中国甜菜糖业Issue(4)：23-30,8.DOI:10.3969/j.issn.1002-0551.2018.04.005
改性UCT工艺处理糖蜜废水中营养物去除的补救措施
The Remedial Measure for Deterioration of Nutrient Removal in the Modified UCT Process with Molasses Wastewater
摘要
Abstract
The pilot scale modified UCT with step-feed method was obtained a good performance in the nutrient removal when the ratio of step-feed was shifting to 35％ ∶35 ∶ ％ ∶30％,the corresponding NH4-N +,TN and PO43—P was increased to optimal 97.3％,81.8％,and 89.56％ respectively.At the optimal ratio of step-feed,the whole nutrient was transformed into deteriorating state owing to lower COD/TN.By reducing the DO concentration to 0.7-1.0 mg/L in the three aerobic zones to stimulate the SND simply relieved the exacerbation in nitrogen removal not for phosphorus removal.The ratio of step-feed was changed from 35％ ∶35％ ∶30％ to 45％ ∶35∶20％ to increase carbon source in anaerobic zone for improving phosphorus removal on the foundation of changing the state of SND a few (recovery the DO concentration to 2 mg/L in aerobic zone 2).As a result,the whole removing efficiency of phosphorus and TN were recovery to averagely 61.3％ and 66.8％,the SVI was recovery from state of exception thanks to enhancing the activity of filamentous bacteria caused by low DO and few carbon source.关键词
分批进料/同步硝化反硝化/污泥体积指数(Ⅵ)/营养物去除Key words
step-feed/simultaneous nitrification and denitrification/Sludge volume index (SVI)/nutrient removal分类
农业科技引用本文复制引用
Devi Muhtariana,张伊帆,郝鑫,李永峰..改性UCT工艺处理糖蜜废水中营养物去除的补救措施[J].中国甜菜糖业,2018,(4):23-30,8.基金项目
黑龙江省自然科学基金(2013E54) （2013E54）
全国大学生创新项目(201810225114). （201810225114）
