Planning of a Integrated Waste Management Planning of a Integrated Waste Management

System for System for BanepaBanepa Municipality with a Focus Municipality with a Focus

on Biogas Generation and Incinerationon Biogas Generation and Incineration

Supervisors

Dr.Sanjay Nath Khanal

Er. Dinesh Raj Manandhar

Group Members

Bishal Bhari (42250)

Racy Shrestha (42270)

Bikash Timalsina (42273)

(ENE 4th Year)

AcknowledgementAcknowledgement

Dept. of Environment Science and

Engineering

Er. Prachanda Man Pradhan

Dr. Bibek Baral

Dr. Bhupesh Adhikary

Er. Keshab Bista

Dr. Bim Prasad Shrestha

Er. Sunil Prasad Lohani

IntroductionIntroduction

Banepa: Small town, Developing

Poor waste management of Banepa Municipality

Practice of open dumping

Over burdening of dumping site

Absence of sanitary landfill

Proposed landfill site is18 KM far from BM which will increase waste management cost

Need of effective waste management system

ObjectivesObjectives

General objective:

Study and plan ISWM for BM along with the utilization of a biogas digester and an incinerator.

Specific objectives:

Design bio-gas digester for the utilization of biodegradable waste of BM and to estimate its cost.

Design incinerator for the reduction of volume of non-biodegradable waste and to estimate it cost.

Study feasibility of production of bio-electricity from biogas digester.

ScopeScope

Study of the current waste generation

and management of wastes.

Projection of waste for the design period.

Detail design of biogas digester and an

incinerator.

Potential of bio-electrification and its

cost.

ISWM plan using biogas digester and

incinerator.

MethodologyMethodology

Estimation of cost

Digester Incinerator

Design

Anaerobic digester (Sizing, Civil Structure design) Incinerator (Sizing, Civil structure design)

Selection of waste management technology

Criteria for designing anaerobic digester Criteria for designing incinerator

Study Methods

Field study Composition

analysis Population projection

Waste generation, quantification and projection

Banepa Municipality

Municipal solid waste

Results and DiscussionsResults and Discussions

Waste Composition AnalysisWaste Composition Analysis

54.54

20.63

0.18

10.22

1.34 11.24

0.82

0.5 0.45

0.08

Waste Composition Analysis of 2012

Organic

Inert

Metal

Paper

Glass

Plastic

Textile

Rubber and

leather Medical

54.54%

22.78%

22.68%

Waste Fraction of 2012

Biodegradable

Combustible Non-Biodegradable

Non-combustibleInorganic

Population ProjectionPopulation Projection

23,638 y = 356.94x - 698434

R² = 0.9961

12000

14000

16000

18000

20000

22000

24000

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

2010

2012

2014

2016

2018

2020

2022

Po

pu

lati

on

Year

0.31

0.37

0.39

0.40

0.40

0.41

0.42

0.42

0.43

0.44

0.44

0.45

0.46

0 0.1 0.2 0.3 0.4 0.5

2003

2009

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

Per Capita Waste Generation Projection

(kg/person/day)

(Banepa Municipality, 2009)

(SWMRMC, 2003)

Total Waste ProjectionTotal Waste Projection 10873.31

y = 319.38x - 635052

R² = 0.9943

7000.00

7500.00

8000.00

8500.00

9000.00

9500.00

10000.00

10500.00

11000.00

2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

To

tal w

ast

e (

Kg/d

ay)

Year

BioBio--degradable Waste Projectiondegradable Waste Projection

56.13

y = 0.1589x - 265.14 R² = 1

54.4

54.6

54.8

55

55.2

55.4

55.6

55.8

56

56.2

56.4

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

Bio

degra

dab

le W

ast

e(%

)

Year

6103.07

4577.30

y = 191.33x - 380856

R² = 0.9943

y = 143.5x - 285642

R² = 0.9943

2500.00

3000.00

3500.00

4000.00

4500.00

5000.00

5500.00

6000.00

6500.00

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023 Bio

de

gra

dab

le w

ast

e (

Kg/d

ay)

Year

Biodegradable

waste (Kg/day)

Biodegradable

waste collected

(Kg/day)

Combustible NonCombustible Non--Biodegradable Biodegradable

Waste ProjectionWaste Projection

33.25

y = 1.0623x - 2114.8

R² = 0.9978

20

22

24

26

28

30

32

34

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

Co

mb

ust

ible

No

n B

iod

egra

dab

le

Wast

e(%

)

