Metabolic Pathways. 1  Although we can recognize a substrate and product. of individual enzymatic reactions metabolic. 2  Pathways can be linear, branched, cyclic or even. spiral. 3  Pathway activity is controlled in three ways.  Metabolites and enzymes may be localized in. different parts of the cell called metabolic.
Products often purchased by wastewater treatment plants include: 1  Alum or aluminum sulfate. 2  Sodium aluminate. 3  Polyaluminum Chloride.  Polymer 1  (dewatering) Sodium hydroxide.  Ferric 1  Chloride. Ferrous Chloride.
1 A disinfectant, such as chlorine, is usually added to the wastewater before it leaves the treatment plant. 2  The disinfectant kills disease-causing organisms in the water. 3  After treatment, the water can be returned to nearby waterways. 4  It can also be used on land for agriculture and other purposes.