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فناوری منابع زیستی
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  • initial-rate based method for estimating the maximum heterotrophic growth rate parameter (μhmax)

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 509
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     currently, the method most used for measuring the maximum specific growth rate (μhmax) of heterotrophic biomass is by respirometry, using growth batch tests performed at high food/microorganism ratio. no other technique has been suggested, although the former approach was criticized for providing kinetic constants that could be unrepresentative of the original biomass. an alternative method (seed-increments) is proposed, which relies on measuring the initial rates of respiration (ro2_ini) at different seeding levels, in a single batch, and in the presence of excess readily biodegradable substrate (ss). the asm1-based underlying equations were developed, which showed that μhmax could be estimated through the slope of the linear function ofro2_ini·(vww + vml) vs vml (volume of mixed liquor inoculum); vww represent the wastewater volume added. the procedure was tested, being easy to apply; the postulated linearity was constantly observed and the method is claimed to measure the characteristics of the biomass of interest.

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