Patel,&nbsp;M. Mansoor Ahammed","doi":"10.1016/j.wmb.2024.11.012","DOIUrl":"10.1016/j.wmb.2024.11.012","url":null,"abstract":"<div><div>The use of reverse osmosis (RO) in urban wastewater treatment plants is becoming popular due to its efficiency in producing high-quality effluent suitable for various reuse applications. However, the process generates reverse osmosis concentrate (ROC) or reject as a byproduct, which poses significant environmental concerns. One of the primary issues with ROC is the presence of organic micropollutants (OMPs). These pollutants are found in substantial concentrations in reject water, raising concerns about their potential ecological and health impacts. This review provides a summary of the characteristics of ROC from urban wastewater treatment plants, focusing on the concentrations and types of OMPs present. The study shows that ROC contains a variety of dissolved organic compounds, dissolved ions, and organic micropollutants, making its treatment a challenge. The paper discusses various technologies studied for the removal of OMPs in ROC, including adsorption, advanced oxidation processes (AOPs), and other methods. Adsorption is identified as an effective method for the removal of OMPs, although some compounds show lower removal efficiencies. AOPs also have good removal capabilities but at the cost of forming potentially harmful byproducts. Emerging technologies such as forward osmosis combined with adsorption, constructed wetlands, and other microbial processes show promise but require further research for practicality. This paper thus underscores the necessity for continued innovation and optimization in ROC treatment methods to mitigate the adverse effects of OMPs on the environment and public health.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 249-260"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Waste to wealth: Microbial-based sustainable valorization of cotton biomass, processing waste and by-products for bioenergy and other value-added products to promote circular economy","authors":"Ajinath Dukare ,&nbsp;Rahul Yadav ,&nbsp;Sheshrao Kautkar ,&nbsp;Pandiyan Kuppusamy ,&nbsp;Kanika Sharma ,&nbsp;Anam Shaikh ,&nbsp;Anagha Pawar ,&nbsp;Amruta Gadade ,&nbsp;Nadanathangam Vigneshwaran ,&nbsp;Sujata Saxena ,&nbsp;Sujeet Kumar Shukla","doi":"10.1016/j.wmb.2024.11.011","DOIUrl":"10.1016/j.wmb.2024.11.011","url":null,"abstract":"<div><div>Cotton-based textile industries sustain millions of people’s livelihoods and are significant sources of revenue for the nation’s economy. The enormous amount of biomass, processing wastes, and byproducts generated during cotton processing are usually landfilled or incinerated, which is the cause of environmental pollution and health hazards. Cotton biomass, mainly comprised of cellulose, hemicellulose, and lignin, represents a sustainable feedstock for the fermentative production of value-added bioproducts using microorganisms. Advances in microbial biotechnology have led to the effective valorization of cotton biomass and processing waste into valuable products. To date, cotton-based waste biomaterial has been utilized for microbial production of biofuel, hydrogen, biomethane, enzymes, organic acids, bio-enriched compost, and as a substrate for mushroom cultivation. Furthermore, the use of cotton biomass for developing fungal mycelial-based composite and eco-friendly packaging material is documented. Cotton seed meal, an essential byproduct of the cottonseed industry, is converted into more proteinous products and bioactive peptides via microbial-mediated degossypolization and fermentation. The potential of modern metabolic engineering tools such as gene sequencing and assembly, genome editing, clustered regularly interspaced short palindromic repeats (CRISPR), and cell surface engineering for microbial strain development is summarized. This is the first comprehensive review highlighting the aspects of cotton biomasses and byproducts, their structural composition, pretreatment strategies, and microbial approaches for bioconversion into valuable compounds. This document presents the cotton processing industry with an innovative pathway towards a waste-to-wealth solution via microbial-based biorefineries.