{"title":"Improved pyrolysis for sewage sludge valorization via enhanced microcosm vermicomposting","authors":"Rapheal Nsiah-Gyambibi","doi":"10.1007/s10163-023-01787-5","DOIUrl":"10.1007/s10163-023-01787-5","url":null,"abstract":"<div><p>The addition of plant-derived bulking amendments to substrates in sewage vermicomposting provides an improved resource recovery technique for compost production. Producing biochar from these enhanced vermicompost through slow pyrolysis is a value-added approach to recycle the organic waste and has the potential of guaranteeing a complete removal of pathogens. The study assessed the potential use of coconut coir, palm coir and sawdust as bulking amendments in an enhanced vermicomposting and investigated the influence of these enhanced vermicomposting on the quality of biochar produced via slow pyrolysis. Results revealed that the enhanced vermicomposting improved the vermiculture of <i>E. foetida</i> and significantly reduced the worm mortality (< 10%). The biochar produced from the enhanced vermicomposting exhibited desired physicochemical characteristics where the coconut coir treatment demonstrated the highest yield (41.65 ± 0.76%) compared to the palm coir (35.32 ± 2.07%) and sawdust (33.18 ± 0.37%). The slow pyrolysis of the enhanced vermicompost also demonstrated a complete pathogen removal (100%) in terms of total coliform and <i>E.coli</i>.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3699 - 3713"},"PeriodicalIF":3.1,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45435087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaodi Gong, Tao Shi, Zhiqiang Zhong, Yuchen Wang, Junhong Chen
{"title":"Recycling waste incineration fly ash to prepare foam glass as building insulation material","authors":"Xiaodi Gong, Tao Shi, Zhiqiang Zhong, Yuchen Wang, Junhong Chen","doi":"10.1007/s10163-023-01781-x","DOIUrl":"10.1007/s10163-023-01781-x","url":null,"abstract":"<div><p>In this study, waste incineration fly ash and waste glass were used as the main raw materials for sintering to prepare foam glass, which has good application prospects as building insulation materials. The effects of different Na<sub>2</sub>CO<sub>3</sub> additions and sintering atmospheres on the physical properties, microstructure and heavy metal leaching rate of the foam glass were investigated. It was shown that the best overall performance of the sintered foam glass was obtained when air sintering atmosphere and the maximum sintering temperature were 993 ℃, the fly ash content was 48 wt%, the waste glass powder content was 35 wt%, the Na<sub>2</sub>CO<sub>3</sub> content was 5 wt% and the Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub>·10H<sub>2</sub>O content was 12 wt%. Its water absorption is 5.7%, bulk density is 1.615 g/mL, alkali resistance is 99.3%, acid resistance is 97.6%, compressive strength is 9.52 MPa, thermal conductivity is 0.6653 W/mK, and its heavy metal leaching toxicity test is much lower than China’s national standard “hazardous waste identification standard leaching toxicity identification” (GB 5085.3-2007). It fully complies with the industry standard of foam glass. Therefore, the use of waste incineration fly ash and waste glass to prepare foam glass is an effective way to achieve efficient waste recycling and reduce the cost of construction material products.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3584 - 3592"},"PeriodicalIF":3.1,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43396738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhuojun Zeng, Zhiyong Han, Baiyu Zhou, Ying Liu, Saqi Zheng, Haoji Wang, Dezhi Shi
{"title":"Effect of publicity on public awareness and willingness for domestic waste management: a case study in a model village in China","authors":"Zhuojun Zeng, Zhiyong Han, Baiyu Zhou, Ying Liu, Saqi Zheng, Haoji Wang, Dezhi Shi","doi":"10.1007/s10163-023-01750-4","DOIUrl":"10.1007/s10163-023-01750-4","url":null,"abstract":"<div><p>Raising public awareness and willingness to manage domestic waste is a key strategy for solving waste pollution in rural areas. A model village in Sichuan Province in Southwest China was taken as a typical case to study the effect of publicity on public awareness and willingness to manage domestic waste, and the investigations were carried out using questionnaires and statistical methods. The results indicate that the public had good awareness of the necessity of waste treatment and a strong willingness to pay for the waste disposal fee in the model village. The percentage of approved respondents reached 98–100%. The publicity of waste management remarkably improved public willingness to classify waste. This percentage increased from 76.8 to 