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      1. SHENHUA MONGOLIA GUOHUA HULUNBUIR ELECTRIC POWER CO.,LTD.

        SHENHUA MONGOLIA GUOHUA HULUNBUIR ELECTRIC POWER CO.,LTD.


        Location: China


        Total capacity of water treatment system: 340 m3/hr permeate


        Feed water sources: surface water


        Water treatment process: UF+RO +IX


        Treated water application: Boiler feed water 


        Challenge: High iron scaling, high organic fouling and high biofouling potential


        System operation time: Since 2013


        1. Introduction
        The power plant needed 8160 ton of water daily to meet the demand of boiler make up water . The raw water source comes from surface water with high level of organic and biofouling and iron scaling potential.
        GPF8112 and antiscalant Checkmate CPE11000 are continuously dosed. A non oxidizing biocide TBC9527 is continuously dose to prevent organic and biofouling in the system.
        Table 1: Summary of Chemical Dosing

        Chemical Name Type Dosage (mg/l) Dosing Method
        Flocculant GPF8112 1.3 Continuous dosing
        Antiscalant Checkmate CPE11000 0.37
        Non oxidizing biocide TBC9527 3


        Table 2: Contains average data performance for UF from 2013-2015 

        UF Operation Data
        Date pressure (MPa)

        Product water yield

         m3/h

        Turbidity 

        NTU 

        feed product
        2013.08.26 0.1 0.06 90 0.15
        2014.05.12 0.1 0.06 88 0.36
        2015.01.15 0.09 0.06 85 0.22
        2015.12.20 0.09 0.06 86 0.28


        Table 3: Contains average RO operation data from year 2013 -2015 

        RO Operation Data
        Date pressure (MPa) Flow (m3/h) Conductivity (μs/cm)
        feed Interseg. concetration product concetration feed product
        2013.08.26 0.8 0.72 0.66 85 28.6 690 10.2
        2014.05.12 0.8 0.7 0.65 85 29.1 688 9.7
        2015.01.15 0.74 0.69 0.62 80 27 473 7.1
        2015.12.20 0.77 0.7 0.64 82 28 486 7.8


        CONCLUSION
        The system operation is very stable and operates without any scaling or fouling. The cleaning frequency of the RO system is every 12 months. Our client is very happy with all the chemicals provided by Ochemate Advanced Material Technology is helping them to save time and money by having a continuous RO plant operation with minimal downtime.


         





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