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Enzymes have a very different effect on fat compared with bacteria, as they simply break up and liquefy the fat, oil and grease in wastewater without actually digesting it. Smaller molecules of fat are created that initially pass down the drain rather nicely, however these smaller molecules eventually congeal back together later down the water
There are many methods to treat wastewater and sewage from the use of bacteria, enzymes and chemicals. The most common processes of wastewater and sewage treatment involves screening and clarification to remove solids, aerobic, suspended growth, activated sludge, reduction of organic pollutants and chlorine disinfection to minimize pathogens.