scholarly journals Waste Recycling System for a Tourism City in Vietnam: Situation and Sustainable Strategy Approach – Case Study in Hoi An City, Vietnam

Author(s):  
S T Pham Phu ◽  
T Fujiwara ◽  
P V Dinh ◽  
K T Hoa
2010 ◽  
Vol 29 (11) ◽  
pp. 1213-1221 ◽  
Author(s):  
Yuji Hara ◽  
Takashi Furutani ◽  
Akinobu Murakami ◽  
Armando M. Palijon ◽  
Makoto Yokohari

Using the solid waste management programmes of three barangays (the smallest unit of local government in the Philippines) in Quezon City, Metro Manila, as a case study, this research aimed to further the development of efficient organic waste recycling systems through the promotion of urban agricultural activities on green and vacant spaces. First, the quantity of organic waste and compost produced through ongoing barangay projects was measured. The amount of compost that could potentially be utilized on farmland and vacant land within the barangays was then identified to determine the possibility of a local recycling system. The results indicate that, at present, securing buyers for compost is difficult and, therefore, most compost is distributed to large neighbouring farm villages. However, the present analysis of potential compost use within the barangay demonstrates that a more local compost recycling system is indeed feasible.


2020 ◽  
Vol 169 ◽  
pp. 02010
Author(s):  
Roman Mamadzhanov ◽  
Yulia Zakirova ◽  
Mykhadi Umarov

The article presents the results of the research carried out by the foreign ecologists, particularly the study of the system of municipal waste management in the municipality of Maienfeld, Switzerland. The total amount of municipal waste has been calculated. The systems of municipal waste collection, sorting, transportation and recycling have been studied. Besides, four possible scenarios of waste recycling in Maienfeld have been developed. Moreover, the environmental assessment of the waste recycling system by GHG/SLCP emissions has been conducted, and the impact of recycling on the climate has been determined. Finally, taking into account the results of the research, the best scenario of recycling has been proposed.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wogene Tesfaye ◽  
Daniel Kitaw

Purpose Plastics waste management is a critical agenda for the global community. Recycling is the most important strategy option for recovering plastics wastes. This study aims to review reverse logistics (RL) implementation practices and conceptualizing it to the plastic recycling system. Design/methodology/approach The paper is organized after evaluating the studies related to plastics waste recycling and analyzing the available frameworks to use RL as a strategic tool. Findings The paper has investigated that previous research on RL implementation focused on a few stages of RL activities and did not include the most important issues. However, for successful RL implementation, taking into account the whole stage and including the most important factors is very important. To elaborate on this finding a new conceptual framework is developed. Research limitations/implications The paper is fully based on literature review and international reports. The developed framework is required for further empirical validation in the plastics sector. Practical implications The paper has considered the important issues and the applications of those factors that can improve plastics recycling performances. Social implications This study can enhance the active involvement of main actors (plastics producers, users, municipal and recyclers) in the plastics recycling system. Originality/value This paper deliberates on how RL can be conceptualized and implemented in plastics recycling systems in considering the most important factors for plastics recycling.


2017 ◽  
Vol 142 ◽  
pp. 910-915
Author(s):  
Abdul-Sattar Nizami ◽  
Mohammad Rehan ◽  
Muhammad Naqvi ◽  
Omar Ouda ◽  
Khurram Shahzad ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6620 ◽  
Author(s):  
Andrzej Duda ◽  
Arkadiusz Fenicki ◽  
Patryk Molski ◽  
Elżbieta Szostak ◽  
Piotr Duda

The paper describes an installation for the degradative depolymerization of polyolefin materials obtained from wastes, hereinafter also referred to as depolymerization for simplicity. The plant, on an industrial scale, is one of the few operating in Poland. However, it is one of the most modern plants in this industry. Design solutions, construction of particular technological lines, compliance with national and EU regulations and the high level of process safety were described in this paper as well as compared to other plants of this type in Poland. Different solutions were presented in drawings and photos of the plant and in fragmentary technological diagrams. The types of waste and the methods of their processing by the plant were also characterized in accordance with the applicable regulations. The waste throughput is from 2000 to 4000 kg/h, while the efficiency of the depolymerization installation itself is 1500 kg/h. The industrial-scale depolymerization process is carried out in one or two stages: by homogenization (extraction) at a temperature up to 200 °C and depolymerization at temperatures up to 400 °C. The obtained products (energy goods) are sold for further processing. The processes, devices and methods are characterized by novel, innovative solutions, covered by a number of patents, which are also described below. The advantage of the presented technology is the substantial simplification of the process and thereby a considerable reduction in investment costs. Among others, the processes of distillation and rectification (low- and negative-pressure) were abandoned.


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