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负荷及盐度对好氧颗粒污泥EPS的影响

Keywords: 好氧颗粒污泥,EPS,SOUR,孔隙率,生物活性

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Abstract:

研究了序批式反应器(SBR)内好氧颗粒污泥在不同有机负荷(1.6kgCOD/(m3·d)和8kgCOD/(m3·d))和不同含盐(2.5%和5.0%)条件下胞外聚合物(EPS)的变化情况,并对EPS、比耗氧速率(SOUR)和孔隙率之间的关系作了进一步探讨。结果表明:在SBR反应器中,负荷较含盐量对好氧颗粒污泥EPS变化的影响要显著,且EPS糖成分和SOUR之间、EPS蛋白成分和孔隙率之间均呈负相关。另外,高负荷条件下的系统稳定性要优于低负荷。

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