Year

3616

2712

y = 186.94x - 374465

R² = 0.9926

y = 140.2x - 280849

R² = 0.9926

1000.00

1500.00

2000.00

2500.00

3000.00

3500.00

4000.00

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

Co

mb

ust

ible

No

n-B

iod

egra

dab

le W

ast

e

(kg/d

ay

)

Year

Combustible

nonbiodegradable

waste (Kg/day)

Combustible non-

biodegradable waste

collected (Kg/day)

Summary of ProjectionsSummary of Projections

SN Components Projection for 2022

1 Population 23638 person

2 Per-capita waste generation 0.46 Kg/person/day

3 Total Waste 10873.31 Kg/day

4 BD waste fraction 56.13%

5 BD waste 6103.7 Kg/day

6 BD waste collected 4577.30 Kg/day ~ 4600 Kg/day

7 Combustible NBD waste fraction 33.25%

8 Combustible NBD waste 3616 Kg/day

9 Combustible NBD waste collected 2712 Kg/day ~ 2700 Kg/day

Incinerator DesignIncinerator Design

Capacity- 450 Kg/hr

Burning temp- 910 0 C

Combustion waste type – „Type -1‟

Incinerator type- Retort Multi-chamber

• 2700 Kg/day of NBD waste was projected for DY 2022. It was designed for maximum 6 hr operational hour.

Waste Projection

• Calculated according to “Criteria for Incinerator design and operation” published by MOE Ontario

Dimension calculation • Was done using

IS 456:2000,

Civil Design of Digester

• NRS 8..9 lakh

Cost Estimation

3 3

3.5 3.5

4 4

4.5

5 5

5.5

6

0

1

2

3

4

5

6

7

2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Working Hours

Working Hours

Biogas DesignBiogas Design

No of digester- 2

Design Life – 10 Year

Design capacity- 2300 Kg/day each

HRT- 50 Days

Gas Production rate- 257.6 cu.m per day each

• 4600 Kg/day of BD waste was projected for DY 2022

Waste Projection

• “Biogas Technology” B.T. Nijaguna

Dimension calculation • Was done using IS

456:2000, IS 456:3310 and IS 456:3370

Civil Design of Digester

• 8.06 lakh NRS for each digestor and 16.12 lakh NRS for 2 digestor

Cost Estimation

Potential of BioPotential of Bio--electrificationelectrification

At normal condition can provide 737

KWH of electricity for 11 hours

Enough to light 642 bulb of 100 W for 11

hours daily.

Sufficient for street lamps.

Proposed Location

Banepa MSW

Source Seperation

Non-biodegrable

Waste

Incinerator Plant

Combustible waste

Incineration

Ash

Dumping site

Inert waste

Dumping Site

Scavenger

Biodegradable Waste

Biogas Plant

Anerobic Digestion

Gas Generation

Street Lamp Bioelectrific

ation

Sludge

Sell to Farmer

OP

ER

AT

ION

AL

PL

AN

ConclusionConclusion

Project cost NRS 25, 07,868.81

Can utilize BD waste for economical

purpose

Can decrease the volume of NBD waste

up to 10% thus increasing the life of

dumping site

ISWM using biogas and incinerator can be

efficient method for waste management in

BM

RecommendationRecommendation

Installation of air pollution control

equipments if needed

Installation of pressure gauge and its

continuous check

Detail analysis of suitable location for

biogas and incinerator

GIS mapping of transportation and

collection routing

Further ResearchFurther Research

Biogas

• Seasonal gas generation rate of MSW

• Efficiency enhancement of biogas at MSW

scale

Incinerator

• Steam economy

• Feasibility of productivity of ash

• Emission testing

Selected ReferenceSelected Reference ◦ Kreith, F. (1994). Handbook of Solid Waste Management. New York:

McGraw-Hill.

◦ Nijaguna, B.T. (2006). Biogas Technology. Delhi: New Age Publishers

◦ http://www.unep.org/yearbook/2009/PDF/UNEP_Year_Book_2008_EN_Full.pdf, 2012

◦ Peavy H. S., Rowe D.R. and Tchobanoglous G (1985). “Environmental Engineering”, , New York: McGraw-Hill

◦ Tchobanoglous G., H. Theissen and S.A. Vigil (1993). “Integrated solid waste management: Engineering Principles and Management issues”, McGraw-Hill, New York

◦ http://www.unep.or.jp/ietc/estdir/pub/msw/, 15 June, 2012

◦ Innovative Business Consultancy (2011). “Banepa municipality dumping site management plan”

◦ Banepa Municipality (2067). “Citizen Charter”

◦ Ministry of Environment, Ontario, 1974. “ Criteria for Design of Incinerator”

Thank You