School of Environment Harbin Institute of Technology, No. 73, the Yellow River Road, Nangang District, Harbin 150090, China.
State Laboratory of Urban Water Resources and Environment Harbin Institute of Technology, No. 73, the Yellow River Road, Nangang District, Harbin 150090, China.
Int J Environ Res Public Health. 2018 Jun 17;15(6):1280. doi: 10.3390/ijerph15061280.
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 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 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 ultrafine tourmaline particles at low temperatures and 1 g·L ultrafine tourmaline particles could not change the relative abundances of functional microbes except nitrite oxidizing bacteria.
电气石是一种环状硼硅酸盐，具有独特的热电性和压电性值。非宝石级电气石通常用作环境材料。超细电气石颗粒对脱氮性能微生物种群动态的短期影响。在 9 ± 1°C 下研究了序批式反应器中的关键功能物种。研究结果表明，1 g·L 的超细电气石颗粒可以抵抗温度冲击对 NH₄⁺-N 代谢的影响，有利于 NH₄⁺-N 代谢能力的恢复。1 g·L 的超细电气石颗粒增加了 NH₄⁺-N 在好氧阶段的氧化速率、好氧阶段 NO₃-N 的形成速率以及低温缺氧阶段的反硝化速率。然而，在低温下短期暴露于 1 g·L 的超细电气石颗粒后，群落丰富度或多样性并未发生变化，并且 1 g·L 的超细电气石颗粒除亚硝酸盐氧化菌外，不能改变功能微生物的相对丰度。
