Thursday 9 July 2009

RADIOACTIVE and HAZARDOUS

RADIOACTIVITY AND HAZARDOUS WASTE….. “ paint-pots and plutonium rods”… it ain’t.

The new economics of landfill tax for commercial and industrial waste, twice the volume of municipal, mean its too expensive to go to landfill,and so its coming to an incinerator near you.Now local areas will deal with local waste streams,whatever they are (central government presumption).

Rubber tyres, tarmac, contaminated earth from Victorian sites, asbestos demolition waste, car oils, industrial lubricants, waste, such as contaminated wood, glass and plastic . Electronic waste, such as fluorescent tubes, computer monitors and televisions, batteries (full of toxic heavy metals).Industrial waste, such as solvent, paint, varnish, oils, cleaning cloths, filters and soiled protective clothing .Residue from other waste treatments, such as ash from incinerators.
Agricultural pesticides and BSE contaminated cattle
In the UK, almost all radioactive waste comes from the nuclear power industry.
2% comes from defence uses (nuclear weapons and nuclear-powered submarines).
1% comes from medical and industrial uses of radioactive substances.

This is an example of the regulation

Special Form Certificate


Special form material means either:

- An indispersible solid radioactive material;
- A sealed capsule containing radioactive material that shall be so manufactured that it can be opened only by
destroying the capsule.


This means that if you have radioactive material which has a current Special Form certificate the packaging requirements
for transport are less onerous, often enabling a less expensive and more readily available transport package to be used.


If the material is no longer Special Form it may mean that “Type B” container is required which can in turn lead to a more complicated operation.


What is Best Practicable Means?


The Environment Agency requires users
of radioactive materials to demonstrate pro-actively that they are using the
Best Practicable Means to minimise the accumulation of radioactive waste and
to minimise the discharge of that waste to the environment, before users are
granted authorisations to accumulate and dispose of radioactive waste. There
is no definitive definition of BPM as each user's situation will be different.


What do we mean by 'Waste'?


Radioactive material has a wide range of
applications such as in Medicine to diagnose and treat patients, in Universities
and Research Companies for research and in Industry for supporting operational
processes.
Where waste radioactive material is secured within robust physical
containment, it's classed as a 'waste closed source'; if not, it is more generally
called 'radioactive waste'. The regulations governing the disposal of these
broad classes of material are different.


What do we mean by 'Closed Sources'?


Radioactive closed sources have
a wide range of applications such as in Medicine to diagnose and treat patients
and in Industry where they are found in instruments and gauges that determine
levels, volumes and thickness.
Where waste radioactive material is secured within
robust physical containment, it's classed as a 'waste closed source'; if not,
it is more generally called 'radioactive waste'. The regulations governing
the disposal of these broad classes of material are different.

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There is a real issue about “lost” closed sources, enough to give rise to European concern and regulation! Which is a comfort.

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