Detritus最新文献_第3页

Environmental Forensic 环境法律

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18279

Managing editors: Alberto Pivato, Claire Gwinett, George Varghese

引用次数: 0

Advancing bioenergy for a green future 推进生物能源，开创绿色未来

IF 1.7

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18278

G. Ischia, Filippo Marchelli, L. Fiori

引用次数: 0

Detritus & Art 碎屑,艺术

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18283

Managing editor: Rainer Stegmann

引用次数: 0

Valorisation of eyewear bioplastics through HTC and anaerobic digestion: Preliminary results 通过HTC和厌氧消化的眼镜生物塑料的增值:初步结果

IF 1.7

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18275

Filippo Marchelli, R. Ferrentino, G. Ischia, Marco Calvi, G. Andreottola, L. Fiori

{"title":"Valorisation of eyewear bioplastics through HTC and anaerobic digestion: Preliminary results","authors":"Filippo Marchelli, R. Ferrentino, G. Ischia, Marco Calvi, G. Andreottola, L. Fiori","doi":"10.31025/2611-4135/2023.18275","DOIUrl":"https://doi.org/10.31025/2611-4135/2023.18275","url":null,"abstract":"Bioplastics are increasingly replacing traditional plastics in many sectors, but the legislative and operative frameworks for their disposal remain unclear: they should be collected and treated together with the organic fraction of municipal solid waste (OFMSW), but often do not biodegrade satisfactorily in the plants that treat OFMSW. This work focuses on a type of cellulose diacetate employed in the eyewear industry to analyse hydrothermal carbonization (HTC) as a pre-treatment before anaerobic digestion (AD). The results show that HTC can hydrolyse this bioplastic even at moderate temperatures, reaching an almost total dissolution in the liquid phase at 210 °C and, at higher temperatures, producing hydrochar. When the HTC slurry obtained at 210 °C is fed to mesophilic or thermophilic AD, both the amount and the production rate of biogas are enhanced compared to the raw bioplastic. In particular, in thermophilic conditions, the amount of produced biogas undergoes at least a threefold increase compared to the untreated cellulose diacetate. Thus, this work confirms that a prior HTC step may be a suitable approach to enhance the disposal and energy recovery of bioplastics through AD.","PeriodicalId":44191,"journal":{"name":"Detritus","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43174929","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}

引用次数: 0

Analysis of secondary waste from a plastics recycling plant for the production of carboxylic acids 某塑料回收厂用于生产羧酸的二次废弃物分析

IF 1.7

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18277

Kyra Atessa Vogt, Leonie Wenzel, I. Steinberg

{"title":"Analysis of secondary waste from a plastics recycling plant for the production of carboxylic acids","authors":"Kyra Atessa Vogt, Leonie Wenzel, I. Steinberg","doi":"10.31025/2611-4135/2023.18277","DOIUrl":"https://doi.org/10.31025/2611-4135/2023.18277","url":null,"abstract":"The production of bio-based platform chemicals through the chain elongation of short-chain carboxylic acids to medium-chain carboxylic acids by ethanol-acetat fermentation can be a contribution to the circular economy. To avoid further waste, secondary waste that already contains short-chain carboxylic acids can be used. The potential for the production of bio-based carboxylic acids from a secondary waste of a recycling plant for plastic waste is examined in this paper. Therefore, practical experiments with the process water of a recycling plant for plastic waste were conducted in order to assess the potential for carboxylic acids production. At the end of the experiment, the concentrations achieved by chain elongation in the secondary waste result in 496 mg/L butyric acid and 87 mg/L caproic acid and the concentration in the extraction solvent is 933 mg/L caproic acid. To conclude, chain elongation of carboxylic acids in secondary waste, in this case the process water from a treatment plant for plastic waste, is generally possible. In order to estimate the total potential for the production, the fluctuations of the quality of the process water have to be considered.","PeriodicalId":44191,"journal":{"name":"Detritus","volume":"1 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41620870","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}

引用次数: 0

Books review 书籍评论

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18281

Managing editor: Marco Schiavon

引用次数: 0

Books review 书籍评论

Detritus Pub Date : 2023-06-30 DOI: 10.31025/2611-4135/2023.18282

Managing editor: Marco Schiavon

引用次数: 0

RECOVERY AND UTILISATION OF MUNICIPAL SOLID WASTE INCINERATION BOTTOM ASH: IMPLICATIONS FOR EUROPEAN WASTE MANAGEMENT STRATEGY 城市固体废物焚烧底灰的回收利用&对欧洲废物管理战略的启示

