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首页> 外文学位 >Effects of phenolic compounds on TOC and nitrogen removal from potato wastewater using anaerobic-oxic-anoxic process.
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Effects of phenolic compounds on TOC and nitrogen removal from potato wastewater using anaerobic-oxic-anoxic process.

机译：厌氧-高氧-缺氧工艺中酚类化合物对马铃薯废水中总有机碳和脱氮的影响。

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The objective of this study was to study the effect of TOC, ammonia, phenol, and 2,4-dichlorophenol on TOC removal, nitrification and denitrification rate. Experiments were conducted using anaerobic, oxic and anoxic reactors. Anaerobic reactor had volume of 500 ml and hydraulic retention time of 6 hours. Oxic reactor had volume of 1,000 ml and hydraulic retention time of 12 hours. Anoxic reactor had volume of 500 ml and hydraulic retention time of 6 hours. TOC concentrations of 100, 550 and 1,000 mg/l were used as low, medium and high concentrations respectively. Ammonia concentrations of 10, 55 and 100 mg/l were used as low, medium and high concentrations respectively. Phenol concentrations of 10, 55 and 100 mg/l were used as low, medium and high concentrations respectively. 2,4-dichlorophenol concentrations of 10, 55 and 100 mg/l were used as low, medium and high concentrations respectively. TOC was mainly removed in oxic reactor, anaerobic and anoxic reactors. Ammonia was produced in anaerobic reactor by solubilization and was mainly removed in oxic and anoxic reactors respectively. The percent TOC removal of anaerobic-oxic-anoxic reactor that treated phenol-contained wastewater was between 48.83 and 78.64 Percent. The percent TOC removal of anaerobic-oxic-anoxic reactor that treated 2,4-dichlorophenol-contained wastewater was between 69.13 and 91.89 Percent. The nitrification of oxic reactor that treated phenol-contained wastewater was between 0.36 and 4.49 mg/l-hr. The nitrification of oxic reactor that treated 2,4-dichlorophenol-contained wastewater was between 0.36 and 10.00 mg/l-hr. The denitrification of anoxic reactor that treated phenol-contained wastewater was between 0.35 and 6.17 mg/l-hr. The denitrification of anoxic reactor that treated 2,4-dichlorophenol-contained wastewater was between -225 and 9.55 mg/l-hr. When ammonia concentration increased, nitrification and denitrification rate increased, but it caused percent TOC removal decreased. When TOC concentration increased, percent TOC removal, nitrification and denitrification rate increased. Phenol caused more inhibition of TOC removal, nitrification and denitrification rate than 2,4-dichlorophenol.
机译：这项研究的目的是研究TOC，氨，苯酚和2,4-二氯苯酚对TOC去除，硝化和反硝化速率的影响。使用厌氧，氧和缺氧反应器进行实验。厌氧反应器的容量为500 ml，水力停留时间为6小时。氧气反应器的体积为1,000毫升，水力停留时间为12小时。缺氧反应器的体积为500 ml，水力停留时间为6小时。 TOC浓度分别为100、550和1,000 mg / l，分别作为低，中和高浓度。氨浓度分别为10、55和100 mg / l，分别作为低，中和高浓度。苯酚浓度分别为10、55和100 mg / l，分别作为低，中和高浓度。 2,4-二氯苯酚浓度分别为10、55和100 mg / l，分别作为低，中和高浓度。主要在氧气反应器，厌氧和缺氧反应器中去除TOC。氨在厌氧反应器中通过溶解产生，主要分别在有氧和无氧反应器中除去。处理含酚废水的厌氧-缺氧-缺氧反应器的总有机碳去除率在48.83％至78.64％之间。处理含2,4-二氯苯酚的废水的厌氧-缺氧-缺氧反应器的总有机碳去除率在69.13％至91.89％之间。处理含酚废水的含氧反应器的硝化作用介于0.36和4.49 mg / l-hr之间。处理含2,4-二氯苯酚的废水的含氧反应器的硝化作用为0.36至10.00 mg / l-hr。处理含酚废水的缺氧反应器的反硝化作用介于0.35和6.17 mg / l-hr之间。处理含2,4-二氯苯酚的废水的缺氧反应器的反硝化作用介于-225和9.55 mg / l-hr之间。当氨气浓度增加时，硝化和反硝化速率增加，但这会导致TOC去除率降低。当TOC浓度增加时，TOC去除百分率，硝化作用和反硝化率增加。苯酚比2,4-二氯苯酚对TOC的去除，硝化和反硝化速率的抑制作用更大。

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