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    ETP Emergency Responce Plan..

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    Nishu Bora

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    © All Rights Reserved
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    ETP Emergency Responce Plan..

    Uploaded by

    Nishu Bora
    393 views13 pages

    Copyright

    © © All Rights Reserved

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    PPTX, PDF, TXT or read online from Scribd

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    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    393 views13 pages

    ETP Emergency Responce Plan..

    Uploaded by

    Nishu Bora

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 13

    SHIVALIK PRINTS LIMITED

    ETP
    Emergency Response Plan
    Environmental Laws/Acts in India
    • Water (Prevention & Control of Pollution) Act, 1974;
    • Air (Prevention & Control of Pollution) Act, 1981,
    • Water (Prevention & Control of Pollution) Cess Act, 1977;
    • Environment (Protection) Act, 1986;
    • Hazardous Wastes (Management & Handling) Rules, 1989;
    • Manufacture, Storage & Import of Hazardous Chemicals
    Rules, 1989,
    • Noise pollution (regulation and control) rules, 2000

    Water (Prevention And Control of Pollution) Act


    Requirements
    • Not to discharge, knowingly, any effluent not conforming to
    the standards
    • Furnish information to the SPCB of any accident or
    unforeseen
    event
    • Comply with the directions issued in writing by the SPCB
    Basics / Fundamentals of ETP
     PRELIMINARY TREATMENT OF EFFLUENT
    SCREENS
    OIL /GREASE REMOVAL
    TRAP FLOW EQUALIZATION

     PUMPS for effluent transfer /lifting.

     PHYSIO-CHEMICAL TREATMENT- Dosing of Treatment chemicals


    solutions. CHEMICALS DOSING - Ferrous Sulphate, PAC, Lime, Poly-
    electrolyte. FLASH MIXERS AND FLOCULATION TANKS-Tanks fitted
    with mixers.
    Effluent and treatment chemicals solutions react resulting in chemical reaction,
    which remove colour, TSS, COD and BOD etc.
    SETTLING- Tube settlers with hopper bottom (without scraper).

    BIOLOGICAL TREATMENT-
    FILTRATION -Pressure FILTERS –Single /Dual Media (DMF), ACF .
    CHLORINATION / Disinfection - to kill the bacteria/residual colour.
    SLUDGE DEWATERING- Filter Press. Do not provide SDB, not adequate.
    Schematic Flow Diagram of ETP
    Untreated Effluent

    Bar Screens Screenings


    Waste

    O/G Removal Traps Oil / scum

    Equalization Tank Filtrate


    Chem. Dosing

    Flash Mixers -1, 2

    Flocculation Tank

    Tube Settler

    Tank and Pumps Dry Cake


    (Storage &
    Disposal)
    Dual Media Filters
    Back wash
    Waste
    water
    Treated Effluent for disposal / RO for reuse in
    Schematic Flow Diagram of ETP
    1. Screens
    2. Grit Removal Chamber
    3. Oil & Grease Removal Traps / Oil Skimmers

    Screens
    If not cleaned properly & regularly, then
     Freqent chocking / clogging of pumps & pipe line.
     Overflow thru' inlet drains / screen chamber
     Shock loading on further treatment units.

    Screenings Removal & Disposal.

    INLET

    OUTLET Solid Waste

    Grit Removal & Disposal (Rarely required in ETPs)

    Solid Waste
    If not removed, then
     May cause excessive wear & tear / abrasion to mechnical
    equipments particularly - pumps.
     May reduce effective capacity of treatment units.
    PHYSICO – CHEMICAL TREATMENT
    Process
    Dosing
    Tanks Need / Necessity
     To remove visible pollutants e.g. colour
    from textile / other effluents, SS etc.
     To remove Heavy Metals / Toxic compounds
    To Clarifier / so as to make fit for biological treatment or
    Tube Settler
    safe disposal.

    1. COMPONENTS
    2. SOLUTIONS PREPARATION
    3. DOSING OF CHEMICALS
    Pump

    Flash Mixer or Floccullation Chamber


    Chemical Reduction
    Tanks

    (Rapid Mixing) (Slow Mixing) (Solid - Liquid Sepration)

    Clear / Colourless

    (Fine Sludge) (Flocs) (Settled Sludge)


    Operational and Performance Parameters
     OPERATIONAL Parameters-
    pH, Temperature, Flow rate (Litres /hr.) -
    actual vs.
    designed.

