Effluent Treatment Plant

Get free quotation

Effluent Treatment Plant (ETP)

What is a Effluent Treatment Plant (ETP)?

An Effluent Treatment Plant (ETP) is a facility that removes wastewater from an industrial facility. The by-product of a process is called industrial wastewater. Once treated, the water can be released back into a sanitary sewer system or surface water. It is a vital step in the treatment process of industrial wastewater, and many industries today are choosing to use an ETP. There are many benefits to this type of facility, including the reuse of treated waste and the resulting clean water.

Our Awesome Services

Hydroflux Engineering Pvt Ltd is a New Delhi and Mumbai based Wastewater treatment company having more than ten years of experiance. We manufacture a wide range of Water and Wastewater treatment systems like ETP Plant, CETP Plant, ZLD Plant.

Low Foot Print

Low footprint and recyclable quality effluent, although they are high energy-intensive systems.

High Speed Processing

Pass strict govt test performance with continuous nitrification & denitrification process.

Inexpensive Maintenance

STPs need frequent monitoring but it would have to be desludged and serviced at least once a year.

Expels Harmful

Treated correctly and then re-used/re-cycled for various uses that do not need potable quality.

Optimum Waste Utilization

STP is the process of removing contaminants from wastewater, primarily from household sewage.

Energy Proficient

Enhancing the Energy Efficiency of Wastewater Treatment Plants through latest technology.

Happy Clients
Team workers

Our Services

Hydroflux Engineering Pvt Ltd is a New Delhi and Mumbai based Wastewater treatment company having more than ten years of experiance. We manufacture a wide range of Water and Wastewater treatment systems like ETP, STP, DM, RO, and Water Softener Plants.

Frequently Asked Questions (FAQ)

Hydroflux Engineering Pvt Ltd is the best STP plant manufacturer in Delhi and Mumbai. To know frequently asked questions (FAQ) related STP plant and its activity, please read this section or contact us on the given number or email.

An effluent treatment plant removes a wide variety of contaminants from wastewater. Microbial pathogens can spread the most common pollutants to be removed. Bacteria and viruses can also be found in wastewater. There are two main types of wastewater treatment plants: anaerobic and aerobic. Anaerobic effluent treatment plants are the most commonly used plant for domestic wastewater.

The wastewater treatment process has four levels. The primary level of the treatment process involves removing biodegradable organic materials, suspended matter, and dissolved materials. The tertiary level is where wastewater is cleaned of chemicals. The final step of the treatment process is called secondary sewage treatment, which involves removing any remaining organic materials and biodegradable materials. In a multi-level system, the wastewater is treated to a high level of purity to ensure that it is safe for use in the environment.

The wastewater treatment process aims to remove all the major pollutants from the wastewater. The pollutants present in effluent include solid materials, dissolved organic matter, and biological organisms. In the case of raw effluent, a treatment facility can remove them through a conceptual approach. Depending on the nature of the company, the effluent may contain different types of wastes.

An effluent treatment plant is a wastewater treatment facility that treats the wastewater. There are several stages of the process, from primary to secondary, and each one has its unique benefits and drawbacks. The first is the primary treatment. The first step is screening the wastewater to remove large organic material and prevent damage to the components of the system. Typically, screening begins with coarse screens with a six-millimeter spacing and progresses to finer screeners. Occasionally, this process is combined with maceration, which involves shredding raw sewage to a very small size.

The next stage, sedimentation, is used to remove suspended solids and organic matter from the wastewater. This process is much more complex than the previous two but requires the least disturbance possible. The suspended matter sinks to the bottom of the tank, becoming biosolids. The biosolids that remain are removed for proper disposal. The most efficient treatment plants use sludge as a fertilizer.

The process can also use physical filters. The primary filter, known as the clarifier, removes suspended solids. Afterward, the wastewater passes through the next phase of treatment, the filtration plant, and it contains filters that remove minute particles. Finally, the final phase of the process involves disinfection. The disinfectant is then added to the wastewater to make it safe for human consumption.

