Picture: A sketch representing a hydro-geological setting of a segment of the urbanized earth crust!
A Public Training on Industrial Effluent Treatment Plant is under way, kindly view its detail in this link: http://sekitarsynergy.blogspot.com/2014/03/open-training-industrial.html
(Note: The interpretations provided are based on the author’s professional experience in practice and may not represent those of the authorities, thus the author shall not be deemed liable for any misjudgement thereof.)
Upcoming Public Training.
Application of this law
Regulation-3.
These Regulations shall apply to any premises which
discharge or release industrial effluent or mixed effluent, onto or into any
soil, or into inland waters or Malaysian waters, other than the premises as
specified in the First Schedule*.
Picture: A wet-scrubber, as an air pollution control equipment also generate effluent when its recycled scrubbing liquid agent reached saturation. So, apparently it solves the air impurity issues but generate waste-water or legally known as the Industrial Effluent.
Interpretation in brief:
This
regulation applies
only to industrial and services sectors’ wastewater discharges that
conduct or perform activities regarded by the law as processing, manufacturing, washing or servicing that produces effluent
in the following quantity and quality;
Ø
not exceeding 60m3/day;
Ø
free from Hg, Cd, Cr6+, As, Cn, Pb, Cr3+,
Cu, Mn, Ni, Sn;
Ø BOD at 20oC for 5 days or Suspended Solids or both not
exceeding 6kg/day loading;
Picture: Aeration Pond as commonly found in Malaysian Palm Oil Mills' effluent treatment scheme. Vast land is required to accommodate all the ponds. In future these land area may be worth more than the business. However these waste are biodegradable and that the mill itself is self-sufficing its electrical energy!
*This
regulation does
not apply to the following premises (as an interpretation for “other than the premises as specified in the
First Schedule” in the
regulation above);
Ø Processing of Oil-palm Fruit/Fresh Fruit Bunches to
palm oil; i.e. Palm Oil Mills.
Ø Processing of Natural Rubber to specified applied
forms; i.e. Rubber Mills like SMRs
and Latex factories;
Ø Mining activities; i.e. mining for coal, tin, sand, gold etc.
Regulation-11
stipulates permissible limits for effluent discharges from industrial and
services premises as follows;
FIFTH
SCHEDULE
[Paragraph 11(1)(a)]
ACCEPTABLE CONDITIONS FOR DISCHARGE OF
INDUSTRIAL
EFFLUENT OR MIXED EFFLUENT OF STANDARDS A
AND B
PARAMETERS A B
(i(
Temperature oC 40
40
(ii)
pH Value – 6.0-9.0
5.5-9.0
(iii)
BOD5 at 20oC mg/L 20
50
(iv)
Suspended Solids mg/L 50
100
(v)
Mercury mg/L 0.005
0.05
(vi)
Cadmium mg/L 0.01 0.02
(vii)
Chromium, Hexavalent mg/L 0.05
0.05
(viii)
Chromium, Trivalent mg/L 0.20
1.0
(ix)
Arsenic mg/L 0.05
0.10
(x)
Cyanide mg/L 0.05
0.10
(xi)
Lead mg/L 0.10
0.5
(xii)
Copper mg/L 0.20
1.0
(xiii)
Manganese mg/L 0.20
1.0
(xiv)
Nickel mg/L 0.20
1.0
(xv)
Tin mg/L 0.20
1.0
(xvi)
Zinc mg/L 2.0
2.0
(xvii) Boron mg/L 1.0
4.0
(xviii) Iron (Fe)
mg/L 1.0
5.0
(xix) Silver mg/L 0.1
1.0
(xx) Aluminium
mg/L 10
15
(xxi) Selenium
mg/L 0.02
0.5
(xxii) Barium mg/L
1.0
2.0
(xxiii) Fluoride
mg/L 2.0
5.0
(xxiv)
Formaldehyde mg/L 1.0
2.0
(xxv) Phenol mg/L 0.001
1.0
(xxvi) Free
Chlorine mg/L 1.0
2.0
(xxvii) Sulphide
mg/L 0.50
0.50
(xxviii) Oil and
Grease mg/L 1.0
10
(xxix) Ammoniacal
Nitrogen mg/L 10 20
(xxx)
Colour ADMI* 100 200
*ADMI–American
Dye Manufacturers Institute
Note: COD is regulated in another regulation with conditional
application. Please see Regulation 12 below.
