Denitrification Enzyme Activity in Swine Wastewater Effluent of a Nitrification/Denitrification Treatment System

2012 ◽  
Vol 55 (1) ◽  
pp. 159-165
Author(s):  
P. G. Hunt ◽  
T. A. Matheny ◽  
M. B. Vanotti ◽  
K. C. Stone ◽  
A. A. Szogi
Keyword(s):  
Enzyme Activity ◽  
Wastewater Effluent ◽  
Treatment System ◽  
Swine Wastewater ◽  
Denitrification Enzyme Activity

Denitrification Enzyme Activity in Swine Wastewater Lagoons

2007 ◽  
Author(s):  
P G Hunt ◽  
T A Matheny ◽  
K S Ro ◽  
M B Vanotti ◽  
G B Reddy
Keyword(s):  
Enzyme Activity ◽  
Swine Wastewater ◽  
Denitrification Enzyme Activity

Denitrification Enzyme Activity of Fringe Salt Marshes in New England (USA)

2004 ◽  
Vol 33 (3) ◽  
pp. 1144 ◽  
Author(s):  
Cathleen Wigand ◽  
Richard A. McKinney ◽  
Marnita M. Chintala ◽  
Michael A. Charpentier ◽  
Peter M. Groffman
Keyword(s):  
Enzyme Activity ◽  
New England ◽  
Salt Marshes ◽  
Denitrification Enzyme Activity

Indole degrading of ammonia oxidizing bacteria isolated from swine wastewater treatment system

2009 ◽  
Vol 59 (12) ◽  
pp. 2405-2410 ◽  
Author(s):  
Ping Li ◽  
Lei Tong ◽  
Kun Liu ◽  
Yanhong Wang ◽  
Yanxin Wang
Keyword(s):  
Wastewater Treatment ◽  
Biochemical Analysis ◽  
Ammonia Oxidation ◽  
Treatment System ◽  
Swine Wastewater ◽  
Ammonia Oxidizing Bacteria ◽  
16S Rdna Gene ◽  
Wastewater Treatment System ◽  
Nitrate And Nitrite ◽  
Physiological And Biochemical

Three new strains named LPA11, LPB11 and LPC24 were isolated to investigate the patterns of indole degradation and ammonia oxidation in swine wastewater from different parts of a swine wastewater treatment system by the direct spreading plate method. These three isolates were all identified as Pseudomonas putida based on 16S-rDNA gene sequences, main physiological and biochemical analysis. They were capable of decomposing 1.0 mM indole completely in 10, 16 and 18 days respectively. According to the results of HPLC and GC/MS, the possible pathway for the degradation was via oxindole, isatin and anthranilic acid. The three bacteria were capable of oxidizing ammonia, and the strains LPA11 and LPC24 were capable of effectively reducing nitrate and nitrite.

scholarly journals Comparative analysis of the composition of bacterial communities from two constructed wetlands for municipal and swine wastewater treatment

2009 ◽  
Vol 8 (1) ◽  
pp. 147-157 ◽  
Author(s):  
Paula Arroyo ◽  
Gemma Ansola ◽  
Ivan Blanco ◽  
Patricia Molleda ◽  
Estanislao de Luis Calabuig ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Community Structure ◽  
Bacterial Community ◽  
Bacterial Communities ◽  
Bacterial Community Structure ◽  
Typha Latifolia ◽  
Treatment System ◽  
Swine Wastewater ◽  
Wastewater Treatment System ◽  
Wastewater Treatment Systems

This work provides information about bacterial community structure in natural wastewater treatment systems treating different types of wastewater. The diversity and composition of bacterial communities associated with the rhizosphere of Typha latifolia and Salix atrocinerea were studied and compared among two different natural wastewater treatment systems, using the direct sequencing of the 16S ribosomal RNA codifying genes. Phylogenetic affiliations of the bacteria detected allowed us to define the main groups present in these particular ecosystems. Moreover, bacterial community structure was studied through two diversity indices. Ten identified and five non-identified phyla were found in the samples; the phylum Proteobacteria was the predominant group in the four ecosystems. The results showed a bacterial community dominated by beta-proteobacteria and a lower diversity value in the swine wastewater treatment system. The municipal wastewater treatment system presented a high diverse community in both macrophytes (Typha latifolia and Salix atrocinerea), with gamma-proteobacteria and alpha-proteobacteria, respectively, as the most abundant groups.

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