FEASIBILITY OF DENITRIFICATION IN AIRLIFT-LOOP REACTORS

被引：4

作者：

HAO, XD ^{[1
]}

NIEUWSTAD, TJ ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL, SANITARY ENGN LAB, 2628 CN DELFT, NETHERLANDS

来源：

ENVIRONMENTAL TECHNOLOGY | 1994年 / 15卷 / 02期

关键词：

DENITRIFICATION; AIRLIFT-LOOP REACTOR; CARRIER; BIOFILM; ANOXIC LAYER;

D O I：

10.1080/09593339409385415

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Simultaneous carbonaceous oxidation, nitrification and denitrification are possible in biofilm systems, and so in theory must be feasible in an airlift-loop reactor. A pilot-scale experiment demonstrated that at a hydraulic retention time (HRT) of 1.5 h a nitrogen removal of 70 - 80 % would be realized. The total Kjeldahl nitrogen (TKN) in influent was 46 gN m-3 on the average; the average biomass concentration (volatile solids) in the reactor was 22 kg m-3. This finding makes airlift-loop reactors interesting and competitive for nitrogen removal compared to conventional low-loaded activated sludge systems.

引用

页码：155 / 163

页数：9

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