The results to date indicate that the solar sludge drying process is extremely effective at both stabilising the biosolids and dramatically reducing the volume and mass of the material to be transported and reused. Since the installation of the solar sludge dryer, CabWater has estimated that it will have a cost saving of in excess of 50%. In real tetms, it is expected that the solar sludge process will remove a minimum of 3,300kg of water from the fresh biosolids and will save CabWater approximately $80,000 to $100,000 in biosolids disposal costs based on curtent prices. In addition to these savings, the biosolids product collected at the end of the process will have a number of options for beneficial use and who knows, in the future the dried product may even become a saleable commodity. B.E.S.T.P. treatment plant staff have already noticed that the stuff makes excellent lawn fertiliser!!
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