杨凤林
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曝气量对SBAR中好氧颗粒污泥特性的影响
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Indexed by:期刊论文

Date of Publication:2008-06-15

Journal:环境科学

Included Journals:PubMed、PKU、ISTIC、CSCD

Volume:29

Issue:6

Page Number:1598-1603

ISSN No.:0250-3301

Key Words:好氧颗粒;曝气量;胞外聚合物(EPS);气提式间歇反应器(SBAR)

Abstract:采用SBAR反应器对比研究了颗粒化后表观气速为1.8 cm·s-1和0.9cm·s-1时对成熟好氧颗粒污泥形态结构、粒径、强度等物理特性和硝化性能以及胞外聚合物代谢的影响.结果表明,颗粒化后降低曝气量增加颗粒形态不规则程度,空隙增大;55d试验中,与高曝气量下相比,降低曝气量使表观污泥产率提高33%,颗粒粒径平均增长速率提高25%,相对颗粒强度降低6%, EP5含量平均降低12%.两反应器颗粒污泥SVI值均在10~15 mL·g-1,沉降性能良好,且均具有良好硝化性能和降解COD能力.与高曝气量下相比,低曝气量下硝化菌群活性低,而异养菌活性高.

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Gender:Male

Alma Mater:大连工学院

Degree:Master's Degree

School/Department:环境学院

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