... Dekker, Inc method uses biological properties, including the enzymes alkaline phosphatase, sulfatase, arginine deaminase, protease, invertase, and dehydrogenase, in combination with other soil ... of their protein-binding capacity and hence their ability to inhibit enzymes The cationic metals are noncompetitive inhibitors, which bind irreversibly with sulfydryl and carboxylate groups and ... contaminant load in the sludges investigated, and the enhancement to the sludge organic matter and nutrients stimulating microbial activity and urease synthesis Other studies, using less contaminated...