What is the ETP plant? The process of treating wastewater has four levels. The preliminary level involves physical processes to remove inorganic substances, and the final level is a chemical and biological treatment to get rid of organic material. An ETP plant treats wastewater from different industrial sectors. Its process is divided into three stages: pre-treatment, primary, and secondary. The final stage removes pollutants and sediments.

When designing an ETP, soil characteristics are taken into account. The depth of the rock layer and topography are considered. The amount of grease, oil, and suspended solids is a factor in determining the pollution level. Organic and inorganic constituents determine the composition of the wastewater in liquids and gases, and these chemicals are used to treat the wastewater. In some cases, an ETP can be automated, although a trained staff is required.

The process of the ETP includes different levels. The primary level treats the wastewater by separating it from sludge. The second level reduces the biological population. The third level, or tertiary treatment, treats the wastewater to remove toxic materials and non-toxic materials. Many companies use Effluent Treatment Plants. They are used to treat the wastewater and reduce the demand for freshwater. The process involves the removal of hazardous and non-toxic materials.

An ETP Plant is the most important part of any wastewater treatment facility. It works on many levels and involves various physical, chemical, biological, and membrane processes. The treatment process of ETPs can reduce the amount of contaminants and toxic materials in the wastewater. The main purposes of ETPs are to clean up the wastewater and prevent pollution. These facilities also remove pollutants from wastewater, which are typically produced by different industrial sectors.

An Effluent Treatment Plant is a facility for treating polluted or contaminated water. It removes harmful contaminants that can harm humans and the environment. These include inorganic and organic matter, as well as suspended solids. A CETP can use either a batch or continuous process. During the treatment process, it uses physical and chemical processes. In addition to physical and chemical processes, ETPs may also use polishing treatments to improve the water's odour and odor.

The Effluent Treatment Plant treats wastewater that is contaminated or polluted. The process is performed to remove contaminants like chemicals, heavy metals, and suspended solids. The ETP can use a batch process or a continuous flow process, and it uses a combination of processes to clean the wastewater. The processes are also known as bioreactors or bacterial treatment beds. These facilities are necessary for certain industries that need to control pollution.

The wastewater treatment process begins with screening to remove large solids, which could damage the other components of the system. Next, it moves through a screen to remove the remaining organic matter. Coarse screens with six-millimeter spacing are used to remove large solids, followed by finer screens. Sometimes, screening is combined with maceration, which involves shredding raw sewage and crushing the particles into very small particles.

The next step in wastewater treatment is the biological process. This process removes organic matter and breaks it down. The waste is then pumped into digesters, large tanks with aeration systems. The process also reduces odors and disease-causing organisms. The wastewater then passes to the humus tank, further processed and often used as fertilizer. To prevent contamination, the waste must undergo a variety of processes, including aeration.

Advanced sewage treatment usually consists of three stages: disinfection, biological nutrient removal, and final polishing processes. The tertiary stage is the last step and aims to improve the quality of the effluent before it is discharged into the environment. Some treatment plants use more than one tertiary-treatment process. The final step, disinfection, is always performed.

The wastewater treatment process removes solids, grease, and other pollutants that cause problems for plants and animals. The effluent from a plant or industrial process can be used for irrigation. In some areas, effluent is recycled in other ways. In some areas, the water is treated and reused. However, the wastewater must be treated for further use in some areas. If a plant is not installed, the wastewater must be disposed of in a landfill.

A typical wastewater treatment plant controls pollution and removes hazardous substances from wastewater. Although pathogen removal is technically possible, it is not usually practical and not cost-effective. In such locations, higher-grade effluent may be needed. If you want to reuse your wastewater for agricultural purposes, you must consider the pathogens and other pollutants in the water before considering the cost and technology. Here are some reasons why an effluent treatment plant is necessary.

