scholarly journals Influencing factors of Solid Waste Management global cost and efficiency: a multi-objective optimization focusing on the collection system

2020 ◽  
Vol 197 ◽  
pp. 12001
Author(s):  
Sofia Russo ◽  
Vittorio Verda

Development of an Integrated Solid Waste Management (ISWM) system is a continuous challenge for local communities. These systems should be properly designed, paying particular attention to the optimal connection of their subsystems. Among them, the Solid Waste (SW) collection system has a primary influence. The design variables (e.g. unit collection basin and weekly removal) can be optimized according to the variation of external parameters (e.g. penetration of selective collection, population density). The objective is the minimization of specific collection cost, maintaining the maximum collection efficiency. Once the collection system is optimized, its influence on the entire SW treatment chain is evaluated. To this end, a multi-objective optimization is implemented taking into account the global cost and exergy efficiency of waste treatment. The analysed system is composed by a paper recycling plant for cardboard production and a Mechanical Biological Treatment plant for the Residual Unsorted Waste treatment, with production of Refused Derived Fuel.

2013 ◽  
Vol 5 (2) ◽  
pp. 193-198 ◽  
Author(s):  
MM Mian ◽  
AK Paul ◽  
MD Alam ◽  
M Rasheduzzaman ◽  
ASM Saifullah

The study was conducted to investigate the present solid waste management practice in Mymensingh municipal area especially in Ward 04 and 06. Huge solid wastes are generated every day in these wards but the waste management is not properly done because of their irregular waste management activities or unconsciousness. Maximum respondents discharged 1kg solid waste from their households per day and the respondents were 64%. Other 18% household discharged 0.5 kg and another 18% discharged 2 kg solid waste from their house per day. A majority percent of people dumps the produced solid waste in their living surroundings which produce various hazards in human health and environmental problems. This improper waste management can be managed by the regularity of management work, building awareness of the people and improving waste treatment. The municipality and other related NGOs should work together to solve these issues. It was revealed from the study that due to lack of people knowledge about solid waste management, lack of adequate budget for waste management, lack of available transport vehicles for waste management, lack of proper solid waste treatment plant etc. The total solid waste management system required following the recommendation which include proper planning, creating awareness, developing infrastructure, providing logistic support and finally involving NGOs, CBOs, public in this process. A sustainable solid waste management can be established which can lead the studied area to a healthy setting.DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14813 J. Environ. Sci. & Natural Resources, 5(2): 193-198 2012


2017 ◽  
Vol 35 (4) ◽  
pp. 387-399 ◽  
Author(s):  
Ali Mirdar Harijani ◽  
Saeed Mansour ◽  
Behrooz Karimi

The efficient management of municipal solid waste is a major problem for large and populated cities. In many countries, the majority of municipal solid waste is landfilled or dumped owing to an inefficient waste management system. Therefore, an optimal and sustainable waste management strategy is needed. This study introduces a recycling and disposal network for sustainable utilisation of municipal solid waste. In order to optimise the network, we develop a multi-objective mixed integer linear programming model in which the economic, environmental and social dimensions of sustainability are concurrently balanced. The model is able to: select the best combination of waste treatment facilities; specify the type, location and capacity of waste treatment facilities; determine the allocation of waste to facilities; consider the transportation of waste and distribution of processed products; maximise the profit of the system; minimise the environmental footprint; maximise the social impacts of the system; and eventually generate an optimal and sustainable configuration for municipal solid waste management. The proposed methodology could be applied to any region around the world. Here, the city of Tehran, Iran, is presented as a real case study to show the applicability of the methodology.


Author(s):  
Michel Jeanjacques ◽  
Isabelle Delaire ◽  
Rebecca Glévarec ◽  
Lionel Mandard ◽  
Jean-Louis Martin ◽  
...  

This summary presents the cleansing and dismantling operations currently realized on the CEA center of Saclay (CEA-Saclay). It was initiated at the beginning of the 2000 years a cleansing and dismantling program of the old Nuclear Licensed Facilities (NLF). Currently this program relates the dismantling operations to the Hot Laboratories (Laboratoires de Haute Activité: LHA) and the old workshops of the Liquid Waste Treatment Plant (Station des Effluents Liquides: STEL), the dismantling preparation of ULYSSE reactor and the dismantling studies to the Solid Waste Management Plant (SWMP; Zone de Gestion des Déchets Solides) and the OSIRIS reactor.