Interpretation in brief for Standard A and B:
This regulation imposes a double standard upon effluent
releases depending on where they are being released along the receiving river;
v
In
general, Standard-A is applied if the point of discharge into the river
is upstream from a water intake point for consumption or water catchment
areas;
v
In
general, Standard-B
is applied if the point of discharge into the river is downstream from a
water intake point for consumption or water catchment areas;
Regulation 12
Acceptable conditions for the discharge of industrial
effluent for parameter of chemical oxygen demand (COD)
Reference:
•
The ‘Seventh Schedule’: COD limits for specific
industrial types;
•
The ‘Sixth Schedule’: location of catchment areas.
a)
Standard-A: into catchment areas listed in the ‘Sixth
Schedule’; i.e. 80 mg/L for most industries.
b)
Standard-B: into other Inland Waters or Malaysian
Waters; i.e. 200 mg/L for most industries.
 |
| Industrial Effluent Treatment Plant - An Example
The raw effluent (influent) that enters this system consists of metallic contaminants (inorganic) in a suspension of organic matters that are sparingly soluble in water. These metals are apparently insoluble at different pH, thus, rendering the use of different coagulation and flocculation agents. In addition, the organic load consists of biologically resistant matters that require aggressive aeration before it progressively degrades to smaller compounds for bacterial action. Operational cost in maintaining this system in ensuring compliance to regulatory requirements is significant. Ironically, the treated effluent discharge portrays a quality resembling local drinking water standards and much cleaner than the receiving monsoon drain water!
|
SEVENTH
SCHEDULE
(Regulation 12)
ACCEPTABLE
CONDITIONS FOR DISCHARGE OF INDUSTRIAL EFFLUENT
CONTAINING
CHEMICAL OXYGEN DEMAND (COD) FOR
SPECIFIC TRADE OR
INDUSTRY
SECTOR
(1)
(2) (3) (4)
Trade/Industry
Unit Standard
A B
(a) Pulp and paper
industry
(i) pulp mill
mg/L
80 350
(ii) paper mill
(recycled) mg/L 80 250
(iii)
pulp and paper mill mg/L 80 300
(b) Textile industry mg/L 80 250
(c)Fermentation and distillery
industry mg/L 400 400
(d)
Other
industries mg/L 80 200
Picture: Decomposition by 'Mulching' is apparently a green practice where agricultural waste such as empty fruit bunches are left to decompose and helps fertilize soils. But over concentrating these agro-waste in a limited space poses another problem - entry of intermediate products from incomplete decomposition into the rivers. Thus, increases the river's organic load that eventually decreases it dissolved oxygen that affects its aquatic inhabitant. For this and many other reasons some local delicacies of wild 'Ikan Patin' species gets dearer! I love Ikan Patin Masak Lemak Cili Padi and Tempoyak. Welcome to Malaysia!
Interpretation in brief for COD:
In other words, industries
that are not listed in the above Seventh Schedule shall subscribe to Standard A (not exceeding 80mg/L) if they are situated upstream
of those sensitive environmental resource or Standard B (not exceeding 200mg/L)
if they are located downstream from such environmental sensitive areas.
If you need to view the bulk of this law, kindly link to: http://sekitarsynergy.blogspot.com/p/iets-law.html
Points to ponder
How the ISO14001's 'Input-Output' Analysis is helpful in identifying Environmental Aspects such Industrial Effluent Parameters as seen above?
 |
| The electroplating process generates an array of Scheduled Wastes. Identification of environmental aspects which are Scheduled Waste requires such comprehensive approach. Legal obligation and liability. |
Reach for the writer Khalid Mohd Ariff
e-mail: sekitar5221@gmail.com
Tel: 019-7725676, +607-2441221
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