What is tertiary treatment?

Tertiary treatment is part of the cleaning process that must undergo waste water before it can be released into the environment. The process includes four or five phases. It is preliminary, primary, secondary and tertiary sewage treatment; Sometimes there is another step. There are several different types of tertiary treatment, all of which include improvement of waste quality to reduce its impact on the environment in which it is released. Waste water is generated by houses, businesses and public buildings such as schools and hospitals, and in some areas industrial plants. Waste water contains contaminants from all these places, as well as environmental waste from the soil, rainwater, animal waste and other waste that enters the rainwater systems.

The wastewater treatment process is lengthy. Thefase of preliminary treatment involves removing large pieces by filtering. During primary treatment, the water is inserted into large tanks and is left to settle to remove PElbe substances. Secondary treatment uses microorganisms to remove multiple contaminating solids. Furthermore, the waste water is undergoing tertiary cleaning and eventually may pass through the second process of settling to remove the remaining particles.

tertiary treatment, also referred to as waste water polishing, is performed to improve water quality. Most waste water plants use at least one tertiary water treatment process and some use two or more to decontamin the waste water. Tertiary processes include filtration, lagoon, nutrient removal and disinfection.

Filtration is a common method of tertiary treatment, either with sand or activated carbon used to filter waste water. Water passes a lot of sand or coal, allowing the particles in the water glue to the filter medium and remove it from the water. Lagooning is a method in which water is stored in ponds formed for some timeman. During this process of plants and invertebrate animals that live in water, they improve water quality by ingesting particles.

In some places, high levels of nutrients such as phosphorus and nitrogen must be removed before relaxing to the environment. This is important because if these nutrients are not removed from water, they may cause extensive algae growth, causing an ecosystem imbalance. Nutrient removal is carried out by bacteria present in waste water that converts nutrients into molds that can be removed from water.

The final tertiary process to be performed is disinfection, which is usually done with the addition of chlorine to the waste water. This process is used to kill microorganisms present in the water to reduce the environmental impact. Water chlorination is one of the most common forms of disinfection because it is a cheap and relatively simple process.