2019 ◽  
Vol 17 (1) ◽  
pp. 90
Author(s):  
Berliana Anggun Septiani ◽  
Dian Mita Arianie ◽  
Via Fide Aditya Andi Risman ◽  
Widhi Handayani ◽  
Istiarsi Saptuti Sri Kawuryan

The increase of solid waste production is a general problem in municipality, particularly of plastic waste. The durability, light-weight, anticorrosiveness, and inexpensiveness properties of plastic make it favorable to be used in daily life, including in Salatiga. However, plastic is one of some non-biodegradable materials that could lead to soil and water pollution as it contains toxic compounds such as aromatic hydrocarbons, phthalates, and organochlorine. Various studies in municipal solid waste management have been conducted. While those studies often applied various approaches separately, researches in regard to the role of stakeholders in municipal solid waste management are very limited. This study aims to explain the plastic waste management in Salatiga based on the role of the corresponding stakeholders. This qualitative study shows that there are four stakeholders who were involved in municipal plastic waste management in Salatiga. They were the households who generate wastes, the scavengers who sorts the wastes, Bank Sampah and collectors who have the same role in order to collect the wastes and treat the plastic wastes through reusing or recycling processes, and the government. Currently, efforts in waste treatment in Salatiga are focused on the system of collecting-tranferring-disposal mode, waste treatment by reuse and recycle processing, and landfilling. Reducing plastic consumption must take into account the sociocultural aspect and environmental awareness, as the people still interested to use plastic instead of using other materials in substitution. Finally, the role of government is central to educate the community in term of sorting activities and reducing waste production, build the capacity of Bank Sampah, and manage the role of scavengers and collectors. Other alternatives include creating synergy between the collectors and Bank Sampah, as well as ensuring final treatment of the unprocessed wastes disposed by collectors and Bank Sampah. 


2014 ◽  
Vol 878 ◽  
pp. 3-14 ◽  
Author(s):  
Bin Guo ◽  
Ya Xuan Liu

The rapid industrialization, continuous economic development, as well as increasing urban population and peoples living standards in Urumqi have resulted in a great increase of the total generated amount of municipal solid waste (MSW). Urumqi government strives to improve its municipal solid waste management (MSWM), and the MSW safe disposal rate was already up to 92.9% in 2011. This study presents an detailed overview on current MSWM practice in Urumqi municipality, including MSW characteristics and current status of MSW generation, collection, transportation and final disposal. It shows that more than 80% of MSW was final disposed by landfill and current landfill based MSWM system lack of effectiveness and efficiency. The major barriers and challenges that inhibit effective and efficient MSWM are imperfectness and inefficient enforcement of relevant policies, inappropriate waste treatment fee system, backward technology, insufficient public education and participation, as well as lack of fundamental research. Finally, to overcome such barriers, we propose a detailed integrated MSWM system to facilitate MSWM in Urumqi.


Author(s):  
Mohammed Omar Sahed Chowdhury ◽  
◽  
Ashef Ainan Baksh

Bangladesh is a low-lying riverine country. Unplanned growth of urban population causes audacious generation of solid wastes and strives immense pressure on existing services and environment. At present days, urban solid waste management is considered as most immediate and demanding environmental problems vexing Municipal authorities or urban governments in developing Asian countries like Bangladesh. Cities are now clashing with the serious problems of high amount of waste. The traditional concepts and inferior technologies of collecting waste are becoming incomplete as well as incompetent resulting more than half of the engendered solid wastes remain uncollected, disposed of regionally, forging the environmental view of cities quite murky and disheartening for the future. In waste management system, Germany is a role model for the world and the New German Closed-Cycle management is aiming to curve the waste management into resource management. The main intent of this research study is to categories in the solid wastes, discussing the issues of waste generation, a popular method for solid waste management, gasification schematic and waste-management model for Bangladesh. This study also explains Germany Closed-Cycle Management Act as well as waste treatment facilities, recovery, and disposal rate in Germany. Germany keeps very high-quality to preserve soil, air and water from the emissions integrated with waste storage and treatment.


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