Effects of Tri-, Di- and monobutyltin on heterotrophic nitrifying bacteria from surficial estuarine sediments

1994 ◽  
Vol 27 (4) ◽  
Author(s):  
M.E. Miller ◽  
J.J. Cooney
Keyword(s):  
Estuarine Sediments ◽  
Nitrifying Bacteria ◽  
Heterotrophic Nitrifying Bacteria

Studies on influencing factors of heterotrophic nitrifying bacteria treating black and odorous water bodies

2019 ◽  
Author(s):  
Wei Wei ◽  
Mengyan Liu ◽  
Wenjun Zhang ◽  
Yonhzhi Zhao ◽  
Xiaoying Guo ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Water Bodies ◽  
Nitrifying Bacteria ◽  
Heterotrophic Nitrifying Bacteria

scholarly journals Comparison of Swine Wastewater Treatment by Microalgae and Heterotrophic Nitrifiers: Focusing on Nitrogen Removal Mechanism Revealed by Microbiological Correlation Analysis

2021 ◽  
Author(s):  
Hui Liu ◽  
Junyu Liang ◽  
Giorgos Markou ◽  
Zhaofeng Song ◽  
Jianfeng Ye
Keyword(s):  
Correlation Analysis ◽  
Nitrogen Removal ◽  
Ammonia Nitrogen ◽  
Heterotrophic Nitrification ◽  
Swine Wastewater ◽  
Nitrifying Bacteria ◽  
Nitrogen Transfer ◽  
Bacterial Strains ◽  
Removal Efficiencies ◽  
Heterotrophic Nitrifying Bacteria

Abstract Swine wastewater (SW) poses a great threat to the environment due to its high-nutrient profiles if not properly managed. Advanced biological treatment method is an efficient method to treat SW by screening potent microalgae or bacterial strains. In this study, activated sludge, nine locally isolated heterotrophic nitrification bacteria and one microalgal strain (Chlorella) were used as inoculums in treating a local SW. Their treatment efficiencies were compared, while the nitrogen removal mechanisms and microbiome profile were explored in detail. It was found that certain heterotrophic nitrification strains had a slight advantage in removing chemical oxygen demand and phosphorus from SW, with the highest removal efficiencies of 83.9% and 76.2%, respectively. The removal efficiencies of ammonia nitrogen and total nitrogen in wastewater by microalgae reached 80.9% and 66.0% respectively, which were far higher than all the heterotrophic nitrification strains. Biological assimilation was the main pathway of nitrogen conversion by microalgae and heterotrophic nitrifying bacteria; especially microalgae showed excellent biological assimilation performance. Correlation analysis showed that Comamonas was highly positively correlated with nitrogen assimilation, while Acidovorax was closely correlated with simultaneous nitrification and denitrification. This study gives a comparison of microalgae and heterotrophic nitrifying bacteria on the nitrogen transfer and transformation pathways.

Study of heterotrophic nitrifying bacteria from wastewater treatment systems treating acrylonitrile, butadiene and styrene resin wastewater

2000 ◽  
Vol 42 (3-4) ◽  
pp. 315-321 ◽  
Author(s):  
T.-L. Hu ◽  
K.T. Kung
Keyword(s):  
Wastewater Treatment ◽  
Nitrogen Sources ◽  
Nitrifying Bacteria ◽  
Nitrification Rate ◽  
Biological Wastewater Treatment ◽  
Abs Resin ◽  
Acinetobacter Sp ◽  
Heterotrophic Nitrifying Bacteria ◽  
Corynebacterium Sp ◽  
Wastewater Treatment Systems

In this study we investigated the population of heterotrophic nitrifying bacteria in three biological wastewater treatment systems treating acrylonitrile, butadiene and styrene (ABS) resin wastewater. In addition to isolating and identifying these bacteria, we examined the physiological properties of the isolates, particularly utilization of acrylonitrile and its derivatives. An enrichment process was employed to isolate heterotrophic nitrifying bacteria from sludge samples taken from three biological wastewater treatment systems. Thirteen isolates were obtained and four strains were identified as Alcaligenes sp., Acinetobacter sp., Xanthomonas sp. and Corynebacterium sp. Alcaligenes sp. and Corynebacterium sp. have already been reported as heterotrophic nitrifiers. To our knowledge, this is the first time Acinetobacter sp. and Xanthomonas sp. have been reported as heterotrophic nitrifiers. The heterotrophic nitrifying isolates used acrylonitrile and acrylamide as the sole carbon and nitrogen sources. Moreover, adding an extra carbon source enhanced the nitrification rate.

A simple screening procedure for heterotrophic nitrifying bacteria with oxygen-tolerant denitrification activity

2003 ◽  
Vol 95 (4) ◽  
pp. 409-411 ◽  
Author(s):  
Emiko Matsuzaka ◽  
Nobuhiko Nomura ◽  
Toshiaki Nakajima-Kambe ◽  
Norihisa Okada ◽  
Tadaatsu Nakahara
Keyword(s):  
Nitrifying Bacteria ◽  
Screening Procedure ◽  
Denitrification Activity ◽  
Heterotrophic Nitrifying Bacteria ◽  
Simple Screening
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