     PERFORMANCE Parameters-
    pH, BOD, TSS, COD, Oil/ Grease, TDS and other

    specific parameter such as Total Chromium,


    Phenolic
    compounds
    and detergent .
    Chemicals Dosing and Consumption in
    Physico- Chemical Treatment
     Chemicals used- in solution form
    Ferrous Sulphate / Ferric Alum / PAC,
    Hydrated Lime
    (powder) , Poly-electrolyte
    (PE).
     Quantities- depend on
    colour concn. in
    untreated
    effluent.
    Fer. Sulphate / Fer. Alum

    / PAC =150 to 200 mg/L


    =
    1
    Trouble Shooting for Physico - Chemical
    Treatment
    S. Problem Problem Reason (s) Remedy
    No.
    1. Carry over / lifting sludge •High Flow rate more •Adjust within design
    in Clarifier or than design value. range.
    Tube Settler. •Hopper filled with •Discharge sludge
    sludge, with drawal not by opening value.
    done.
    •High temperature of •Bring
    effluent. down temperature <
    •Insufficient dosing of 400C.
    P.E. • Increase
    •Improper grade of dosing
    polyelectrolyte (PE) slightly > 2mg/L.
    • Change P.E.
    Trouble Shooting for Physico - Chemical Treatment
    S. Problem Problem Reason (s) Remedy
    No.
    2. Partial removal of colour •Insufficient dosing of •Increase dosing. 8.0 in
    / residual colour chemical F. S.
    • Over dosing of F. S. • Reduce dosing.
    • High pH of influent.
    •Insufficient of •Adjust pH upto
    dosing P.E. Equalization
    Tank.
    Emergency Response Plan of ETP
    Document Standard operating procedure for Emergency
    Response Plan of ETP

    Objective Proper planning to save Human Beings and


    Environment from Natural, Expected or Unexpected
    situation

    Department General Maintenance, ETP and Washing

    Scope Safety, Discharge water, no proper treatment, careless


    run the ETP, Not maintain the Standard

    Emergency Co-ordinator Mr. JAGAT SINGH


    Safety Officer Mr. RAMESH KUMAR
    ETP Operator Mr. ASHOK DAS
    Rescue Team Maintenance/Washing/Security
    Emergency Response Plan of ETP
    S.No. Reason Response Plan

    1 Excess Discharge of To clear the drain line every time, and proper design to not
    raw water more than overflow the drain water.
    the drainage limit

    2 Overdosing of the Washing in charge use the chemical as per the recipe and
    chemical take care no any employee use over chemical then the
    recipe.

    3 Mud pump not Must be a spare pump for running of ETP, and change the
    working/breakdown pump on breakdown.

    4 Overflow of Raw -Raw Water collection have capacity to store the More
    Water Collection Tank capacity to discharge the washing water
    -Daily raw water should be treated on daily basis and so that
    water collection tank have less water.
    In case of emergency beyond the control water tank
    overflow and cross the 90% of tank limit, then to stop the
    washing for that time and call the septic tanker to suck the
    water and send to our sister concern approved unit from
    pollution board to treat the raw water and discharging.
    Emergency Response Plan of ETP
    S.No. Reason Response Plan

    1 ETP not functioning -In case of ETP Failure , We send the waste water to our
    sister concern factory Shivalik Prints Ltd. Plot no. 48, Sector-
    06 and Plot no. 7, sector 06 for treatment.

    2 In case of power out -In case of Powerout, then to stop the washing for that time
    in ZLD and call the septic tanker to suck the water and send to our
    sister concern approved unit from pollution board to treat
    the raw water and discharging. We send the waste water to
    our sister concern factory Shivalik Prints Ltd. Plot no. 48,
    Sector- 06 and Plot no. 7, sector 06 for treatment.

    3 Absence or illness of -In case operator is not available, other operator will operate
    operator the ZLD as per ZLD guidelines & SOP.

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