The Secret Science of Sewage

Explore one of the U.K.’s biggest sewage works, a hidden world rarely chosen to see.

Dr. George McGavin and Dr. Zoe Laughlin (How to Make...) explore one of the U.K.’s biggest sewage works, a hidden world one might rarely choose to see. Processing one billion liters of waste water that 1.7 million people flush each day means there is a lot of sewage to be treated.

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