91.2% after publicity. However, public awareness of waste classification and willingness to work as a cleaner (55–70%) did not improve evidently. Meanwhile, public awareness of hazardous waste remained relatively weak. Logistic regression analysis showed that the publicity had the largest positive influence (OR = 1.856–6.871) on public awareness and the willingness to engage in domestic waste management. Gender and age also had significant impacts. Therefore, expanding the coverage of waste classification publicity, strengthening the education of waste toxicity, and diversifying publicity styles for different groups can improve public awareness and willingness to manage domestic waste in model rural areas.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3228 - 3236"},"PeriodicalIF":3.1,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42366389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study on the mechanism and mechanical properties of magnesium oxychloride cement for blocking pollutants migration from electrolytic manganese residue","authors":"Zhaoyi He, Liang Tang, Kefan Chen, Xiaoli Wang, Zuzhen Shen, Yixun Xiao","doi":"10.1007/s10163-023-01784-8","DOIUrl":"10.1007/s10163-023-01784-8","url":null,"abstract":"<div><p>Electrolytic manganese residue (EMR) is a hazardous solid waste, which contains a large amount of soluble manganese and ammonia nitrogen, and improper disposal will pollute the environment and affect human health. In this paper, the magnesium oxychloride cement (MOC) was used to stabilize/solidify the heavy metals in EMR, and the leaching toxicity, compressive strength, phase composition and microstructure of the solidified body were studied under the conditions of different MOC dosage and MgO/MgCl<sub>2</sub> molar ratio. The research showed that the leaching of Mn<sup>2+</sup> and NH<sub>4</sub><sup>+</sup>–N of EMR solidified by MOC were lower than the integrated wastewater discharge standard of China, and each group showed good compressive strength. When the molar ratio of MgO/MgCl<sub>2</sub> was equal to 5 and MOC dosage was 50%, the compressive strength of the solidified body reached 82.26 Mpa. The microscopic experiment showed that the insoluble salts NH<sub>4</sub>H(PO<sub>3</sub>)<sub>2</sub>, K<sub>4</sub>MnCl<sub>6</sub>, and Mn(MgMn)Zn<sub>2</sub>(OH)<sub>10</sub>(H<sub>2</sub>O)<sub>2</sub> generated in solidified body could stabilize Mn<sup>2+</sup> and NH<sub>4</sub><sup>+</sup>–N. In addition, the needle-rod phase 5 and phase 3 generated in EMR-solidified body were the main providers of mechanical strength and barrier pollutants, and the waste EMR can be recycled as a green cementitious material.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3161 - 3174"},"PeriodicalIF":3.1,"publicationDate":"2023-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44007008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Strength, mineralogical and microstructural studies on clayey soil stabilized by bio-stabilized waste ash with lime","authors":"Arunthathi Sendilvadivelu, Balaji Dhandapani, Sivapriya Vijayasimhan","doi":"10.1007/s10163-023-01782-w","DOIUrl":"10.1007/s10163-023-01782-w","url":null,"abstract":"<div><p>Clayey soils can be strengthened and stabilized primarily using a variety of binder materials, such as lime, cement, fly ash, etc., which have been extensively researched. Despite that, recent studies focus on solid waste as binary and tertiary additives along with the activators to improve the strength of clay by considering the aspect of the environment and economy. In this study, bio-stabilized waste ash (BSWA) is considered as a binary additive which was added in the range of 0–25% (% by weight) with 4.5% (% by weight) initial consumption of lime (ICL) into the clay and cured for 0, 7, 14, and 28 days to enhance the index properties and compressive strength of untreated clay. The compressive strength of soil with an optimum percentage of BSWA (15%) and ICL shows a fourfold increase when compared to the virgin soil's strength cured for 28 days. Scanning Electron Microscopy, Fourier Transform Infrared, and X-ray Diffraction analysis depict the noticeable changes in microstructure and mineralogical composition of BSWA-amended clay.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3625 - 3637"},"PeriodicalIF":3.1,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42565149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong-Hwi Kim, Hee-Seop Ahn, Hyeon-Jeong Go, Da-Yoon Kim, Jae-Hyeong Kim, Kyu-Beom Lim, Jun-Hyung Kwon, Young-Jun Kwon, In-Soo Choi
