Abstract：
:Incomplete denitrification and ammonia accumulation were found to cause proliferation of filamentous microorganisms in sequencing batch reactors (SBRs) for swine wastewater treatment. Foaming was observed in response to the accumulation of 115.2 and 12.2 mg/L of nitrate and ammonia, respectively. The mixed liquor suspended solids (MLSS) level in SBRs was decreased to 2,000 mg/L and the suspended solids in the effluent reached 200 mg/L when foaming appeared. However, the use of swine waste as an external carbon source for enhanced biological nitrogen removal was found to effectively control the foaming caused by filamentous microorganisms. Therefore, an optimum strategy for the addition of swine waste was designed using integrated real-time control to provide pulse input control of slurry based on the "nitrate knee" in the oxidation-reduction potential profile. In this case, the MLSS concentration was maintained at an average value of approximately 7,550 mg/L, while the SS in the effluent was less than 30 mg/L.
journal_name
Bioprocess Biosyst Engjournal_title
Bioprocess and biosystems engineeringauthors
Chen M,Kim JH,Yang M,Wang Y,Kishida N,Kawamura K,Sudo Rdoi
10.1007/s00449-009-0332-ysubject
Has Abstractpub_date
2010-03-01 00:00:00pages
355-62issue
3eissn
1615-7591issn
1615-7605journal_volume
33pub_type
杂志文章abstract：:L-aspartate ammonia-lyase from Bacillus sp. YM55-1 (AspB, EC 4.3.1.1) catalyzes the reversible conversion of L-aspartate (Asp) into fumarate and ammonia with a high specific activity toward the substrate. AspB was expressed in Escherichia coli and partially purified by heat precipitation and saturation with ammonium s...
journal_title：Bioprocess and biosystems engineering
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pub_type： 杂志文章
doi：10.1007/s00449-011-0523-1
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journal_title：Bioprocess and biosystems engineering
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journal_title：Bioprocess and biosystems engineering
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更新日期：2013-11-01 00:00:00
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journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
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journal_title：Bioprocess and biosystems engineering
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journal_title：Bioprocess and biosystems engineering
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journal_title：Bioprocess and biosystems engineering
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journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章,评审
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更新日期：2019-06-01 00:00:00
