Nitrogen Removal with Aerobic Granules - Effect of Dissolved Oxygen and Carbon/Nitrogen Ratio

被引：1
|
作者：
Galant, M. [1 ]
Grgas, D. [2 ]
Stefanac, T. [2 ]
Habuda-Stanic, M. [3 ]
Dragicevic, T. Landeka [2 ]
机构：
[1] Usluga Odvodnja Doo, Sime Kurelica 22, Pazin 52000, Croatia
[2] Univ Zagreb, Fac Food Technol & Biotechnol, Pierottijeva Ulica 6, Zagreb 10000, Croatia
[3] JJ Strossmayer Univ Osijek, Fac Food Technol Osijek, F Kuhaca 18, Osijek 31000, Croatia
来源：
KEMIJA U INDUSTRIJI-JOURNAL OF CHEMISTS AND CHEMICAL ENGINEERS | 2023年 / 72卷 / 1-2期
关键词：
Aerobic granules; COD removal; N removal; sodium acetate; synthetic wastewater; SEQUENCING BATCH REACTOR; PHOSPHORUS REMOVAL; WASTE-WATER; SHEAR FORCE; SIMULTANEOUS NITRIFICATION; MICROBIAL COMMUNITY; COD/N RATIO; N-REMOVAL; SLUDGE; STABILITY;
D O I：
10.15255/KUI.2022.034KUI-3/2023
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nitrogen removal efficiency related to the dissolved oxygen (DO) concentration (DO 1-7 mg l-1), carbon/nitrogen ratio (COD/N 1-14), and the effect of airflow (0.4-2.9 l min-1) related to the granule size were investigated. The average chemical oxygen demand (COD) removal of =90 % was achieved at COD/N =11, but the satisfactory N values in effluent for discharge into the surface waters were almost achieved at COD/N 14. DO of 2 mg l(-1) is recommended for efficient removal of N and COD with mature granules. The size (diameter) of the granules decreases with increased airflow.
引用
收藏
页码：25 / 32
页数：8
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