Abstract：
:Activated sludge granules and flocs have their inherent advantages and disadvantages for wastewater treatment due to their different characteristics. So far quantitative information on their evaluation is still lacking. This work provides a quantitative and comparative evaluation on the characteristics and pollutant removal capacity of granules and flocs by using a new methodology through integrating fuzzy analytic hierarchy process, accelerating genetic algorithm and entropy weight method. Evaluation results show a higher overall score of granules, indicating that granules had more favorable characteristics than flocs. Although large sized granules might suffer from more mass transfer limitation and is prone to operating instability, they also enable a higher level of biomass retention, greater settling velocity and lower sludge volume index compared to flocs. Thus, optimized control of granule size is essential for achieving good pollutant removal performance and simultaneously sustaining long-term stable operation of granule-based reactors. This new integrated approach is effective to quantify and differentiate the characteristics of activated sludge granules and flocs. The evaluation results also provide useful information for the application of activated sludge granules in full-scale wastewater treatment plants.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Fang F,Qiao LL,Ni BJ,Cao JS,Yu HQdoi
10.1038/srep42910subject
Has Abstractpub_date
2017-02-17 00:00:00pages
42910issn
2045-2322pii
srep42910journal_volume
7pub_type
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2016-06-20 00:00:00
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2018-04-04 00:00:00
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pub_type： 杂志文章
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更新日期：2015-10-27 00:00:00
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更新日期：2018-05-18 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2017-01-04 00:00:00
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pub_type： 杂志文章
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更新日期：2017-02-02 00:00:00
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pub_type： 杂志文章
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更新日期：2019-07-25 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep06785
更新日期：2014-10-30 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-07537-6
更新日期：2017-09-06 00:00:00
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pub_type： 杂志文章
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更新日期：2020-02-03 00:00:00
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2017-08-11 00:00:00
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pub_type： 杂志文章
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更新日期：2020-11-19 00:00:00
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更新日期：2018-05-29 00:00:00
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pub_type： 临床试验,杂志文章
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更新日期：2019-06-19 00:00:00
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更新日期：2020-04-16 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-32211-w
更新日期：2018-09-18 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2020-01-16 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2016-01-07 00:00:00
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更新日期：2017-02-01 00:00:00
