In Situ Nitrogen Removal by a Newly Isolated Oligotrophic Aerobic Denitrifier Zoogloea Sp. N299, in Relations with Temperature and Water Pressure in a Reservoir

S. L. Zhou, Y. R. Zhang, T. L. Huang, C. H. Zhang, K. K. Fang

Abstract

A series of experiments were conducted to explore the nitrogen removal characteristics of oligotrophic aerobic denitrifier Zoogloea sp. N299 at different temperature, water pressure, inoculums conditions. In the in situ temperature gradient experiment of hard flask (without water pressure influence), the nitrate removal rate of the surface flask system reaches 99.21 %, the middle reaches 61.1 %, the bottom reaches 57.66 %, and the corresponding TN removal rate reaches 82.42 %, 38.47 % and 27.10 %, respectively, and there is no nitrite accumulation in 96 h. While in the soft flask (with water pressure influence), The TN removal rate of the surface flask reaches 36.40 %, the middle reaches 23.74 %, the bottom reaches 21.41 %. In the different inoculum experiments, the nitrate removal rate of the hard flask and soft flask systems reaches 60.81±0.68 % and 52.4±2.31 %, respectively. From all the results, the water pressure has a disadvantage to the nitrogen removal and the higher temperature, the better performance of denitrification, and there is no difference in the different inoculum experiment. It indicated that Zoogloea sp. N299 is able to achieve effectively denitrification in situ and provide a significant reference to remediate the micro-polluted reservoir water system.

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in Harvard Style

Zhou S., Zhang Y., Huang T., Zhang C. and Fang K. (2018). In Situ Nitrogen Removal by a Newly Isolated Oligotrophic Aerobic Denitrifier Zoogloea Sp. N299, in Relations with Temperature and Water Pressure in a Reservoir.In Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE, ISBN 978-989-758-344-5, pages 621-630. DOI: 10.5220/0007563806210630


in Bibtex Style

@conference{iwemse18,
author={S. L. Zhou and Y. R. Zhang and T. L. Huang and C. H. Zhang and K. K. Fang},
title={In Situ Nitrogen Removal by a Newly Isolated Oligotrophic Aerobic Denitrifier Zoogloea Sp. N299, in Relations with Temperature and Water Pressure in a Reservoir},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,},
year={2018},
pages={621-630},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007563806210630},
isbn={978-989-758-344-5},
}


in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,
TI - In Situ Nitrogen Removal by a Newly Isolated Oligotrophic Aerobic Denitrifier Zoogloea Sp. N299, in Relations with Temperature and Water Pressure in a Reservoir
SN - 978-989-758-344-5
AU - Zhou S.
AU - Zhang Y.
AU - Huang T.
AU - Zhang C.
AU - Fang K.
PY - 2018
SP - 621
EP - 630
DO - 10.5220/0007563806210630