Wednesday, January 6, 2010, 10:48a.m. -
• NewsPosted by Administrator
A number of people have contacted me, including representatives from the New Forest Friends of The Earth, concerned about the advertised proposals for processing radioactive waste at the Tradebe Incinerator, near Fawley.
I have received much more detailed information about the proposals and am happy to set out some easy to understand questions and answers, below.
I now accept that the risk to public health is quite low. However, I do not accept that it is good for the environment that this waste material is transported 350 miles from Cumbria into the New Forest District. I believe that national government have failed to ensure that proper facilities for processing this material have been provided on site, at Sellafield. I can think of no good reason why this isn’t so.
As a member of New Forest District Council and the New Forest National Park Authority I remain vigorously opposed to the plans, which also include burying the radio active material in a local landfill site.
If you agree with me, please write to The Senior Environmental Health Officer, New Forest District Council, Appletree Court, Lyndhurst, Hampshire, detailing your objection.
Nature of the waste:
1. What was the oil used for at the Sellafield and Windscale sites?
The oil consists of used lubrication, hydraulic and engine oils from a range of facilities on the Sellafield and Windscale sites.
2. What is its radioactive nature (e.g. alpha / beta / gamma?)
The oils have a range of radionuclides, dependent on the plant area in which the oil was used. The oils will be composed of both alpha & beta/gamma emitting nuclides, which would be within the acceptance criteria of the Tradebe incinerator.
Those oils that have been analysed are mostly only trace active, in the order of < 1Bq/g alpha and < 40 Bq/g beta. Each consignment of oil would be supported by detailed analytical data to confirm it is suitable for processing at the incinerator.
3. Is there any further relevant background on the waste oil (e.g. radioactive half-life if relevant?)
The Tradebe incinerator is already authorised under the Radioactive Substances Act 1993 (RSA93) to dispose of radioactive waste (e.g.
radioactive emissions to air) subject to strict limits and conditions that will ensure no harm to the public or the environment.
The emissions as a result of the treatment of oil from Sellafield and Windscale will fall within the limits and conditions already set. Should there be any breach of these limits and conditions then the Environment Agency would consider taking action against the incinerator operator.
Sellafield Ltd is proposing to send no more than 100 m3 per year, which the operator of the facility has confirmed they can accommodate. The maximum volume that can be accepted per consignment is 30m3, i.e. a maximum of 150 of 200 litre drums could be transported at any one time.
4. How much waste oil will be treated at the incinerator on a daily / weekly / monthly basis?
An average of one consignment of 40 drums of waste oil per month. A maximum of 100 m3 per year. 0.5% of the total liquids that are typically processed each month are radioactive.
5. Has any of the oil proposed to be sent to the Tradebe incinerator been stored, and if so for how long (months / years)?
The oil stored on site at Sellafield and Windscale is of varying ages.
It has been stored in safely contained compounds for an average of around 10 years.
6. How has the waste oil been treated up until now?
The waste is stored in a number of safely contained compounds on the Sellafield and Windscale sites. Some of the oil stocks have been pre-treated to separate waste oil from water. Over the last two years approximately 10% of the oil inventory has been sent for incineration overseas in Sweden.
7. How is 'low level' waste defined in technical terms?
Oils consigned to the Tradebe incinerator from the Sellafield and Windscale sites will be at the lowest end of the spectrum for Low Level Waste. Low Level Waste (LLW) is defined by Government Policy for the Long Term Management of Solid Low Level Radioactive Waste in the United Kingdom, published 26 March 2007 as 'radioactive waste having a radioactive content not exceeding four gigabecquerals per tonne (4 GBq/te or 4,000 Bq/g) of alpha and twelve gigabecquerals per tonne (12 GBq/te or 12,000 Bq/g) of beta/gamma activity.
8. Are there any other types of radioactive waste, similar in nature to this oil, that are already dealt with through incineration - e.g. hospital waste?
Yes, organic combustible liquid wastes (including laboratory chemicals), solvents etc. as well as solid combustible wastes from both nuclear licensed and non-nuclear (e.g. research establishments, hospitals) sites.
Sellafield Ltd will not be a large or the dominant producer of oils destined for the Tradebe incinerator. Most of the business for the facility comes from small producers and the non-nuclear sector.
There are a small number of RSA93 authorised incinerators in the UK which provide a disposal service for hospitals and research facilities, however these incinerators can only accept very small volumes of oil and do not have limits that would be capable of meeting the radiological properties of the Sellafield and Windscale oil, for instance on alpha emitting radionuclides.
Transport:
9. How will the waste be transported?
The waste will be contained in drums and transported by road in accordance with all relevant transportation requirements. Sellafield Ltd anticipates that fewer than 10 lorry trips per year will be needed.
10. How many miles will the waste travel - and what route will it take?
The waste will travel approximately 350 miles using motorways and appropriate 'A' roads.
11. What Health and Safety procedures will be in place during the journey?
Note: This is a question that should be considered / addressed by the HSE / Department of Transport.
However, for info - Materials will be appropriately packaged in accordance with the relevant legislation, ADR transport regulations, RADSAFE. Transportation will be undertaken by suitably trained and experienced hauliers.
12. What are the dangers to people and the environment if there is a leak?
The major environmental risk comes from the oil itself - e.g. pollution of ground or water courses - rather than that associated with radiation.
The impact on the public is thousands of times lower than that which arises from natural background radiation exposure, to which everyone is exposed on a daily basis.
13. How many additional lorry movements will there be on site?
There will be minimal additional lorry movements on site, waste oil will be moved by fork-lift/truck to a centralised location for packing onto transport lorries and movement of lorries to transfer material to Tradebe.
Treatment at the incinerator:
14. How will the waste be stored at the incinerator?
The waste will be stored in accordance with strict regulations laid down by the Environment Agency. The waste will remain in sealed UN approved containers that are stored prior to processing. These are stored in a secure locked compound and the site is subject to 24 hour surveillance.
Processing is planned to minimise the length of storage of these wastes on the Tradebe incinerator site.
15. What risk does incineration pose to the atmosphere in terms of discharge to air?
Discharges to air of volatile radionuclides have been assessed by the Health Protection Agency (HPA) on behalf of the Tradebe incinerator operator. The HPA assessment indicates that any radiation exposures of those living in proximity to the Tradebe incinerator will be low and well within the currently recognised radiation dose limits.
16. Can you confirm the ash following incineration will be radioactive? If so, how will this be managed / disposed of?
Some traces of radioactivity will remain in the ash but at concentrations below the limit set in the Tradebe incinerator authorisation (issued by the Environment Agency). This ash is disposed of to landfill. The safety of this practice, which occurs at any incinerator which processes radioactive wastes, has been verified by a number of independent assessments including reports commissioned by the Environment Agency.
17. How much radioactive/toxic waste has the Tradebe incinerator successfully disposed of in the past three years?
The incinerator has successfully processed about 66,000 tonnes of wastes over the past three years. Of this less than 1.6 percent (1,000 tonnes) was radioactive waste from a variety of sources.