Research Progress in Treatment Technology of Municipal Solid Waste in China

2019 ◽  
Vol 09 (05) ◽  
pp. 717-725
Author(s):  
亚琪 贾
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Research Progress ◽  
Treatment Technology

Innovative Design and Manufacturing Technology of High Temperature Air Combustion (HTAC) Municipal Solid Waste Incinerator

2015 ◽  
Vol 789-790 ◽  
pp. 377-381 ◽  
Author(s):  
Somrat Kerdsuwan
Keyword(s):  
High Temperature ◽  
Thermal Treatment ◽  
Municipal Solid Waste ◽  
Combustion Chamber ◽  
Energy Saving ◽  
Solid Waste ◽  
Flue Gas ◽  
Operating Cost ◽  
Treatment Technology ◽  
Combustible Gas

Incineration is a Thermal Treatment Technology (3Ts) that could be expressed as the way to get rid of waste effectively with the reduction of its mass and volume. However, to control the combustion process efficiently, especially combustion temperature, with low energy content in Municipal Solid Waste (MSW), an additional fuel is needed and leads to increase of operating cost compared with other disposal option. High Temperature Air Combustion (HTAC) has been successfully demonstrated in a lab-scale incinerator for energy saving and pollutant reduction, especially NOx. This article has the objective to design and manufacture the prototype scale High Temperature Air Incinerator with a capacity to treat MSW of 12 Ton per day. The system consists of an automatic feeding machine to feed the waste into the primary combustion chamber (PCC) where the combustion takes place. The push ram is used to push the burning waste and fall down to the lower hearth. Primary combustion air is supplied into PCC at the amount lower than the stoichiometric requirement to produce the combustible gas which is flown into the Secondary Combustion Chamber (SCC) located above PCC. Secondary combustion air is injected to react with combustible gas to convert to the product of complete combustion. A part of hot flue gas which is flew out from SCC is reverted and mixed with fresh air, in order to reduce oxygen concentration, before passing through the heat exchanger tube bundle which is placed inside SCC in order to exchange heat with hot flue gas. To manufacture the designed incinerator, the detail of materials used as well as the frabication method is explained. It has been shown that HTAC can be applied for thermal destruction of waste successfully, in term of energy saving and pollutant free. Benefits of this research work will promote the using of thermal treatment technology of dispose of MSW with lower operating cost and lower pollutants.

Will anaerobic digestion of solid waste survive in the future?

2006 ◽  
Vol 53 (8) ◽  
pp. 187-194 ◽  
Author(s):  
L. De Baere
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Biological Treatment ◽  
Operating Costs ◽  
Organic Fraction ◽  
Treatment Technology ◽  
Treatment Techniques ◽  
The Future ◽  
Viable Treatment

Anaerobic digestion has captured a significant share of the European market for the biological treatment of the organic fraction in municipal solid waste. Almost 4 million ton per year in digestion capacity has been installed through the construction of more than 120 full-scale plants. Not all plants have been equally successful, due to poor planning, design or bad operation. This, besides higher than expected investment and operating costs, may have slowed down the growth of anaerobic digestion of solid waste. However, an evaluation of the development of anaerobic digestion over the last 15 years shows that there is now a greater diversity in application, a wider range in types of systems and suppliers, and a continued increasing rate of implementation throughout most parts of Europe. New alternative treatment techniques have not seen the same level of success as anaerobic digestion. Anaerobic digestion has been established as a viable treatment technology for the organic fraction of municipal solid waste and will most likely play an even more important role in the future.

Influence of effective stress and dry density on the permeability of municipal solid waste

2018 ◽  
Vol 36 (5) ◽  
pp. 471-480 ◽  
Author(s):  
Zhenying Zhang ◽  
Yingfeng Wang ◽  
Hui Xu ◽  
Yuehua Fang ◽  
Dazhi Wu
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Effective Stress ◽  
Field Tests ◽  
Test Methods ◽  
Research Progress ◽  
Dry Density ◽  
Permeability Characteristics ◽  
Relevant Topic ◽  
Leachate Water

A landfill is one of the main sites for disposal of municipal solid waste and the current landfill disposal system faces several problems. For instance, excessive leachate water is an important factor leading to landfill instability. Understanding the permeability characteristics of municipal solid waste is a relevant topic in the field of environmental geotechnical engineering. In this paper, the current research progress on permeability characteristics of municipal solid waste is discussed. A review of recent studies indicates that the research in this field is divided into two categories based on the experimental method employed: field tests and laboratory tests. This paper summarizes test methods, landfill locations, waste ages, dry densities and permeability coefficients across different studies that focus on permeability characteristics. Additionally, an experimental study on compressibility and permeability characteristics of fresh municipal solid waste under different effective stresses and compression times was carried out. Moreover, the relationships between the permeability coefficient and effective stress as well as dry density were obtained and a permeability prediction model was established. Finally, the experimental results from the existing literature and this paper were compared and the effects of effective stress and dry density on the permeability characteristics of municipal solid waste were summarized. This study provides the basis for analysis of leachate production in a landfill.

scholarly journals Research construction criterions assessment the effectiveness of three methods of municipal solid waste in North West solid waste treatment complex, Cu Chi

