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| Effect of Fe3+ on Physicochemical Properties of Aerobic Activated Sludge during Domestication by Pulping Middle-stage Effluent |
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| DOI：10.11981/j.issn.1000-6842.2015.04.18 |
| Key Words:Fe3+; pulping middle-stage effluent; aerobic activated sludge; domestication; physicochemical property |
| Fund Project:广东省省部(院)产学研结合项目(2013B090900001)；国家级大学生创新创业训练计划项目(201410426049)；制浆造纸工程国家重点实验室开放基金项目(201474)。 |
| Author Name | Affiliation | | 兰善红1 | 1.东莞理工学院化学与环境工程学院,广东东莞,523808 | | 李慧洁2 | 2.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 王传路3 | 3.青岛科技大学化工学院,山东青岛,266042 | | 耿士文2 | 2.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 蓝惠霞2,* | 2.青岛科技大学环境与安全工程学院,山东青岛,266042 | | 张 恒3,4 | 3.青岛科技大学化工学院,山东青岛,266042；4.华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 | | 王晓红2 | 2.青岛科技大学环境与安全工程学院,山东青岛,266042 |
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| Abstract: |
| The changes of physicochemical properties of aerobic activated sludge for pulping middle-stage effluent treatment including mixed liquid suspended solid(MLSS), extracellular polymer substances(ECPs) content, ratio of protein(PN) and polysaccharide(PS), sludge volume index(SVI) during domestication were studied. The results showed that MLSS and PN/PS ratio of the system with Fe3+were higher than that of the blank control, while SVI was lower. ECPs content of the system with Fe3+ was higher in the earlier stage, but lower in the later period compared to the blank control. The settleability and flocculating performance of the sludge with Fe3+were better than that of the blank control. |
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