• Afif Sani

Summary of Malaysian Industrial Effluent Regulation 2009

Updated: May 31



What is the Malaysian Industrial Effluent Regulation?

  1. These Regulations apply to any premises which discharge or release industrial effluent or mixed effluent onto or into any soil, or into any inland waters.

  2. Any work that may result in a new source of discharge of industrial effluent must be authorized by the Director General according to the provisions set out in the text.

  3. The Regulations set forth procedures for the design and construction of industrial effluent treatment systems, and acceptable conditions of the discharge of industrial or mixed effluent.

  4. The Regulations further provide for: monitoring of discharge of industrial effluent or mixed effluent; point of discharge of industrial or mixed effluent; containment measures for spills or accidental discharge of industrial or mixed effluent; prohibition of discharge of industrial effluent containing certain substances; restrictions on the discharge of sludge onto land or into inland waters; licence fees; penalties; etc.

Download the full document of Industrial Effluent Regulation 2009 here:

Environmental_Quality_Industrial_Effluent_Regulations_2009_-_P.U.A_434-2009
.pdf
Download PDF • 7.64MB

What is Standard A & Standard B?

Standard A is applicable to discharge into any water within any catchment areas, and standard B is applicable to discharge into any other inland waters or Malaysian waters.


You can identify if your location follows standard A or B by looking at the table in the document. You can also contact the Department of Environment to get further explanation.


Industrial Effluent Regulation 2009 Limits

The limits are as below:


Standard A

No

Parameter

Limit

1

Temperature

40 °C

2

pH Value

6.0-9.0

3

BOD 5 at 20°C

20 mg/L

4

COD

*see section below

5

Suspended Solids

50 mg/L

6

Mercury

0.005 mg/L

7

Cadmium

0.01 mg/L

8

Chromium, Hexavalent

0.05 mg/L

9

Chromium, Trivalent

0.20 mg/L

10

Arsenic

0.01 mg/L

11

Cyanide

0.05 mg/L

12

Lead

0.10 mg/L

13

Copper

0.20 mg/L

14

Manganese

0.20 mg/L

15

Nickel

0.20 mg/L

16

Tin

0.20 mg/L

17

Zinc

2.0 mg/L

18

Boron

1.0 mg/L

19

Iron (Fe)

1.0 mg/L

20

Silver

0.1 mg/L

21

Aluminium

10 mg/L

22

Selenium

0.02 mg/L

23

Barium

1.0 mg/L

24

Fluride

2.0 mg/L

25

Formaldehyde

1.0 mg/L

26

Phenol

0.001 mg/L

27

Free Chlorine

1.0 mg/L

28

Sulphide

0.50 mg/L

29

Oil and Grease

1.0 mg/L

30

Ammoniacal Nitrogen

10 mg/L

31

Colour

100 ADMI

Standard B


No

Paramater

Limit

1

Temperature

40°C

2

pH Value

5.5-9.0

3

BOD 5 at 20 °C

50 mg/L

4

COD

*See section below

5

Suspended Solids

100 mg/L

6

​Mercury

0.05 mg/L

7

Cadmium

0.02 mg/L

8

Chromium, Hexavalent

0.05 mg/L

9

Chromium, Trivalent

1.0 mg/L

10

Arsenic

0.1 mg/L

11

Cyanide

0.1 mg/L

12

Lead

0.5 mg/L

13

Copper

1.0 mg/L

14

Manganese

1.0 mg/L

15

Nickel

1.0 mg/L

16

Tin

1.0 mg/L

17

Zinc

2.0 mg/L

18

Boron

4.0 mg/L

19

Iron (Fe)

5.0 mg/L

20

Silver

1.0 mg/L

21

Aluminium

15.0 mg/L

22

Selenium

0.5 mg/L

23

Barium

2.0 mg/L

24

Fluoride

5.0 mg/L

25

Formaldehyde

2.0 mg/L

26

Phenol

1.0 mg/L

27

Free Chlorine

2.0 mg/L

28

Sulphide

0.50 mg/L

29

Oil and Grease

10 mg/L

30

Ammoniacal Nitrogen

20 mg/L

31

Colour

200 ADMI

Chemical Oxygen Demand (COD) Limits

COD limits are determined according to industry.

Trade/Industry

Standard A (mg/L)

Standard B (mg/L)

Pulp Mill

80

350

Paper Mill (recycled)

80

250

Pulp and Paper Mill

80

300

Textile Industry

80

250

Fermentation and Distillery

400

400

Other Industries

80

200

Feel free to contact us if you have any questions regarding monitoring of discharge of industrial effluent.

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