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The impact of temperature on surface water biodenitrification - Kinetic modelling

机译：温度对地表水生物脱氮的影响-动力学模型

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The biodenitrification study was aimed for the nitrate removal from surface water of the Cetina river (SW) with the use of natural powdered Croatian clinoptilolite as a carrier of bacterial cells in the batch bioreactor. The natural powdered clinoptilolite with the attached bacteria (Bio-NPC) were used for removal of 50-250 mg NO_3～--N/L from the SW. The influence of initial nitrate as well as the temperature impact on the batch biodenitrification process was investigated. The nitrate removal from the SW (C_0 = 100 mg NO_3~--N/L) was monitored in the temperature range of 15-35 °C. The denitrification rates increased with the increase of temperature and according to the Arrhenius equation the activation energy was 48.25 kJ/mol. On the basis of the experimental data and literature, the model of biological denitrification process was developed and determinated as the zero order model by the use of an alternated differential method (ID algorithm).
机译：生物脱氮研究的目的是使用天然粉状克罗地亚斜发沸石作为分批生物反应器中细菌细胞的载体，从Cetina河（SW）的地表水中去除硝酸盐。天然粉状斜发沸石及其附着细菌（Bio-NPC）用于去除西南部50-250 mg NO_3〜--N / L。研究了初始硝酸盐的影响以及温度对分批生物脱氮过程的影响。在15-35°C的温度范围内监测了SW的硝酸盐去除量（C_0 = 100 mg NO_3〜--N / L）。反硝化率随温度的升高而增加，根据Arrhenius方程，活化能为48.25 kJ / mol。根据实验数据和文献，开发了生物反硝化过程的模型，并使用交替微分法（ID算法）将其确定为零级模型。

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