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  1. aahmed

    High COD in treated effluent

    Hi All For last 15 days we are facing high COD of our treated effluent and we have have aatken all known actions but its not restoring. Urgently need advice. Below are details: We are operating an activated sludge waste water treatment plant. This an aerobic system involving deepshaft...
  2. aahmed

    Silica Slippage in Demin Water

    Hi everybody we have two sets of SAC and SBA anion resins.We are using Rohm and Hass Resins.Total silica in our feed water varies ( open surface water) between 5-8 ppm.Now we are facing problem of silica slippage from anions at same throughputs where we used to see normal results.our limit is...
  3. aahmed

    Suggest some technical Books

    Dear Forum Members I am achemical engineer working in a manufaturing plant. We are going to establish a technicalbook bank at our plant. Kindly suggest me some useful and good books which you recommend for chemical / process engineers which we should bought. Thanks Best Regards aahmed
  4. aahmed

    Thermal shocks in vertical falling thin film evaporators

    Hi am a chemical engineer and new to this forum.Below is my problem statement: We have a vertical thin film evaporator used to remove solvent from a slurry ( containing 10 - 12 % solids ).HP steam ( 100 barg ) is let down through a PCV upto 50barg ( obviously a SH steam) and goes to four...

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