EVALUATING ANAEROBIC DIGESTION TECHNOLOGY IN REDUCING THE QUANTITY OF SOLID WASTE: A CASE STUDY OF KIGALI DUMPSITE. BY NIKUZE Marie Joselyne

EVALUATING ANAEROBIC DIGESTION TECHNOLOGY IN REDUCING THE QUANTITY OF SOLID WASTE: A CASE STUDY OF KIGALI DUMPSITE. BY NIKUZE Marie Joselyne

Rwanda is a developing country where the waste generated from households continues to increase due to extensive urbanization and development. Biodegradable organic matter constitutes a great portion of Municipal solid waste and comprises organic material which can be broken down by bacteria like paper, card, green waste, food waste, miscellaneous items with an organic element and fine materials. The research mainly evaluated the potential of anaerobic digestion technology in reducing the quantity of solid waste destined to the dumpsite in Kigali city.

 


 

 

PROJECT SUPERVISOR:

Dr. Muthumbi Waweru

Rwanda is a developing country where the waste generated from households continues to increase due to extensive urbanization and development. Biodegradable organic matter constitutes a great portion of Municipal solid waste and comprises organic material which can be broken down by bacteria like paper, card, green waste, food waste, miscellaneous items with an organic element and fine materials. The research mainly evaluated the potential of anaerobic digestion technology in reducing the quantity of solid waste destined to the dumpsite in Kigali city.

The research evaluates the viability of using biodegradable waste meant to the land where the biogas is produced and undertaking its cost & benefit analysis for chemical, physical and biological characteristics of municipal solids waste on anaerobic digestion technology. The quantity of municipal waste generated in Kigali city was used for designing the biodigester required. The research results indicates the variation of weight percentage of waste: Plastics (4%) Paper (3%) Cartons (3%) Glasses (2%) Metal (1%) Biodegradable Organic wastes (75%), others (clothes, shoes, bones, hair, Pampers.)14%. The organic waste was found to be more generated with 500.000kg and 73% fractions, and the organic waste produces 457 L/kg DM of methane and the overall assessed value of methane was 51,384,375 L with the electricity derived from the methane of 180,873 KWh which is 54% of the daily demand. The volume of the biodigester was found to be 58,065 m3. Based on the energy recovered, revealed that cities will benefit this research for the population demand for the increased electricity.

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I am NIKUZE Marie Joselyne I was born on 03rd/11/1983 in Nyarugenge, Kigali, Rwanda. My parents are NGIRUWONSANGA Vincent and MUJAWAYEZU Monique, and I am married.

I study Masters program in Environmental and Bio-systems Engineering in Nairobi University  (2014 - 2020), I got a A0 in civil Engineering and Environment Technology from KIST (Kigali Institute of Science and Technologie) former CST (College of sciences and Technology)  2006 - 2010 and I got O’level certification degree in math-physique, the secondary school (1999 to 2001)  G.S.K Group Scolaire de Kigeme and (2002 – 2004) G.S.O.B Groupe Scolaire Officiel de Butare ;  Primary schools (1992-1998) Butare Catholique.

I speak Kinyarwanda, French and English. I have knowledge on computer literacy; I can use Microsoft Offices, Internet Explorer, Archicad, Autocad, Covadis, and Epanet.

Further, I worked as teacher in secondary school: E.S.K (Ecole Secondaire de Kinazi) 2005-2006, and Technical school (Collegio Santo A.M.Z) 2010 – 2011. I have done: Surveying camp in KIST 2007, Industry attachment on modern market of Nyarugenge, Industry attachment in HYCOGEC Company, training course on ArcGIS 2010, Survey as site surveyor for a survey made in RWANDA on road transport operator, Consultancy as valuator for RTDA project conducted by KIST company on services for survey and demarcation of the road reserve at sectional paved and unpaved road network. Training course on small hydropower technology in Rwanda held at CST by Chinese government, geotechnical study for 200 selected villages of Kigali. Then I am tutorial assistant at CST from June 2011 till now.