scholarly journals Environmental assessment of proposed waste to energy plant for municipal solid waste for Thane Municipal Corporation, India

2014 ◽  
Author(s):  
U. S. Kulkarni ◽  
H. T. Fendarkar ◽  
K. M. Nair
Author(s):  
Abraham Shu

The application of mass burn waste-to-energy (WTE) plants is becoming more popular in Asia, not just for proper disposal of municipal solid waste (MSW) like most plants in the western world do but stretched by many Asian plants to co-incinerate non-hazardous industrial waste (IW) in order to maximize the use of the plant facilities, hence to save costs from building facilities specifically for treating IW. As the plants are designed with conventional considerations practiced in the western world and the original designs are not oriented towards co-incinerating large percentages of IW, plant operators frequently face challenges such as unstable combustion quality, frequent boiler tube rupture amplified by co-incineration, inadequacy of the conventional control systems and other facilities to handle the co-incineration application. One co-incineration WTE plant in Taiwan is used as an example to illustrate the significance of these challenges, some measures taken to abate the problems and the cost impacts. Suggestions are also provided for technical management of co-incineration plants.


2021 ◽  
Author(s):  
Piotr Nowakowski ◽  
Mariusz Wala

Abstract Refuse-derived fuel (RDF) can be produced from combustible materials contained in municipal waste. After pre-treatment of waste it is possible shipping RDF a waste-to-energy plant (WtE). This article investigates energy and material flow of waste for different scenarios for production of RDF from bulky waste, separately collected waste, and mixed municipal solid waste (MSW). We compare the proportion of energy consumption in transportation, handling waste, and processing using data from the waste collection company in the South of Poland. The findings show the components of the reverse supply chain consuming the highest value of the energy. A model of material and energy flow has taken into consideration collection of waste and transportation by two categories of waste collection vehicles light commercial vehicles and garbage trucks. The shipping of RDF from pre-treatment facility uses – tipper semi-trailers and walking floor trailers. The findings of the study show production of RDF from municipal solid waste is consuming almost 10% of energy potential in RDF. Less energy is required for the production of RDF from bulky waste 2.2% – 4.8% or separately collected waste 1.7% – 4.1% depending on the efficiency of collection and selected vehicles. The transportation is consuming greatest portion of energy. For mixed municipal solid waste (MSW) it can reach 79%, for separated collection waste 90% and for bulky waste up to 92% of the total energy consumed. Comparing emissions for two categories of the collection vehicles there is no significant difference for the bulky waste collections. For mixed MSW and separately collected waste the emissions are higher for garbage trucks. As a recommendation for practitioners is optimization of routing to achieve higher collection rate for minimized route length. Transportation of RDF to WtE plant the vehicles with higher loading capacity are essential.


2020 ◽  
Vol 42 (3) ◽  
pp. 84-92
Author(s):  
O. Sigal ◽  
N. Pavliuk

The aim of this paper is to determine upcoming trends for use of the energy potential of municipal solid waste in Kyiv city, Ukraine. The current state and development prospects of this area of waste management is considered. This article presents the approaches to the use of energy potential of municipal solid waste in Poland.  It is demonstrated that the amount of Waste-to-Energy Plant in Poland has been growing dynamically after 2015. This approach is consistent with the goals set by the National Waste Management Strategy in Ukraine. An analysis of the energy potential of municipal solid waste in Kyiv showed that the energy efficiency of mixed solid waste incineration differs slightly from incineration of RDF combined with biogas. The main factors affecting the economic efficiency of thermal treatment of MSW are capital costs of the construction of plants with a high-quality system for flue-gas cleaning, operating costs of energy production and the cost of raw materials. Combined mixed waste incineration at Waste-to-Energy Plant entails only capital costs. The introduction of the technology of mechanical and biological treatment of MSW requires additional capital costs of the construction of MBT systems. Operating costs of the production of RDF and biogas increase fuel costs. It has been demonstrated that the most appropriate approach for burning of MSW in Kiev is the construction of a Waste-to-Energy Plant. The discrepancy between the amount of MSW produced in Kyiv city and the statistical population of the last is shown, which confirms that a significant number of unregistered residents live in the capital.


2021 ◽  
Vol 145 ◽  
pp. 111080
Author(s):  
M.T. Munir ◽  
Ahmad Mohaddespour ◽  
A.T. Nasr ◽  
Susan Carter

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jon Kepa Izaguirre ◽  
Leire Barañano ◽  
Sonia Castañón ◽  
José A. L. Santos ◽  
M. Teresa Cesário ◽  
...  

AbstractThe management of municipal solid waste is a major logistic and environmental problem worldwide. Nonetheless, the organic fraction of municipal solid waste (OFMSW) is a valuable source of nutrients which can be used for a variety of purposes, according to the Circular Economy paradigm. Among the possible applications, the bioproduction of a biodegradable polyester, poly(3-hydroxybutyrate) [P(3HB)], using OFMSW as carbon platform is a promising strategy. Here, an economic and environmental assessment of bacterial P(3HB) production from OFMSW is presented based on previously published results. The SuperPro Designer® software was used to simulate P(3HB) production under our experimental parameters. Two scenarios were proposed depending on the fermentation medium: (1) enzymatic hydrolysate of OFMSW supplemented with glucose and plum waste juice; and (2) basal medium supplemented with glucose and plum waste juice. According to our results, both scenarios are not economically feasible under our experimental parameters. In Scenario 1, the low fermentation yield, the cost of the enzymes, the labour cost and the energy consumption are the factors that most contribute to that result. In Scenario 2, the cost of the extraction solvent and the low fermentation yield are the most limiting factors. The possibility of using process waste as raw material for the generation of other products must be investigated to enhance economic feasibility. From an environmental viewpoint, the photochemical oxidation potential (derived from the use of anisole as extraction solvent) and the generation of acid rain and global warming effect (caused by the burning of fuels for power generation) are the most relevant impacts associated to P(3HB) production under our experimental parameters.


Sign in / Sign up

Export Citation Format

Share Document