Waste biorefineries: Enabling circular economies in developing countries

Nizami, Abdul-Sattar; Rehan, Mohammad; Waqas, M.; Naqvi, Muhammad; Ouda, Omar K. M.; Shahzad, Khurram; Miandad, R.; Khan, Mohammad Zain; Syamsiro, Mochamad; Ismail, Iqbal Mohammad Ibrahim; Pant, Deepak

doi:10.1016/j.biortech.2017.05.097

Cited by 462 publications

(182 citation statements)

References 67 publications

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“…Compared with developed countries, developing countries faced greater challenges in the effective use of incineration and MSW generation, since their solid waste contents have lower heating value and most of the countries do not have clean incineration technology [28]. Besides institutional and policy reasons, poor environmental education is another factor that affects solid waste disposal [11].…”

Section: Literature Reviewmentioning

confidence: 99%

Solid Waste Disposal in Chinese Cities: An Evaluation of Local Performance

Zhou

Sun

2017

Sustainability

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China meets increasingly serious solid waste problems and has adopted various policies in response in recent years. Meanwhile, few studies have investigated the performance of solid waste disposal through statistical analysis with empirical data. This study examines provincial resource use policy's influence on the comprehensive utilization rate of industrial solid waste in Chinese cities. Through comparing results for statistical analysis in the year 2009 and 2015 by multiple linear regression analysis, this study analyzes similarities and differences in the drivers for solid waste disposal in the era of the 11th Five-Year Plan and the 12th Five-Year Plan in China. It finds that the adoption of resource use policy positively increases the comprehensive utilization rate of industrial solid waste. Other factors such as industrial SO 2 emission, local environmental regulations, GDP per capita, population density and educational level also affect industrial solid waste disposal. Therefore, China should continue implementing solid waste disposal policies, upgrade current industrial systems, push forward economic and social reform and increase environmental education to enhance the effectiveness of solid waste disposal for long-term sustainable development.

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Section: Literature Reviewmentioning

confidence: 99%

Solid Waste Disposal in Chinese Cities: An Evaluation of Local Performance

Zhou

Sun

2017

Sustainability

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“…The use of municipal solid waste (MSW) can contribute to the increase of renewable energy share in the final energy production [4][5][6][7][8][9]. There are several advantages of recovering energy from MSW, such as providing local source of renewable energy and decreasing the volume of solid waste dumped in landfills, which in turn may have positive effects on carbon emissions since this process avoids methane emissions from landfills and carbon dioxide from fossil fuels [10].…”

Section: Introductionmentioning

confidence: 99%

Status and Opportunities for Energy Recovery from Municipal Solid Waste in Europe

Scarlat

Fahl

Dallemand

2018

Waste Biomass Valor

168

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This paper provides an overview of waste generation and treatment operations in the European Union (EU) and other European countries and an analysis of the possibilities for the use of municipal solid waste (MSW) for energy production. A geographic information system based methodology was developed to investigate the spatial distribution of MSW and to identify the optimal location for new potential waste-to-energy in Europe. In 2016, there were 512 plants in Europe, with 251 combined heat and power plants, 161 electricity-only and 94 heat-only plants, which provide a total incineration capacity of 93 million tonnes. The suitability analysis showed that there is a potential to implement around 248 new waste to energy plants in the EU and 330 in all Europe, with a total capacity of 37 and 50 million tonnes, respectively. This represents an additional primary energy production of 260 PJ (6.2 Mtoe) in the EU, in comparison to 406 PJ (9.7 Mtoe) already produced in 2015, and about 352 PJ (8.4 Mtoe) in all European countries considered in this analysis.

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“…The concept of bio-refinery results from the necessity of sustainable management of resources and promotion of efficient use of biomass. Bio-refineries correspond with the idea of the circular economy and bioeconomy [4], permitting recovery of various substances and energy from waste used for production of value-added bioproducts. Recovery of such value-added bioproducts aims at the replacement or reduction of the use of fossil fuels and excavation of natural resources necessary for their conventional production [5].…”

Section: Introductionmentioning

confidence: 99%

Ammonium Sulphate from a Bio-Refinery System as a Fertilizer—Agronomic and Economic Effectiveness on the Farm Scale

et al. 2019

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This paper presents the results of a pot experiment aimed at the assessment of the agronomic and economic effectiveness of ammonium sulphate from an agro bio-refinery (Bio-AS). The Bio-AS was obtained by means of the ammonia stripping process from effluent after struvite precipitation from a liquid fraction of digestate. The agronomic effectiveness of Bio-AS in a pot experiment with maize and grass in two different soils, silty loam (SL) and loamy sand (LS), was investigated. The fertilising effect of Bio-AS was compared to commercial ammonium sulphate fertilizer (Com-AS) and control treatment (without fertilisation). The crop yields were found to depend on both soil type and nitrogen treatment. Crop yields produced under Bio-AS and Com-AS exceeded those under control treatments, respectively for SL and LS soils, by 88% and 125% for maize and 73% and 94% for grass. Crop yields under Bio-AS were similar to those under the Com-AS treatment. The fertilizer use of Bio-AS affected the chemical composition of plants and soil properties similarly as Com-AS. This suggests that Bio-AS from a bio-refinery can replace industrial ammonium sulphate, resulting in both economic and environmental benefits.Energies 2019, 12, 4721 2 of 15 ammonia (NH 3 ), nitrous oxide (N 2 O), and hydrogen sulphide (H 2 S) to the atmosphere [8,9]. Due to intensification of animal production observed in EU agriculture, the European Commission regulated the use of organic fertilizers in the Nitrates Directive adopted on 12 December 1991. It aimed at water quality protection across Europe by prevention of pollution of the ground and surface waters with nitrates from agricultural sources and by promoting the use of good farming practices. One of the major restrictions was the limitation of the amount of nitrogen applied, taking into account the crop needs, all nitrogen inputs and soil nitrogen supply, as well as the maximum amount of livestock manure to be applied (corresponding to 170 kg nitrogen per hectare per year) [10]. The Dutch government negotiated special derogation allowing use of 250 kg·N·ha −1 in organic fertilizers under the condition of more efficient use of nitrogen from animal sources, which is included in the Dutch Manure Policy [11] and also encompasses regulations limiting the use of P from organic fertilizers. Many studies report considerable farm-gate N surplus for dairy farms per unit area, for example 138 kg N ha −1 year −1 in Sweden, 223 kg·N·ha −1 ·year −1 in the Netherlands, and 240 kg·N·ha −1 ·year −1 in Denmark [12]. So far, the dominant method of processing of animal waste has been anaerobic digestion. The process results in the production of biogas and digestate [13]. Biological conversion of organic compounds during anaerobic digestion considerably reduces the odour as compared to untreated manures [14][15][16]. Both the nitrogen and phosphorus content in the digestate are comparable with untreated manure; however, in contrast to livestock manures, the digestate is characterized by the presence of the nutrients in solub...

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Waste biorefineries: Enabling circular economies in developing countries

Cited by 462 publications

References 67 publications

Solid Waste Disposal in Chinese Cities: An Evaluation of Local Performance

Solid Waste Disposal in Chinese Cities: An Evaluation of Local Performance

Status and Opportunities for Energy Recovery from Municipal Solid Waste in Europe

Ammonium Sulphate from a Bio-Refinery System as a Fertilizer—Agronomic and Economic Effectiveness on the Farm Scale

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