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Rapid cultivation and simultaneous denitrification of micro-aerobic granular sludge
Author(s): Liu Xiao, Cao Guoping
Pages: 37-
40
Year: 2012
Issue:
8
Journal: Industrial Water Treatment
Keyword: 颗粒污泥膨胀床反应器; 微氧颗粒污泥; 同步脱氮; 充氧速率;
Abstract: 采用颗粒污泥膨胀床反应器接种剩余污泥,以生活污水为基质,在1个月内快速培养成功微氧颗粒污泥.污泥平均粒径达0.73 mm,沉降迅速,具有较好的COD去除和同步脱氮能力.在HRT=6h,回流比为8.0,充氧速率为0.25 g/(L·d)时,反应器COD去除率可达90%左右,出水COD<50 mg/L;氨氮和总氮去除率分别为72%~89%和76%~87%,出水质量浓度分别为3~12、5~14 mg/L.回流稀释和充氧速率对微氧体系同步脱氮产生重要影响.
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