Sewage treatment
In the method of waste product treatment, waste product is digestible by enzymes secreted by microorganism. Solid organic matters area unit dampened into harmless, soluble substances and dioxide [33]. Liquids that result area unit disinfected to get rid of pathogens before being discharged into rivers or the ocean or are often used as liquid fertilizers. Digestible solids, acknowledged conjointly as sludge, is dried and used as plant food [34]. Aeriform byproducts like methane series are often utilised as biogas to fuel electrical generators. One advantage of microorganism digestion is that it reduces the majority and odor of waste product, therefore reducing area required for merchandising [35]. The most disadvantage of microorganism digestion in disposition is that it's a really slow method [36].