EFFECT OF HIGH CONCENTRATION PHOSPHORUS ON ANAEROBIC AMMONIA OXIDATION PERFORMANCE AND GRANULAR SLUDGE PROPERTY
-
摘要: 为了研究高浓度磷对厌氧氨氧化效能和污泥特性的影响,采用UASB反应器进行连续试验,考察不同磷浓度时的Anammox脱氮效能,并通过扫描电镜和能谱分析技术对颗粒污泥表面形态和元素组成分析。结果表明:磷浓度达到600 mg/L时开始抑制厌氧氨氧化脱氮效能,700 mg/L对Anammox脱氮效能造成91.86%的抑制,降低磷浓度培养10 d后完全恢复;随着进水磷浓度的增加,反应器对磷的截留率减小;高浓度磷导致反应器底部颗粒污泥表面形成白色固体,为由C、O、P和Ca构成羟基磷灰石和磷酸钙等难溶化合物,能谱分析结果显示,该固体中O、P、C和Ca原子数量分别占41.89%、21.78%、14.41%和10.82%。Abstract: In order to study the effect of high concentration of phosphorus on anammox efficiency and sludge characteristics, a UASB reactor was used for continuous test to investigate the nitrogen removal efficiency of anammox at different phosphorus concentrations. The surface morphology and element composition of granular sludge were analyzed by SEM and EDS. The results showed that: when the phosphorus concentration reached 600 mg P/L, it began to inhibit the nitrogen removal efficiency of ANAMMOX, and 700 mg P/L inhibited 91.86% of the nitrogen removal efficiency of Anammox; NRR recovered completely after 10 days of phosphorus reduction; with the increase of phosphorus concentration in the influent, the retention of phosphorus in the reactor decreased. The high concentration of P resulted in the formation of white solid on the surface of granular sludge at the bottom of the reactor, which was composed of C, O, P and Ca, insoluble compounds such as hydroxyapatite and calcium phosphate. The results of EDS showed that the number percentage of O, P, C and Ca atoms in the solid was 41.89%, 21.78%, 14.41% and 10.82%, respectively.
-
Key words:
- anammox /
- phosphorus /
- granular sludge /
- solid matter
-
GASA N P, NNADOZIE C F, KOSGEY K, et al. Effect of ammonium to nitrite ratio on reactor performance and microbial population structure in anammox reactors[J]. Environmental Technology, 2020,41(26):3396-3411. JIN R C,YANG G F,YU J J,et al. The inhibition of the Anammox process:a review[J]. Chemical Engineering Journal,2012, 197(15):67-79. VAN D E GRAAF A A, BRUIJN P, ROBERTSON L A, et al. Autotrophic growth of anaerobic ammonium-oxidizing micro-organisms in a fluidized bed reactor[J]. Microbiology, 1996, 142(8):2187-2196. EGLI K, FANGER U, ALVAREZ P J J, et al. Enrichment and characterization of an anammox bacterium from a rotating biological contactor treating ammonium-rich leachate[J]. Archives of Microbiology, 2001, 175(3):198-207. PYNAERT K, SMETS B F, WYFFELS S, et al. Characterization of an Autotrophic Nitrogen-Removing Biofilm from a Highly Loaded Lab-Scale Rotating Biological Contactor[J]. Applied and Environmental Microbiology, 2003, 69(6):3626-3635. CARVAJAL-ARROYO J M, SUN W J, SIERRA-ALVAREZ R, et al. Inhibition of anaerobic ammonium oxidizing (anammox) enrichment cultures by substrates, metabolites and common wastewater constituents[J]. Chemosphere, 2013, 91(1):22-27. ZHANG Z Z, HU H Y, XU J J, et al. Effects of inorganic phosphate on a high-rate anammox system:Performance and microbial community[J]. Ecological Engineering, 2017, 101:201-210. 周正, 刘凯, 王凡, 等. 磷酸盐对厌氧氨氧化活性污泥脱氮效能的影响[J]. 环境科学, 2017,38(6).2453-2460. 鲍林林, 李刚强, 李冬, 等. 常温低基质下磷对厌氧氨氧化反应的影响[J]. 环境工程学报, 2013, 7(11):4389-4392. DEVAI I, FELFÖLDY L, WITTNER I, et al. Detection of phosphine:new aspects of the phosphorus cycle in the hydrosphere[J]. Nature, 1988, 333(6171):343. 徐亚同. 废水中氮磷的处理[M]. 上海:华东师范大学出版社, 1996:114-170. 国家环境保护总局.水和废水监测分析方法编委会. 水和废水监测分析方法[M]. 4版.北京:中国环境科学出版社,2002. 张锦耀, 周少奇, 袁金鹏, 等. 磷酸盐对高基质厌氧氨氧化反应器脱氮性能的影响[J]. 环境工程学报, 2016, 10(8):4061-4066. 王俊安, 李东, 田智勇, 等.常温下磷酸盐对城市污水厌氧氨氧化的影响[J]. 中国给水排水, 2009, 25(19):31-33,36. 姚海楠, 张立秋, 李淑更, 等. 厌氧铁氨氧化处理模拟垃圾渗滤液的影响因素研究[J]. 环境科学学报, 2019, 39(9):2953-2963. LIN Y M, LOTTI T, SHARMA P K, et al. Apatite accumulation enhances the mechanical property of anammox granules[J]. Water Research, 2013, 47(13):4556-4566. TRIGO C, CAMPOS J L, GARRIDO J M, et al. Start-up of the Anammox process in a membrane bioreactor[J]. Journal of Biotechnology, 2006, 126(4):475-487. DOYLE J D, PARSONS S A. Struvite formation, control and recovery[J]. Water Research, 2002, 36(16):3925-3940. VAN NIFTRIK L, GEERTS W J C, VAN DONSELAAR E G, et al. Linking ultrastructure and function in four genera of anaerobic ammonium-oxidizing bacteria:cell plan, glycogen storage, and localization of cytochrome c proteins[J]. Journal of Bacteriology, 2008, 190(2):708-717. 黄鹏飞, 张锦耀, 秦玉洁, 等.高流速启动ANAMMOX-UASB反应器及其脱氮特性[J]. 中国给水排水, 2014, 30(17):9-13. NEUMAN W F, NEUMAN M W. Recent advances in bone growth and nutrition[J]. Bordens Review of Nutrition Research, 1960, 21:37-60. MA H Y, ZHANG Y L, XUE Y, et al. A new process for simultaneous nitrogen removal and phosphorus recovery using an anammox expanded bed reactor[J]. Bioresource Technology, 2018, 267:201-208.
点击查看大图
计量
- 文章访问数: 115
- HTML全文浏览量: 18
- PDF下载量: 9
- 被引次数: 0