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.
Several methods are well known for the disinfection of drinking water. The used substances are chlorine gas, hypochlorite solution, hydrogen. peroxide, ozone, UV-rays. Ozone is used for the disinfection of swimming pools and not so often for. drinking water. The main disadvantage is the high toxicity.