To reduce the risk of pollution, a wastewater treatment plant should have a sludge trap and a sediment trap. This traps suspended solids and other pollutants and eliminate wastewater's smell and odor. The effluent discharge from a treatment plant can be returned to the environment in agriculture. Some countries do not treat wastewater, and in those cases, they send the treated water into the environment.

Several kinds of wastewater treatment methods can be used in the textile industry. The most common and effective are the centrifugal and horizontal flow sedimentation processes. These processes can also be done using biological processes. The process of sedimentation is highly efficient in removing suspended matter, and this treatment process can also remove high settable solids. Centrifugal and horizontal flow sedimentation tanks are the most common. In addition to this, centrifugal pumps are often used to remove settled sludge. In addition, rotating agitators are sometimes used to stir the mixture.

The chemical treatment method is also useful, but it is not 100 percent effective, and it requires a lot of energy and oxidizers. There are alternative methods for 100% removal, such as biological and chemical oxidation. Biological treatment techniques are used as pretreatments, while chemical oxidation is used posttreatment. These methods are eco-friendly and reduce energy and operating costs.

The effluent from the textile industry is heavily polluted, and it contains various chemicals that can harm water bodies. Azo dyes and chlorine, widely used in the industry, are among the major pollutants. These compounds are not only harmful to humans, but they also affect aquatic life and their photosynthetic abilities. For this reason, textile wastewater needs to be treated before it is discharged into water bodies.

The Effluent Treatment Plant (ETP) is a multi-stage process to reduce the levels of BOD and COD in wastewater. The wastewater is filtered through three processes: primary treatment that separates sludge from liquid, the secondary treatment that removes biological populations, and tertiary treatment, which removes harmful chemicals. Many companies use ETPs to clean their wastewater. These plants treat pollutants, as well as non-toxic materials, before sending it to the next step.

The primary treatment is a simple separation of the sludge from the liquid, and secondary treatment is a more thorough process that removes biological matter and lowers the bacterial population. The tertiary treatment uses a combination of biological and chemical processes to remove the harmful microbiological contaminants from wastewater completely. The basic steps of an ETP plant are to separate the waste and reduce it to a usable form.

The third step involves treating the wastewater using various chemicals. The first stage of ETP treatment is known as primary treatment. In this process, sludge is separated from the liquid and treated. In the second stage, residual suspended solids are removed, and the bacterial population is reduced. The final step of an ETP plant is tertiary treatment, a combination of biological and chemical processes that remove the harmful microbiological contaminants from wastewater.

The pH of effluent, or water, is an important measure of how clean the water is. High pH levels may indicate that the wastewater is too acidic or alkaline. However, low pH levels are often due to human activities such as using acidic cleaners or drinking excessive amounts of acidic beverages. When assessing effluent quality, the pH range should be between 6.0 and 7.8.

Biological activity in wastewater treatment is dependent on the pH range. The ideal range is between 7.0 and 7.4. The optimal pH range for a biological process is a near-neutral value. In addition, the best biological processes function under steady-state conditions, and stable environments promote the growth and function of microorganisms. A suitable pH range enhances performance and expands the capacity of a wastewater treatment facility.

The pH range of effluent after treatment is critical to the efficiency of biological processes. It is important to keep wastewater within this pH range because the alkalinity of wastewater can increase or decrease the activity of microorganisms. A 6.5-6.5 pH range is ideal for drinking water. For wastewater, the range should be between 7.5 and 8.5. For plants that produce raw waste, a pH level of approximately 7 is optimal.

Acidification of effluent water has become increasingly important in the environmental field, as it helps reduce the biological oxygen demand and the chemical oxygen demand of the environment. The pH of effluent water is determined by adding a substance called a base, such as sodium carbonate or potassium bicarbonate, to it. Another common method of increasing the pH of wastewater is to use hydrated lime, or CaO quicklime, in the treatment process. The calcium hydroxide in the waste will bind with metal ions, causing the formation of a solid that can be removed through filtering and settling.

