Energy recovery or material recovery for MSW treatments?

Chen, Chung-Chiang; Chen, Yi-Tui

doi:10.1016/j.resconrec.2013.02.003

Cited by 21 publications

(17 citation statements)

References 23 publications

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“…Source reduction, generation, recovery and disposal [27,28] constitute some of the most important segments of integrated MSW management (IMSWM). Some of the wastes are recovered through recycling and composting, for example, enhancing the organic component of the waste through anaerobic digestion processes, even operating on very particular wet fractions [29,30], and others converted into thermal or electrical power [31,32]. In the framework of the EU directives, the Member States have encouraged systems of selective collection (SC) and the recycling of several MSW components.…”

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confidence: 99%

Urban and Rural MSW Stream Characterization for Separate Collection Improvement

2015

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Abstract:In the new legislation framework enacted by new member countries of the European Union (EU), the characterization of municipal solid waste (MSW) represents an important instrument for local governments and sanitation operators in setting and achieving targets for waste recycling and recovery. This paper presents the results of a study conducted in accordance with the Romanian methodology for domestic wastes characterization ROMECOM, aiming to provide a proper basis for developing clear and realistic forecasts in current municipal waste management, based on MSW composition and generation rate. The analyzed MSW came both from areas where the waste is collected in mixed and separate ways, in urban and rural areas. The MSW composition by fraction is detailed for dense urban areas, urban areas, rural and touristic areas from Romania. Based on these results, the MSW composition was determined for the eight development regions in Romania, and a generation rate of 0.9·kgMSW inhabitant by selective collection (different efficiencies for urban and rural areas) with subsequent recovery of the separated materials and energy recovery of the residual waste in a large-scale waste to energy (WTE) plant.

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confidence: 99%

Urban and Rural MSW Stream Characterization for Separate Collection Improvement

2015

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“…In this case, the calorific value of each waste fraction, contributing to outputs of electricity production, is used as the measure of relative importance. The data of caloric values for food waste, paper, metal products, glass and plastics/rubber shown in Chen and Chen [39] are employed. As the caloric values of these waste fractions vary greatly, the relative importance (RI) is developed in terms of…”

Section: Importance-performance Analysismentioning

confidence: 99%

“…The results suggest that MSW management authorities should pay more attention to the recycling of food waste and see it as the most priority item to recycle. In fact, food waste should be avoided to enter incinerator due to its negative impacts on the both the incinerators and the environment [39]. Chen and Chen [39] compare material recycling and energy recycling for some waste fractions and suggests that material recovery for food waste is more appropriate due to its low caloric value of 4.18 MJ/kg.…”

Section: Importance-performance Analysismentioning

confidence: 99%

“…In fact, food waste should be avoided to enter incinerator due to its negative impacts on the both the incinerators and the environment [39]. Chen and Chen [39] compare material recycling and energy recycling for some waste fractions and suggests that material recovery for food waste is more appropriate due to its low caloric value of 4.18 MJ/kg. The results of IPA imply that recycling of food waste requires immediate attention and thus MSW management should see it as a priority task by providing new mechanism to speed up diffusion effects and encourage recycling performance.…”

Section: Importance-performance Analysismentioning

confidence: 99%

“…Among the waste recycled, recycling rate of waste paper was 22.99% in 2012, ranked the top, higher than food waste (11.17%), metal products (9.47%), plastics/rubber (4.29%) and glass products (3.24%). Chen and Chen [39] suggest that waste paper may be more appropriate to dispose through energy recovery rather than material recovery due to high waste caloric values contained in waste paper. Therefore, management authorities may divert efforts of recycling from waste paper to other waste fractions.…”

Section: Importance-performance Analysismentioning

confidence: 99%

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The Diffusion Effect of MSW Recycling

Chen

Yang

2017

Sustainability

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Abstract:The purpose of this paper is to compare the recycling performance for some waste fractions selected including food waste, bulk waste, paper, metal products, plastics/rubber and glass products and then to develop some directions for the future improvements. The priority of each waste fraction for recycling is also analyzed by using an importance-performance analysis. Traditionally, the recycling rate that is calculated by the ratio of waste recycled to waste collected is used as an indicator to measure recycling performance. Due to a large variation among waste fractions in municipal solid waste (MSW), the recycling rate cannot reflect the actual recycling performance. The ceiling of recycling rate for each waste fraction estimated from the diffusion models is incorporated into a model to calculate recycling performance. The results show that (1) the diffusion effect exists significantly for the recycling of most recyclables but no evidence is found to support the diffusion effect for the recycling of food waste and bulk waste; (2) the recycling performance of waste metal products ranks the top, compared to waste paper, waste glass and other waste fractions; (3) furthermore, an importance-performance analysis (IPA) is employed to analyze the priority of recycling programs and thus this paper suggests that the recycling of food waste should be seen as the most priority item to recycle.

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Transforming Waste to Wealth, Achieving Circular Economy

et al. 2022

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Wastes are usually thought of as unwanted or unusable materials. Waste is any substance which is discarded after primary use, or considered worthless, defective, and of no use. The term is often subjective, as not every application has identical raw material requirements and sometimes even objectively inaccurate. A starting point towards managing waste is the division in basic categories, ranging from municipal and agricultural waste to radioactive and explosive waste. Through proper collection of municipal solid waste, very important metals and other valuable sources can be recovered and used in new products, thus achieving significantly lower production cost and environmental impact. Success stories in waste management are reported in countries around the world. These typically showcase optimal waste transformation to wealth. Furthermore, applied waste management methods are specified. These actions should be adapted by every organization handling waste. At a managerial level, these must be considered as potential resources, commodities with significant economic, environmental and sociological added value. This paper attempts to identify and present the valuable resources and products that exist in waste streams, focusing mainly on their monetary value, based on data recovered from literature and raw materials stock markets. Municipal solid waste and non-hazardous commercial and industrial wastes are considered in this context. The methodology followed was based on identification and analysis of cities-communities and countries that have successfully adopted waste management policies towards circular economy and waste to wealth transformation.

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Energy recovery or material recovery for MSW treatments?

Cited by 21 publications

References 23 publications

Urban and Rural MSW Stream Characterization for Separate Collection Improvement

Urban and Rural MSW Stream Characterization for Separate Collection Improvement

The Diffusion Effect of MSW Recycling

Transforming Waste to Wealth, Achieving Circular Economy

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