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Sunday, June 22, 2008

You only have to ask for it.

 
All that you desire is just a request away. You only have to ask for it. Children do so with supreme confidence, but as we grow older, we hesitate to ask for anything as we fear rejection.

http://timesofindia.indiatimes.com/Lifestyle/O-zone_Just_ask_for_it/articleshow/3153267.cms

Thursday, June 19, 2008

Plan-It STOAT - a unique tool for planning and pre-design of wastewater treatment plants

 
Bartilucci covering all aspects of municipal and industrial water and waste engineering.

WRc provides high-end consultancy services, and have developed a world-leading range of process simulation software.

Our software products include:

  • STOAT – dynamic simulation of wastewater treatment processes
  • OTTER – dynamic simulation of potable water treatment processes
  • Plan-It STOAT – a unique tool for planning and pre-design of wastewater treatment plants
  • GACMan – design and management of activated carbon adsorbers
  •  
     

    Tuesday, June 17, 2008

    A2/O Wastwater Treatment Plant

    Subject: A2/O Wastwater Treatment Plant

    Dear sir,
     
     
     
    anyway we are working in A2/O also.
     
    It is necessary to introduce nitrogen and phosphorus removal processes in the  wastewater treatment plants  to improve the water quality . An A2/O (anaerobic-anoxic-oxic) process using immobilized media is proposed here, as a high-end technology to meet stricter discharge standards when faced with treatment space limitations. Fluidized immobilization media were added to the aerobic reactor to maintain a high concentration of nitrifying bacteria and nitrification rate. The process performs well for removal of nitrogen and phosphorus under the condition of HRT = 8 hr, it was possible to obtain an effluent water quality as follows: T-N<8.0 mg/L; T-P<1.0 mg/L.
     
    Flow chart
                      1.3 Q return from Aerobic
                                      l
      Q In--- Anaerobic--Anoxic---Aerobic--Settling--- Out
                     l
              0.5 Q Return From Settling
     
     
    A2/o process is basically adding of  Anoxic zone between Anaerobic and aerobic .
     
     

    Dear Saleem

     

    i am working in tender for sewage treatment plant, where consultant asking for carry the process calculation based on A2/O process technology,

    did you have any furthure information about this process

    plz help me