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60
ATMOSPHERIC POLLUTION
CLEAN AIR ACT, 1956
During the year under review action was taken under the following sections
of the Act:-
SECTION 1 (Prohibition of dark smoke from chimneys). In the case of the
two offences discovered, one from a pencil manufacturers and the other from a
clothing manufacturers, legal proceedings were authorised.
SECTION 3 (Requirement that new furnaces shall be so far as p racticable
smokeless).
Fifteen notifications of intention to install furnaces were received.
In addition in six of these cases applications for prior approval were made
in respect of eleven furnaces. Where applications for prior approval are
made, the following information is required to be submitted by the applicant,
together with two copies of detailed plans and specifications:-
1. Description of installation, name of manufacturer, size of furnace, type
of grate and grate area
2. Type of fuel to be used and method of "lighting up" If fuel oil, its
viscosity and arrangements for storing and pre-heating
3. Method of firing and combustion rate.
4. Type of draught and air pre-heating.
5. Type of grit and dust arrestor.
6 Estimated residual life of boiler as determined by a recognised firm of
heating engineers
7 Designed output of boiler, working pressure and arrangements for preheating
feed water.
8. Seasonal variations in load anticipated.
9. Maximum demand boiler will have to meet
10 The type of accessories and instruments it is proposed to install to
facilitate the proper control of combustion.
11. Provision for flue gas sampling,
12. The arrangements to be made for -
(a) skilled attention at regular intervals by trained engineers, and
(b) operation by an adequately trained operator
In five of the six applications prior approval was given for limited
periods and on the conditions set out below:-
No. 1 (Installation of a Ho sk inson Space Heating Multi-Fuel Incinerator)
Approval granted for a period of three years, subject to-
(a) The oil burner mounted at the base of the chimney shall be used at all
times when refuse is being incinerated and shall burn light fuel oil of
35 seconds Redwood No. 1 at 100°F.
(b) The installation must be so installed, maintained and operated as to
minimise the emission of smoke.
(c) The installation shall be provided with a chimney of sufficient height
to prevent, as far as practicable any smoke, grit, dust or gases arising
from the furnace from becoming prejudicial to health or a nuisance