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Int. J. Environ. Res. Public Health 2018, 15(6), 1280; https://doi.org/10.3390/ijerph15061280

Short-Term Effects of Tourmaline on Nitrogen Removals and Microbial Communities in a Sequencing Batch Reactor at Low Temperatures

1
School of Environment Harbin Institute of Technology, No. 73, the Yellow River Road, Nangang District, Harbin 150090, China
2
State Laboratory of Urban Water Resources and Environment Harbin Institute of Technology, No. 73, the Yellow River Road, Nangang District, Harbin 150090, China
3
Heilongjiang Provincial Environmental Science Research Institute, Harbin 150056, China
*
Author to whom correspondence should be addressed.
Received: 30 March 2018 / Revised: 1 June 2018 / Accepted: 14 June 2018 / Published: 17 June 2018
(This article belongs to the Section Environmental Science and Engineering)
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Abstract

Tourmaline is a ring borosilicate with unique pyro-electricity and piezoelectricity values. Non-gem tourmaline is usually used as an environmental material. The short-term effects of ultrafine tourmaline particles on nitrogen removal performs microbial population dynamics. Key functional species in a sequencing batch reactor were investigated at 9 ± 1 °C. The investigation results showed that 1 g·L−1 ultrafine tourmaline particles could resist the effect of temperature shock on the metabolism of NH4+-N and were beneficial to the restoration of the metabolism capacity of NH4+-N. 1 g·L−1 ultrafine tourmaline particles, which increased the oxidation rate of NH4+-N in the aerobic phase, the formation rate of NO3-N in the aerobic phase, and the denitrification rate in the hypoxia phase at low temperatures. However, the community richness or diversities were not changed after short-term exposure to 1 g·L−1 ultrafine tourmaline particles at low temperatures and 1 g·L−1 ultrafine tourmaline particles could not change the relative abundances of functional microbes except nitrite oxidizing bacteria. View Full-Text
Keywords: low temperatures; microbial community; nitrogen removal; tourmaline low temperatures; microbial community; nitrogen removal; tourmaline
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Han, Y.; Qiu, S.; Zeng, H.; Ma, F.; Wang, J.; Qiu, Y.; An, X. Short-Term Effects of Tourmaline on Nitrogen Removals and Microbial Communities in a Sequencing Batch Reactor at Low Temperatures. Int. J. Environ. Res. Public Health 2018, 15, 1280.

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