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 262-280"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of pyrolysis temperature on the physical and chemical characteristics of pine wood biochar","authors":"Berhane Handiso ,&nbsp;Timo Pääkkönen ,&nbsp;Benjamin P. Wilson","doi":"10.1016/j.wmb.2024.11.008","DOIUrl":"10.1016/j.wmb.2024.11.008","url":null,"abstract":"<div><div>Biochar is a useful bioproduct with a wide range of promising applications. The main objective of this study is to investigate the effect of pyrolysis temperatures on the physicochemical properties of biochar produced from pine wood using a slow pyrolysis methodology. Fourier transfer infrared (FTIR) spectroscopy analysis uncovered that the biochar synthesized at the different temperatures selected possessed distinct functional groups. The elemental analysis confirmed that an increase in pyrolysis temperature led to a rise in the carbon (C) concentration, whereas conversely there is a reciprocal decrease in the levels of oxygen (O) and hydrogen (H). Consequently, biochar produced at high temperatures showed low (O/C) and (H/C) fractions. Surface area (gas adsorption) studies indicated that the biochar surface area and pore volume increase at higher pyrolysis temperature. In contrast, the pore size was found to decrease at high temperatures. It was found that increased pyrolysis temperature resulted in reduced biochar yield. Biochar for use in specific applications like as an adsorbent material is ultimately influenced by the pyrolysis temperature. Therefore, it can be concluded that the results of the current study enhances the understanding on the effect of pyrolysis temperature on biochar synthesis and how different parameters can be used to tailor the material characteristics for specific applications.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 281-287"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Green synthesis of CuO nanoparticles via Tulsi (Ocimum Sanctum) leaf extract for efficient adsorptive removal of doxycycline hydrochloride from aqueous solution” [Waste Manage. Bull. 2(3) (2024) 216–228]","authors":"Neha Dhiman","doi":"10.1016/j.wmb.2024.11.010","DOIUrl":"10.1016/j.wmb.2024.11.010","url":null,"abstract":"","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Page 261"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing wood waste for sustainable biofuel: A bibliometric analysis and review of valorisation strategies","authors":"Nicky Rahmana Putra ,&nbsp;Ibham Veza ,&nbsp;Irianto Irianto","doi":"10.1016/j.wmb.2024.11.006","DOIUrl":"10.1016/j.wmb.2024.11.006","url":null,"abstract":"<div><div>This study provides a comprehensive bibliometric analysis of research trends in wood waste valorisation, focusing on key areas such as biofuel production, biochemical processes, and the integration of sustainability practices. The data reveals that China, the United States, and Canada are leading contributors in terms of both document output and citations, reflecting their significant roles in advancing the field. The analysis highlights the growing importance of integrated approaches, combining biochemical and thermochemical processes to optimize the conversion of wood waste into valuable bio-products. Co-occurrence network visualization of keywords indicates a strong focus on biofuel production, biochar, and circular economy principles, suggesting these areas will be central to future research directions. The study concludes that the field is set for considerable growth, with future research likely to emphasize scaling technologies, improving biochar applications, and fostering cross-disciplinary collaborations to enhance the sustainability and economic viability of wood waste valorisation. This research underscores the pivotal role of wood waste in the emerging bioeconomy, offering insights into future trends and opportunities for innovation.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 209-222"},"PeriodicalIF":0.0,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Valorising hemicellulosic fraction of corncobs concomitantly into ethanol and xylitol using Candida tropicalis Y6","authors":"Sangram Garai ,&nbsp;Ashish Khandelwal ,&nbsp;Anju Arora","doi":"10.1016/j.wmb.2024.11.007","DOIUrl":"10.1016/j.wmb.2024.11.007","url":null,"abstract":"<div><div>Crop residues are valuable sources of lignocellulosic biomass that will continue to be available as long as food production for humanity continues. Maize, a cereal crop that serves as a staple food in many parts of the world and is cultivated in numerous countries, holds great importance. The surge in maize production generates substantial amounts of corncobs which can be used as feedstock for the production of xylitol, a compound with a rapidly growing market, and ethanol. In this study, hemicellulose was extracted from the corncobs to obtain xylose by subjecting them to acid hydrolysis with 1 % H2SO4. Non-conventional yeast strain <em>Candida tropicalis</em> Y6 isolated from rotten vegetables was tested for growth and xylose utilization potential on synthetic and acid pre-hydrolysate medium supplemented with