Landfill Minimization and Material Recovery Via Waste Gasification in a New Waste Management Scheme

2016 ◽  
pp. 71-94
2020 ◽  
Vol 1 (1) ◽  
pp. 113-118
Author(s):  
Rabindra Prasad Dhakal

The SARS-CoV-2 or/andCOVID-19 may have contaminated the wastes, which need especial precaution as suggested by WHO guidelines. WHO also suggested that no cases have been reported of infection from the waste workers working on infected wastes so far. However, in case of Nepal, 50% wastes used to be collected at the time 2011, which seems significantly improving as high as 81% in sampled areas. In COVID period, the concern was raised on safety issues of waste workers as suggested by RDT positive, hence, the public perception of waste management, the scope of recycling of wastes and up streaming of waste materials as economical commodities with proper intervention of technologies, awareness and behavior is incorporated in this study. It is estimated that the total Plastic wastes of major city centers could be significantly turned into useful products including fuel. For example, Kathmandu Valley can extract 24,298 KL oil from wastes plastics, which is based on calculation of waste per capita, waste composition and conversion ratio. Hence, the COVID-19 pandemic could be turn into opportunities in the sector of waste management provided we act wisely.


Author(s):  
Heiner Zwahr

Waste to energy is only one way of handling waste, material recovery is another aspect of sustainable waste management. This is actually nothing new and has always been part of the operation of WTE (Waste to Energy) plants in Hamburg. In descriptions of the first waste incineration plant in Hamburg, which started operation in 1896, it was stated that “the fly ash” collected in the ash chambers was used as filler material for the insulation of ceiling cavities. Its use in the sandwich walls of money safes was expressly recommended by the members of the urban refuse collection authority. Another lucrative trade was the sorting of scrap iron. It was separated from the incineration slag with magnets. The slag itself was said to be as sterile as lava, as hard as glass, as useful as bricks, and it was a profitable side product of waste incineration. The crushed incinerator slag was evidently so much in demand in road construction and as an aggregate in concrete production that demand could often not be met in the building season, even though it was stored through the winter, [1,2,3].


Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1457 ◽  
Author(s):  
Md Tasbirul Islam ◽  
Nazmul Huda

This paper reviews around 41 articles providing the trends, characteristics, research gaps and challenges of these studies that may help e-waste management-related academics and practitioners with an overview of the need for such tool to be applied. The results and highlighted future research perspectives discussed in this study will definitely help to analyze e-waste management systems with more critical aspects, i.e., hidden and known flows of waste products and associated materials, economic assessment of material recovery and the role of responsible authorities.


Procedia CIRP ◽  
2018 ◽  
Vol 69 ◽  
pp. 974-979 ◽  
Author(s):  
Edwin Wansi ◽  
Pierre D’Ans ◽  
Louise Gonda ◽  
Tiriana Segato ◽  
Marc Degrez

2017 ◽  
Vol 35 (10) ◽  
pp. 1093-1093

Operating and environmental performances of commercial-scale waste gasification and melting technology by Nobuhiro Tanigaki, Yasuka Fujinaga, Hirohisa Kajiyama, and Yoshihiro Ishida. Waste Management & Research 2013; 31: 1118–1124, DOI: 10.1177/0734242X13502386. The authors regret that they omitted the following declaration of conflicting interest in the article: Declaration of Conflicting Interest At the time of publication, all authors were employed by Nippon Steel & Sumikin Engineering Co., Ltd. Technology developed by Nippon Steel & Sumikin Engineering Co., Ltd is reported on in this manuscript.


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