IF 1.7

Detritus Pub Date : 2023-06-15 DOI: 10.31025/2611-4135/2023.17274

Carly A. Fletcher, R. Dunk

{"title":"RECOVERY AND UTILISATION OF MUNICIPAL SOLID WASTE INCINERATION BOTTOM ASH: IMPLICATIONS FOR EUROPEAN WASTE MANAGEMENT STRATEGY","authors":"Carly A. Fletcher, R. Dunk","doi":"10.31025/2611-4135/2023.17274","DOIUrl":"https://doi.org/10.31025/2611-4135/2023.17274","url":null,"abstract":"Over the last two decades, the stated intent of European waste management strategy has evolved from a specific focus on landfill diversion to enabling the transition to a circular economy.. Widespread introduction of source-segregation alongside deployment of material recovery technologies have improved MSW management practices across Europe. However, with diminishing returns it has become more difficult to achieve further landfill diversion through increased recycling alone, and incineration rates (across the EU-27 as a whole) have continued to increase. The advantages of incineration include the ability to harness the energy content of the waste alongside a sizeable reduction in mass and volume. However, the remaining solid residues, the most substantial being incinerator bottom ash, present a management issue. Exploring the role of incineration and the utilisation of incineration bottom ash, this paper highlights the potential risks of lock-in in the context of evolving waste policy. A simple thought experiment suggests that while increased use of incineration may help member states achieve 2035 landfill diversion targets, it would also carry a substantive risk of placing the 2035 recycling target out of reach. To address this, a long-term vision concerning the future of incineration is required, where it is recommended that policy which focuses on landfill diversion and the recycling of residual wastes should be strengthened through mechanisms that gradually phase out incineration and distinguish between open and closed-loop recycling.","PeriodicalId":44191,"journal":{"name":"Detritus","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44155478","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}

引用次数: 0

ANAEROBIC DIGESTION OF BREWER’S SPENT GRAIN WITH BIOCHAR – BIOGAS PRODUCTION KINETICS AND PROCESS EFFICIENCY 用生物炭厌氧消化啤酒废粮——产气动力学和工艺效率

IF 1.7

Detritus Pub Date : 2023-06-15 DOI: 10.31025/2611-4135/2023.17277

Kacper Świechowski, Ewa Syguła, Waheed A. Rasaq, Alan Gasiński, Jacek Łyczko

{"title":"ANAEROBIC DIGESTION OF BREWER’S SPENT GRAIN WITH BIOCHAR – BIOGAS PRODUCTION KINETICS AND PROCESS EFFICIENCY","authors":"Kacper Świechowski, Ewa Syguła, Waheed A. Rasaq, Alan Gasiński, Jacek Łyczko","doi":"10.31025/2611-4135/2023.17277","DOIUrl":"https://doi.org/10.31025/2611-4135/2023.17277","url":null,"abstract":"Biochars made from brewer’s spent grain were added to the anaerobic digestion of brewer’s spent grain to enhance the methane fermentation process and improve biogas production. In research, the effect of biochars made at 300, 450, and 600 °C and doses of 1-8% added to anaerobic digestion was tested. The biochemical biogas potential tests in mesophilic conditions were performed. The tests took 28 days, the biogas yield for each reactor varied from 500-650 ml×gVS-1, and around 60% substrate degradation was obtained. For each test, the kinetics parameters using the first-order model were determined. The constant biogas production rate (k), and the biogas production rate (r) varied from 0.05-0.08 d−1, and 42-60 ml×(gVS×d)−1 respectively. Though the differences in biogas production turned out to be statistically insignificant (p<0.05) due to the high disappearance in obtained data and conflicting effects, the response surface area analysis showed that biochar made at 450 °C at the share of 1-4% could be used to maximize biogas production. Nevertheless, supplementation with biochar needs to be done carefully since in many cases, a reduction in biogas production was observed","PeriodicalId":44191,"journal":{"name":"Detritus","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42221400","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}

引用次数: 1

Co-composting of sawdust with food waste: effects of physical properties on composting process and product quality 木屑与食物垃圾共堆肥:物理性质对堆肥过程和产品质量的影响

IF 1.7

Detritus Pub Date : 2023-06-15 DOI: 10.31025/2611-4135/2023.17276

Hadi Bello, Jamiu Olamilekan Ajao, N. A. Sadiku

{"title":"Co-composting of sawdust with food waste: effects of physical properties on composting process and product quality","authors":"Hadi Bello, Jamiu Olamilekan Ajao, N. A. Sadiku","doi":"10.31025/2611-4135/2023.17276","DOIUrl":"https://doi.org/10.31025/2611-4135/2023.17276","url":null,"abstract":"Sawdust and food waste have been part of solid organic waste causing great environmental pollution. Composting is a popular utilization method of converting waste like sawdust and food waste to sanitized and stabilized soil amendment. Unfortunately, many composting systems failed due to a dearth of information as a result of little or no scientific research focused on the effects of the physical properties of composting materials on the composting process. To fill this knowledge gap, three composting experiments of food wastes mixed with sawdust at ratio 20:80, 30:70, and 40:60 and compacted to different initial bulk densities of 15, 20, and 25 kg/m3 respectively was carried out to explore the effect of physical properties on composting of sawdust with food wastes. Physicochemical parameters monitored include bulk density; porosity; particle density, temperature, moisture content; pH, and electrical conductivity (EC). The highest temperature (65.3 oC) was recorded by trial 3 while trial 1 recorded the lowest temperature (49.3 0C). Among trials 1, 2, and 3, the maximum pH (9.2) and EC (5.1 mS/cm) were observed in compost trial 3. Additionally, the lowest pH (5.3) and EC (1.4 mS/cm) was observed in trial 1. Trial 3 had the highest percentage finest and lowest fibrosity content. A significant increase in bulk density, porosity, and particle density was observed in the three compost trials. The compost’s bulk density of (25 kg/m3) in trial 3 was observed to attain maturity and stability as compared with trials 1 and 2. \u0000","PeriodicalId":44191,"journal":{"name":"Detritus","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44216708","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}

引用次数: 0