Nairobi Urban MP Presentation_4th Working Group_SWM_for HP

8/13/2019 Nairobi Urban MP Presentation_4th Working Group_SWM_for HP

1/17

Satoshi Higashinakagawa

JICA Study Team

Japan International Cooperation Agency (JICA)

1

4thThematic Technical Working Group

for Solid Waste in Infrastructure Sector

9thOctober, 2013

- Explanation of Technical Option and Site Selection-

D

raftWo

rkingGr

oupMate

rial


2/17

D

2

Contents

Zone boundary based on the Future Demand Projection of

Solid Waste Amount (according to this socio-economicframework in this Urban M/P)

Consideration of Technical Options

Consideration of Site Selection

Future Action Plan and Necessary Capacity Development

D

raftWo

rkingGr

oupMate

rial


3/17

3

Future Projection of Solid Waste Amount

(Waste Generation)

0

500

1000

1500

2000

2500

3000

3500

4000

4500

2005 2010 2015 2020 2025 2030 2035

G

aeWsed

ear

Household waste

Commercial waste

Market waste

Total amount of waste (JICA Urban

Plan Study)

Total amount of waste(JICA SWM

Study in 2010)

D

raftWo

rkingGr

oupMate

rial


4/17

4

Future Projection of Solid Waste Amount

3R activities 2015 2020 2025 2030

Waste reduction rate 5.0% 7.5% 10.0% 10.0%

Reduction rate by recyclablewaste recovery

6.3% 9.3% 10.8% 12.3%

Reduction rate bybiodegradable wasterecovery

3.3% 3.4% 3.4% 3.4%

Waste collection rate 2015 2020 2025 2030

Waste collection rate 48.8% 64.6% 83.6% 100%

Self-disposal 2015 2020 2025 2030

Self-disposal rate 10% 10% 10% 10%

Source :JICA SWM M/P (2010)

D

raftWo

rkingGr

oupMate

rial


5/17

5

Collected waste in each area (2030)

917 ton/day

803 ton/day 620 ton/day

297 ton/day

D

raftWo

rkingGr

oupMate

rial


6/17


(Collection and transportation)

Options Merit Demerit

Handcart -Easy to collect alongsmall road-Cheap cost

- Not effective forcollection

Compactorvehicle

-Easy to collect andtransport effectively

-Slightly expensive

Containervehicle

-Easy to collect-Effective collection

-Necessary formaintenance

Dump truck - Not so expensive - Slightly taking time forcollection

Options Merit DemeritHouse tohousecollection

-Easy to collect-No incentive for wastereduction

-Taking the time forcollection

Station

collection

-Effective collection Necessary to monitor

the collection point

Area of narrowroad

Area of highincome

Area of stationcollection

Other area

Apartment,secondary

collection area

Individual house

6

D

raftWo

rkingGr

oupMate

rial


7/177


(Treatment and Disposal)

Options Merit Demerit

Landfill -Comparatively cheaperoption-Technically feasible

-No waste reduction

3R+Landfill -Comparatively cheaperoption-Technically feasible

-If no cooperation with wastegenerator, not enough wastereduction

3R+Incineration+Landfill

-Effective volume reductionof waste

-Expensive for initial cost andO&M cost

3R+Composting+Landfill

-Effective volume reductionof organic waste-Not expensive option

-Waste separation isnecessary and necessity ofmarket of compost

3R + landfill + (composting)

D

raftWo

rkingGr

oupMate

rial


8/17


9/179


(Treatment and Disposal)

Selection Criteria Sanitary Landfi ll Waste to Energy

(Incinerator)

Social andEnvironmentalAcceptability

It will be acceptable, ifthe operation follow thesanitary landfill methodand wastewater quality

satisfy the internationalstandard

It will be acceptable, ifthe exhausted gas orwastewater qualitysatisfy the international

standard

Initial Cost 47 million US$(around 2000 ton/dayfor 20 years)

100 to 150 millionUS$ (1000 ton /day)

O &M Cost [/Year] Around 5 to 6 US$/ ton Around 30 to 70US$/tonVolume Reduction [%] 0% reduction 85% reduction

