Most of sewage waste is released in to natural water bodies, giving rise to numerous health and environmental issues. Sewage treatment is the process of eliminating impurities from industries wastewater, containing mainly household sewage from human activities such as washing, cleaning, toilets, baths, showers, kitchens, sinks, etc. Urbanization has further escalated the load and expenses associated with the maintenance of sewer networks. Physical, chemical, and biological procedures are employed to eliminate impurities and generate treated wastewater suitable for environmentally safe disposal.
What is a wastewater treatment system?
A wastewater treatment system is a system made up of several individual technologies that address your specific wastewater treatment needs.
Treating wastewater is rarely a static process, and a wastewater treatment system that is engineered to accommodate fluctuations in treatment needs will go a long way in avoiding costly replacements/upgrades down the line.
An efficient and well-designed wastewater treatment system should be able to handle:
1. Process variations in contamination and flow
2. Variations in water chemistry needs and required chemical volumes adjustments
3. Possible changes in water effluent requirements
What is a Sewage Treatment Plant?
A sewage treatment plant, also called a wastewater treatment plant, is a facility where a person’s wastewater from their toilets, sinks, and tubs is cleaned. They are an integral part of the sanitation process to ensure the health and safety of everyone in a community.
Most of the time, sewage treatment plants manage the entirety of the wastewater generated by residences and businesses in a specific locale. However, it not unusual for these facilities to handle the storm water from the sewage system.
Raw sewage is processed within the plant, undergoing treatment through various machines and processes. During the treatment process, the plant aims to eliminate a substantial number of bacteria and contaminants from the water before it is reintroduced into an ocean or lake.
Importance of a functional sewage treatment plant
All human waste needs to go somewhere, and while this typically involves solid waste and food remains, it also encompasses wastewater originating from kitchens and bathrooms. Most of the time, humans release their water waste by returning it to rivers or the ocean.However, if they don’t treat the waste, they introduce contaminated water back into our water sources, which can harm wildlife, the ecosystem, and even humans.
Aside from hurting the wildlife, the solids in the water undergo a natural decomposition process. As solid materials break down, they deplete the oxygen in the surroundings.This can be very dangerous as a lack of oxygen in the water can have a profound impact on the underwater plants and wildlife, which are essential for sustaining our ecosystems.
So, a sewage treatment plant serves a valuable purpose. These plants are responsible for managing the entire wastewater within a specific locality, ensuring that the reintroduction of treated wastewater into oceans and riversafter it has been properly cleaned and treated to remove any solid particles and contaminants.
Why sewage treatment plants are required for industries
Water plays a pivotal role in the existence of all,serving as a fundamental necessity only for living things but also for non-living things. Our industrial operations utilize large quantities of water on a daily basis for manufacturing and various processes. Have you ever wondered what happens to the discharged from domestic or heavy industry sewage? Mostly, it becomes detrimental to the surroundings, rivers, and the ecosystem as industrial water often harbors a substantial concentration of harmful chemicals, posing a threat to the environment. However, this water can be repurposed following proper treatment. Numerous industrial water treatment facilities exist to assist industries in recycling treated wastewater for reuse.
Every day, substantial volumes of water are wasted, originating from either industrial processes or household sewage. Whether consciously or inadvertently, individuals often overlook the significance of wastewater treatment.It has a direct and indirect impact on people, plants, and animals inhabiting the nearby region, ultimately influencing the overall environment.The reclaimed water, following the treatment process, offers versatility in its potential applications.For example, the water treatment facility renders water both reusable and fit for human consumption. Furthermore, industries have the opportunity to recycle treated water for production purposes, yielding economic advantages.
So, we will understand how industrial water treatment system helps to save thousands of litter water every day.
The 3 stages of treating sewage
Regardless of the sewage treatment plant's specific design, the purification of raw sewage commonly occurs in three sequential phases. Although minor deviations might exist between different plants, the sewage treatment process is generally carried out through these three stages:
This is the first stage of treating sewage. This is typically done by letting the sewage sit in a tank for some time. When this happens, the solid particles settle at the bottom of the tank. Subsequently, these particles are separated, and the sewage advances to the second stage of the treatment process.
With that said, most plants install a mechanical scraper into the collection tanks. That way, it can capture more solid particles and pollutants in the sewage.
The primary treatment of sewage isn’t a deep treatment. This occurs in the second phase. In this stage, the facility employs biofiltration, aeration, and oxidation ponds for sewage treatment. This facilitates the natural degradation of biological compounds in the wastewater, resulting in a significantly safer effluent for release into the water.
This is the last phase in the process and is used to treat the water and help it reach industrial standards or the regulations set by the local sewage treatment plant for releasing effluent into the water. In numerous sewage treatment facilities, this stage encompasses the elimination of pathogens from the water, ensuring its safety for drinking purposes.