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Sugarcane bagasse amendment improves the quality of green waste vermicompost and the growth of

Linlin Cai, Xiangyang Sun, Dan Hao, Suyan Li, Xiaoqiang Gong, Hao Ding, Kefei Yu

《环境科学与工程前沿（英文）》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1240-2

摘要： •Earthworms were able to convert green waste into more plant-available nutrients. •The part of heavy metals content increased in the compost added by earthworm. •The addition of SCB to GW did enhance earthworm biomass and humic acid content. •The resulting vermicomposts were characterized by neutral pH and lower EC value. Vermicomposting is a feasible method for disposing of lignocellulosic waste while generating a useful product. The current study assessed the potential of vermicomposting green waste mixed with sugarcane bagasse in proportions of 25%, 50%, and 75% (v:v, based on dry weight). The suitability was evaluated based on the agrochemical properties, earthworm biomass, and phytotoxicity. The final vermicomposts exhibited near-neutral pH values (7.1–7.6), and lower EC values (0.43–0.72 mS/cm) and C:N ratios (14.1–19.9).The content of available nutrients and CEC for all the vermicomposts exceeded those of the control compost (without earthworms). For vermicomposts, the average values of NO3–-N, AP, AK, and CEC were 53, 517, 1362 mg/kg, and 158 cmol/kg, respectively. The total contents of heavy metals increased in all vermicompost treatments compared to control composts with the following average final percentages: Zn (2.0%), Cr (15.5%), Pb (23.4%), and Cu (44.3%), but these amounts were safe for application in agroforestry. The addition of sugarcane bagasse to green waste significantly increased the content of total humic substance, humic acid and urease activity, acid and alkaline phosphatase activity, and Eiseniafetida reproduction. The addition of 25% sugarcane bagasse to green waste decreased the toxicity to germinating seeds. These results revealed that vermicomposting is a feasible way to degrade green waste into a value-added chemical product.

关键词： Green waste     Earthworms     Sugarcane bagasse     Vermicomposting     Nutrient recovery    

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A review on co-pyrolysis of agriculture biomass and disposable medical face mask waste for green fuel

《化学科学与工程前沿（英文）》 2023年 第17卷 第9期   页码 1141-1161 doi: 10.1007/s11705-022-2230-7

摘要： The Association of Southeast Asian Nations is blessed with agricultural resources, and with the growing population, it will continue to prosper, which follows the abundance of agricultural biomass. Lignocellulosic biomass attracted researchers’ interest in extracting bio-oil from these wastes. However, the resulting bio-oil has low heating values and undesirable physical properties. Hence, co-pyrolysis with plastic or polymer wastes is adopted to improve the yield and quality of the bio-oil. Furthermore, with the spread of the novel coronavirus, the surge of single-use plastic waste such as disposable medical face mask, can potentially set back the previous plastic waste reduction measures. Therefore, studies of existing technologies and techniques are referred in exploring the potential of disposable medical face mask waste as a candidate for co-pyrolysis with biomass. Process parameters, utilisation of catalysts and technologies are key factors in improving and optimising the process to achieve commercial standard of liquid fuel. Catalytic co-pyrolysis involves a series of complex mechanisms, which cannot be explained using simple iso-conversional models. Hence, advanced conversional models are introduced, followed by the evolutionary models and predictive models, which can solve the non-linear catalytic co-pyrolysis reaction kinetics. The outlook and challenges for the topic are discussed in detail.

关键词： biomass     COVID-19 waste     catalyst     pyrolysis     kinetics    

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绿色过程——变废为宝

Veena Sahajwalla

《工程（英文）》 2018年 第4卷 第3期   页码 309-310 doi: 10.1016/j.eng.2018.05.011

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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    

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Green Road Construction Technologies in Guangzhou

Guan-feng An,Wen-yuan Huang,Jing-feng Zhang

《工程管理前沿（英文）》 2016年 第3卷 第1期   页码 80-86 doi: 10.15302/J-FEM-2016002

摘要： Total road pavement in Guangzhou reaches 77 ×10 m . Its huge maintenance and potential rehabilitation calls for a green road system. This paper presents a discussion, first about green road construction technologies together with their applications and development like reclaimed asphalt pavement, rubberized asphalt pavement, and warm mix asphalt; and then, about the key obstacles for promotion and activities, primarily for green road promotion, in the perspectives of the current technical and application situations in China and separately in Guangzhou. Based on environmental and conditional analysis, as well as a development expectation from an industrial viewpoint, this paper creates a development trend of green road technologies.

