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固体废物 4

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The road to sustainable use and waste management of plastics in Portugal

《环境科学与工程前沿(英文)》 2022年 第16卷 第1期   页码 5-5 doi: 10.1007/s11783-021-1439-x

摘要:

• Portugal recycles 34% of the 40 kg/hab year of plastic packaging waste.

关键词: Single-use plastics     Plastic packaging     Plastic waste     Waste management     Waste shipment     Lightweight plastic bags    

Integrated approach to winery waste: waste generation and data consolidation

Margarida OLIVEIRA,Elizabeth DUARTE

《环境科学与工程前沿(英文)》 2016年 第10卷 第1期   页码 168-176 doi: 10.1007/s11783-014-0693-6

摘要: The winemaking process involves the generation of a significant amount of waste and wastewater. These residues should be addressed for recycling or treatment before being returned to environment. As each winery is unique in waste generation and disposal, plans for environmentally friendly waste management are not universal and should be tested for their effectiveness. In this study, a diagnostic was made during three years, in different wineries, throughout Portugal, in order to quantify and characterize the waste and the wastewater produced. The results showed that solid waste and wastewater are mainly produced during the harvest period, corresponding to 74% and 87%, respectively. One ton of processed grape approximately produce 0.13 t marc, 0.06 t lees, 0.03 t of stalks and 1.65 m of wastewater. No significant differences ( ≤0.05) were observed for grape marc, lees and wastewater ratios, between years or wineries. With respect to the stalk ratio, there was no effect of year but the winery significantly affected this ratio ( ≤0.05). During the study period the treated wastewater, since diluted, revealed suitable characteristics for irrigation representing an additional source of water. In this regard, the data acquisition and consolidation ensure the transfer of information and experience which constitute an essential step in a support decision tool design.

关键词: waste management     wastewater reuse     winery wastewater    

VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

《农业科学与工程前沿(英文)》 2023年 第10卷 第3期   页码 333-340 doi: 10.15302/J-FASE-2023513

摘要: VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

关键词: WASTE     CARBON     VALORIZATION     NEUTRALITY    

Repercussions of COVID-19 pandemic on solid waste generation and management strategies

《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1407-5

摘要:

• Implication of COVID-19 on medical waste and MSW generation is studied.

关键词: COVID-19     Medical waste     Personal protective equipment     Municipal solid waste     Waste management    

Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

《环境科学与工程前沿(英文)》 2012年 第6卷 第4期   页码 575-587 doi: 10.1007/s11783-011-0344-0

摘要: Sustainable waste management in the industrial ecology perspective brings enormous challenges to the existing methodology of waste analysis at the industrial park (IP) scale. In this study, a four-step method was proposed for industrial solid waste (ISW) flow analysis of eco-industrial parks (EIPs) and applied to two IPs in eastern China. According to a park-wide census of 619 industrial enterprises and 105 questionnaires by a survey from 2006 to 2008, the results indicated that: 1) at the enterprise scale, more than 60% of enterprises were small-ISW-generation enterprises which encountered great difficulties on effective waste management; 2) at the IP scale, though the two IPs have set up their own environmental management systems and passed the ISO 14001 certification, the efficiencies of the ISW management systems have yet to be improved in the industrial ecology perspective; and 3) at the regional scale, more than 97% of ISW flowed within the provincial region, indicating that the provincial governments prevented the wastes from flowing into their own “back yard”. Effective waste management should be placed in a broader perspective. Approaches to sustainable waste management may include wastes exchange, efficient waste and information flow, virtual EIP, waste minimization clubs and regionalization of waste management.

关键词: industrial solid waste     waste flow analysis     eco-industrial parks     sustainable waste management     “not in my back yard”    

Biodegradation of waste refrigerator polyurethane by mealworms

《环境科学与工程前沿(英文)》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1638-8

摘要:

● Waste refrigerator polyurethane (WRPU) was ingested and biodegraded by mealworms.

关键词: Waste refrigerator polyurethane     Mealworms     Biodegradation     Carbon balance     Gut microorganism    

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

《环境科学与工程前沿(英文)》 2011年 第5卷 第4期   页码 623-632 doi: 10.1007/s11783-011-0334-2

摘要: Effect of pH ranging from 4.0 to 11.0 on co-fermentation of waste activated sludge (WAS) with food waste for short-chain fatty acids (SCFAs) production at ambient temperature was investigated in this study. Experimental results showed that the addition of food waste significantly improved the performance of WAS fermentation system, which resulted in the increases of SCFAs production and substrate reduction. The SCFAs production at pH 6.0, 7.0, 8.0, and 9.0 and fermentation time of 4 d was respectively 5022.7, 6540.5, 8236.6, and 7911.7 mg COD·L , whereas in the blank tests (no pH adjustment, pH 8.0 (blank test 1), no food waste addition, pH 8.0 (blank test 2), and no WAS addition (blank test 3)) it was only 1006.9, 971.1, and 1468.5 mg COD·L , respectively. The composition of SCFAs at pH from 6.0 to 9.0 was also different from other conditions and propionic acid was the most prevalent SCFA, which was followed by acetic and n-butyric acids, while acetic acid was the top product under other conditions. At pH 8.0 a higher volatile suspended solids (VSS) reduction of 16.6% for the mixture of WAS and food waste than the sole WAS indicated a synergistic effect existing in fermentation system with WAS and food waste. The influence of pH on the variations of nutrient content was also studied during anaerobic fermentation of the mixture of WAS and food waste at different pH conditions. The release of increased with fermentation time at all pH values investigated except 4.0, 5.0 and in blank test one. The concentrations of soluble phosphorus at acidic pHs and in the blank test one were higher than those obtained at alkaline pHs. Ammonia and phosphorus need to be removed before the SCFAs-enriched fermentation liquid from WAS and food waste was used as the carbon source.

