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transport cost savings. It is expected that construction complies with the approved budget limits. Therefore, since it is neces-sary to pump leachates from a site during a period of up to 60 years (after its closing), the economic advantages will be quite sig-nifcant.

Is there any benefcial byproduct that may be used in the future?

No, not at this plant. Nevertheless there could be opportunities for recovering some

The fnished plant where we can appreciate the concen-tric shape of the LTP

now trying to fnd solutions for this problem before the autumn season arrives.

Where does the treated water go?

Treated leachates are pumped into the lo-cal waste water treatment plants where they undergo another purifcation process before being sent to a brook that fows into the Ouse River.

What are the environmental advanta-ges of this plant?

Obviously, the greatest advantage is that it reduces our carbon footprint tremendously since we do not have to store the leachates for its transport by trucks to another plant. The environmental as well as the economic impact of this is considerable. Leacha-tes are pumped from Bletchley to the raw leachate containers before being collec-ted and sent to the treatment plant. This redounds in savings of 107000 kg/year in carbon emissions, equivalent to a total of 1,120 transfers by cistern trucks from Blet-chley to Calvert.

Are there signifcant savings thanks to this plant?

The construction of the plant is estimated at 2.5 million pounds sterling and this cost is amortized in 5 years thanks exclusively to

byproducts from the treatment plants in the future if these were to have any value in the market. Keep alert for any news!

What are the next steps?

Once we are satisfed with the commissio-ning phase, WRG will take control of the plant, which we expect will occur this sum-mer, and then we will be able to operate the plant. Paula Ivarez was recently appointed manager of the plant, reporting directly to Robin Tucker (senior Bletchley manager). Paula is very competent and knows this process better than anyone else. She has gained broad experience in her native re-gion in northern Spain. We will continue to provide support to the Bletchley team over the coming months.

Thanks, Patrick, now we know a bit more about the plant and its construction pro-cess. Now I’ll have to brush up on chemis-try and study the desnitrifcation process that Patrick described as unique.

I hope that the above dispels your doubts about the leachate treatment process and the Bletchley LTP. Many thanks to Patrick and Paula for their time and for sharing the details of the project with me.