Working Procedure Of Effluent Treatment Plant (ETP) | Treatment Of Waste Water

Effluent Treatment Plant (ETP) is essential to purify the waste water which is come from different types of manufacturing industry like textile, ternary, dyes and chemical manufacturing industry, pharmaceuticals etc. Different environment saving organizations are trying to protect the environment from the harmful effect of the effluent. Different waste water has different characteristics which pollute the water.

Process flow chart of effluent treatment with effluent treatment plant: Following is the basic structure of effluent treatment plant.

Effluent from different manufacturing industry

Primary Filtration

Cooling and Mixing

Neutralization (by acid or alkali)

Chemical Co-agulation

Settling and Separation of Sludge

Pressure Filtration


Now, I like to give a short description about the sequence of operation in effluent treatment plant.

Primary Filtration: It is the first stage of effluent treatment plant, where effluent is come from weaving, dyeing, printing or finishing unit. Here primary filtration is performed to remove solid waste particles.

Cooling and Mixing: In this stage, different types of effluent are mixed and cool down by the help of motor which run a fan.

Neutralization Tank: After cooling and mixing; effluent is transferred to neutralization tank by the help of pump. Here, acid or alkali is mixed to neutralize the effluent. A pH meter is placed in the neutralization tank.

Co-agulant Bath: After neutralization of effluent; effluent is transferred to a co-agulant bath. Here, co-agulant is added with the effluent.

Settling Tank: In here; effluent separates from the water and it found in the lower level of the tank. Effluent is like as sludge.

Pressure Filter: Here, filtration is done under pressure. A certain amount of pressure is created here.

Carbon Filtration: It is an optional filter process.

Discharge to Drain: After completion of all the process, the effluent becomes purify and it becomes safe to drain to the environment.

When treated water is drain to the environment it is checked by the different testing lab. Different standard is maintained during discharge of the treated effluent.

104 thoughts on “Working Procedure Of Effluent Treatment Plant (ETP) | Treatment Of Waste Water

        MY EMAIL .ID

        Pushpendra Singh

      2. Kindly contact me we have urgent requirement for etp plant in Delhi aiims site
        Contact number

      3. dear sir
        I want to know more about of ETP. and also chemically dosing in diiferent stages like equalization tank,aeration much COD & BOD….How to control.

      4. Dear sir,
        can you tell me the proportion of each element in effluent water after dyeing in textile mill?

      5. Sir, i want to know the design of ETP Plant used in detergent powder plant, food industry, phosphating industry. how will they differ in design

      6. Please provide me manufacturers contact preferably from punjab/chandigarh etc for effluent treatment plant.

    1. we are from chembond chemicals ltd and provides water treatment solutions
      and we are running our no. of sites if u give an opportubity we can offer u better solutions.

  1. Please guide me,from where can i start learning the Full ETP process,as i am new in this.I want to be technically sound in this.

    1. because next step is neutralization by acid or base which is highly exothermic process so we take precooled input for neutralization.

  2. please guide me.Actully we have ultra filtration plant and sewege treatment plant.the rinsing water coming from Uf we send to STP can we do this process or we stop it.what effect was caused if we mix that rinsing water with STP.bcoz the mixture contain odour.

  3. Dear Sir,
    Please guide us to operate, maintenance, how to make daily log records and materials to be used to treating waste water.

  4. Sir, for better description of ETP process, the chemicals names includes which are used for ETP process Should be described with every process step.

    1. primary treatment : here removal of sludge and oil & greases.

      Secondary treatment: here removal of COD and Other Organic matter and on Bacteria devaloped.

      Tertiary treatment: Here removal of SS, TDS And Odour.

      * I Known this matter in ETP.

    1. We are from Bijay-Eco solution & Engineers Pvt. Ltd.
      You can send your CV to through our email. My contact no 9658960058.

    2. Please contact us for Job… we need ETP engineer, Ph no: 9440955308 location for job is jadcharla, hyderabad

  5. Dear Sir,
    Please share the full process of ETP in rice mill industry.Sir my mobile no 9437227764.

  6. Am having ayurvedic mfg.unit and in search of a guideline to set up an etp. Our effluent does not contain any drugs,dyes,oil,wax,tar,acids,carbon compounds etc. Our effluent water is just a waste water coming from washing of utensils ad cloths. Pls guide

    1. Can you suggest me how to constuct a compact ETP for a medical diagnostic centre daily producing 20-50 litre effluent ?

  7. Sir plz guide me to set up an etp plant for an fasteners manufacturing industry for an capacity of 1200/hr…

  8. Please Sir , Can you provide me the all Engineering Process of Study on effective removal of methanol from petrochemical effluent water

  9. Hello Sir,
    I m Dnyaneshwar , currently working in Nemus Pharmaceutical Pvt. Ltd Dharwad (KTK). Our unit is newly developed. So please help us regarding ETP plant.

    Actually we required Daily log of ETP in which Daily activities of ETP, their process and tests, lab testing methods and limits of impurities etc.

    Please, if anyone having this types of docs , send me on my mail id:

  10. Dear Sir
    First of all I would like to thank you for posting about ETP.Sir I want more details about operations & maintenance of each parts in ETP .
    My mail id is

  11. Good Morning,

    We are Pune based Environmental Engineers & Consultants. Our Major work area is Design, Supply, Installation & Commissioning of ETP/STP/WTP/RO/DM plants.

    In Case any requirement you may contact us on 09850957232 or

    Suryakant Samant
    Envirotech Systems, Pune

  12. Dear Sir
    Please guide me I am a fresher to ETP OPERATOR in a Biscuit Manufacturing company.
    Send me the operation, troubleshooting etc process.
    As soon as possible.
    What is the future in this field…?
    With regards MANOJ

  13. this is polymer and water treatment chemicals industry…. we are facing difficulties with highly viscous which is unable to pump or transfer through transfer pump, having high ammonical nitrogen and highly conductive….plz suggest me to treat the effluent efficiently…

  14. Sir we are also fallowing same method with alum, lime and poly. without areation. And the water to be treated is from the processing of jam pickle and sauce.
    The problem is bad smell.

  15. Etp ke lab me job krna hamare carrier Ko kitna aage le ja skta hai. Please reply me sir

  16. Dear all,

    We have a job openings as ETP operator and above at one of our site at Jatcharla,hyderabad. If any body intersted please contact us at 9440955308, or mail us

  17. Sir I want to know about the etp plant.i am new in i district so i Request to please told me the basic idea. And process about etp

  18. Sir, please send me ETP process & its functions to know well about ETP which is very essential for industry

  19. R/sir
    I am working in plating department of door fitting hardware of brass zinc and aluminium material here many type of chemical uses like sulphuric acid ,hcl,chrome salt, caustic soda kindly provide me process of etp of waste water mixed with acid and base
    I am generally use caustic soda for ph valence sodium metabi sulphate for acid neutralize and poly electrolyte but water could not be clear it look greenish water so what should i do??

  20. Dear Sir,

    Good day to you. I am an officer of textile ETP. I want to know the update information of ETP in details so that i can overcome all of the trouble shooting of ETP. Such as , what happened in Biological Plant when air,waste water and bacteria are mixed. Classification of Foam and how can i identify and remove.

    Stay well sir .

    Apu Roy
    From Gazipur

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