{"title":"Development of a biosecure carcass composting method using a fermentation system containing hyper-thermophilic microorganisms","authors":"Dong-Hwi Kim, Hee-Seop Ahn, Hyeon-Jeong Go, Da-Yoon Kim, Jae-Hyeong Kim, Kyu-Beom Lim, Jun-Hyung Kwon, Young-Jun Kwon, In-Soo Choi","doi":"10.1007/s10163-023-01774-w","DOIUrl":"10.1007/s10163-023-01774-w","url":null,"abstract":"<div><p>Recent intensive livestock production has made domestic animals vulnerable to infectious diseases such as foot and mouth disease. Infected animals and nearby animals are culled and then buried or incinerated to prevent the spread of the disease in most countries, including South Korea. The burial of animal carcasses in the soil may produce side effects, such as the production of leachate and odors, and could potentially spread infectious diseases. This study tested YM microorganisms, which mainly contain hyper-thermophilic organisms that can degrade pig carcasses and inactivate pathogenic microorganisms. An experimental burial system installed with an aeration facility was developed, and the decomposition effects of YM microorganisms were verified using pig carcasses. Pig carcasses were almost completely decomposed in 30 days without leachate, and all experimentally inoculated pathogens were completely inactivated by YM microorganisms. The final composites were satisfied with all inspection criteria for using the byproduct as fertilizer after an additional 34 days of composting. In conclusion, the newly developed hyper-thermophilic YM microorganism system may produce biosecure fertilizers from animal carcasses.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3522 - 3529"},"PeriodicalIF":3.1,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44099593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanical strength characteristics of saline soil stabilized by all-solid waste cementitious material based on projection pursuit regression modeling","authors":"Jingwei Gong, Xiaohan Zhan, Miaomiao Gong, Liang Wang, Gangchuan Xie","doi":"10.1007/s10163-023-01772-y","DOIUrl":"10.1007/s10163-023-01772-y","url":null,"abstract":"<div><p>To reduce engineering hazards caused by saline soil, and considered from the perspectives of environmental protection and resource conservation, an all-solid waste cementitious material consisting of carbide slag (CS), fly ash (FA), and slag was designed and used to stabilize saline soils with different sulfate contents. Unconfined compressive strength (UCS) tests were conducted, and a projection pursuit regression (PPR) model was established to investigate the relationship between the waste composition and the UCS of the stabilized soil at different sulfate contents. The microstructural characteristics of the stabilized soil were explored through scanning electron microscopy–energy dispersive spectrometer (SEM–EDS), X-ray diffraction (XRD), thermogravimetric–differential thermal analysis (TG–DTA). The results showed that the dosages of pozzolanic materials (FA and slag) and sulfate content had non-negligible effects on the UCS of stabilized soils. The stabilization mechanism included the cementing effect of the volcanic ash reaction and the filling effect of ettringite (AFt). The PPR model exhibited high calculation accuracy and reflected the inherent structure of high-dimensional test data for the UCS of saline soil stabilized with the designed all-solid waste cementitious material.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3490 - 3507"},"PeriodicalIF":3.1,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44348574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Reymar R. Diwa, Estrellita U. Tabora, Nils H. Haneklaus, Jennyvi D. Ramirez
{"title":"Rare earths leaching from Philippine phosphogypsum using Taguchi method, regression, and artificial neural network analysis","authors":"Reymar R. Diwa, Estrellita U. Tabora, Nils H. Haneklaus, Jennyvi D. Ramirez","doi":"10.1007/s10163-023-01753-1","DOIUrl":"10.1007/s10163-023-01753-1","url":null,"abstract":"<div><p>The Philippines produce some 2.1–3.2 million t phosphogypsum (PG) per year. PG can contain elevated concentrations of rare earth elements (REEs). In this work, the leaching efficiency of the REEs from Philippine PG with H<sub>2</sub>SO<sub>4</sub> was for the first time studied. A total of 18 experimental setups (repeated 3 times each) were conducted to optimize the acid concentration (1–10%), leaching temperature (40–80 °C), leaching time (5–120 min), and solid-to-liquid ratio (1:10–1:2) with the overall goal of maximizing the REE leaching efficiency. Applying different optimizations (Taguchi method, regression analysis and artificial neural network (ANN) analysis), a total REEs leaching efficiency of 71% (La 75%, Ce 72%, Nd 71% and Y 63%) was realized. Our results show the importance of the explanatory variables in the order of acid concentration > temperature > time > solid-to-liquid ratio. Based on the regression models, the REE leaching efficiencies are directly related to the linear combination of acid concentration, temperature, and time. Meanwhile, the ANN recognized the relevance of the solid-to-liquid ratio in the leaching process with an overall <i>R</i> of 0.97379. The proposed ANN model can be used to predict REE leaching efficiencies from PG with reasonable accuracy.