Depending on the kind of effluent treatment plant different effluents require different treatments. Wastewater enters the effluent or sewage treatment facility and through many processing steps before being released into the environment.
Let’s understand what is effluent treatment!
It is possible to treat waste water and adhere to pollution board disposal guidelines by using an effluent treatment plant (WWTP).
An effluent treatment plant (WWTP) is a wastewater treatment process that is used to treat wastewater and meet pollution board disposal rules and regulations.
ETP plants treat pollutants such as organic matter, inorganic matter, heavy metals, oil and grease, suspended particles, and so on with wastewater treatment. For treatment, a batch procedure or a continuous flow process may be used. Wastewater treatment plants are classified into chemical treatment, biological treatment, a combination of chemical and biological treatment, and heat treatment.
Wastewater treatment is used in ETP plants to handle contaminants such suspended particles, oil and grease, heavy metals, organic and inorganic debris, and more. It is possible to treat using a batch technique or continuous flow process. Chemical treatment, biological treatment, a combination of chemical and biological treatment, and heat treatment are the different types of wastewater treatment facilities.
Industrial effluent treatment process:
The treatment of different effluents varies depending on the type of effluent. Before being discharged into the environment, wastewater enters the effluent or sewage treatment facility and is processed multiple times. The industrial wastewater treatment plant process includes the following phases:
A. The goal of preliminary treatment is to physically separate large pollutants. This level/process consists of the following:
- In a waste water treatment facility, screening is the first unit activity. A screen is a device with uniform apertures that is used to remove large floating solids.
- Sedimentation is a physical water treatment method that uses gravity to remove suspended materials from water.
- Grit Chamber: The wastewater that flows through the grit chamber removes dense inorganic materials like gravel, metal shards, and sand that have made their way into the sewers.
- Clarifiers are tanks that are mechanically designed to continuously remove sediments accumulated by sedimentation prior to biological treatment.
B. Primary treatment:
Its goal is to remove items that float and settle, such as suspended solids and organic waste. This therapy employs both physical and chemical approaches. It contains the following items:
- Flocculation is a physical process that does not involve the neutralization of charges. It entails aggregating destabilized particles into large aggregates that can be easily removed from water.
- Coagulation is the process of introducing coagulants into a liquid in order to rapidly settle minute solid particles into a larger bulk. It enables particle removal through sedimentation and filtration.
- Neutralization: The main goal of this procedure is to keep the pH in the range of 6-9 so that the various processing units in the ETP system can function properly.
- Primary clarifiers: These are used to reduce the velocity of the water so that organic particles sink to the tank’s bottom and contain equipment for removing floating solids and greases from the surface.
C. Secondary or biological treatment:
The goal of this treatment is to further treat the primary treatment effluent in order to eliminate suspended particles and residual organics. This stage involves biological and chemical mechanisms.
- To clean industrial waste water, the activated sludge process employs air and a biological floc composed of bacteria.
- Aerated Lagoons: A waste water treatment pond with artificial aeration to improve biological oxidation.
- Trickling filters, also known as sprinkling filters, are widely used in the biological treatment of domestic waste water and industrial waste water.
D. Tertiary/advanced/disinfection treatment:
The goal of tertiary treatment is to provide a final treatment step to improve effluent quality before it is reused, recycled, or released into the environment.
- Following primary and secondary treatment, chemical coagulation and sedimentation are used to promote particle removal from effluent.
- Filtration: To ensure high quality water, the cleared wastewater is routed to a nearby filtration facility, which consists of massive filter blocks.
- Pressure is used to drive effluent through a membrane that holds impurities on one side while allowing clean water to pass through on the other in reverse osmosis.
- UV Disinfection: It is thought to be an excellent industrial waste water disinfectant. It leaves no residual disinfection in the water because it maintains water purity. It produces no byproducts of disinfection.
Importance of ETP
Energy is conserved, trash is cleaned up using economical operations, and regulatory requirements are met by effluent treatment facilities.
Fundamentally, the design of an effluent treatment plant is heavily influenced by the industry and location. Location and wastewater characteristics should be taken into consideration when designing effluent treatment plants. The quality of treated and untreated effluent is strongly taken into account while building a wastewater treatment facility. When choosing a course of treatment, a number of additional factors must be taken into consideration, including the effectiveness, cost, and dependability of the course of treatment.
What do we offer?
If you have any questions about wastewater treatment plants or would like to discuss your specific needs, please contact the Netsol Water team right away. Our team is an expert in water treatment and can help you tailor a solution to your specific requirements.
We collaborate with our clients to design a customized water treatment solution that meets your specific requirements, as well as an ongoing service plan to completely or partially maintain your system.
For further information, contact us at +91 9650608473 or email at enquiry@netsolwater.com.
