Back to the Future: Lesson Learned in Implementing Emerging Technologies

Author(s):  
Alan S. Cohen ◽  
Shawn Worster ◽  
Michael Brown

“Energy cost increases are expected to continue.... The impact of these energy cost increases on attractiveness of energy recovery could be significant.” “A number of new technological developments have been underway over the past few years that are now becoming available as full-scale systems and that are greatly expanding the opportunities for energy recovery from mixed municipal waste.” These sound like statements from today’s headlines or the latest marketing brochures reflecting the promise of emerging waste management technologies. The reality is that these statements were made over thirty years ago. Communities planning on implementing any new technology as part of their solid waste management program should proceed with caution. After all, the second quote above was followed by the following statement. “These systems have generally been developed by firms in private industry as new business ventures. Monsanto, Union Carbide, Devco, Garrett Research and Development (a division of Occidental Petroleum), Hercules, Black-Clawson, Horner-Schiffrin and Combustion Equipment Associates have been some of the most active firms.” Although many communities relied upon performance and financial guarantees offered by these companies, none of projects developed by them were successful. Similarly, there was a wave of optimism and projects that were implemented in the 1990’s involving numerous mixed municipal waste biological (i.e., composting) projects that also failed for economic or technical reasons. From these prior experiences, lessons can be drawn to assist communities evaluate the risks and rewards in procuring and contracting for today’s emerging technologies. The waste being delivered to these failed projects, unlike some of the salespersons, did not go away. These failed projects had to be redeveloped and replacement projects implemented to deal with the daily tide at the curb. A number of consultants, including the authors, started in the solid waste business redeveloping some of these failed initial efforts. From these prior experiences, lessons can be drawn to assist communities evaluate the risks and rewards in procuring today’s emerging technologies. New thermal conversion, pyrolysis, gasification, and bioconversion technologies are being proposed for projects throughout the U.S. based on experience in North America, Europe, the Middle East and Asia. Many communities have issued RFP’s to include emerging technologies in their integrated solid waste management systems. To successfully procure and finance a project involving one of these emerging technologies, the project sponsor or developer will need to: • Locate a politically suitable site for the project; • Acquire waste supply commitments; • Develop energy and material sales approaches and agreements; • Arrange for residue disposal; • Obtain permits to operate; and • Arrange for the financing. In addition to the above components, the efficacy of the technology and the financial backing provided by the technology supplier are critical to a successful project. Not unlike the early 1970’s and 1990’s companies are promoting the advantages and successful applications of new approaches to solid waste management. In doing so, some companies are asking communities to provide a suitable site (usually adjacent to or near an exiting permitted landfill or other solid waste management facility), supply waste, dispose of any residue, and assist in the permitting of a new project. The company may take the responsibility to arrange for energy and material markets, obtain the permits, and finance the project. The company’s objective is to develop a demonstration of their technology using mixed municipal solid waste, or a portion of the waste stream, in a U.S. community from which it can build its business. Before entering into long term obligations associated with such arrangements, it is important that a community consider the following: • How much will it cost to deliver waste to the new facility? • What impact will it have on the balance of the solid waste management system? • If the new system does not work, is there an alternative location, both in the short- and long-run to process/dispose of the waste? • If there are odor or other environmental problems that cannot be mitigated, is there a way to terminate the operation of the facility? • If the project does not succeed, will the company be responsible for razing the facility and returning a clean site? What other obligations will the company have? • What are the obligations of the community if the project does succeed? • What is the definition of success? • How long must the project be successfully demonstrated before it is converted into a fully commercial operation? • If this involves an expansion of the project, is the community obligated to proceed? This presentation compares and contrasts the experiences of the past with the current approaches being taken by firms promoting these technologies and communities implementing them in the hope of learning from our past.. Case studies will be discussed to support the conclusions and recommendations presented.

2021 ◽  
Vol 13 (6) ◽  
pp. 3517
Author(s):  
Lien Thi Kim Trinh ◽  
Allen H. Hu ◽  
Song Toan Pham Phu

Municipal solid waste management is an environmental issue that has received considerable attention from researchers and environmental managers for decades. Supporting the management programs entail policies and regulations related to municipal solid waste. In developed countries, the implementation of environmental policies plays an important role and has a substantial impact on the effectiveness of solid waste management. However, in many developing countries such as Vietnam, the situation and effectiveness of the policy implementation have not been studied extensively. This investigation is conducted to ascertain the situation, limitations, and challenges in implementing solid waste management policy in Vietnam. Then, solutions for the problems and improvements for implementation efficiency are presented. This work used online questionnaires to survey environmental managers in different localities and applied qualitative research method to analyze data. The results show that not all national policies on solid waste management are implemented in all localities. Waste separation is also the foremost concern in municipal waste management in most localities of Vietnam. Most of the localities claimed that the unrealistic nature and difficult implementation of the policies and the lack of needed resources are the main limitations and challenges in Vietnam. Survey results also revealed that different localities in Vietnam have different solutions to increase policy implementation efficiency. Besides, the study also found similarities in the implementation of policies in solid waste management between Vietnam and some other countries and also gathered some valuable lessons for the improvement strategy. Finally, the implementation of an effective domestic solid waste management policy is an important platform for improving environmental quality and ensuring the sustainable development of the nation and mankind.


