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The difference between the approaches of different researchers in describing the kinetics of bacterial growth lies in the choice of the most significant factors affecting the specific growth rate of microflora. In general, the specific growth rate of microorganisms depends on the availability of a limiting substrate, the presence of inhibitors, acidity, ambient temperature, and others. Thus, the specific growth rate of biomass depends on difficult to determine values. As a result of the analysis of known models, in this work we used the Kobozev model, with a minimum number of physicochemical and biological factors. Despite its relative simplicity, the model allows us to pose and solve the problem of optimizing the process of anaerobic fermentation. A systematic numerical experiment was carried out for a wide range of the above parameters. The optimal values ​​of the main input parameters were found for the studied biomass species.

  • Web Address
  • DOI
  • Date of creation in the UzSCI system05-08-2020
  • Read count244
  • Date of publication19-05-2020
  • Main LanguageIngliz
  • Pages70-76
Ўзбек

Turli tadqiqotchilarning bakterial o‘sish kinetikasini tavsiflashdagi yondoshuvlar o‘rtasidagi farq mikrofloraning o‘sish sur'atlariga ta'sir etuvchi eng muhim omillarni tanlash bilan bog‘liq. Umuman olganda, mikroorganizmning o‘ziga xos o‘sish sur'atini cheklovchi substratning mavjudligiga, ingibitorlarning mavjudligiga, kislotalikka, atrof-muhit haroratiga va boshqalarga bog‘liq. Shunday qilib, biomassaning o‘ziga xos o‘sish sur'ati qiymatlarini aniqlash qiyinligiga bog‘liq. Ma'lum modellarni tahlil qilish natijasida ushbu ishda biz minimal miqdordagi fizik-kimyoviy va biologik omillarni hisobga olgan holda Kobozev modelidan foydalandik. Nisbatan soddaligiga qaramay, model bizga anaerobik fermentatsiya jarayonini optimallashtirish masalasini hal qilish va imkonini beradi. Yuqoridagi parametrlarning keng doirasi uchun tizimli sonli tajriba o‘tkazildi. O‘rganilayotgan biomassa turlari uchun asosiy kirish parmetrlarining maqbul qiymatlari topildi.

 

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English

The difference between the approaches of different researchers in describing the kinetics of bacterial growth lies in the choice of the most significant factors affecting the specific growth rate of microflora. In general, the specific growth rate of microorganisms depends on the availability of a limiting substrate, the presence of inhibitors, acidity, ambient temperature, and others. Thus, the specific growth rate of biomass depends on difficult to determine values. As a result of the analysis of known models, in this work we used the Kobozev model, with a minimum number of physicochemical and biological factors. Despite its relative simplicity, the model allows us to pose and solve the problem of optimizing the process of anaerobic fermentation. A systematic numerical experiment was carried out for a wide range of the above parameters. The optimal values ​​of the main input parameters were found for the studied biomass species.

Русский

Отличие подходов разных исследователей при описании кинетики бактериального роста заключается в выборе наиболее значимых факторов, влияющих на удельную скорость роста микрофлоры. В общем случае, удельная скорость роста микроорганизмов зависит от доступности лимитирующего субстрата, наличия ингибиторов, кислотности, температуры среды и другие. Таким образом, удельная скорость роста биомассы зависит от трудности при определении величин. В результате анализа известных моделей, в данной работе использована модель Кобозева, с минимальным количеством физико-химических и биологических  факторов. Несмотря на относительную простоту, модель позволяет ставить и решать задачу оптимизации процесса анаэробного брожения. Проведен систематический численный эксперимент для широкого диапазона вышеназванных параметров. Найдены оптимальные для исследуемых видов биомасс значения основных входных параметров.

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