The Guardian newspaper reported recently that the British museum is exhibiting part of a sewer-blocking fatberg that made headlines last year, weighing 130 tonnes, the equivalent of 11 double decker buses and stretching more than 250 meters, six meters longer than Tower Bridge. Said Vyki Sparkes, the curator of social and working history, “I don’t think you can get much lower than a fatberg … it reflects the dark side of ourselves”.
Fortunately, most of our sewage goes through very efficient sewage treatment works (STW’s) before the water is recycled to rivers and the sea. The STW extracts the organic material and some of that is recycled to land to grow crops (“biosolids” are really good fertilisers which add trace elements and improve the biology and disease resistance of the soil, thus reducing crop disease). The real bogey is the solid plastic which goes to landfill. Yet again, it is hard plastic which is causing intractable environmental problems.
Bill Butterworth, Land Research Ltd, February 2018