Energy Recovery Routes from Municipal Solid Waste: A Case Study of Arusha-Tanzania

Omari, Arthur M.; Said, Mahir; Njau, Karoli N.; John, Geoffrey R.; Mtui, Peter

doi:10.1201/b19941-10

Cited by 14 publications

(20 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The large amounts of MSW generation due to technological development, economic expansion and changing lifestyle is attributing to serious environmental issues because of inappropriate management systems [30,31,32]. Like other developing states, Pakistan is also facing challenges in MSW Management because of the rapid urbanization and deficiency of formal recycling of waste into resources [28,33,34]. Despite of enormous amount of MSW generated, the economic growth of developing countries has severely affected due to the crises in energy [35].…”

Section: Figure 4 Utilization Of Elementary Energy [10 13]mentioning

confidence: 99%

Effective Utilization of Municipal Solid Waste as Substitute for Natural Resources in Cement Industry

et al. 2020

View full text Add to dashboard Cite

The aim of this study was to evaluate the municipal solid waste (MSW) composition of Peshawar city and its affective utilization for energy purpose in the cement industry. A total 14 days consecutive testing of MSW samples was conducted for winter and summer periods for the purpose of evaluation of the waste composition followed by calculating its heating values. Compliance level of MSW at source was determined which was based upon the questionnaire distribution followed by the financial analysis and feasibility evaluation of the project. The results revealed that the average waste composition of the samples consists of organic waste contents (20.72%), combustible items (37.86%), readily saleable items (20.95%) and other miscellaneous waste items (20.46%). Moreover, the samples were then tested for the evaluation of calorific value and it was found that the heating value of MSW is recorded up to 35513 KJ/Kg whereas; the value for coal is around 38000 KJ/Kg. These findings revealed that the replacement of coal by MSW may be more efficient and might be effectively utilized in the production of cement as the energy production of MSW and coal is nearly same. In addition, the utilization of MSW as a replacement of coal has a great potential of enhancing the service life of the landfills. Besides, NPV analysis of this study revealed that the project is worthwhile to be implemented as it shows high returns regarding financial aspects.

show abstract

Section: Figure 4 Utilization Of Elementary Energy [10 13]mentioning

confidence: 99%

Effective Utilization of Municipal Solid Waste as Substitute for Natural Resources in Cement Industry

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Thermal output power (TOP) of the gasifier is assumed at 20 kWth and the energy content (HHV) of MSW at Arusha is 12 MJ/kg as reported earlier by Omari et al, [27]. These two factors were used to determine the biomass consumption rate (BCR) for the gasifier which is given by equation 1.…”

Section: Power Outputmentioning

confidence: 99%

Experimental Study of a Lab Scale Hybrid Fixed Bed Gasifier

Moshi¹,

Kivevele²,

Jande³

2019

AJCBE

View full text Add to dashboard Cite

Thermo-chemical conversion technologies (incineration, gasification and pyrolysis) have emerged as potential technologies for municipal solid waste management (MSWM). This is happening due to the increase of the need for clean and sustainable energy as a result of fossil fuel depletion. The increase in municipal solid waste (MSW) generation as well as land scarcity for MSW disposal is another reason in raising the potential for thermal technology. Incineration has been the most common thermo-chemical technology for solid waste disposal. However, due to environmental concern, gasification technology is currently becoming more preferable since it is environmental friendly for MSW disposal as well as energy recovery. The aim of this study is to analyze the flue gases obtained from the hybrid fixed bed gasifier during gasification of MSW. The fire was initiated by wood charcoal and six kilograms of MSW was fed in the gasifier. The combustion was supported by the air supplied by electric blower. The flue gas analyzer, TESTO 327-1 was used to analyze the concentration of CO, CO 2 and O 2. Results show that after 150 minutes of the gasification process, O 2 concentration increased by 17.2% while CO and CO 2 decreased by 0.0% and 3.77% respectively. The experimental results show that, during gasification process the O 2 concentration was increasing with time while CO and CO 2 concentration decreased.

show abstract

“…The samples formula of municipal solid waste used for this experiment were adopted from ultimate and proximate analysis results found in Arusha, Tanzania [36].…”

Section: Waste Sample Formula For Reactionsmentioning

confidence: 99%

Operating Conditions of A Locally Made Fixed-Bed Incinerator, a Case Study of Bagamoyo – Tanzania

Omari¹,

John

Njau

et al. 2015

IJEMA

View full text Add to dashboard Cite

To minimize the pollution from municipal solid waste incinerators, the study of operating conditions is imperative. The local design incinerators can be used for high performance combustion and minimize pollutions. The incinerator located at Bagamoyo hospital in Tanzania is used as a pilot for this experiment. The emission and operating conditions shows that the performance of incinerator is at maximum peak of about 70% when the oxygen at exit is about 6.9% and when secondary temperature is between 1073 and 1173K and primary temperature maintained at 673K. The experiment shows that when the primary chamber temperature increases beyond 673K, the secondary temperature decreases this is due to complete combustion at primary chamber which will cause insufficient incomplete gases and therefore limited combustible gases to burn.

show abstract

Energy Recovery Routes from Municipal Solid Waste: A Case Study of Arusha-Tanzania

Cited by 14 publications

References 17 publications

Effective Utilization of Municipal Solid Waste as Substitute for Natural Resources in Cement Industry

Effective Utilization of Municipal Solid Waste as Substitute for Natural Resources in Cement Industry

Experimental Study of a Lab Scale Hybrid Fixed Bed Gasifier

Operating Conditions of A Locally Made Fixed-Bed Incinerator, a Case Study of Bagamoyo – Tanzania

Contact Info

Product

Resources

About