臭氧作为上流式厌氧污泥床（UASB）处理后的食品加工废水预处理和后处理选项的效果。

The efficacy of ozone as a pre- and post-treatment option for UASB-treated food processing wastewaters.

作者信息

Sigge G O, Britz T J, Fourie P C, Barnardt C A

机构信息

Department of Food Science, University of Stellenbosch, Private Bag Xl, Matieland, 7602, South Africa.

出版信息

Water Sci Technol. 2005;52(1-2):167-73.

PMID:16180424

Abstract

The efficiency of ozone as a pre- and post-treatment to UASB treatment was investigated, followed by a study into UASB reactor performance with ozonated wastewater as substrate. Combinations of pre- and/or post-ozonation with UASB treatment gave better results than ozonation or UASB alone and COD reductions of 53.0-98.9% were achieved for treatment of canning and winery wastewaters. A UASB reactor was fed with pre-ozonated cannery wastewater for over 70 d. COD removal improved from between 58.8 and 64.4% to between 85.3 and 91.8% after pre-ozonated substrate feed commenced. Subsequent increases in organic loading rate (OLR) from 2.4 to 3.4 kgCOD m(-3) x d(-1) did not affect reactor performance. By including a final post-ozonation treatment to this UASB effluent a total COD reduction of 99.2% was achieved.

摘要

研究了臭氧作为上流式厌氧污泥床（UASB）处理的预处理和后处理的效率，随后研究了以臭氧氧化废水为底物时UASB反应器的性能。与单独的臭氧化或UASB处理相比，UASB处理前和/或后进行臭氧化的组合产生了更好的结果，并且在处理罐头厂和酿酒厂废水时实现了53.0 - 98.9%的化学需氧量（COD）降低。一个UASB反应器用预臭氧化的罐头厂废水进料超过70天。在开始进料预臭氧化底物后，COD去除率从58.8%至64.4%提高到85.3%至91.8%。随后有机负荷率（OLR）从2.4增加到3.4 kgCOD m(-3)×d(-1)并未影响反应器性能。通过对该UASB流出物进行最终的后臭氧化处理，实现了99.2%的总COD降低。