关键词： road     green construction     recycling of waste asphalt     rubber asphalt    

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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    

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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    

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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    

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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    

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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”    

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机械化学法辅助荧光体浸出——稀土回收绿色工程法 Article

Steff Van Loy, Koen Binnemans, Tom Van Gerven

《工程（英文）》 2018年 第4卷 第3期   页码 398-405 doi: 10.1016/j.eng.2018.05.015

摘要：

稀土元素（REE）是设计和开发可持续能源应用的重要金属。从富含稀土元素的废物流中回收这些元素对实现独立、可持续的未来能源供应至关重要。本研究比较了从绿灯荧光体LaPO4:Ce3+,Tb3+回收稀土元素的两种机制：在湿法冶金酸浸工艺前与溶剂冶金机械化学浸出工艺前的机械活化机制。稀土元素浸出率在机械活化后增加60%，完成机械化学浸出工艺后增加98%。高分辨率透射电子显微镜（HR-TEM）成像揭露了系统元素浸出率增加的原因：浸出与浸出模式的改善可归因于晶体形态从单晶体到多晶体的转变。多晶形材料的雏晶尺寸减小至纳米级，使化学单元出现不规则填充，导致晶体内缺陷颗粒边界的增加，从而增强浸出工艺。发明了一种溶剂冶金法将机械活化与浸出工艺结合成一个步骤，这有利于降低运营成本。其结果是简单、高效的工艺提供了更加绿色的荧光体废物回收替代途经。

关键词： 机械化学     稀土元素     荧光体废物     球磨研磨     溶剂冶金    

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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    

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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    

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Innovation Ecosystem for Green Smart City Building in China

Jin Chen

《工程管理前沿（英文）》 2015年 第2卷 第4期   页码 325-330 doi: 10.15302/J-FEM-2015058

摘要： Green Smart City (GSC), is one of the new types of cities which integrates eco-concepts and information technologies. As GSC construction is a resource intensive process, it requires a large amount of knowledge, information, talent and capital. Thus, setting up an innovation ecosystem is an astute way to promote the construction of a GSC. This paper, based on the case study by the Insigma Group, tries to explore the rules of innovation ecosystem building for the construction of GSCs in China.

关键词： green smart city     resource     innovation ecosystem building    

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Potential advantages in combining smart and green infrastructure over silo approaches for future cities

Yamuna KALUARACHCHI

《工程管理前沿（英文）》 2021年 第8卷 第1期   页码 98-108 doi: 10.1007/s42524-020-0136-y

摘要： Cities are incorporating smart and green infrastructure components in their urban design policies, adapting existing and new infrastructure systems to integrate technological advances to mitigate extreme weather due to climate change. Research has illustrated that smart green infrastructure (SGI) provides not only climate change resilience but also many health and wellbeing benefits that improve the quality of life of citizens. With the growing demand for smart technology, a series of problems and challenges, including governance, privacy, and security, must be addressed. This paper explores the potential to transition from grey, green, or smart silos to work with nature-based solutions and smart technology to help change cities to achieve considerable environmental and socio-economic benefits. The concepts of grey, green, and smart infrastructure are presented, and the needs, benefits, and applications are investigated. Moreover, the advantages of using integrated smart, green nature-based solutions are discussed. A comprehensive literature review is undertaken with keyword searches, including journal papers, stakeholder and case study reports, and local authority action plans. The methodology adopts multimethod qualitative information review, including literature, case studies, expert interviews, and documentary analysis. Published data and information are analysed to capture the key concepts in implementing SGI systems, such as storm-water control, flood and coastal defense, urban waste management, transportation, recreation, and asset management. The paper investigates the elimination of silo approaches and the alleviation of the destructions caused by extreme weather events using these interdependent SGI systems supported by novel data-driven platforms to provide nature-based solutions to boost the health and wellbeing of the residents.

关键词： grey infrastructure     green infrastructure     smart infrastructure     smart and green combined infrastructure     smart cities     future cities    

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标题 作者 时间 类型 操作

Sugarcane bagasse amendment improves the quality of green waste vermicompost and the growth of

Linlin Cai, Xiangyang Sun, Dan Hao, Suyan Li, Xiaoqiang Gong, Hao Ding, Kefei Yu

期刊论文

A review on co-pyrolysis of agriculture biomass and disposable medical face mask waste for green fuel

期刊论文

绿色过程——变废为宝

Veena Sahajwalla

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

Green Road Construction Technologies in Guangzhou

Guan-feng An,Wen-yuan Huang,Jing-feng Zhang

期刊论文

Integrated approach to winery waste: waste generation and data consolidation

Margarida OLIVEIRA,Elizabeth DUARTE

期刊论文

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

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

机械化学法辅助荧光体浸出——稀土回收绿色工程法

Steff Van Loy, Koen Binnemans, Tom Van Gerven

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

Innovation Ecosystem for Green Smart City Building in China

Jin Chen

期刊论文

Potential advantages in combining smart and green infrastructure over silo approaches for future cities

Yamuna KALUARACHCHI

期刊论文