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Recent content by keochu

  1. keochu

    wastewater reuse for industrial cooling regulations, guidelines, etc

    Hello. I am trying to compare regulations, guidelines, recommendations, etc of different countries for using reclaimed wastewater in cooling systems. So far i know USA guidelines. Who knows about EUROPE, Israel, Southafrica, India, Japan etc? It will also helpful if someone know countries...
  2. keochu

    cooling tower make up water - ammonia presence

    you are right chlorine dioxide costs much more, but on the other hand we do not built a nitrification denitrification system that is really expensive, furthermore because of the "low" organic materia in the water the nitri-denitri system should be feed with ethanol, also expensive. There is no...
  3. keochu

    cooling tower make up water - ammonia presence

    Thanks cub3bead no cupper alloys foreseen in our system, noted. Bimr, no 100% agree with regard that ammonia consumes biological control chemicals,if the chemical is sodium hipoclhorite 100% agree but we foresee chlorine dioxide that does not react with ammonia. We will study the scheme you...
  4. keochu

    cooling tower make up water - ammonia presence

    Thanks Bimr for your help and interest. I´ll try to explain the global picture in order to give you a better understanding. 1- We take the water from a secondary wastewater treatment step that already exits without nitrification denitrification process. 2 - We plan to built a tertiary...
  5. keochu

    cooling tower make up water - ammonia presence

    Thanks Muggle. I confirm it´s NH4+. We are not thinking in reducing TKN, we are thinking in controlling bacterial growth with a combination of biocides. Chlorine dioxide is the biocide we foresee to use. The make up water flow is 720 m3/h. I am looking for someone experience with this level of...
  6. keochu

    cooling tower make up water - ammonia presence

    We are thinking in reusing of tertiary municipal wastewater as make up water for a cooling tower. The problem is that there is no nitrificaction denitrification process in the treatmente plant, so values of 45ppm of NH4+ are expected in the make up. Foreseen concentration factor is 2. Has...

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