30
CAP. 311]
Air Pollution Control
[1987 Ed.
Process
3. Cement Works
4. Ceramic Works
5. Chlorine Works
6. Copper Works
7. Electricity Works
8. Gas Works
9. Iron and Steel Works
Description
(d) aluminium is extracted from any material
containing aluminium; or
(e) oxide of aluminium is extracted from any
ore;
and any materials used in the above processes.
Works in which the total silo capacity exceeds 10,000 tonnes and in which cement is handled or in which argillaceous and calcareous materials are used in the production of cement clinker and works in which cement clinker is ground.
Works in which the processing capacity exceed 2 tonnes or, if the mode of operation is continuous, 0.67 tonne per day, and in which---
(a) pottery products (including domestic earth-ware and china, sanitary ware, electrical porcelain, glazed tiles and teapots) are made in intermittent kilns fired by coal or oil;
(b) heavy clay or refractory goods are fired by
coal or oil in-
(i) intermittent kilns;
(ii) continuous grate-fired kilns, not being tunnel kilns; or
(iii) any kiln in which a reducing atmos-phere is essential; or
(c) salt glazing of any earthenware or clay mate-rial is carried on.
Works in which chlorine is made or used in any manufacturing process.
Works in which the processing capacity exceeds 0.5 tonne (expressed as copper) or, if the mode of operation is continuous, 0.45 tonne (expressed as copper) per hour and in which---
(a) by the application of heat---
(i) copper is extracted from any ore or concentrate or from any material containing copper or its compounds;
(ii) molten copper is refined;
(iii) copper or copper alloy swarf is de-greased; or
(iv) copper alloys are recovered from scrap fabricated metal, swarf or residues by processes designed to reduce the zinc con-tent; or
(b) copper or copper alloy is melted and cast in moulds the internal surfaces of which have been coated with grease-bound or oil-bound dressings.
Works in which fossil fuel is burnt either wholly for or as part of the process of electricity genera-tion where the installed generation capacity of such works exceeds 5 MW.
Works in which coal, coke, oil or any mixtures or derivatives thereof are handled or prepared for carbonization or gasification and in which such materials are subsequently carbonized or gasified.
Works in which the installed furnace capacity exceeds 1 tonne, or, if the mode of operation is continuous, 1 tonne per hour, and in which a ferrous metal melting process for casting is carried out. (Amended, 23 of 1987, s. 16)
30
CAP. 311]
Air Pollution Control
[1987 Ed.
Process
3. Cement Works
4. Ceramic Works
5. Chlorine Works
6. Copper Works
7. Electricity Works
8. Gas Works
9. Iron and Steel Works
Description
(d) aluminium is extracted from any material
containing aluminium; or
(e) oxide of aluminium is extracted from any
ore;
and any materials used in the above processes.
Works in which the total silo capacity exceeds 10 000 tonnes and in which cement is handled or in which argillaceous and calcareous materials are used in the production of cement clinker and works in which cement clinker is ground.
Works in which the processing capacity exceed 2 tonnes or, if the mode of operation is continuous, 0.67 tonne per day, and in which---
(a) pottery products (including domestic earth- enware and china, sanitary ware, electrical porcelain, glazed tiles and teapots) are made in intermittent kilns fired by coal or oil;
(b) heavy clay or refractory goods are fired by
coal or oil in-
(i) intermittent kilns;
(ii) continuous grate-fired kilns, not being tunnel kilns; or
(iii) any kiln in which a reducing atmos- phere is essential; or
(c) salt glazing of any earthenware or clay mate-
rial is carried on.
Works in which chlorine is made or used in any manufacturing process.
Works in which the processing capacity exceeds 0.5 tonne (expressed as copper) or, if the mode of operation is continuous, 0.45 tonne (expressed as copper) per hour and in which---
(a) by the application of heat---
(i) copper is extracted from any ore or concentrate or from any material containing copper or its compounds;
(ii) molten copper is refined;
(iii) copper or copper alloy swarf is de- greased; or
(iv) copper alloys are recovered from scrap fabricated metal, swarf or residues by processes designed to reduce the zinc con- tent; or
(b) copper or copper alloy is melted and cast in moulds the internal surfaces of which have been coated with grease-bound or oil-bound dressings.
Works in which fossil fuel is burnt either wholly for or as part of the process of electricity genera- tion where the installed generation capacity of such works exceeds 5 MW.
Works in which coal, coke, oil or any mixtures or derivatives thereof are handled or prepared for carbonization or gasification and in which such materials are subsequently carbonized or gasified.
Works in which the installed furnace capacity exceeds 1 tonne, or, if the mode of operation is continuous, I tonne per hour, and in which a ferrous metal melting process for casting is carried out. (Amended, 23 of 1987, s. 16)
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