Characteristics and Performance of Embedded ANAMMOX Bacteria in Treating Saline Wastewater

被引：0
|
作者：
Shan X.-J. [1 ]
Yu D.-S. [1 ]
Li J. [1 ]
Chen G.-H. [1 ]
Feng L. [1 ]
Lü T.-T. [1 ]
Shao Q. [1 ]
机构：
[1] School of Environmental Science and Engineering, Qingdao University, Qingdao
来源：
Huanjing Kexue/Environmental Science | 2018年 / 39卷 / 04期
关键词：
ANAMMOX; Hofmeister effect; Immobilization; Nitrogen removal; Wastewater containing seawater;
D O I：
10.13227/j.hjkx.201706159
中图分类号：
学科分类号：
摘要：
In order to improve the mechanical stability of the material, the embedded raw material combination was studied in the experiment, and seawater was added to optimize the performance of the material. The results indicated that the optimal material ratio was polyvinyl alcohol (PVA 125 g•L-1)-alginate sodium (SA 20 g•L-1)-activated carbon (40 g•L-1). The curing time was 18 h. After adding seawater, the beads were found to have larger pore sizes inside, and the pores were distributed unevenly because of the Hofmeister effect. At the same time, the mechanical stability and biological capacity were found to be significantly higher than those of the fresh water group. The Raman spectra analysis showed that the addition of seawater made the-OH on PVA have greater crosslinking reactions with the crosslinker. The activated sludge was used to treat wastewater containing sea water, and after an operation of 21 d, the removal rate of NH4 +-N was about 90%, and the stoichiometric ratio of ΔNH4 +-N:ΔNO2 --N:ΔNO3 --N was stable at 1:(1.04±0.1):(0.17±0.02). From the 21st day to the 46th day, the reactor was run in a steady state. When the nitrogen load rate doubled, the ammonia nitrogen removal rate and stoichiometry had little variations. The total nitrogen removal rate was about 85%, and the total nitrogen removal load rate was 0.2 kg•(m3•d)-1. © 2018, Science Press. All right reserved.
引用
收藏
页码：1677 / 1687
页数：10
相关论文
共 38 条
  • [1] Monballiu A., Desmidt E., Ghyselbrecht K., Et al., Enrichment of anaerobic ammonium oxidizing (Anammox) bacteria from OLAND and conventional sludge: features and limitations, Separation and Purification Technology, 104, pp. 130-137, (2013)
  • [2] Yin X., Qiao S., Zhou J.L., Et al., Fast start-up of the anammox process with addition of reduced graphene oxides, Chemical Engineering Journal, 283, pp. 160-166, (2016)
  • [3] Hang X.L., Gao D.W., Cong Y., Et al., Enrichment of anaerobic ammonium oxidation bacteria by expanded-granular sludge bed reactor, Chinese Journal of Biotechnology, 30, 12, pp. 1845-1853, (2014)
  • [4] Chen C.J., Zhu W.J., Huang X.X., Et al., Enrichment regulation of Anammox bacteria in the Anammox start-up process, Chinese Journal of Biotechnology, 30, 6, pp. 891-900, (2014)
  • [5] Zain N.A.M., Suhaimi M.S., Idris A., Development and modification of PVA-alginate as a suitable immobilization matrix, Process Biochemistry, 46, 11, pp. 2122-2129, (2011)
  • [6] Ali M., Oshiki M., Rathnayake L., Et al., Rapid and successful start-up of anammox process by immobilizing the minimal quantity of biomass in PVA-SA gel beads, Water Research, 79, pp. 147-157, (2015)
  • [7] Dong Y.W., Zhang Y.Q., Tu B.J., Et al., Immobilization of ammonia-oxidizing bacteria by calcium alginate, Ecological Engineering, 73, pp. 809-814, (2014)
  • [8] Zhang C.L., Wang J.J., Yang H., Review on immobilized cell technology and its application in water treatment, Technology of Water Treatment, 39, 6, pp. 1-4, (2013)
  • [9] Zhao X.L., Lan S.C., Study on the process of removing nitrogen from wastewater using immobilized nitrobacteria, Environmental Science, 20, 1, pp. 39-42, (1999)
  • [10] Li Z.R., Cells proliferation and decay of immobilized nitrifiers and nitrification characteristics, (2012)
1234