This type of treatment requires a point-of-entry system to inject an acetic acid solution into the high-pH wastewater. Alternatively, you can use citric or alum acid, which is more expensive. To achieve the desired pH level, the feed rate of the acetic acid solution needs to be adjusted so that it reaches a pH value close to that of the tap water. Monitoring the feed rate and maintaining the system is necessary to achieve the optimal pH level. This is done through a chemical feed pump, which must be refilled. Users should wear protective clothing and gloves while handling the acid solution.

There are several ways to increase the pH of the wastewater. For example, acid injection is a point-of-entry system in which a chemical feed pump will inject an acetic acid solution into the high-pH water. A more expensive alternative is to use sulfuric acid, and Hydrochloric acid is a weaker solution and is recommended for untreated wastewater. The chemical feed pump must be maintained and refilled, and users must wear protective clothing when handling the acid solution.

Alum is a chemical compound commonly used in water treatment plants. It is a non-toxic substance that clarifies water and decreases phosphorus levels in lakes. It works by clumping microscopic impurities into particles that can be removed through filtering. It is used in the ETP plant as a PH enhancer and dewatering agent. It is also used in baking powders and pickling solutions.

Alum is an excellent primary coagulant, and it removes turbidity in raw water and neutralizes a charge in the water. It is widely used in municipal wastewater treatment plants and used in industrial wastewater treatment. It is a very inexpensive and readily available material. However, it must be used within a specific pH range, as it is ineffective if the water is too acidic.

Aluminum sulfate is an effective coagulant. It is a versatile coagulant with high efficiency, and it is also an effective sludge dewatering agent. Its toxicity is low and leaves no residual color. It is available in food-grade quality and can be diluted up to 48% by weight. It should be handled and stored according to the guidelines set by the manufacturer and local laws.

The pH of wastewater is typically low. However, if it is high, it can be neutralized by adding sodium hydroxide, lime, magnesium hydroxide, calcium hydroxide, or carbon dioxide. Often, this process is done by batch treatment, but continuous flow processes may be necessary for larger flows. The exact method and chemicals used to neutralize pH depend on the type of treatment process and the volume of the tank.

The pH of wastewater is a measurement of the potential hydrogen in a solution: the lower the pH, the more acidic the water. The pH scale is based on the negative base-ten logarithm of hydrogen ion concentration. In general, the higher the pH, the more acidic the water is. Copper is one of the most common causes of high pH in wastewater effluent, but other factors can increase or decrease the pH.

The pH of wastewater is the measure of the concentration of hydrogen ions in a solution. When the concentration of hydrogen ions increases, the water is alkaline. The higher the pH, the more acidic the water is. As a result, the higher the pH, the more alkaline the water is. As a result, a higher pH is good for biological activity and wastewater treatment.

Many factors can cause a lower pH in wastewater effluent. Some of the most common culprits are acidic cleaning products, overuse of acidic beverages, and insufficient buffering in the effluent treatment process. But there are also other causes that contribute to a low pH, and here are a few of them. Below are some potential causes of low pH in wastewater and their solutions.

Metal ions can increase the solubility of heavy metals, which can cause serious problems for aquatic life. Increased hydrogen ions release metal cations into the water, causing them to be leached from sediment, and this results in higher concentrations and increased toxicity. Even low concentrations of aluminum can harm rainbow trout, as it limits their growth and increases mortality rates. Other pollutants, such as aluminum, can also affect the health of rainbow trout.

The most common culprits for low pH in wastewater are detergents and caustic soda. These are among the major contributors to waste discharge, and they can cause severe environmental impacts, and they should be treated accordingly. Publicly owned treatment facilities limit the pH of wastewater effluent to five to 8.5, though this limit is not enforced everywhere. These substances can also be harmful to waterways if used in large quantities, so limiting them is important.