关键词: waste activated sludge (WAS)     food waste     co-fermentation     short-chain fatty acids (SCFAs)     pH     synergistic effect    

Power-to-chemicals: sustainable liquefaction of food waste with plasma-electrolysis

《化学科学与工程前沿(英文)》 2023年 第17卷 第5期   页码 594-605 doi: 10.1007/s11705-022-2255-y

摘要: The increasing amount of food waste from various industrial, agricultural, and household sources is an environmental burden if managed inappropriately. Numerous waste management approaches have been developed for the disposal of food waste, but still suffer from either high cost, production of toxic by-products, or secondary environmental pollutions. Herein, we report a new and sustainable plasma electrolysis biorefinery route for the rapid and efficient liquefaction of food waste. During the plasma electrolysis process, only the solvent is added to liquefy the waste, and anions in the waste can contribute to catalyzing the biowaste conversion. While liquefying the waste, the highly reactive species produced in the plasma electrolysis process can efficiently reduce the content of O, N, and Cl in the liquefied products and oxidize most of the metals into solid residues. Especially, the removal rate of Na and K elements was greater than 81%, which is significantly higher than using the traditional oil bath liquefaction, resulting in a relatively high-quality biocrude oil with a high heating value of 25.86 MJ·kg–1. Overall, this proposed strategy may provide a new sustainable and eco-friendly avenue for the power-to-chemicals valorization of food waste under benign conditions.

关键词: plasma electrolysis     food waste     liquefaction     resource recovery    

engine performance, emission and combustion characteristics fueled with diesel-like fuel produced from wasteengine oil and waste plastics

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

《环境科学与工程前沿(英文)》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1063-6

摘要:

To derive liquid fuel from waste engine oil and plastics thorough pyrolysis process

To make equal blend of waste engine oil and plastics with diesel fuel

To find the suitability of fuel from waste in diesel engine through performance, emission and combustion characteristics

关键词: Waste engine oil     Waste plastic oil     Diesel fuel     Pyrolysis     Compression ignition engine    

Environment and economic feasibility of municipal solid waste central sorting strategy: a case study

Hua ZHANG, Zongguo WEN, Yixi CHEN

《环境科学与工程前沿(英文)》 2016年 第10卷 第4期 doi: 10.1007/s11783-016-0852-z

摘要: The Green House program reduced the amount of waste by 34%. The Green House is now running with a monthly loss of 1982 CNY. Involve government, expand scale, use professional technology are main suggestions. Improved program can reduce the amount of waste by 37% (33.8 tons monthly). Improved program can flip the loss into a profit worth 35034 CNY monthly. Although Beijing has carried out municipal solid waste (MSW) source separation since 1996, it has largely been ineffective. In 2012, a “Green House” program was established as a new attempt for central sorting. In this study, the authors used material flow analysis (MFA) and cost benefit analysis (CBA) methods to investigate Green House’s environment and economic feasibility. Results showed that the program did have significant environmental benefits on waste reduction, which reduced the amount of waste by 34%. If the Green House program is implemented in a residential community with wet waste ratio of 66%, the proportion of waste reduction can reach 37%. However, the Green House is now running with a monthly loss of 1982 CNY. This is mainly because most of its benefits come from waste reduction (i.e., 5878 CNY per month), which does not turn a monetary benefit, but is instead distributed to the whole of society as positive environmental externalities. Lack of government involvement, small program scale, and technical/managerial deficiency are three main barriers of the Green House. We, thus, make three recommendations: involve government authority and financial support, expand the program scale to separate 91.4 tons of waste every month, and use more professional equipment/technologies. If the Green House program can successfully adopt these suggestions, 33.8 tons of waste can be reduced monthly, and it would be able to flip the loss into a profit worth 35034 CNY.

关键词: Environment and economic feasibility     Municipal solid waste (MSW)     Waste central sorting     Green House    

Treatment of landfill waste, leachate and landfill gas: A review

Hecham OMAR, Sohrab ROHANI

《化学科学与工程前沿(英文)》 2015年 第9卷 第1期   页码 15-32 doi: 10.1007/s11705-015-1501-y

摘要: This review aims at the treatment of the entire landfill, including the waste mass and the harmful emissions: leachate and landfill gas. Different landfill treatments (aerobic, anaerobic and semi-aerobic bioreactor landfills, dry-tomb landfills), leachate treatments (anaerobic and aerobic treatments, anammox, adsorption, chemical oxidation, coagulation/flocculation and membrane processes) and landfill gas treatments (flaring, adsorption, absorption, permeation and cryogenic treatments) are reviewed. Available information and the gaps present in current knowledge is summarized. The most significant areas to expand are landfill waste treatments, which in recent years has begun to grow but there is an opportunity for much more. Another area to explore is the treatment of landfill gas, a very large field to which not much effort has been put forth. This review is to compare different treatment methods and give direction to future research.

