Notices > List of Activities which result in atmospheric emissions which have or may have a significant deterimental effect on the environment, including health, social conditions, economic conditions, ecological conditions or cultural heritage > Part 3 : Minimum Emission Standards

Category 4: Metallurgical Industry

(1)	Subcategory 4.1: Drying and Calcining

Description:	Drying and calcining of mineral solids including ore.
Application:	Facilities with capacity of more than 100 tons/month product.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	1000
		Existing	1000
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	1200

(2)	Subcategory 4.2: Combustion Installations

Description:	Combustion installations not used for primarily for steam raising and electricity generation (except drying).
Application:	All combustion installations (except test or experimental)
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	2000

(a) The following special arrangements shall apply—

(i)	Reference oxygen content appropriate to fuel type must be used.

(ii)	Where co-feeding with waste materials with calorific value allowed in terms of the Waste Disposal Standards published in terms of the Waste Act, 2008 (Act No.59 of 2008) occurs, additional requirements under subcategory 1.6 shall apply.

(iii)

Additional requirements under subcategory 1.6 shall continue to apply even after the waste ceases to be waste in terms of section 1 of the National Environmental Management: Waste Act, 2008 (Act No. 59 of 2008), as amended by the National Environmental Management: Waste Amendment Act, 2014 (Act No. 26 of 2014).

[Category 4(2)(4.2)(a)(iii) inserted by section 4(a) of Notice No. 551, GG38863, dated 12 June 2015]

(3)	Subcategory 4.3: Primary Aluminium Production

Description:	Primary aluminium production.
Application:	All installations
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	Reduction (New)	250
		Reduction (Existing)	250
		Carbon Process (New)	500
		Carbon Process (Existing)	500
Total Volatile Organic Compounds	N/A	New	40
		Existing	40
Total fluorides measured as Hydrogen fluoride	F as HF	New	0.5
		Existing	1

[Category 4(3)(4.3) substituted by section 4(b) of Notice No. 551, GG38863, dated 12 June 2015]

(4)	Subcategory 4.4: Secondary Aluminium Production

Description:	Secondary aluminium production and alloying through the application of heat (excluding metal recovery, covered under Subcategory 4.21).
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Total fluorides measured as Hydrogen fluoride	F as HF	New	1
		Existing	5
Total volatile organic compounds	N/A	New	40
		Existing	40
Ammonia	NH3	New	30
		Existing	100

(5)	Subcategory 4.5: Sinter Plants

Description:	Sinter plants for agglomeration of fine ores using a heating process, including sinter cooling where applicable.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	1000
Oxides of nitrogen	NOx expressed as NO2	New	700
		Existing	1200

(6)	Subcategory 4.6: Basic Oxygen Furnaces

Description:	Basic oxygen furnaces in the steel making industry
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	500

(a)	The following special arrangements shall apply—

Secondary fume capture installations shall be fitted to all new furnace installations.

(7)	Subcategory 4.7: Electric Arc Furnaces (Primary and Secondary)

Description:	Electric arc furnaces in the steel making industry
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	500

(a)	The following special arrangements shall apply—

Secondary fume capture installations shall be fitted to all new furnace installations.

(8)	Subcategory 4.8: Blast Furnaces

Description:	Blast furnace operations.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	500

(a)	The following special arrangements shall apply—

Secondary fume capture installations shall be fitted to all new furnace installations.

(9)	Subcategory 4.9: Ferro-alloy Production

Description:	Production of alloys of iron with chromium, manganese, silicon or vanadium, the separation of titanium slag from iron-containing minerals using heat.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	400
		Existing	750
Particulate matter from primary fume capture system, open and semi-closed furnaces
Particulate matter	N/A	New	30
		Existing	100
Particulate matter from primary fume capture system, closed furnaces

Particulate matter	N/A	New	50
		Existing	100
Particulate matter from secondary fume capture system, all furnaces
Particulate matter	N/A	New	50
		Existing	100

(a)	The following special arrangements shall apply—

(i)	Secondary fume capture installations shall be fitted to all new furnace installations.

(ii)	Emission of Cr(VI), Mn and V from primary fume captures systems of ferrochrome, ferromanganese and ferrovanadium furnaces respectively to be measured and reported to licensing authority annually.

(10)	Subcategory 4.10: Foundaries

Description:	Production and or casting of iron, iron ores, steel or ferro-alloys, including the cleaning of castings and handling of casting mould materials.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Sulphur dioxide	SO2	New	400
		Existing	400
Oxides of nitrogen	NOx expressed as NO2	New	400
		Existing	1200

(11)	Subcategory 4.11: Agglomeration Operations

Description:	Production of pellets or briquettes using presses, inclined discs or rotating drums.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	100
Ammonia	NE3	New	30
		Existing	50

(12)	Subcategory 4.12: Pre-Reduction and Direct Reduction

Description:	Production of pre-reduced or metallised ore or pellets using gaseous or solid fuels.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide (from natural gas)	SO2	New	100
		Existing	500
Sulphur dioxide (from all other fuels)	SO2	New	500
		Existing	1700
Oxides of nitrogen	NOx expressed as NO2	New (gas based)	500
		New (all other fuels)	1000
		Existing	2000

(13)	Subcategory 4.13: Lead Smelting

Description:	The extraction, processing and use of lead in production by the application of heat. The production of lead-containing electric batteries.
Application:	All installations using more than 20 Kg/month. All installations producing lead-containing electric batteries.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	30
Lead	Pb (as fraction of Total Suspended Particles	New	2
		Existing	2

(14)	Subcategory 4.14: Production and Processing of Zinc, Nickel and Cadmium

Description:	The extraction, processing and production of zinc, nickel or cadium by the application of heat excluding metal recovery.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of nitrogen	NOx expressed as NO2	New	500
		Existing	500
Mercury	Hg	New	0,2
		Existing	1,0
Dioxins	PCDD/PCDF	New	0,1ng TEQ
		Existing	No standard proposed

(a)	The following transitional arrangements shall apply—

Facilities processing nickel or cadmium shall measure or estimate, using a method to the satisfaction of the licensing authority, and report the emission of Ni and Cd respectively to the licensing authority annually, commencing immediately.