2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2379-2388 ◽  
Author(s):  
Chira Bureecam ◽  
Taweep Chaisomphob ◽  
Praj-Ya Sungsomboon

A study of the plastics materials flow analysis in Thailand was aim to show the flow of plastic materials through production, consumption, and waste management based on the year 2013 and projection to the year 2020. This paper finds the plastic waste generation increasing steadily in line with population growth and increasing consumption. In addition, the simulation under waste management three scenarios includes the following: the business as usual, increasing recycled rate set on the National Solid Waste Management Master Plan (2016-2021) and increasing in rate of energy recovery by the Alternative Energy Development Plan 2015-2036. The plastic material flow analysis has shown that the implementation of the National Solid Waste Management Master Plan (2016-2021) or the Alternative Energy Development Plan 2015-2036 can reduce uncollected waste and improper waste disposal. Moreover, there is benefit by adding value from recycled materials and energy recovery.


Author(s):  
A. V. Balabak ◽  

The study of municipal solid waste management was carried out on the example of the city of Uman, the features of the municipal waste collection were considered. One of the promising utilization methods of the municipal waste organic component is proposed — anaerobic fermentation with subsequent composting of the resulting products. Urban population growth, industrialization, urbanization and economic prosperity lead to an increase in municipal solid waste (MSW). The aim of the work was to consider the characteristics of municipal solid waste management using the example of the city of Uman; inspect the features of collecting municipal waste; consider a separate collection system; identify problems and possible solutions. According to the statistics of Uman city council, 73-75 tons of municipal waste per day are delivered to the landfill. The control is carried out on the composition of the waste entering the landfill. Sorting takes place using a sorting line, which was put into operation in October 2016. Removal of municipal solid waste from the residential sector is carried out according to the schedule. The waste from the private sector of the city is removed during the day. Transportation (transport) of municipal waste is carried out by specially equipped vehicles. On the plots of the private residential sector, the collection of municipal waste is carried out by containerless and container methods. The containerless method is used in those areas of private building, where the possibility of the garbage truck's driving and its maneuvering are limited. Analysis of the current state of municipal solid waste management in the city of Uman showed that the main reasons for the increase in the volume of environmental pollution due to municipal solid waste is the lack of a high-quality management system in the field of MSW management, and especially the outdated waste collection and transportation scheme. The state of MSW management does not meet modern requirements. At the landfill, as a result of the introduction of the technology for the production of biogas from municipal solid waste, it is possible to obtain marketable products — biogas and compost. The city can receive income from the use of biogas as an alternative source of energy for heating buildings or from its consuming by the population. For the city of Uman, the volume of biogas formation at the MSW landfill in 2018 would have amounted to 5,441,280 m3, and in 2019 – 5,424,930 m3.Thus, it is possible to obtain significant volumes of biogas for the production of both heat and electricity. As a result of the study, recommendations were developed to improve the system for collecting municipal waste in the city of Uman. One of the promising utilization methods of the municipal waste organic component in the city of Uman is anaerobic fermentation followed by composting of the resulting products.


Author(s):  
Alexander E. Helou ◽  
Kim Tran ◽  
Cecile Buncio

Thermal technologies, such as gasification, pyrolysis, waste-to-energy (WTE), and advanced thermal recycling (second generation WTE with the most advanced air emission control system), can be employed to recover energy from municipal solid waste (MSW), reduce the volume of material to be landfilled, and lessen the potential emission of methane. Methane is a potent greenhouse gas and a major component of landfill gas. All operating WTE facilities in the United States have been subjected to strict environmental regulations since the passage of the Clean Air Act Amendments in 1990. As a result, U.S. WTE facilities now meet or exceed stringent local air quality standards, including those imposed by the South Coast Air Quality Management District (SCAQMD) in Southern California. The United States Environmental Protection Agency (EPA) recognizes the important role of WTE in the integrated solid waste management and ranks combustion higher than landfilling in its solid waste management hierarchy. In addition to upstream source reduction and recycling, downstream thermal treatment of the residual MSW (conducted in controlled environment) can effectively recover energy and further reduce waste volume. Despite all the advantages and environmental benefits of thermal technologies, its utilization for treating MSW in California still faces many challenges. These include negative public perceptions, economical disadvantages, local marketability of by-products, and disposal options for residuals. This paper discusses the need to include energy recovery in the integrated MSW management in California and the challenges encountered by many local jurisdictions.