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3316 - 3330"},"PeriodicalIF":3.1,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44114698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extraction of bio-fillers from natural solid wastes (citrus limetta peel) and characterization of the physical, mechanical, and tribological performance of sustainable biocomposites","authors":"Santosh Kumar, Sumit Bhowmik","doi":"10.1007/s10163-023-01773-x","DOIUrl":"10.1007/s10163-023-01773-x","url":null,"abstract":"<div><p>The abundant accessibility of <i>citrus limetta</i> peels (CLP) is having great source to use as bio-fillers for developing sustainable and biodegradable composite that will replace plastic and synthetic litter. Thus, utilization of CLP solid waste as bio-filler to develop biocomposites has gained much attention for developing light-weight and economical materials. In this study, the fine CLP particles have been extracted from limetta peels and treated with NaOH and then physical characterization such as XRD, FTIR, and FESEM analysis has been done to analyze the crystalline behavior, functional group, and structural morphology. The biocomposite samples are prepared at different weight fraction of particles (0.0%, 2.5%, 5.0%, 7.5%, and 10%) and investigate the mechanical, structural, thermal, and tribological properties of prepared biocomposites. The results revealed that the addition of CLP particles up to 5% with bioepoxy matrix increased the tensile strength (18.37%), flexural strength (11.21%), and hardness (35.23%) compared to neat samples. CLP-5.0 composites examined greater thermal stability and degradation temperature (388 °C) with lower water absorption. The frictional wear of biocomposites has been examined by varying sliding distance at different applied load (10 N, 20 N, and 30 N) and examined that the increment in sliding distance increased the volume loss and observed maximum for CLP-10 composites at 30 N load. The fluctuating CoF and interface temperature have been examined, and the maximum is between 1000 m–1250 m at 30 N load for CLP-10.0 and CLP-0.0 composites. Finally, the addition of CLP resulted in cost saving materials with enhanced specific properties and wear resistance to replace plastic and conventional materials for various indoor and outdoor applications.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3508 - 3521"},"PeriodicalIF":3.1,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48691071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implementation of agriculture waste for the synthesis of metal oxide nanoparticles: its management, future opportunities and challenges","authors":"Shivani Chaudhary, Vijay Prakash Jain, Deepa Sharma, Gautam Jaiswar","doi":"10.1007/s10163-023-01770-0","DOIUrl":"10.1007/s10163-023-01770-0","url":null,"abstract":"<div><p>The incineration of agricultural waste (agro-waste) as a fuel or solid fuel results in landfilled ash that in most cases results in an environmental problem in its disposal. We highlighted an excellent overview for the utilization of different types of agricultural waste, such as rice husk and straw, sugarcane bagasse, bamboo leaves, banana peel, onion peel, and other agricultural waste employed for the fabrication of low-cost, environmentally friendly, and high potential range nanomaterials. In this review, we summarized the synthesis process and applications of metal oxide nanomaterials such as ZnO and SiO<sub>2</sub>, which are promising value-added material for various purposes, using agricultural waste as raw material. We have also discussed different applications, toxic effects as well as management of agricultural waste by the “3R” strategy of the agricultural waste management system. We conclude this review by suggesting future applications of agricultural waste as well as providing protective measures against global pollution.</p><h3>Graphical abstract</h3>\u0000 <div><figure><div><div><picture><source><img></source></picture></div></div></figure></div>\u0000 </div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"25 6","pages":"3144 - 3160"},"PeriodicalIF":3.1,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47721966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}