Abstract
The study was done to explore the production of charcoal briquettes that could meet the need for energy in the community of Jimma city. The primary objective of this work is to produce charcoal from the most promising wastes. Under these objectives the main activities which performed were sorting waste, characterization of wastes that can easily degradable, designing carbonizer equipment, manual press molding machine, and characterizing charcoal briquettes. Degradable municipal waste was collected from Jimma city. The charcoal production process includes a collection of degradable municipal waste, drying, carbonization, crushing and sieving, binder preparation, binder – charcoal mixing, briquette charcoal (compaction and drying), and packing. The test result of degradable municipal solid waste for its density, % of moisture, % of volatile matter, % of ash, % of fixed carbon, and caloric value of was determined as 157.3kg/m3, 18.15%, 66.95%, 4.07%, 10.83%, and 18.5MJ/kg, respectively. In the same way the test result for charcoal briquette for its density, porosity weight index, shatter resistance ,moisture content, volatile matter, ash content, fixed carbon content, and caloric value was obtained as 50.06kg/m3, 29.05%, 92.3 %, 9.87%, 29.4%, 3.21%, 57.52% and 27.0MJ/kg, respectively. These results show in the range compared with others reported in literature. Therefore, there is the possibility to convert Jimma City degradable solid wastes into charcoal briquette using starch as a binder. We can increase the quality of charcoal briquette rather than polluting the environment.
Highlights
INTRODUCTION1 Background Biodegradable materials can serve as an alternative renewable and carbon-neutral raw material for the production of energy
The physical and combustion properties of the charcoal briquettes examined in this work were limited to density, porosity index, shatter resistance, percentage moisture content, percentage volatile matter, percentage ash content, and fixed carbon percentage and calorific heat value
This implies the biodegradable municipal solid waste has low energy density; it is difficult to store for a long time
Summary
INTRODUCTION1 Background Biodegradable materials can serve as an alternative renewable and carbon-neutral raw material for the production of energy. It is known that the total population of the town is about 159,009 Taking this figure into account, the daily, weekly, monthly, and yearly solid waste generation rate of Jimma town is estimated to be 22.26, 155.82, 667.8, and 8,124.90 tons, respectively [2]. Solid waste management is one of the major problems in different countries like Ethiopia. Other characteristics that may be used in making the decision about solid waste management are (1) color, (2) voids, (3) shape of components, (d) optical property (e) magnetic properties, and (f) electric properties. Important chemical properties measured for solid waste are: (a) moisture (water content can change chemical and physical properties), (b) volatile matter, (c) ash, (d) fixed carbon, (e) fusing point of ash, (f) calorific value, (g) percent of carbon, hydrogen, oxygen, sulfur, and ash. These values vary somewhat from the ultimate values which are 48 and 2.6% for carbon and nitrogen, respectively [5]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
