HC Deb 17 July 1991 vol 195 cc207-9W
Mr. William Ross

To ask the Secretary of State for Northern Ireland (1) which method for disposing of the combustion gases would be used at the incinerator proposed for the Maydown, Londonderry site;

(2) what gas cleaning system is intended for the proposed incinerator at Maydown, Londonderry;

(3) at what level above the stoichiometric requirements for complete combustion it is intended that air should be supplied at the proposed incinerator at Maydown, Londonderry;

(4) what system of quenching combustion gases is intended for the proposed incinerator at Maydown, Londonderry;

(5) what type of kiln is intended for the proposed incinerator at Maydown, Londonderry;

(6) what system of introducing combustion air into the furnace is intended for the proposed incinerator at Maydown, Londonderry;

(7) what kind of combustion chamber is intended for the proposed incinerator at Maydown, Londonderry;

(8) what waste feed arrangements for reactive and other difficult wastes are intended for the proposed incinerator at Maydown, Londonderry.

Mr. Needham

Such details are not yet available and can be provided only if and when Du Pont (UK) Ltd. submits a planning application and accompanying environmental statement for a toxic waste incinerator at its Maydown site.

Mr. William Ross

To ask the Secretary of State for Northern Ireland if he will publish the outline information provided by Du Pont UK Ltd. in relation to the possible siting of a toxic waste incinerator at Maydown, Londonderry.

Mr. Needham

Such details are not available. No planning application has been lodged by Du Pont (UK) Ltd. in relation to the possible siting of a toxic waste incinerator at Maydown, Londonderry.

Mr. William Ross

To ask the Secretary of State for Northern Ireland if he will make it his policy to ensure that

receive a block allocation for capital expenditure. Instead, the consent of my right hon. Friend is required to incur any liability to meet capital expense for individual projects. Capital expenditure in itself is not a complete measure of the resources used in establishing flood warning systems. However, details of the proportion of RPB's annual capital expenditure used for flood warning systems since 1985 are set out in the table.

the heating process at the proposed incinerator at Maydown, Londonderry, is effective in disposing of toxic wastes.

Mr. Needham

The proposed incinerator will not be permitted to come into operation unless the Department of the Environment for Northern Ireland is fully satisfied that the equipment and procedures involved are so designed that the incinerator can fulfil safely and effectively its purpose of disposing of those wastes for which it is specified and that emission standards are fully met.

Mr. William Ross

To ask the Secretary of State for Northern Ireland if he will make it his policy to publish a detailed environmental risk assessment of the proposed incinerator at Maydown, Londonderry.

Mr. Needham

If Du Pont (UK) Ltd. proceeds with its proposal to site a toxic waste incinerator at Maydown, the environmental statement which must accompany the planning application under schedule 1(B) of the Planning (Assessment of Environmental Effects) Regulations (NI) 1989 will address the issue of risk to the environment. The statement will be made available to the public and for consideration during the public local inquiry into the project.

Mr. William Ross

To ask the Secretary of State for Northern Ireland what level of exposure of gases to catalytic metals in the structure of the plant will take place at the proposed incinerator at Maydown, Londonderry.

Mr. Needham

Such structural design details are not available but may become so if and when Du Pont (UK) Ltd. submits a planning application for a toxic waste incinerator at its Maydown site.

Mr. William Ross

To ask the Secretary of State for Northern Ireland what is the expected lifetime of the incinerator proposed for the Maydown site in Londonderry.

Mr. Needham

An incinerator of the type which may be proposed at this site could be expected to last approximately 20 years.

Mr. William Ross

To ask the Secretary of State for Northern Ireland what method of disposing of halogenated acids it is intended should be used at the proposed incinerator at Maydown, Londonderry.

Mr. Needham

Such details are not yet available and can be provided only if and when Du Pont (UK) Ltd. submit a planning application and accompanying environmental statement for a toxic waste incinerator at its Maydown site. However, for the design to be approved, it will be necessary for the company to satisfy the Department of the Environment for Northern Ireland that the incinerator will be capable of destroying those wastes for which it is intended, without contravening the emission controls set.

Mr. William Ross

To ask the Secretary of Slate for Northern Ireland what constraints the incinerator proposed for the Maydown, Londonderry site will meet for gaseous emissions of(a) particulate matter, (b) lead, (c) cadmium and mercury, (d) hydrochloric acid, (e) hydrofluoric acid, (f) hydrobronic acid, (g) total acid as SO3 (h) NO2 (i) SO2, (j) phosphorous, (k) destructive and removal efficacy of polychlorinated biphenyls and (l) total dioxin/furan equivalents.

Mr. Needham

I refer the hon. Gentleman to the reply I gave on 26 June 1991,Official Report, column 488.

Such details are not available and can be provided only if and when Du Pont (UK) Ltd. submits a planning application with accompanying environmental statement for a toxic waste incinerator at its Maydown site.

Mr. William Ross

To ask the Secretary of State for Northern Ireland what is the intended degree of burn-out of solids as measured on ignition of kiln slag at the incinerator proposed for the Maydown, Londonderry site.

Mr. Needham

Such details are not yet available and can be provided only if and when Du Pont (UK) Ltd. submit a planning application and accompanying environmental statement for a toxic waste incincerator at their Maydown site. However, the requirements set by the Government will ensure that the degree of burnout achieved at any such incinerator will be sufficient fully to destroy all material for which the plant is designed.

Mr. William Ross

To ask the Secretary of State for Northern Ireland for what proportion of time the incinerator proposed for the Maydown, Londonderry site will be able to operate without visible emissions or visible steam plumes from the stack.

Mr. Needham

Such details are not yet available and may become so only if and when Du Pont (UK) Ltd. submits a planning application and accompanying environmental statement for a toxic waste incinerator at its Maydown site. Emissions to the atmosphere from the proposed incinerator would be subject to control by the Department of the Environment for Northern Ireland. The presence of visible emissions or steam plumes is likely to be dependent on the chosen methods of emission control.

Mr. William Ross

To ask the Secretary of State for Northern Ireland what proposals he has received from the disposal of slag produced by the proposed incinerator at Maydown, Londonderry.

Mr. Needham

None. Such details are not yet available and can be provided only if and when Du Pont (U K) Ltd. submits a planning application and accompanying environmental statement for a toxic waste incinerator at its Maydown site.