Necessary Area 80ha 5 ha to 10 ha

Technical feasibilityand experience

Experiences indeveloping countries

Experiences indeveloped countriesDr

aftWorki

ngGrou

pMate

rial


10/1710

After Improvement- Reduction of odor- Reduction of rodents and birds- Prevent the leachate leakage

- Improvement of unloading andwaste spreading activities- Improvement of waste pickingactivities

Open dump site (e.g.Dandora dump site)

Image of Sanitary LandfillSite

Current issues- Odor problem- Rodents and birds- Leakage of leachate to water

course- Bad condition of inner andaccess roads- Bad condition of unloadingplace

Improvement- Cover soil- Liner systemand leachate

treatment facility-Improvement ofaccess andinner roads-Monitoring bywaste pickers

and landfillofficers

Improvement of Treatment and Disposal System

(Difference between dump site and sanitary landfil l site)

DraftWo

rkingGr

oupMate

rial


11/1711

Improvement of Treatment and Disposal System

(Example of effectiveness of cover soil)

Non operation areais covered by soil

Operation area isonly part of landfill

site

Source :JICA Preparatory Survey (2012)DraftWo

rkingGr

oupMate

rial


12/17

12

Thika CountyKiambu County

Machakos County

Kajiado County

Nairobi County

Consideration of the Site of Suitable Treatment and

Disposal System

DraftWo

rkingGr

oupMate

rial


13/17

13

Consideration of the Site of Suitable Treatment and

Disposal System

DraftWo

rkingGr

oupMate

rial


14/17

14

Scoring for suitable sanitary landfill site

Near theairportwithin13km

Flightpath(between 10

degree)

Othercounties

Residential orCommercial area

Forestarea

Unsuitablepoint

Mirema farm 2

Nijiru area 2

Ruai site 1

Ngong roadforest

2

Arboretum 2

Karual forest 2

Embakasigarrison

2

KamukunjiEastleigh

2

Kasarani area 2

Juja area 1

Ruile area 1

Dagorreti forest 2

Ongata Rongai 2

Athi river area 1Dr

aftWorki

ngGrou

pMate

rial


15/17

15

Consideration of locations of suitable treatment

and disposal system

Ruai area

Juja

Ruiru area

Dagoretti forest

Athi river area

Mavoko area

T/S at Dandora

DraftWo

rkingGr

oupMate

rial


16/17

16

Future Action Plan

Program General description of action plans Sort-term plan Middle-term plan Long-term plan

Program 1Collection & Transportation

Formulation and implementation ofwaste collection and transportation plan

Procurement of waste collection vehicles

and construction of access road in slum

Implementation of waste collection

service by PPPP scheme and

CCN/SWMPC zone

Program 2

3R&Intermediate Plan

Formulation and Implementation of 3R

and Intermediate treatment plan

Program 3

Final Disposal Plan

Improvement of Dandora dump site

Construction and operation of new

landfill site at Ruai

Closure of Dandora dump site and illegaldump sites

Program 4

Organizational restructuring

and human resource

development plan

Establishment of SWMPC

Implementation of capacity development

Mid-term and long-term monitoring and

restructuring

Necessary to develop

the capacity and

implement the plan

DraftWo

rkingGr

oupMate

rial


17/17

17

Future Action Plan

Sort-term plan Middle-term plan Long-term plan

Program 5

Legal Institutional Reform

Plan

Improvement of monitoring and

enforcement in the legal framework

Legislation of Establishment of SWMPC

and related financial system and PPP

Program 6

Financial Management

Plan

Establishment of waste charging system

and new accounting system

Review, revise and monitoring of waste

charging system and cost accounting

system

Program 7

Private Sector

Involvement PromotionPlan

Establishment of PPPP structure for

collection, transportation, intermediate

treatment and disposal system

Mid-term and long-term monitoring of the

PPPP structure

Program 8Community ParticipationPlan

Establishment of PEC Unit

Implementation of Community based

SWM including environmental education

and public awareness raising activities

Necessary to improve

institutional framework

not only for municipallevel but also national

level

Source :JICA Study Team based on JICA SWM M/P (2010)DraftWo

rkingGr

oupMate

rial

Documents

Nairobi Urban MP Presentation_4th Working Group_SWM_for HP