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Industrial Applications

Real wastewater, real results

A selection of jar tests by our technical team on wastewater from plants across Malaysia: what the problem was, how we treated it, and what we achieved. Customer names are kept confidential.

  • Pipe coating plant: wastewater sample before and after treatment

    Pipe coating plant · May 2026

    Fluoride removed to well within discharge limits

    Jar test
    The issue
    Acidic process wastewater (pH 2.6) carrying high fluoride (220 mg/L) and suspended solids (486 NTU).
    How we solved it
    • Coagulant: Accot specialty coagulant
    • pH adjuster: Accot specialty pH adjuster
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Fluoride220 mg/L0.24 mg/L
    Turbidity486 NTU1.26 NTU
    pH2.66.3

    Well within the DOE fluoride limits of 2.0 mg/L (Standard A) and 5.0 mg/L (Standard B).

    Learn more: What is a coagulant? · What is a pH adjuster?

  • Metal surface-treatment chemicals plant: wastewater sample before and after treatment
    Photos: 2026 follow-up test.

    Metal surface-treatment chemicals plant · June 2025

    Chelated nickel brought within the Standard B limit

    Jar test
    The issue
    Nickel in the wastewater was locked in chelated complexes that ordinary coagulation cannot remove, so the effluent kept failing the DOE Standard B nickel limit of 1.0 mg/L.
    How we solved it
    • Treatment: Accot specialty treatment chemicals
    • Coagulant: Accot specialty coagulant
    • pH adjuster: Accot specialty pH adjuster
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Nickel13.89 mg/L0.23 mg/L
    Zinc163 mg/L0.89 mg/L
    Manganese14.2 mg/L0.00 mg/L

    All three metals within DOE Standard B. A follow-up series in 2026 confirmed the result.

    Learn more: What is a metal catcher?

  • Silica sand processing plant: wastewater sample before and after treatment

    Silica sand processing plant · February 2026

    Fluoride cut by 96% in pickling-plant wastewater

    Jar test
    The issue
    Wastewater from the acid pickling plant carried 152 mg/L of fluoride along with orange suspended solids.
    How we solved it
    • Coagulant: Accot specialty coagulant
    • pH adjuster: Accot specialty pH adjuster
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Fluoride152 mg/L5.4 mg/L
    Turbidity78.3 NTU10.1 NTU

    Learn more: What is a coagulant?

  • Rubber latex processing plant: wastewater sample before and after treatment

    Rubber latex processing plant · January 2026

    Milky latex wastewater cleared to under 2 NTU

    Jar test
    The issue
    Combined latex and final-discharge wastewater was milky white, with turbidity above 1,000 NTU.
    How we solved it
    Results before and after treatment
    ResultBeforeAfter
    Turbidity> 1,000 NTU1.92 NTU
    AppearanceMilky whiteClear, colourless

    Learn more: What is a coagulant? · What is a flocculant?

  • Halal food industrial park: wastewater sample before and after treatment

    Halal food industrial park · September 2026

    Acidic wastewater neutralised and cleared

    Jar test
    The issue
    Wastewater in the treatment plant's aeration tank had turned strongly acidic and cloudy.
    How we solved it
    • Coagulant: ACCOT K101
    • pH adjuster: Accot specialty pH adjuster
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    pH3.96.7
    Turbidity273 NTU5 NTU

    Learn more: What is a pH adjuster?

  • Snack food factory: wastewater sample before and after treatment

    Snack food factory · January 2026

    Acidic, cloudy wastewater prepared for flotation

    Jar test
    The issue
    Acidic, cloudy wastewater above 800 NTU was feeding the plant's dissolved air flotation (DAF) unit.
    How we solved it
    Results before and after treatment
    ResultBeforeAfter
    pH4.36.1
    Turbidity> 800 NTU11.2 NTU

    Learn more: What is a flocculant? · What is a pH adjuster?

  • Sanitary landfill: wastewater sample before and after treatment

    Sanitary landfill · September 2026

    Black landfill leachate turned clear

    Jar test
    The issue
    Raw landfill leachate was black, with turbidity above 800 NTU.
    How we solved it
    • Coagulant: ACCOT PAC
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Turbidity> 800 NTU94.7 NTU
    AppearanceBlackClear, yellowish

    Learn more: What is a coagulant?

  • Aircraft maintenance facility: wastewater sample before and after treatment

    Aircraft maintenance facility · August 2026

    Cloudy wastewater cleared to under 1 NTU

    Jar test
    The issue
    White, cloudy wastewater in the equalisation tank.
    How we solved it
    Results before and after treatment
    ResultBeforeAfter
    Turbidity90.5 NTU0.73 NTU
    AppearanceWhite, cloudyClear, colourless

    Learn more: What is a coagulant?

  • Semiconductor plant: wastewater sample before and after treatment

    Semiconductor plant · January 2024

    Slurry that presses easily, with clear filtrate

    Jar test
    The issue
    Fine slurry had to be separated in a filter press.
    How we solved it
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Turbidity672 NTU12.4 NTU
    FiltrateSlurryClear

    Learn more: What is a flocculant? · What is sludge dewatering?

  • Dairy plant: wastewater sample before and after treatment

    Dairy plant · January 2026

    Just enough treatment to protect the biology

    Jar test
    The issue
    Solids had to be removed ahead of the DAF unit without stripping out the organics that feed the biological reactor (SBR) downstream — so the target was just enough clarification, not the clearest possible water.
    How we solved it
    • Coagulant: Accot specialty coagulant
    • Flocculant: Accot polymer flocculant
    Results before and after treatment
    ResultBeforeAfter
    Turbidity125 NTU18.5 NTU
    FiltrateWhitishClear, colourless

    Learn more: What is biological treatment?

  • Chemical plant: wastewater sample before and after treatment

    Chemical plant · May 2026

    Strongly alkaline wastewater neutralised and cleared

    Jar test
    The issue
    A mix of high- and low-concentration process streams was strongly alkaline and milky.
    How we solved it
    Results before and after treatment
    ResultBeforeAfter
    pH11.56.0
    Turbidity> 800 NTU5.3 NTU

    Learn more: What is a pH adjuster?

Results are from laboratory jar tests on samples of each plant’s own wastewater. Results at full scale depend on the plant and its operating conditions.

Have a similar problem?

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