A strain of Pseudomonas sp. isolated from piggery wastewater treatment systems with heterotrophic nitrification capability in Taiwan

Jung Jeng Su, Kuang Sheng Yeh, Pin Wei Tseng

Research output: Contribution to journalArticle

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Abstract

A high concentration of NH 4 + in piggery wastewater is major problem in Taiwan. Therefore, in our study, we isolated native heterotrophic nitrifiers for piggery wastewater treatment. Heterotrophic nitrifier AS-1 was isolated and characterized from the activated sludge of a piggery wastewater system. Sets of triplicate crimp-sealed serum bottles were used to demonstrate the heterotrophic nitrifying capability of strain AS-1 in an incubator at 30°C. All serum bottles contained 80 mL medium, and the remainder of the bottle headspace was filled with pure oxygen. The experimental results showed that 2.5 ± 0.2 mmol L-1 NH 4 + was removed by 58 hours, and, eventually, 1.5 ± 0.5 mmol L-1 N2 and 0.2 ± 0.0 mmol L-1 N 2O were produced. The removal rate of NH 4 + by the strain AS-1 was 1.75 mmol NH 4 + g cell-1 h-1. This strain was then identified as Pseudomonas alcaligenes (97% identity) by sequencing its 16S rDNA and comparing it with other microorganisms. Thus, strain AS-1 displays high promise for future application for in situ NH 4 + removal from piggery wastewater.

Original languageEnglish
Pages (from-to)77-81
Number of pages5
JournalCurrent Microbiology
Volume53
Issue number1
DOIs
Publication statusPublished - Jul 2006

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Nitrification
Waste Water
Pseudomonas
Taiwan
Pseudomonas alcaligenes
Incubators
Sewage
Ribosomal DNA
Serum
Oxygen

ASJC Scopus subject areas

  • Microbiology

Cite this

A strain of Pseudomonas sp. isolated from piggery wastewater treatment systems with heterotrophic nitrification capability in Taiwan. / Su, Jung Jeng; Yeh, Kuang Sheng; Tseng, Pin Wei.

In: Current Microbiology, Vol. 53, No. 1, 07.2006, p. 77-81.

Research output: Contribution to journalArticle

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