Coagulation is a process that stabilizes particles by reducing the repelling force between them. In contrast, flocculation is a mixing method that helps particles form large agglomerates. Both processes can be helpful in separating different types of substances. Both types of separation processes use reagents to help achieve the desired result, and these reagents are generally organic or mineral-based.

Coagulation involves adding a coagulant to the water to facilitate the clotting of suspended particles. Flocculation involves using an organic polymer to reinforce the bonds between the suspended particles and the coagulant. This process aims to create a stable state of particles that can be easily filtered. The two processes differ in how they achieve their objectives.

Coagulation involves the coming together of colloidal particles, causing them to float or settle on the surface. It is generally brought about by the addition of electrolytes, such as sodium chloride or potassium chloride, which neutralize oppositely charged ions. As the charges accumulate, the coagulated particles form large aggregates. Flocculation and coagulation processes are two different types of separation, each with a distinct purpose.

The difference between coagulation and flocculate occurs when different particle types attach. When the pH level changes, a polymer is added to bind the particles together. This process creates a large clump, called a floc, and it can be separated after the clumps have formed. In addition to being a separation process, coagulation can also help remove sediments and other solid materials.

There are a few reasons why aeration tanks are used. First, they are necessary to maintain the quality of treated effluent. The aeration process also helps prevent bacterial growth, and it also improves the nutrient concentration in the aeration tank. Second, urea and DAP are good for the environment, and they are both natural resources.

Aeration processes help to maintain the correct pH for nitrification. An optimum pH range is between 7.2 and 8.0. The residual alkalinity is around 70-80 mg/L when the nitrification process is completed. The pH of the aeration tank is often set between 6.5 and 7.0. In addition, the acidity of wastewater is a factor. The acidity of nitrification is lowered when the aeration process is interrupted.

If you were to add urea to the aeration tank, it would be added to the wastewater, allowing the nitrification process to continue. In addition, the aeration tank would need to be kept at a pH of 7.2 or greater to maintain the nitrification rate. Additionally, urea is very effective in treating blackwater and faecal sludge, and it has a high concentration of NH4-N, which is good for nitrification.

Adding urea to aeration tanks has a number of advantages. It provides a stable environment for the aerobic microbes to thrive, and it allows for a greater treatment capacity. Secondly, urea is better for the environment of nitrate. Finally, it is safe for aquatic life to have a stable pH level in the aeration tank.

BOD and COD are two terms used to measure the amount of organic matter in water. The former measures the amount of oxygen needed by microbes to break down the material, while the latter measures the oxygen consumed by unit mass. Both have their respective uses and understanding what each one does and why helps to know the difference between them. In this article, we'll compare their differences and how they differ from each other.

BOD stands for chemical oxygen demand, and it is a measure of the amount of oxygen a solution requires to decompose organic matter. The COD test is often conducted with natural water and wastewater, and the samples are incubated with boiling sulfuric acid or potassium dichromate. Both BOD and COD are correlated, but the COD test is used more for municipal water treatment purposes, and they can be a useful tool when comparing municipal water quality.

The BOD test measures the amount of oxygen consumed by aerobic organisms, and it is calculated using a five-day incubation period at 20 degC. The COD test is done by incubating the water sample with a strong oxidant, boiling sulphuric acid. The difference between BOD and COD tests is not significant. For most purposes, COD is superior to BOD, and it is better to use COD in drinking water than the former.


We Implemented ETP, STP, DM, RO, and Water Softener Plants to serve Various Industrial requirements.

ETP, STP, DM, RO, and Water Softener Plants

Hydroflux Engineering Pvt Ltd is a reputed organisation and associated with many other reputable organisations to maintain and deliver quality Wastewater treatment products and services like ETP, STP, DM Plant, Industrial RO Plant and Water Softener to our clients in India and Abroad.


For more than 10+ years, we have been serving ETP, STP, DM Plant, Industrial RO and Water Softener Plant projects for our happy clients' acrosses 17+ countries.