ETP Design

Effluent Treatment Plant

Effluent Treatment Plant

Effluent Treatment Plant or otherwise known as ETP is one type of wastewater treatment method which is particularly designed to purify industrial wastewater for its reuse and its main objective is to release safe water back into the environment and thus keep the rivers and environment safe from the harmful effect caused by the effluent treatment.

Industrial effluents contain various materials, this is dependent on the industry.

Some effluents contain grease and oils, and some contain toxic materials (e.g., cyanide).

Effluents from food and beverage factories contain degradable organic pollutants. Since industrial wastewater contains a diversity of impurities and therefore specific treatment technology called ETP is required.

The ETP Plant works at various levels and involves various physical, chemical, biological and membrane processes to treat wastewater from different industrial sectors like chemicals, drugs, pharmaceutical, refineries, dairy, ready mix plants & textile etc.

Effluent Treatment Plant

Choosing an effluent treatment plant guide – Great Resource 

Benefits Of Having A ETP

1. To clean industry effluent and recycle it for further use
2. To reduce the usage of fresh water in industries
3. To preserve natural environment against pollution
4. To meet the standards for emission of pollutants set by the Government & avoid heavy penalty
5. To reduce expenditure on water acquisition

Industrial Effluent Treatment Process:
The treatment of different effluents varies with the type of effluent. Wastewater enters the effluent or sewage treatment plant and goes through several processes before effluent goes into the environment. Industrial effluent treatment plant process includes the following stages:

Preliminary Treatment: Its objective is physical separation of large sized contaminants. For example cloth, paper, plastics, wood logs etc

Primary Treatment: Its aim is removal of floating and settleable materials such as suspended solids and organic matter.

Secondary or Biological Treatment: The objective of this treatment is the further treatment of the effluent from primary treatment to remove the suspended solids and residual organics.

Tertiary/advanced/disinfection treatment: The purpose of tertiary treatment is to provide a final treatment stage to raise the effluent quality to the desired level before it is reused, recycled or discharged to the environment.

Effluent Treatment Equipment and Parts

Screw Press – The sludge dewatering screw presses (thickening screw presses) are used for a continuous dewatering of urban and industrial sludge. Depending on the nature of the input sludge from the municipal wastewater treatment plants, the output concentration of 18-24% solids can be reached.

DAFDissolved Air Floatation

Clarification – A clarifier is generally used to remove solid particulates or suspended solids from liquid for clarification and (or) thickening.

Centrifuge– Centrifuges are designed to separate solids from sludge mixtures with continuous and space-saving dewatering systems combined with high efficiency.

Belt press or Belt Filter Press – Filter presses for sludge treatment. Filtration is the most widely used method in the treatment of sludge produced by wastewater treatment. It can consist just in drainage though sand beds or it can be mechanical under vacuum middle or high-pressure conditions which require more sophisticated equipment.

Plate frame press – A plate and frame filter press is the most fundamental design, and many now refer to it as a “membrane filter plate”. This type of filter press consists of many plates and frames assembled alternately with the support of a pair of rails. The presence of a centrifuge pump ensures the remaining suspended solids do not settle in the system, and its main function is to deliver the suspension into each of the separating chambers in the plate and frame filter. For each of the individual separating chambers, there is one hollow filter frame separated from two filter plates by filter cloths. The introduced slurry flows through a port in each individual frame, and the filter cakes are accumulated in each hollow frame. As the filter cake becomes thicker, the filter resistance increases as well. So when the separating chamber is full, the filtration process is stopped as the optimum pressure difference is reached. The filtrate that passes through filter cloth is collected through collection pipes and stored in the filter tank. Filter cake (suspended solid) accumulation occurs at the hollow plate frame, then being separated at the filter plates by pulling the plate and frame filter press apart. The cakes then fall off from those plates and are discharged to the final collection point.[5]

Cake discharge can be done in many ways. For example: Shaking the plates while they are being opened or shaking the cloths. A scraper can also be used, by moving from one chamber to another and scraping the cake off the cloth. At the end of each run, the cloth’s are cleaned using wash liquid and are ready to start the next cycle

How It Works – Effluent Treatment Process

Wastewater Treatment Process Using an Effluent Treatment Plant

Effluent Treatment Plant Design and Custom Designs:
The design of ETP depends on quality and quantity of wastewater discharged from the different industries and land availability. If the availability of land in your industry is less, then Common Effluent Treatment Plant (CETP) is preferred over Effluent Treatment Plant (ETP).

Why Choose GPC?

GPC Clear Solutions Limited is a major supplier of the highest quality chemicals for industrial wastewater treatment and sludge de-watering within the UK.

With over 30 years experience in the business, we are able to quickly understand our customer’s needs and respond by supplying a cost-effective chemical solution, not only solving current issues but also providing on-going lowest cost of treatment.

We will:

  • Visit your site to gain a full understanding of the process and needs.
  • Recommend chemical solutions based on laboratory investigation.
  • Survey current effluent equipment and recommend improvements as necessary.
  • Provide on-going technical support to ensure the lowest cost of treatment.

GPC Clear Solutions Limited has a dedicated team to provide not only site and laboratory support but also administration that will ensure your products arrive on time, every time!

We are involved in a wide range of industries throughout the UK including ready-made meals, vegetable processing, abattoirs, sand and gravel, recovered aggregate, land reclamation, metal plating and anodising.

We are able to provide solutions for the vast majority of water-based, industrial effluent and sludge that requires solid-liquid separation.

For further information, please fill in our enquiry form or contact us below


References, Links and Resources:

Guide –

For further information, please fill in our enquiry form or contact us below