scholarly journals Characterization and Optimization of Incinerated Municipal Solid Waste Fly Ash as a Cement Substitute Material in Concrete at Reppie Waste to Energy Plant, Ethiopia, East Africa

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Simegn Abebe ◽  
Abebe Sisay ◽  
Worku Abebe
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
East Africa ◽  
Waste To Energy ◽  
Energy Plant ◽  
Substitute Material

Technical Challenges and Abatements of a Mass Burn Waste-to-Energy Plant Co-Incinerating Municipal Solid Waste and Industrial Waste

2004 ◽  
Author(s):  
Abraham Shu
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Industrial Waste ◽  
Waste To Energy ◽  
Western World ◽  
Technical Management ◽  
Energy Plant ◽  
Unstable Combustion ◽  
The Cost ◽  
Proper Disposal

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.

scholarly journals The Evaluation of Energy Consumption in Transportation and Processing of Municipal Waste for Recovery in A Waste-To-Energy Plant A Case Study of Poland

2021 ◽  
Author(s):  
Piotr Nowakowski ◽  
Mariusz Wala
Keyword(s):  
Energy Consumption ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Municipal Waste ◽  
Waste To Energy ◽  
Waste Collection ◽  
Energy Potential ◽  
Energy Plant ◽  
Significant Difference ◽  
Pre Treatment

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.

scholarly journals CURRENT STATE AND PROSPECTS OF MUNICIPAL SOLID WASTE MANAGEMENT IN KYIV CITY, UKRAINE

2020 ◽  
Vol 42 (3) ◽  
pp. 84-92
Author(s):  
O. Sigal ◽  
N. Pavliuk
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Incineration ◽  
Waste To Energy ◽  
Operating Costs ◽  
Energy Potential ◽  
Capital Costs ◽  
Current State ◽  
Energy Plant

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.

Municipal solid waste-to-energy processing for a circular economy in New Zealand

2021 ◽  
Vol 145 ◽  
pp. 111080
Author(s):  
M.T. Munir ◽  
Ahmad Mohaddespour ◽  
A.T. Nasr ◽  
Susan Carter
Keyword(s):  
New Zealand ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Circular Economy ◽  
Waste To Energy ◽  
Energy Processing

A mini-review of heavy metal recycling technologies for municipal solid waste incineration fly ash

2021 ◽  
pp. 0734242X2110039
Author(s):  
Huan Wang ◽  
Fenfen Zhu ◽  
Xiaoyan Liu ◽  
Meiling Han ◽  
Rongyan Zhang
Keyword(s):  
Fly Ash ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Incineration ◽  
Electrochemical Process ◽  
Chemical Extraction ◽  
Air Pollution Control ◽  
Municipal Solid Waste Incineration ◽  
Mswi Fly Ash ◽  
Metal Recycling

This mini-review article summarizes the available technologies for the recycling of heavy metals (HMs) in municipal solid waste incineration (MSWI) fly ash (FA). Recovery technologies included thermal separation (TS), chemical extraction (CE), bioleaching, and electrochemical processes. The reaction conditions of various methods, the efficiency of recovering HMs from MSWI FA and the difficulties and solutions in the process of technical development were studied. Evaluation of each process has also been done to determine the best HM recycling method and future challenges. Results showed that while bioleaching had minimal environmental impact, the process was time-consuming. TS and CE were the most mature technologies, but the former process was not cost-effective. Overall, it has the greatest economic potential to recover metals by CE with scrubber liquid produced by a wet air pollution control system. An electrochemical process or solvent extraction could then be applied to recover HMs from the enriched leachate. Ongoing development of TS and bioleaching technologies could reduce the treatment cost or time.

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