mineral salts. <em>Candida tropicalis</em> Y6 exhibited high growth and sugar utilization. On synthetic medium with xylose as the sole C source it produced 6.71 g/L and 0.38 gg-1 of xylitol showing maximum conversion efficiency (53 %) at 24 h, and also produced 0.3 g/L ethanol at 48 h. When cultured on undetoxified corncob hydrolysate, <em>C. tropicalis</em> Y6 produced 0.41 g/L xylitol and 0.74 g/L ethanol. Its xylose conversion was severely affected in acid hydrolysates possibly due to the presence of inhibitors. This <em>C. tropicalis</em> Y6 strain was distinct from other reports in producing a higher level of ethanol than xylitol during fermentation of corncob acid prehydrolysate pointing towards the ratio of XR and XDH enzymes activities under studied conditions.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 223-230"},"PeriodicalIF":0.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-valorisation of cassava peel and rice husk to biofuel precursor via intermediate pyrolysis: Kinetics, thermodynamic and pyrolytic oil characterisation","authors":"Ezeh Ernest Mbamalu ,&nbsp;Isah Yakub Mohammed","doi":"10.1016/j.wmb.2024.11.004","DOIUrl":"10.1016/j.wmb.2024.11.004","url":null,"abstract":"<div><div>This study explored the co-valorisation of cassava peel and rice husk into biofuel precursors through pyrolysis. The research involved characterization of the biomass, and thermogravimetric analysis at heating rates of 5, 10, and 15 °C/min. An intermediate pyrolysis was conducted using a laboratory-scale setup with a stainless-steel reactor and a Swagelok double-ended tube, yielding pyrolytic oil for analysis. Proximate analysis revealed cassava peel (CP) contains 9.23 wt% ash, while rice husk (RH) has 16.50 wt% ash respectively, while the combined samples of cassava peel and rice husk (CS) had ash content of 74.27 wt%, fixed carbon of 70.07 wt%, and volatile matter of 75.72 wt%. The heating values for the samples were 17.15 MJ/kg, 15.22 MJ/kg, and 17.06 MJ/kg for cassava peel, rice husk, and combined sample respectively. Ultimate analysis indicated the following elemental compositions: CP (40.95 % C, 5.67 % H, 0.22 % N, 0.09 % S, 52.17 % O₂), RH (40.15 % C, 5.98 % H, 0.41 % N, 0.78 % S, 52.68 % O₂), and the CS (43.06 % C, 6.41 % H, 0.32 % N, 0.41 % S, 49.80 % O₂). Kinetic and thermodynamic analysis from the distributed activation energy models revealed average activation energies of 184.95 kJ/mol (CP), 140.56 kJ/mol (RH), and 125.63 kJ/mol (CS). The pyrolysis products consist of 37.50 wt% pyrolytic oil, 11.12 wt% bio-char, and 51.38 wt% non-condensable gases. GC–MS analysis of the pyrolytic oil identified significant amounts of hydrocarbons, phenols, and phenol derivatives, suggesting potential for biofuel production. This study highlights the viability of combined biomass sources for biofuel production and waste to wealth utilization.</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 194-208"},"PeriodicalIF":0.0,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced convolutional neural network methodology for solid waste classification utilizing data augmentation techniques","authors":"Daniel Hogan Itam ,&nbsp;Ekwueme Chimeme Martin ,&nbsp;Ibiba Taiwo Horsfall","doi":"10.1016/j.wmb.2024.11.002","DOIUrl":"10.1016/j.wmb.2024.11.002","url":null,"abstract":"<div><div>The increasing volume of solid waste generated globally necessitates efficient classification systems to enhance recycling and waste management processes. Convolutional Neural Networks (CNNs) have emerged as a powerful tool for image classification tasks, including solid waste identification. However, difficult external variables including changes in illumination, occlusion, and background clutter can have a big impact on CNN performance. Furthermore, pooling procedures frequently cause classic CNNs to lose spatial information, which might impair performance on tasks requiring extremely fine sense of place. This paper presents a comprehensive study on the application of an improved CNN-based models for solid waste classification. In the present study we explored image data resizing, augmentation technique and hyperparameter tuning to improve the performance of the proposed model. The results demonstrate that the improved-CNN model achieved high accuracy of 94.40 % compared to the conventional CNN and other deep learning model such as ResNet-50, Inception-V3 and VGG-19 (81.83, 66.67, 52.83 and 56.00 %).</div></div>","PeriodicalId":101276,"journal":{"name":"Waste Management Bulletin","volume":"2 4","pages":"Pages 184-193"},"PeriodicalIF":0.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142701913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}