APPLICATION OF AN UPFLOW REACTOR IN THE DENITRIFICATION STEP OF BIOLOGICAL SEWAGE PURIFICATION

被引：10

作者：

KLAPWIJK, A

JOL, C

DONKER, HJGW

机构：

[1] Department of Water Pollution Control, Agricultural University, Wageningen

来源：

WATER RESEARCH | 1979年 / 13卷 / 10期

关键词：

D O I：

10.1016/0043-1354(79)90196-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A study is made of the biological purification of sewage by the denitrification process, using an upflow reactor which does not contain any granular material for attached growth. In the experiments nitrate as such was added to the sewage. At a sludge load of about 0.18 g COD/g MLSS day, 70% purification, based on COD, was obtained. The amount of the removed COD oxidized by the nitrate was 63%. At a linear velocity through the upflow reactor of 0.12 m h-1 the sludge mass concentration was about 30g SS 1-1. Based on the results of the experimental work the application of an upflow reactor for denitrification in a new sewage purification system-called the two-sludge system with pre-denitrification-is discussed. © 1979.

引用

页码：1009 / 1015

页数：7