What are the operational costs of the ETP and STP System?

Sewage Treatment Plant

A specialised facility called a Sewage Treatment Plant (STPs) is made to efficiently handle and process sewage or wastewater from institutional, commercial, and residential sources. Its main job is to clean up the sewage to get rid of impurities, pollutants, and dangerous microbes so the water is safe to reuse or release back into the environment.

  • An STP's treatment procedure typically consists of several steps. First, screening is used to remove large things from the sewage, then grit chambers are used to remove heavier pollutants. The sewage next goes into primary treatment sedimentation tanks, where solids settle out and scum and muck are removed.
  • After the first treatment, secondary treatment takes place, usually with the help of microorganisms that break down organic materials through biological processes. This stage aids in the further reduction of contaminants found in wastewater. Tertiary treatment, which uses sophisticated filtration and disinfection techniques, is an optional procedure that may be used to guarantee better purification standards.
  • By reducing the spread of waterborne illnesses, eliminating water pollution, and protecting natural water resources, STPs are essential to environmental protection. These plants produce treated water that can be recycled for various non-potable uses or safely released into bodies of water, supporting sustainable water management techniques.

Effluent Treatment Plant

A specialised facility called an Effluent Treatment Plants (ETPs) is used to treat industrial wastes, or effluents, produced by various industrial operations. Its purpose is to eliminate pollutants, chemicals, and contaminants found in industrial effluents prior to their safe disposal or release into the environment.

  • Different treatment procedures are used in ETPs according to the particular contaminants found in industrial wastewater. Treatment techniques that fall under this category could be chemical, biological, or physical. Initially, in order to remove bigger particles and solids, effluents go through primary treatment, which includes screening and sedimentation.

Following this, chemical processes such as flocculation and coagulation help to separate and neutralize contaminants. Utilizing microorganisms, biological treatments can also be used to break down organic materials. To guarantee that strict requirements for water quality are fulfilled, sophisticated treatment techniques like membrane filtration or disinfection using UV or ozone technologies may be used. By guaranteeing that industrial wastewater satisfies regulatory requirements, avoiding the polluting of natural water bodies, and encouraging sustainable industrial operations, ETPs play a crucial role in environmental protection.

Operating Cost of the Wastewater Treatment Plant

An ETP's and an STP's operational costs can differ greatly depending on a number of variables, including the size of the plant, its treatment capacity, the technology employed, energy consumption, labour costs, upkeep needs, and the particulars of the wastewater being treated. Nonetheless, the following is a broad summary of the variables affecting running costs for both kinds of treatment plants:

ETP Operational Costs:

Chemicals: The use of chemicals such as coagulants, flocculants, and pH adjusters can have a substantial impact on operating expenses, contingent upon the treatment techniques utilized.

Energy Consumption: Pumps, aeration systems, mixers, and other equipment used in treatment procedures require electricity to run, which raises operating costs.

Maintenance: A significant amount of the operating budget may go for upkeep including etp treatment cost per kl replacement and repairs of equipment on a regular basis.

Labour Costs: The effective running of an ETP necessitates the presence of skilled operators and maintenance personnel, which raises operating costs.

Sludge Disposal: Managing or discarding the processed sludge produced during the process raises operating expenses.

Compliance and Monitoring: Operational expenses also take into account costs for laboratory testing, regulatory requirements, and compliance monitoring.

STP Operational Costs:

Energy Consumption: Pumps, aeration systems, and other equipment in STPs, like in ETPs, require energy, which raises operating costs.

Chemicals: The use of chemicals for tertiary treatment in some advanced treatment methods in STPs may have an impact on operational expenses.

Maintenance: The cost of operating a business is influenced by the need for routine machinery and component replacement, repairs, and maintenance.

Labour Costs: The operation and maintenance of plants require skilled workers, which has an effect on operating budgets.

Sludge Handling: STPs produce sludge, which raises operating expenses because it needs to be disposed of or treated further.

Compliance and Monitoring: STPs incur expenses for testing, regulatory standard compliance, and compliance monitoring, just like ETPs do.


Located in Noida, our company, Trity Environ Solution, manufactures many treatment equipments. In the treatment plant manufacturing sector, our company is the leader. Manufacturing industrial and commercial RO plants, sewage treatment plants, water softener plants, and effluent treatment plants are our areas of expertise. Because our RO systems use the newest technologies available, they are the best. With the greatest technology and years of manufacturing experience, we have built the best treatment plants. In any event, if you would like to set up a treatment plant or a RO system for your needs, please contact us by phone at +91-9821030072 or by email at enquiry@trityenviro.com.

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