2014 ◽  
Vol 17 (2) ◽  
pp. 90-101
Author(s):  
Duy Quang Ngo ◽  
Hai Thanh Le
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Treatment ◽  
Process Efficiency ◽  
Treatment Technology ◽  
North West ◽  
Case Research ◽  
Environment And Health ◽  
Solid Waste Treatment ◽  
Efficient Processing

In the recent years, speed of urbanization and industrialization had increased quickly and strongly which continued to increase in the next years. It has brought about pressure on the environment and community. We have many difficulties, existence which need to solve as treatment waste water and air pollution, solid waste is also a big challenge, it is menace to the environment and health of community. Efficient processing of municipal solid waste is a effective solution. We need criterions to assessment. From the practical requirement, research had made criterions to assess the effectiveness of composting technology, waste inceration technology, sanitary landfill technology. The results of the application of this criterion (application to assess the effectiveness of the treatment technology of municipal solid waste - in case research in North West Solid Waste Treatment Complex at 3 business) showed reasonable, effective which raise process efficiency, improvement and perfection of the treatment technology of municipal solid waste. Criterions can apply with business, government in treatment municipal solid waste.

A Mini Review of Technological Options for Disposal of Municipal Solid Waste in India

2021 ◽  
Vol 7 (1) ◽  
pp. 2-12
Author(s):  
Ravindra Verma ◽  
Prakash Singh Bisen
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Treatment Options ◽  
High Energy ◽  
Treatment Technology ◽  
Environmental Aspect ◽  
Decentralized System ◽  
Environmental Threats ◽  
Expert Opinions ◽  
Technological Options

Background: It has been seen that 90% of municipal solid waste is disposed off in open dumps and landfill sites, causing problems for the environment, and public health in developing countries. Many technological options can convert waste into various forms of energy. Heat and electricity can be generated and utilized for specific thermodynamic conversion processes and different types of biofuel can also be extracted from the organic municipal solid waste. Objective: This study evaluates the different treatment options available to convert waste into energy, and also concludes its environmental aspect with suggestions, which may be beneficial for encouraging the researchers to work for further improvement in this aspect. Methods: For each technological area, results from the literature review and the different expert opinions were considered to provide an analysis of the treatment technology, identify the internal and external environmental threats and important gaps in treatment technologies for MSW in India. Results: It has been observed from various studies that the pyrolysis/gasification is the suitable option for the treatment of different compositions of solid waste with high energy recovery in India, while bio-methanation is suitable for a decentralized system with a high energy value, and a minimum level of pollution & health hazards. Conclusion: The study and observations show that there are multiple technological options for the treatment of municipal solid waste. Research and development in the MSW sector is not a priority in India, therefore, it has been recognized that expert research advice is required while selecting technology as well as for deciding the tools and techniques to handle this issue.

scholarly journals Management of municipal solid waste in Croatia: Analysis of current practices with performance benchmarking against other European Union member states

2018 ◽  
Vol 36 (8) ◽  
pp. 663-669 ◽  
Author(s):  
Luka Traven ◽  
Igor Kegalj ◽  
Iva Šebelja
Keyword(s):  
Gross Domestic Product ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Biological Treatment ◽  
Domestic Product ◽  
Recycling Rate ◽  
Treatment Technology ◽  
Member States ◽  
Eu Member States ◽  
Waste Production

The European Commission has adopted a very ambitious circular economy package and has consequently revised many legislative proposals on waste. The new targets include achieving a recycling rate of 65% by 2030 and imposing a cap on landfilled waste to no more than 10% (as a percentage of weight). Using available European and national databases on municipal solid waste indicators, we have analysed municipal solid waste production trends for Croatia and have benchmarked the indicators against other EU member states and EU averages. Our analysis points out that the production of municipal solid waste has steadily risen over the last two decades. Although Croatia produces a relatively low amount of municipal solid waste compared with other EU countries and EU averages, gross domestic product adjusted waste production reveals that for every euro of gross domestic product Croatia produces substantial amounts of municipal solid waste. As a matter of fact, among all the EU member states, only Bulgaria had a worse performance than Croatia. Regarding recycling rates, Croatia recycles 15% of its municipal solid waste and incinerates approximately 3% (by weight). The rest (82% by weight) is currently being landfilled. Regarding the treatment of waste, Croatia has implemented mechanical–biological treatment technology, but our analysis reveals that the initial number of mechanical–biological treatment plants will likely have to be scaled down taking into consideration the new EU waste management targets.

Research on Leachate Treatment Process Selection of Guangxi Municipal Solid Waste Plant

2012 ◽  
Vol 260-261 ◽  
pp. 1013-1016
Author(s):  
Hao Cheng ◽  
Ming La ◽  
Jian Hua Xiong
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Treatment Process ◽  
Process Selection ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Comprehensive Investigation ◽  
Treatment Technologies ◽  
Waste Leachate ◽  
Selection Of

Based on the research of municipal solid waste leachate treatment technology in China, aiming at several typical leachate treatment technologies in the Guangxi area, this paper has made analyses and studies. It has made comprehensive investigation of materials, and has obtained the final leachate treatment technology scheme applicable in the Guangxi area.

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