School of Environmental Science and Engineering, Shandong University, Jinan 250100, Shandong, China.
Bioresour Technol. 2012 Jun;113:280-7. doi: 10.1016/j.biortech.2012.01.117. Epub 2012 Jan 30.
Bioaugmentation was applied by introducing marine halophilic bacteria into an intermittently aerated biological filter (IABF) to improve the removal of nutrient pollutants from hypersaline synthetic wastewater (salinity: 3-13%). The bio-enhanced IABF showed improved performance on nutrient removal in the salinity range of 4-10% compared with the control IABF. The enhancement of eliminating chemical oxygen demand, total nitrogen and total phosphorus peaked at salinities of 7-10%, 7-9% and 5-7%, respectively, where the corresponding removal efficiencies were increased by about 8.6%, 15.7% and 17.3%, respectively. Inoculation with marine bacteria improved the degradation of nitrogenous organics and denitrification in nitrogen transformation. In hypersaline environments biofilter recovery after backwashing was significantly prolonged whereas the time required in the bio-augmented IABF was comparatively short. The results of dehydrogenase activity assays demonstrated that inoculation with marine bacteria improved the activity of biofilm in hypersaline environments.
生物强化通过向间歇曝气生物滤池（IABF）中引入海洋嗜盐菌来提高从高盐合成废水中去除营养污染物的能力（盐度：3-13%）。与对照 IABF 相比，生物强化的 IABF 在 4-10%的盐度范围内表现出更好的养分去除性能。在 7-10%、7-9%和 5-7%的盐度下，去除化学需氧量、总氮和总磷的效率分别提高了约 8.6%、15.7%和 17.3%。接种海洋细菌提高了氮转化过程中含氮有机物的降解和反硝化作用。在高盐环境中，反冲洗后的生物滤池恢复时间明显延长，而生物强化 IABF 所需的时间相对较短。脱氢酶活性测定的结果表明，接种海洋细菌提高了生物膜在高盐环境中的活性。
