Brewers’ hops could be used to clean up the ‘brown soup’ of Berlin’s River Spree
Brewers’ hops could be used to filter out iron particles from Germany’s River Spree that have run into the water from open-cast coal mines The River Spree is turned brown by run off of iron compounds and heavy metals Researchers hope to create ‘filter bags’ made using by-products from brewing These bags would hang in … Read more