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.
Treatment plants reduce pollutants in wastewater to a level nature can handle. Wastewater is used water. It includes substances such as human waste, food scraps, oils, soaps and chemicals. In homes, this includes water from sinks, showers, bathtubs, toilets, washing machines and dishwashers.