Chemosphere ◽  
2021 ◽  
pp. 133088
Author(s):  
Afzal Husain Khan ◽  
Eduardo Alberto López-Maldonado ◽  
Nadeem A. Khan ◽  
Luis Jesús Villarreal-Gómez ◽  
Faris M. Munshi ◽  
...  

2020 ◽  
Author(s):  
Samuel Yaw Lissah ◽  
Martin Amogre Ayanore ◽  
John K. Krugu ◽  
Matilda Aberese-Ako ◽  
Robert A.C. Ruiter

Abstract Background: Population growth and rapid urbanization have resulted in the generation of large quantities of solid waste across major urban cities in Ghana, outstripping local authorities’ ability to manage and dispose of waste in a sanitary manner. This study explored the perspectives and experiences of municipal waste company managers and supervisors in the Ho municipality of Ghana on solid waste management practices. Method: A qualitative inquiry was conducted by adopting a phenomenological approach, using in-depth interviews and focus group discussions for data collection. A total of 35 participants, made up of 12 managers and 23 supervisors took part in the study. Transcribed data were imported into NVivo 11.0 software for coding. Content analysis was applied to analyze all transcribed data using processes of induction and deduction. Results are presented using descriptive narratives supported by illustrative quotes. Results: Three themes emerged from the study. The results showed that organizational capacity, resources, and expertise; community factors such as socio-cultural beliefs and a low sense of responsibility towards solid waste management among urban residents; contextual factors such as regulations, and weak enforcement all influence and shape the level of efficiency and effectiveness of solid waste management practices in the study setting. Conclusion: The findings suggest that policy frameworks and procedures implemented should be systematic and thorough in order to tackle the issue of solid waste in the study setting and Ghana in general. The nature of the identified issues and challenges requires multidimensional and multilevel interventions to provide sustainable solutions for managing urban waste in Ghana.


2019 ◽  
Vol 26 (3) ◽  
pp. 97-104
Author(s):  
Cassie CHOW ◽  
Alex Wai Hung CHEUNG

Solid waste management system is becoming a significant environmental, economic and technological challenge due to the increasing population and different waste stream. Municipal solid waste (MSW) is easy to generate but difficult to venerate. The question of whether MSW is an undervalued resource or an environmental burden is in continual debate. This paper presents an overview and structure of the current MSW management in Hong Kong and the advantages of waste diversion when the waste that normally would be delivered to the landfill is removed from the MSW. This paper also studies the technology of energy recovery which can be achieved from MSW in direct combustion as a fuel to produce power and heat, or indirectly, through waste conversion to fuel or fuel in a state of storage for future use. The necessity, rationale and application of energy recovery facilities are discussed to meet public health and environmental concerns and the public’s desire and willingness to reuse and recycle waste materials. Solid waste management serves both resource recovery and waste disposal in the public’s future challenges and opportunities for change.


2013 ◽  
Vol 824 ◽  
pp. 630-634
Author(s):  
D.I. Igbinomwanhia ◽  
O.O. Ibhadode ◽  
P.E. Akhator

Solid waste management is commonly seen in Nigeria as simply pick up the waste and go dump it in a hole somewhere. Hence the current major solid waste management method in Nigeria is disposal at dumpsite. The solid waste management practice at the dumpsite is simple. The waste disposal trucks drive into the dumpsites through the access roads and dump their waste. Other vehicles that deliver waste to the site simply dump their waste indiscriminately by the road sides. The workers at the dumpsites use shovel to manually push the waste from the road and try to spread them as much as their strength can go. Thereafter, open air incineration without pollution control is carried out on the waste for volume reduction. This is not sustainable as it does not bring financial return at the end point of the waste. Therefore incineration with pollution control and energy recovery that will bring financial returns at the end point of the waste is ineviTable for sustainable solid waste management. In the work reported in this paper a study and preliminary design for incineration with energy recovery has been carried out. A review of solid waste component in Benin metropolis was carried out to determine the proportion of combustible material in the waste streams in the metropolis. Several conceptual designs were developed and one was selected. Detail design of a prototype for 15kW electrical power generation was done. The result obtained showed that about 43% of combustible commercial solid waste and about 16% of combustible domestic solid waste are generated in Benin metropolis. The result also showed that about 72Kg/s of combustible municipal solid waste is required for the generation of about 15kW of electrical power and the exhaust gas can be used for other process systems such as systems for drying agro-produce.


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