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    PSMPL 7 Sep 22

    Uploaded by

    Waseem Syed
    This document contains a water treatment report for multiple systems at a plant. The primary system has low pH and orthophosphate levels. The secondary system has extremely high conductivity, TDS and chloride levels with low orthophosphate. The induction furnace has low orthophosphate but other parameters are normal. The rolling mill TDS is high and it and the rolling mill TMT system have extremely high conductivity, TDS and chloride levels with low orthophosphate and high iron. Recommendations include chemical additions and blowdown to address the issues.

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    PSMPL 7 Sep 22

    Uploaded by

    Waseem Syed
    35 views1 page
    This document contains a water treatment report for multiple systems at a plant. The primary system has low pH and orthophosphate levels. The secondary system has extremely high conductivity, TDS and chloride levels with low orthophosphate. The induction furnace has low orthophosphate but other parameters are normal. The rolling mill TDS is high and it and the rolling mill TMT system have extremely high conductivity, TDS and chloride levels with low orthophosphate and high iron. Recommendations include chemical additions and blowdown to address the issues.

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    This document contains a water treatment report for multiple systems at a plant. The primary system has low pH and orthophosphate levels. The secondary system has extremely high conductivity, TDS and chloride levels with low orthophosphate. The induction furnace has low orthophosphate but other parameters are normal. The rolling mill TDS is high and it and the rolling mill TMT system have extremely high conductivity, TDS and chloride levels with low orthophosphate and high iron. Recommendations include chemical additions and blowdown to address the issues.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    35 views1 page

    PSMPL 7 Sep 22

    Uploaded by

    Waseem Syed
    This document contains a water treatment report for multiple systems at a plant. The primary system has low pH and orthophosphate levels. The secondary system has extremely high conductivity, TDS and chloride levels with low orthophosphate. The induction furnace has low orthophosphate but other parameters are normal. The rolling mill TDS is high and it and the rolling mill TMT system have extremely high conductivity, TDS and chloride levels with low orthophosphate and high iron. Recommendations include chemical additions and blowdown to address the issues.

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    © All Rights Reserved
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    NALCO SERVICE REPORT - PSPL

    DATE 7-Sep-22 COPY


    LAB ANALYSIS
    Parameters Unit Results Parameters Unit Results
    Primary C.T Secondary C.T
    pH (7.9-8.4) - 7.20 pH (7.9-8.4) - 7.40
    Cond (<2500) us/cm 2010 Cond <2500) us/cm 12600
    TDS (ppm) ppm 1206 TDS (ppm) ppm 7560
    T-H (<400) ppm 285 T-H (<400) ppm 897
    M-Alkalinity (58-200) 45 M-Alkalinity (58-200) 47
    Chloride (<525) - 427 Chloride (<525) - 1029
    O-Phosphate (6-10) us/cm 1.8 O-Phosphate (6-10) us/cm 1.0
    T-Zn (0.8-1.2) ppm 0 T-Zn (0.8-1.2) ppm 0
    T-Fe (<1) ppm 0.40 T-Fe (<1) ppm 3.10
    SS (<35) ppm 0.00 SS (<35) ppm 0.00
    0 0.00
    Furnace C.T Rolling Mill
    pH (7.9-8.4) - 7.64 pH (7.9-8.4) - 8.70
    Cond (<2500) us/cm 2720 Cond (<2500) us/cm 2610
    TDS (ppm) ppm 1632 TDS (ppm) ppm 1566
    T-H (<400) ppm 338 T-H (<400) ppm 200
    M-Alkalinity (58-200) 58 M-Alkalinity (58-200) 150
    Chloride (<525) 589 Chloride (<525) 670
    O-Phosphate (6-10) - 1.1 O-Phosphate (6-10) - 7.8
    T-Fe (<1) ppm 0.5 T-Fe (<1) ppm 0.0
    SS (<35) ppm 0 SS (<35) ppm 0

    Makeup Water Rolling Mill TMT


    pH (>6.7) - 0.00 pH (7.9-8.4) - 8.40
    Conductivity (<300) us/cm 0 Cond (<2500) us/cm 6510
    T-H ppm 0 T-H (<400) ppm 510
    Ca-H (>20 ) ppm 0 M-Alkalinity (58-200) ppm 132
    Mg-H ppm 0 Chloride (<525) ppm 1631
    T-Alkalinity (>58) ppm 0 O-Phosphate (6-10) ppm 0.5
    Chloride (<155) ppm 0 T-Fe (<1) ppm 2.3
    T-Fe (<1) ppm 0 SS (<35) ppm 0
    SS (<10) ppm 0

    OBSERVATIONS RECOMMENDATIONS
    Primary: pH & Ortho-Phosphate reserves are low. the rest of the parameters are fine Primary: To increase Ortho-Phosphates, add 2 kg 3DT-426, and add 1 kg ST-40

    Secondary: Conductivity and TDS are extremely high. Resultantly, chlorides are also extremely Secondary: Operate blowdown to reduce TDS. after fresh makeup, add 1 kg 3DT-426 & 1 kg ST-
    high.Ortho-Phosphate reserves are low 40

    Induction Furnace: Ortho-Phosphate reserves are low. the rest of the parameters are in Induction Furnace: Add 2 kg 3DT-426 to increase Ortho phosphate reserves.
    range.
    Rolling Mill: Add 1 kg 3DT-426 & 0.5 kg ST-40.
    Rolling Mill: Parameters have improved from previous results. TDS are high which needs to be
    addressed. Rolling Mill TMT: Operate blowdown and drain 50% of the existing water to bring TDS to
    acceptable limits. add 1 kg 3DT-426.
    Rolling Mill TMT: Conductivity and TDS are extremely high. Resultantly, chlorides are also
    extremely high.Ortho-Phosphate reserves are low. iron is also high NOTE: Please note that makeup water in cooling towers must be 95% RO permeate and 5% well
    water to keep alkalinity of the system in control to have adequate pH in cooling towers

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