MALAYSIA’S REQUIREMENTS ON
INDUSTRIAL EFFLUENT TREATMENTSYSTEMS-The WEPA Workshop and Annual Meeting
18-21 February 2013
Siem Reap, Combodia-bye

NFORCEMENT DIVISION

DEPARTMENT OF ENVIRONMENT, MALAYSIA

Scope of Presentation
Introduction
Regulation Requirements
Control Based on Engineering Design of IETS
Performance Monitoring of IETS
Contravention Licence1

Written Notification

Introduction
Industrial Effluent Treatment Systems:
any facility including the effluent collection
system, designed and constructed for thepurpose of reducing the potential of the industrial
effluent or mixed effluent to cause pollution.
“industrial effluent” means any waste in the formof liquid or wastewater generated frommanufacturing process including the treatment ofwater for water supply or any activity occurring at
any industrial premises;

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INDUSTRIAL EFFLUENT TREATMENT SYSTEMS (IETS)
Section 4 in Industrial Effluent Regulation, 2009 (IE2009)*a premise is required to notify DOE for:New sources
Increase in production capacity resulting inincrease in effluent quantity
IETS upgrading resulting in worsenedeffluent quality*[written notification requirement to replaces thewritten permission in SIER1979]

Industrial Effluent Treatment
System (IETS)
Section 5 and Section 6: Specification on IETS-Design and Operation-

 Needs to comply with the Guidance Document on
Design and Operation (GDDO);
 Undertaken by professional engineers;
 IETS must comply with stipulated operational
characteristics

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Written Declaration on Design and Constructionof IETS(NEW and ALTERED SOURCES OF EFFLUENTDISCHARGE)-Declare that the industrial effluent treatment system has been
designed and constructed in strict compliance with theminimum requirements and specifications as specified in theGuidance Document by:•Owner•Engineer responsible for the treatment design process•Engineer responsible for the structural design•Engineer responsible for the design of mechanicalcomponents•Engineer responsible for the design of mechanical andelectronic components

4

5

Control Based on Engineering
Design of IETSEngineering Design of IETS
Common Industrial Effluent Treatment Systemused in industries in Malaysia
1. Physcio-Chemical Treatment Processes• Chemical Precipitation• Oxidation/reduction• Dissolved Air Floatation (DAF)
2. Biological Treatment Processes
Activated Sludge
Sequential Batch Reactor☺ Oxidation Ponds☺ Trickling filters☺ Anaerobic Upflow Sludge Blanket (AUSB)
☺
☺

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Engineering Design of IETS
Common Industrial Effluent Treatment Systemused in industries in Malaysia

3. Advanced Treatment Processes
 Ion Exchange Activated Carbon Adsorption
 Filtration
4. Treatment of Sludge
 Sludge drying bed
 Filter Press Belt press
 Centrifugal separation

13Engineering Design of IETS

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Sequential Batch Reactor

Industrial Effluent
TreatmentSystems8

Facultative Pond
Oil trap

Anaerobic pond
B

Facultativepond B

Finaldischarge
B

Cooling pond

Mixing pond

Anaerobic pond
C

Facultative
pond C

Facultative
pond B

Facultativepond A

Algae pond B

Facultative
pond A

Finaldischarge
A&B

Algae pond A

Facultative
pond C

Algae pond C9

Engineering Design of IETS
Ponding System

Oil trap

Cooling pond

Mixing pond

Anaerobic pond

Facultative pond

Algae pond

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Discharge Monitoring
Section 7 IE2009
A.

To monitor the quantity and quality of effluent
discharged on a weekly basis

B.

Relevant parameters are to be monitored based on
guidance given in the Guidance Document on
Performance Monitoring (GDPM)C.

On line the monthly discharge monitoring report(MDMR) needs to be submitted to DOE on amonthly basis

Proper Operation of IETS
-Section 8 IE2009-

to operate and maintain the IETS ingood working condition within theacceptable ranges/characteristics as
specified in the Guidance Document
on Performance Monitoring

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SECTION 9 IE2009

Operation of Industries andPerformance Monitoring of IETS

12Operation of Industrial Effluent
Treatment Systems
WHAT IS PERFORMANCE MONITORING?
Handle proper operation and maintenance
Proactive & preventive monitoring of certain
parameters to provide a diagnostic indication toensure that each component of Industrial Effluent
Treatment Systems are operating optimally.
Parameters to monitor our “health status”=“health of unit operations/processes” of IETS

Analytical Requirements

Performance monitoring is based on insitu measurements using portableequipment or on-line sensors
Final effluent samples to follow Standard
Methods

13COMPETENT PERSON
Regulatory Requirements on
Performance Monitoring(Section 10 IE2009)
The operation of an IETS needs to besupervised by a competent person (CP)-any person who has been certified by theDirector General-on duty at any time of the IETS in operation-monitor all components, unit
processes/operations of the IETS*[Nominated CP by premise needs to attend 10 days course
program executed by EiMAS, practical training attachement andsubmission a project works before certified as CP by the GD ofDOE]

Performance Monitoring of Biological Processes

3 different types of monitoring parameters:
to ensure biological process are functioning
optimally e.g. pH, DO, and nutrientsto provide diagnostic check on the “health”
status of various unit operations and unitprocesses e.g. MLSS & MLVSS, SVI
To indicate overall efficiency of the treatment
system e.g. BOD & COD.

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Dissolved Oxygen

DO concentration of about 1.5 to 4.0 mg/L;
typically 2 mg/L
Insufficient oxygen promotes growth offilamentous organisms affecting sludge
settleability
using a portable hand-held DO meter ormeasured continuously by on-line DO
sensorSludge Volume Index

SVI

SVI is used as an indication of settlingcharacteristics of sludge and todetermine recirculation ratio
Poor settling sludge results in a
reduced BOD removal efficiency
SVI :<50 excellent,50-100 good,100-150
satisfactory, >150 very poor (bulkingof sludge)

15Nutrients

Many industrial effluents lack in nutrients
Nutrient balance should be periodically checked
The rule of thumb for BOD5: N: P ~ 100: 5: 1.
Typical signs of nutrient deficiency are
filamentous growth and bulking of activatedsludge.

Performance Monitoring of Physical and Chemical
Processes

Heavy Metals Removal by Precipitation andCoagulation Reactions
Coagulation and precipitation reactions work
best within narrow pH range
Solubility of metals is controlled by thesolution pH where it is lowest at the point ofminimum solubility
pH is the most useful parameter monitored16

Performance Monitoring and Testing Guide for Biological Unit
Processes

Activated Sludge
PHDO
MLSS
MLVSS
OXYGEN UPTAKENUTRIENTS
SVI

Daily
Daily
Daily/weekly
Weekly/monthly
Weekly/monthly
Weekly/monthly
Weekly/monthly

PRACTICE OF PERFORMANCEMONITORING WILL…
Cultivate the maintenance culture
Cultivate self monitoring & regulation
Ensure continued optimal performance (TIPTOP) of IETS
Ensure continued regulatory complianceHelp avoid IETS failure
Help avoid costly recovery action
Help avoid regulatory enforcement

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SECTION 15IE2009
Contravention Licence•Polluter pay principle•Licence to pollute•New or Upgrading IETS….last not least……IE2009
SECTION 32………besides compound (RM 2000 each);conviction through court action carries amaximum penalty of RM100,000 PLUS 5 year
jail……….

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Thank YouVery Much19