Sludge from City STP should not be used for fertilizer of food crops. only AA Biosolids should be used . with no heavy metals, pharmaceuticals and hormones.
Published by Eros Kaw, Biocleaner Inc. - Chief Tech Support
Sludge from City STP should not be used for fertilizer of food crops. only AA Biosolids should be used . with no heavy metals, pharmaceuticals and hormones.