关键词: landfill     aerobic     anaerobic     leachate     landfill gases     municipal solid waste    

通过“无废城市”试点推动固体废物资源化利用,建设“无废社会”战略初探

杜祥琬,刘晓龙,葛琴,姜玲玲,崔磊磊

《中国工程科学》 2017年 第19卷 第4期   页码 119-123 doi: 10.15302/J-SSCAE-2017.04.019

摘要:

我国固体废物产生量大,如不进行妥善处理和利用,将对环境造成严重污染,对资源造成极大浪费,对社会造成恶劣影响。而固体废物是放错位置的资源,如能将其减量化、资源化,建设“无废社会”,必将带来显著的环境效益、社会效益和经济效益。本文通过分析我国建设“无废社会”的重大意义和存在的问题,结合可行性论证,提出要通过“无废城市”试点推动固体废物的资源化利用,逐步建设“无废社会”,并从加强顶层设计、夯实基础、明确阶段目标、加大政策支持力度等方面提出了战略建议。

关键词: “无废社会”     “无废城市”     固体废物     资源化利用     战略建议    

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

《环境科学与工程前沿(英文)》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1581-0

摘要:

● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis.

关键词: Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

Carbon footprint assessment for the waste management sector: A comparative analysis of China and Japan

Lu SUN, Zhaoling LI, Minoru FUJII, Yasuaki HIJIOKA, Tsuyoshi FUJITA

《能源前沿(英文)》 2018年 第12卷 第3期   页码 400-410 doi: 10.1007/s11708-018-0565-z

摘要:

Waste management is becoming a crucial issue in modern society owing to rapid urbanization and the increasing generation of municipal solid waste (MSW). This paper evaluates the carbon footprint of the waste management sector to identify direct and indirect carbon emissions, waste recycling carbon emission using a hybrid life cycle assessment and input-output analysis. China and Japan was selected as case study areas to highlight the effects of different industries on waste management. The results show that the life cycle carbon footprints for waste treatment are 59.01 million tons in China and 7.01 million tons in Japan. The gap between these footprints is caused by the different waste management systems and treatment processes used in the two countries. For indirect carbon footprints, China’s material carbon footprint and depreciation carbon footprint are much higher than those of Japan, whereas the purchased electricity and heat carbon footprint in China is half that of Japan. China and Japan have similar direct energy consumption carbon footprints. However, CO2 emissions from MSW treatment processes in China (46.46 million tons) is significantly higher than that in Japan (2.72 million tons). The corresponding effects of waste recycling on CO2 emission reductions are considerable, up to 181.37 million tons for China and 96.76 million tons for Japan. Besides, measures were further proposed for optimizing waste management systems in the two countries. In addition, it is argued that the advanced experience that developed countries have in waste management issues can provide scientific support for waste treatment in developing countries such as China.

关键词: waste management     waste recycling     carbon footprint     hybrid LCA    

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

《环境科学与工程前沿(英文)》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1495-2

摘要:

• Quorum sensing enhancement and inhibition methods are summarized.

关键词: Quorum sensing     Biological waste treatment     Biofilm formation    

标题 作者 时间 类型 操作

The road to sustainable use and waste management of plastics in Portugal

期刊论文

Integrated approach to winery waste: waste generation and data consolidation

Margarida OLIVEIRA,Elizabeth DUARTE

期刊论文

VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

期刊论文

Repercussions of COVID-19 pandemic on solid waste generation and management strategies

期刊论文

Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

期刊论文

Biodegradation of waste refrigerator polyurethane by mealworms

期刊论文

Co-fermentation of waste activated sludge with food waste for short-chain fatty acids production: effect

Leiyu FENG, Yuanyuan YAN, Yinguang CHEN

期刊论文

Power-to-chemicals: sustainable liquefaction of food waste with plasma-electrolysis

期刊论文

engine performance, emission and combustion characteristics fueled with diesel-like fuel produced from wasteengine oil and waste plastics

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

期刊论文

Environment and economic feasibility of municipal solid waste central sorting strategy: a case study

Hua ZHANG, Zongguo WEN, Yixi CHEN

期刊论文

Treatment of landfill waste, leachate and landfill gas: A review

Hecham OMAR, Sohrab ROHANI

期刊论文

通过“无废城市”试点推动固体废物资源化利用,建设“无废社会”战略初探

杜祥琬,刘晓龙,葛琴,姜玲玲,崔磊磊

期刊论文

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

期刊论文

Carbon footprint assessment for the waste management sector: A comparative analysis of China and Japan

Lu SUN, Zhaoling LI, Minoru FUJII, Yasuaki HIJIOKA, Tsuyoshi FUJITA

期刊论文

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

期刊论文