Very Impressed
Here is a slide show of the equipment I saw on my visit. Much of it was built in 2000 though some of the original equipment still is nursed along by the experienced staff.
This was only designed to filter solids from the sewage whilst now the new equipment actually treats the sewage using sophisticated techniques of sludge settlement, biological decomposition
(which simulates what happens in good top soil) and finally UV treatment that sterilises the water in a similar way to the treatment used in swimming pools and modern ponds.
The Nodding Donkey - imagination required !The staff are very dedicated to making sure that water of the highest quality is returned to the sea and the water quality is closely monitored and complies with rigorous externally monitored standards.
The only time when raw sewage escapes to the sea is when exceptionally high flows of sewage require treatment at the plant.
This is caused by very high rainfalls in the town. The sewage will thus be diluted by the rain anyway.
Thus swimming immediately after a long period of pouring rain is somewhat less desirable than in normal weather.
I can give no information regarding the Glaxo treated sewage which is treated in a separate and adjacent plant which I did not visit.
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