Two 14-metre high concrete #digesters have been installed at a #wastewater treatment centre in Manly in a $94 million upgrade, doubling the capacity of the plant to transform #sewage from one million Sydneysiders into #fertiliser used to grow the state’s crops, including wheat, oats and canola. #biosolids https://www.watoday.com.au/national/nsw/how-sewage-from-a-million-sydneysiders-helps-grow-the-wheat-we-eat-20230807-p5duij.html