Page 214 - 《精细化工》2023年第9期

·2062· 精细化工 FINE CHEMICALS 第 40 卷

从表 4 可以得出，将 1 t 天然黄铁矿加工成改性 [5] GE X, CAO X, SONG X, et al. Bioenergy generation and
simultaneous nitrate and phosphorus removal in a pyrite-based
黄铁矿需要 605.365 元，考虑到改性黄铁矿均在实
constructed wetland-microbial fuel cell[J]. Bioresource Technology,
验室条件下制备，如果实际扩大规模投入生产，工 2020, 296: 122350.
厂在粉碎、干燥、混合煅烧等制备阶段可以使用大 [6] HU Y, WU G, LI R, et al. Iron sulphides mediated autotrophic
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型仪器进行大批量的产出从而节约耗电成本。根据 and sustainable wastewater treatment[J]. Water Research, 2020, 179:
实验可以得到改性黄铁矿回收率约为 28%，回收后 115914.
[7] GE Z, WEI D, ZHANG J, et al. Natural pyrite to enhance simultaneous
改性黄铁矿可以被再次利用，节约了原料加工成本。
long-term nitrogen and phosphorus removal in constructed wetland:
综上所述，说明该实验在工况实际应用中具有较高 Three years of pilot study[J]. Water Research, 2019, 148: 153-161.
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microbial oxidation of pyrrhotite coupled to nitrate reduction[J].
黄铁矿经混合改性后转变成低结晶度的单斜磁黄铁
Water Research, 2016, 96: 32-41.
矿，且呈多孔蜂窝状结构，孔隙度较大，有利于细 [10] LI H, LI Y, GUO J, et al. Effect of calcinated pyrite on simultaneous
胞与矿物质之间更好的相互作用，具有更好的固液 ammonia, nitrate and phosphorus removal in the BAF system and the
2+
Fe regulatory mechanisms: Electron transfer and biofilm properties[J].
传质和更高的黄铁矿溶解速率，从而实现了高效的 Environmental Research, 2021, 194: 110708.
脱氮速率。 [11] YANG Y, CHEN T, MORRISON L, et al. Nanostructured pyrrhotite
–
（2）通过动力学分析可知，NO 3 -N 去除率与改 supports autotrophic denitrification for simultaneous nitrogen and
phosphorus removal from secondary effluents[J]. Chemical Engineering
性黄铁矿添加量存在正比关系。单因素实验中，在 Journal, 2017, 328: 511-518.
–
平均粒径为 200 nm、投加量 500 mg/L、NO 3 -N 初始 [12] PERCAK-DENNETT E, HE S, CONVERSE B, et al. Microbial
acceleration of aerobic pyrite oxidation at circumneutral pH[J].
质量浓度为 18.50 mg/L、pH=7.0、温度为 35 ℃的 Geobiology, 2017, 15(5): 690-703.
–
条件下，改性黄铁矿的脱氮性能达到最佳，NO 3 -N [13] CHIRITA P, RIMSTIDT J D. Pyrrhotite dissolution in acidic
media[J]. Applied Geochemistry, 2014, 41: 1-10.
去除率为 98.10%，脱氮速率为 24.20 mg/(L·h)，当 [14] TONG S, RODRIGUEZ-GONZALEZ L C, PAYNEK A, et al. Effect
–
NO 3 -N 初始质量浓度大于 33 mg/L 时，对脱氮硫杆 of pyrite pretreatment, particle size, dose and biomass concentration
菌的反硝化作用有明显的抑制作用。 on particulate pyrite autotrophic denitrification of nitrified domestic
wastewater[J]. Environmental Engineering Science, 2018, 35(8):
（3）改性黄铁矿可以直接作为补充碳源投加在 875-886.
2
正常的生物脱氮工艺反应器池内（如 A O、SBR 和 [15] LIU Y (刘银), WANG J (王静), ZHANG M X (张明旭), et al. Research
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–
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深度脱氮效果。具体应用可根据对水质的要求确定。 new strains of Thiobacillus denitrificans under non-standard
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