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Sustainable Solid Waste Management

Composting of local organic waste

and Urban Agriculture practice

Addis Ababa, November 2015

Waltenegus Wegayehu

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A joint project was proposed to extend the activity of the pilot project between:

• Association of Ethiopians Educated in Germany (AEEG)

• University of Natural Resources and Life Sciences ,Vienna (BOKU)

• Center for Development research (CDR) ,Vienna • German international Cooperation ( GiZ)

• The project was proposed for three years.

• Implementation of the project was started in November 2010.

Implementation of separate collection of organic waste at HH level, waste collectors for providing bins and working materials

Training of the selected people on the value of waste, composting & good SWM practices

Ensuring quality: Process monitoring and quality assurance program

Testing different input and bulk materials to identify and recommend the best materials for future use

Recording quality control and process monitoring parameters suitable to the prevailing Ethiopian conditions

Conduct start-up workshop with stakeholders

Establish contact to scale-up and disseminate the result to other major cities of the country

Objectives :

Compostingsite

Small Akaki river

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Open air circulation

5 % Slope

To collection

pond

To collection

pond

Training events on SWM

• Training on source-separated waste collection, reduction and composting was given to 70 selected households and 30 waste collectors within the project Woreda .

Waste collection and processing

• Source-separated waste collection at household (HH) level was introduced and implemented in accordance to the training which was conducted.

• The composting method is aerobic decomposition.We use aerobic composting method adopted from Guinea (BOKU-University Conakry project) as a best practice for this project.

• 1200 Kg – 1500 Kg of household waste (Mixed) is delivered weekly at the site through the collectors .

• Organic portion 90-95 %.

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Composting method : Aerobic decomposition

Windrow layout : 2,50m X 1,30m

End product compost as organic fertilizer packed in 50 Kg sacks

Pot observation trial

100 % HH compost

75 % HH compost + 25 % soil

50 % HH compost + 50 % soil

25 % HH compost + 75 % soil

Compost application and Urban Agriculture practice

• By applying compost the soil structure and fertility was upgraded.

• Different vegetables were planted and the crop yield was very good.

• Furthermore, the site has a show room effect.

Prepared land plot adjacent to the site for compost application and monitoring

In cooperation of Mr. Hiwot from Good to Grow Plc implemented thefollowing theme in the selected schools:

Compost -> Soil fertility -> School gardening -> Nutrition -> Food security

With the goal to educate children on :

• SWM on use of organic waste as a natural resource rather than directing the waste to the landfills (Koshae).

• Integrate SWM across many areas of the curriculum to help develop student capabilities in the following key competency areas (Social Science , Biology, Mathematics , etc…)

Urban Agriculture Practice in Schools

• The School gardening result was very encouraging. • The vegetables were then served to orphans and given to parents with very

low income.

Training of 15 experts on compost sampling and analysis

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Training: at the EPA laboratory

Trainer : Mr. Erwin Binner from ABF-BOKU, Vienna.Trainees: 15 experts from different stakeholders fields of SWM.

On-site monitoring and sampling during composting.

Practical work at the composting station.

Sample pre-treatment and analytics.

Household Survey

AEEG carried out the survey which included 150 households and 10 collectors in KK Sub city area who are part of the pilot composting project.

The survey results can provide:

• The survey will help gather information on HH-SWM ,the costs involved, and how those costs are paid for.

• The survey results can provide a baseline and guidance for SWM in an efficient, cost effective, and environmentally preferable manner.

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Market Survey

• To assess households’ willingness to pay for compost.

• To identify factors affecting the WTP (Willingness To Pay) for compost made of HH waste.

• The findings of the study will generate valuable information to producers and other stakeholders operating in SWM Urban Agriculture areas.

Training of school community and waste collectors

The workshop was conducted on at Abune Basliaos school, Addis Ababa, Ethiopia.

• The main topics were source separated waste collection, compost production, compost application, urban agriculture and food security.

• The waste collectors will have the possibility to add value to their daily work by composting organic waste and using it in urban agriculture activities.

• This will ultimately assist in meeting the MDG.

• The school community i.e. students, parents, teachers will benefit from this project and will integrate SWM and UA in their environment Protection program.

• Great opportunity to create awareness in good solid waste management to a wider public, go from pilot project to major project, work with other NGOs.

The Workshop was conducted in four modules, one training session per week.

• Implementation of the 2012 Workshop.

• The Workshop was designed to transfer the knowledge and experience gained from the KK Pilot Composting Project to new waste collectors, teachers , students and the school community.

• The main topics were source separated waste collection, compost production, compost application, urban agriculture and food security.

Training of Trainees (ToT) on SSWM

The following specific outputs were achieved:

• The workers at the site will be trainers of trainees (ToT).

• Waste collectors will have the opportunity to add value to their daily work by composting organic waste and using it in urban agriculture activities.

• The experience and data obtained will be an asset and knowledge source for institutions working on SWM and environmental issues.

• SSWM will then be adopted in different Schools in Addis Ababa.

• The school community, i.e. students, teachers and parents will benefit from this project and will integrate SWM and UA in their HH and environment Protection program.

Urban Waste Management Challenges

Mechanisation of Compost Production

Small scale / Large scale Compost production