What is the process of the ETP Plant?
The treatment process of the Effluent Treatment Plant includes the removal of suspended particles, dissolved organic matter, and the handling of sludge for disposal. Different processes involved are -
- Equalization - The equalization tank balances the raw effluent from various processing units. An existing mixed effluent tank collects wastewater and pumped to an existing aeration tank, which also functions as an equalization tank. The floating aerator is provided to homogenize the effluent before it is pumped to the neutralization tank for treatment.
- pH Control - The pH value of effluent should be between 5.5 and 9.0, according to the Bureau of Indian Standards (BIS) .PH neutralization is used to modify the pH of the wastewater. For waste that is acidic bases are used to modify the pH of a solution. In the case of alkali waste acids are used to modify the pH of a solution.
- Coagulation - Coagulation is a technique in which liquid aluminum sulphate is added to untreated water which causes tiny dirt particles to stick together after mixing. That collection of particles combines to generate larger, heavier particles which can be easily removed through settling and filtration.
- Sedimentation - Water travels slowly in this process, causing the heavy particles to settle at the bottom. The particles that gather at the bottom of a container are called Sludge.
- Filtration - Filtration is the process in which the water passes through a filter that removes particulates. The filters are made out of sand and gravel layers. Backwashing is required to clean these filters on a regular basis.
- Disinfection - Before entering the distribution system, water is disinfected. To disinfect and decontaminate water, chlorine is used.
- Sludge Drying - Solids through sedimentation get collected and settle down, and then transported to drying beds. When the sludge thickness reaches around 300 mm, the sludge charging should is stopped, and the bed is segregated to allow natural evaporation to dry it off. This takes approximately ten days.
Effluent treatment plant Are classified in the following
· Chemical treatment
· Biological treatment
· combination of chemical
· biological treatment and thermal treatment.
The basic principle of operation of ETP is physio-chemical treatment followed by smoothing Treatments like- Sand Filtration, Activated Charcoal Treatment (Adsorption), Ozonation (Chemical Oxidation), Ultra Filtration (UF), Reverse Osmosis (RO) and evaporation.
These effluent treatment plants save power and remove pollution effluent with economical performance and also meet the standards of government.
primarily, the design of effluent treatment plant is highly dependent on industry and site. The major points to be considered while designing effluent treatment plants are quality of site and wastewater. Untreated effluent quality and treated effluent quality are extremely taken into consideration in process of wastewater treatment plant design. Also now coming to selection treatment process, it involves consideration of other many factors, such as treatment efficiency, cost and infallibility.
Characteristic of wastewater is further prime aspect to be considered in terms of physical, chemical and biological characteristic. Size of effluent treatment plant ETP is turn on upon its flow of wastewater. Flow of wastewater should be evaluate correctly considering all possible reasons for directing any trouble in hydraulic computations, channels and pipes.
Many times, we require to construct equalization tank or pond to compensate during temporary heavy flow of water (e, g Rainfall, storm) to keep constant downstream treatment process. These equalization ponds also help to decrease toxicity of water.
Therefore, we can say that Crystal Green India’s ETP is one of the best solution to your industrial wastewater. And we the engineers of Crystal Green India’s assure the desired results with good quality and services.
