树脂基微生物载体强化硫自养反硝化脱氮效果研究
Journal: Ecological Environment and Protection DOI: 10.12238/eep.v8i3.2572
Abstract
本文提出了一种基于树脂基微生物载体强化硫自养反硝化脱氮效果的方法,探究了树脂骨架结构和官能团类型对树脂基微生物载体-自养反硝化体系脱氮效果的影响规律。结果表明,具有聚丙烯酸骨架和季铵基的D730树脂相较于聚苯乙烯骨架和叔胺基表现出更强的正电性,有助于通过静电相互作用吸附硝酸盐氮(NO3--N)和硫代硫酸根(S2O32-)。同时微生物群落分析表明,树脂基微生物载体提高了体系中Thiobacillus属的相对丰度,尤其在D730树脂体系下,其相对丰度高达44.64%,这种微生物群落的变化很可能是Bio-D730体系脱氮性能显著提升的关键原因,导致D730树脂基微生物载体强化硫自养反硝化呈现出最佳的脱氮性能。总之,本文为基于树脂基微生物载体-硫自养反硝化体系高效处理低浓度NO3--N提供技术支撑和理论参考,在污水处理厂二级出水深度脱氮中具有良好的应用前景。
Keywords
硫自养反硝化；微生物载体；生物脱氮；污水处理；菌群分析
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[9] Chen X.,Yang L.,Chen F.,et al.High efficient bio-denitri fication of nitrate contaminated water with low ammonium and sulfate production by a sulfur/pyrite-based bioreactor[J]. Bioresource Technology,2022,346:126669.
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[12] Korak J.A.,Mungan A. L.,Watts L.T.Critical review of waste brine management strategies for drinking water trea tment using strong base ion exchange[J].Journal of Hazardous Materials,2023,441:129473.
[13] Xu S.,Yan Y.,Shuang C.,et al.Biological magnetic ion ex change resin on advanced treatment of synthetic wastewater [J].Bioresource Technology,2023,372:128613.
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[15] Tansel B Significance of thermodynamic and physical characteristics on permeation of ions during membrane sepa ration: Hydrated radius, hydration free energy and viscous effects[J].Separation and Purification Technology,2012,86:119-126.
[16] Huang S.,Yu D.,Chen G.,et al.Realization of nitrite accumulation in a sulfide-driven autotrophic denitrification process: Simultaneous nitrate and sulfur removal[J].Chemosph ere,2021,278:130413.
[17] Zimmermann K.,Sampara P.,Ziels R.,et al. Biological contributions to biological ion exchange[J].Environmental Science Water Research & Technology,2024,10(4):877-888.
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[23] Gilbert P.,Moore L.E.Cationic antiseptics: Diversity of action under a common epithet[J].Journal of Applied Micro biology,2005,99(4):703-715.
[24] Jiménez-Munguía Irene,Volynsky P.E.,Batishchev O.V.,et al.Effects of sterols on the interaction of SDS,benzalkon ium chloride, and a novel compound, Kor105, with membranes[J].Biomolecules,2019,9(627):1-21.
[25] Pharand L.,Van M.,Anderson W.B.,et al.Assessment of biomass in drinking water biofilters by adenosine triphosphate [J].Journal American Water Works Association,2014,106(10):433-444.
[26] Wang Y.,Bott C.,Nerenberg R.Sulfur-based denitrifica tion:Effect of biofilm development on denitrification fluxes [J].Water Research,2016,100:184-193.
[27] Zhang Y.,Fang F.,Qian X.,et al.Semiconductor biohybri ds for enhanced bifunctional wastewater sulfur and heavy metal removal[J].Green Chemistry,2024,26(7):3940-3948.
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