(15)	Subcategory 4.15: Processing of Arsenic, Antimony, Beryllium, Chromium and Silicon

Description:	The metallurgical production and processing of arsenic, antimony, beryllium, chromium and silicon and their compounds by the application of heat.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	20
		Existing	30

(16)	Subcategory 4.16: Smelting and Converting of Sulphide Ores

Description:	Processes in which sulphide ores are smelted, roasted calcined or converted (Excluding Inorganic Chemicals-related activities regulated under Category 7).
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Oxides of nitrogen	NOx expressed as NO2	New	350
		Existing	2000
Sulphur dioxide (feed SO2 <5% SO2 )	SO2	New	1200
		Existing	3500
Sulphur dioxide (feed SO2 >5% SO2 )	SO2	New	1200
		Existing	2500

(a)	The following transitional arrangements shall apply—

All facilities must install apparatus for the treatment of the sulphur content of the off-gases.

(17)	Subcategory 4.17: Precious and Base Metal Production and Refining

Description:	The production of processing of precious and associated base metals through chemical treatment (Excluding Inorganic Chemicals-related activities regulated under Category 7).
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Chlorine	CI2	New	50
		Existing	50
Sulphur dioxide	SO2	New	400
		Existing	400
Hydrogen chloride	HCI	New	30
		Existing	30
Hydrogen fluoride	HF	New	30
		Existing	30
Ammonia	NH3	New	100
		Existing	100
Oxides of nitrogen	NOx expressed as NO2	New	300
		Existing	500

(a)	The following special arrangements shall apply—

Thermal treatment standard are not applicable to precious and base metal refining processes.

(18)	Subcategory 4.18: Vanadium Ore Processing

Description:	The processing of vanadium-bearing ore or slag for the production of vanadium oxides or vanadium carbide by the application of heat.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	50
Sulphur dioxide	SO2	New	1200
		Existing	3500
Ammonia	NH3	New	30
		Existing	b

(a)	The following transitional arrangements shall apply—

Plants processing vanadium ore or slag for the production of vanadium oxides shall report the emissions of vanadium and its compounds to the licensing authority annually, commencing immediately .

(b)	The following special arrangements for ammonia emissions shall apply—

(i)	Emission limits for ammonia shall be negotiated with the licensing authority, on the basis of the existing permits and submission of atmospheric impact reports.

(ii)	Existing Plants shall submit atmospheric impact reports to the licensing authority on its ammonia impact annually.

(19)	Subcategory 4.19: Production and or Casting of Bronze, Brass and Copper

Description:	The production and or casting of bronze, brass and copper.
Application:	All installations producing more than 10 tons per day of product in aggregate.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	500
		Existing	500
Oxides of Nitrogen	NOx expressed as NO2	New	1000
		Existing	1200

(20)	Subcategory 4.20: Slag Processes

Description:	The processing or recovery of metallurgical slag by the application of heat.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	50
		Existing	100
Sulphur dioxide	SO2	New	1500
		Existing	2500
Oxides of Nitrogen	NOx expressed as NO2	New	350
		Existing	2000

(a)	The following transitional arrangements shall apply—

Facilities processing slag by the application of heat for the recovery of chromium or manganese content shall report the emissions of Cr(lll) and Cr(VI) or Mn and its compounds respectively to the licensing authority annually, commencing immediately.

(21) Subcategory 4.21: Metal Recovery

Description:	The recovery of metal from any form of scrap material by the application of heat.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	10
		Existing	25
Carbaon monoxide	CO	New	50
		Existing	75
Sulphur dioxide	SO2	New	50
		Existing	50
Oxides of nitrogen	NOx expressed as NO2	New	200
		Existing	200
Hydrogen chloride	HCI	New	10
		Existing	10
Hydrogen fluoride	HF	New	1
		Existing	1
Sum of Lead, arsenic, antimony, chromium, cobalt, copper, manganese, nickel, vanadium	Pb+ As+ Sb+ Cr+ Co+ Cu+ Mn+ Ni+ V	New	0.5
		Existing	0.5
Mercury	Hg	New	0.05
		Existing	0.05
Cadmium Thallium	Cd+TI	New	0.05
		Existing	0.05
Total organic compounds	N/A	New	10
		Existing	10
Ammonia	NH3	New	10
		Existing	10
			ng I-TEQ/Nm3 under normal conditions of 10% O2, 273 Kelvin and 101.3 kPa.
Dioxins and furans	PCDD/PCDF	New	0.1
		Existing	0.1

(22)	Subcategory 4.22: Hot Dip Galvanizing

Description:	The coating of steel articles with zinc using molten zinc, including the pickling and/or fluxing of articles before coating.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	10
		Existing	15
Hydrogen Chloride	HCI	New	30
		Existing	30

(23)	Subcategory 4.23: Metal Spray

Description:	The coating of metals using molten metal.
Application:	All installations.
Substance or mixture of substances		Plant status	mg/Nm3 under normal conditions of 273 Kelvin and 101.3kPa.
Common name	Chemical symbol
Particulate matter	N/A	New	30
		Existing	50

National Environmental Management: Air Quality Act, 2004 (Act No. 39 of 2004)

Notices

List of Activities which result in atmospheric emissions which have or may have a significant deterimental effect on the environment, including health, social conditions, economic conditions, ecological conditions or cultural heritage

Category 4: Metallurgical Industry