Abstract：
:Although nitrite effect on enhanced biological phosphorus removal (EBPR) has been previously studied, very limited research has been undertaken about the effect of nitrite accumulation caused by nitritation on EBPR. This paper focused on nitrite effect from nitritation on EBPR in a sequencing batch reactor treating domestic wastewater. Results showed that nitrite of below 10mg/L did not inhibit P-uptake and release; whereas EBPR deterioration was observed when nitrite accumulation reached 20mg/L. Due to P-uptake prior to nitritation, nitrite of 20mg/L has no effect on aerobic P-uptake. The main reason leading to EBPR deterioration was the competition of carbon source. Batch tests were conducted to investigate nitrite effect on anaerobic P-release. Under sufficient carbon source, nitrite of 30 mg/L had no impact on poly-β-hydroxyalkanoate (PHA) storage; contrarily, under insufficient carbon source, denitrifiers competing for carbon source with phosphorus accumulating organisms resulted in decrease of PHA synthesis and P-release.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zeng W,Yang Y,Li L,Wang X,Peng Ydoi
10.1016/j.biortech.2011.03.091subject
Has Abstractpub_date
2011-06-01 00:00:00pages
6657-64issue
12eissn
0960-8524issn
1873-2976pii
S0960-8524(11)00448-2journal_volume
102pub_type
杂志文章abstract：:Maintenance of stable pH during pyrite-oxidizing denitrification process is important. Here, we demonstrated effective pH control (7.80 ± 0.20-8.40 ± 0.30) in an electrochemical-H2 and pyrite-oxidizing denitrifying bioreactor (HPR) through in situ electrohydrogenesis. HPR achieved a higher nitrate removal activity (ma...
journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2019-06-01 00:00:00
abstract：:Different alternative configurations and strategies for the simultaneous biological removal of organic matter and nutrients (N and P) in wastewater have been proposed in the literature. This work demonstrates a new successful strategy to bring in enhanced biological phosphorus removal (EBPR) to a conventional nitrific...
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pub_type： 杂志文章
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更新日期：2011-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2012-11-01 00:00:00
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更新日期：2011-01-01 00:00:00
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更新日期：2016-05-01 00:00:00
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更新日期：2014-06-01 00:00:00
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更新日期：2020-01-01 00:00:00
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更新日期：2013-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2020-10-01 00:00:00
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更新日期：2012-09-01 00:00:00
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更新日期：2014-06-01 00:00:00
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journal_title：Bioresource technology
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更新日期：2012-07-01 00:00:00
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