ENV 506Integrated Solid Waste Management

A report on the visit toBukit Tagar Sanitary Landfill (BTSL)

[6th September 2007]ZUFADZLI BIN ZAKARIA

2005390304HS223/07. UiTM Jalan Othman.

1. INTRODUCTION

The Stake Holders

KUB-Berjaya Enviro Sdn. Bhd. (KBE) Joint-venture company between KUB Malaysia Berhad

and Berjaya Corporation Berhad. Public listed company (Plc.), listed on Kuala Lumpur

Stock Exchange (KLSE)

Supervision

Government of Malaysia Ministry of Housing and Local Government

2. LOCATION

Hulu Selangor district Approximately 50Km north of Kuala Lumpur Developed on 700 acres land area 1,000 acres of buffer zone Surrounded by palm plantation Accessible from North-South Expressway

(PLUS) via Bukit Tagar Interchange (Exit 113B)

Location Map

BTSL Plan

BTSL Phases

3. DESIGN AND FACILITIES

Fully engineered Level IV landfill with complete High Density Polyethylene (HDPE) membrane liner

Leachate collection and treatment systems Comprehensive ground and surface water monitoring

systems 17 phases over 40 years 120 million metric tones of air space capacity Serves municipal and non-toxic (scheduled) solid

waste for Central region of Selangor and Kuala Lumpur

Primarily routed from Kuala Lumpur Solid Waste Transfer Station in Kepong

BTSL Schematic Design

3.1 Landfill Operation

Manpower: 45. Headed by Operations General Manager. Three shifts, seven days a week (24-hours)

24-hours security patrols and checkpoint for screening of incoming wastes

Smartcard systems for vehicle identification and data logging

Full range of trucks and compactors

3.2 Leachate Management

Leachate Treatment Plant Features Treatment capacity – 1,000 cubic meters per day Four leachate holding ponds – 180,000 cubic

meters leachate storage capacity SCADA systems; computerized and automated

controls of pumps and valves Primarily biological reaction with series of

chemical dosing Equipped with four Sequential Batch Reactor

(SBR) lagoons

continue…

3.2 Leachate Management

…continued Red beds – consists of phragmites plant capable

of absorbing residues in treated leachate 24 aerators Chemicals storage and dosing systems Balancing tanks Sludge thickener Dissolved air floatation plant

3.2 Leachate Management

Treated Effluent Management Zero discharge policy Treated effluent is irrigated into 120 acres field;

allowing the effluent to undergo evapotranspiration and soil moisture retention processes

Leachate Quality Test Conducted on daily, weekly and fortnightly basis at

SBR lagoons pH, nitrites, nitrates, ammoniacal nitrogen, dissolved

oxygen (DO), BOD, COD

3.2 Leachate Management

Gas Monitoring Waste gas is channeled via pipes and vented to

outside environment No specific gas collection system is currently

employed Future plan includes biogas collection system with

biogasification plant to produce electrical energy for BTSL energy requirement

3.3 Environmental Management

Surface Water Management System Storm water runoff is diverted away from landfill

via surface drains towards open water courses, silt traps and detention ponds

Daily earth cover to prevent ilfiltration of rain water Regular desilting of silt traps

3.3 Environmental Management

Environmental Monitoring Surface and ground water monitoring on monthly

basis pH, nitrites, nitrates, ammonia, e-coli, suspended

solids and trace metals Ambient air quality and noise levels on quarterly

basis Quarterly Environment Monitoring Reports to be

submitted to the DOE Early Warning and Emergency Containment

System (see chapter 3.4)

3.4 Emergency Preparedness

Emergency response system Leachate containment bund to prevent accidental

leachate breakout Continuous flow meter Detention dam Holding ponds

On-going training comprehensive training program to ensure optimum standards Regular briefing Trial runs on safety and emergency procedures

4. DISCUSSION

Location of landfill is suitable Proper, direct and easy access via PLUS

expressway Not far away from Klang Valley Minute area with sparse human population

Continue…

4. DISCUSSION

Superb design and facilities Fully engineered Level IV landfill World class technology with computerized,

automated and integrated leachate management Protection to the environment quite well done, but

no ISO14001 Gas monitoring and collection

No collection of waste gas is being employedContinue…

4. DISCUSSION

Environmental monitoring Good efforts, but monitoring schedule only for

quarterly basis

Environmental protection Good efforts

Health and Safety Can be improved; holistic medical surveillance of

staff PPE; should be supervised and updated from time

to time

5. CONCLUSION

BTSL is a newly operated Level IV landfill with advanced leachate treatment facilities

Currently, only Phase 1 is operational Accepts municipal, non-hazardous solid

waste from Central Region of Selangor and Kuala Lumpur

Future plan include utilization of biogas Future land use for recreational purpose

6. REFERENCES