Evaluation of natural zeolite as microorganism support medium in nitrifying batch reactors: Influence of zeolite particle size

被引:18
作者
Mery, C. [2 ]
Guerrero, L. [2 ]
Alonso-Gutierrez, J. [3 ]
Figueroa, M. [3 ]
Lema, J. M. [3 ]
Montalvo, S. [4 ]
Borja, R. [1 ]
机构
[1] CSIC, Inst Grasa, Seville 41012, Spain
[2] Univ Tecn Federico Santa Maria, Dept Ingn Quim & Ambiental, Valparaiso, Chile
[3] Univ Santiago de Compostela, Dept Ingn Quim, Santiago De Compostela, Spain
[4] Univ Santiago Chile, Dept Ingn Quim, Santiago, Chile
来源
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2012年 / 47卷 / 03期
关键词
Natural zeolite; nitrification; support medium; microorganisms; particle size; MUNICIPAL WASTE-WATER; NITROGEN-REMOVAL; ORGANIC-CARBON; FLUIDIZED-BED; SIMULTANEOUS NITRIFICATION; CONSTRUCTED WETLAND; AMMONIUM NITROGEN; ACTIVATED-SLUDGE; BIOFILM REACTOR; DENITRIFICATION;
D O I
10.1080/10934529.2012.646129
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An evaluation of natural zeolite as a microorganism carrier in nitrifying reactors operated in batch mode was carried out. Specifically, the influence of zeolite particle sizes of 0.5, 1.0 and 2.0 mm in diameter on microorganism adherence to zeolite, ammonium adsorption capacity and the identification of microbial populations were assessed. The greatest amount of total biomass adhered was observed for a zeolite particle size of 1 mm (0.289 g) which was achieved on the 12th day of operation. The highest ammonium adsorption capacity was observed for a zeolite particle size of 0.5 mm, which was 64% and 31% higher than that observed for particle sizes of 1.0 and 2.0 mm, respectively. The maximum de-sorption values were also found for a zeolite particle size of 0.5 mm, although when equilibrium was reached the ammonium concentrations were similar to those observed for a zeolite particle size of 1.0 mm. It was also found that the experimental data on ammonium adsorption fitted very well to the Freundlich isotherm for the three particle sizes studied. Finally, the nitrifying reactors showed similar microbial populations independently of the particle size used as microorganism carrier. The dominant bacterial community was Gammaproteobacteria making up 80% of the total population found. Betaproteobacteria were also identified and made up 12% approx. of the total population. Ammonium Oxidant Betaproteobacteria and Nitrobacter were also detected.
引用
收藏
页码:420 / 427
页数:8
相关论文
共 42 条
[1]   COMBINATION OF 16S RIBOSOMAL-RNA-TARGETED OLIGONUCLEOTIDE PROBES WITH FLOW-CYTOMETRY FOR ANALYZING MIXED MICROBIAL-POPULATIONS [J].
AMANN, RI ;
BINDER, BJ ;
OLSON, RJ ;
CHISHOLM, SW ;
DEVEREUX, R ;
STAHL, DA .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1990, 56 (06) :1919-1925
[2]  
APHA (AMERICAN PUBLIC HEALTH ASSOCIATION), 1995, Standard Methods for the Examination of Water and Waste Water
[3]  
Atlas M.R., 2002, ECOLOGIA MICROBIANA
[4]   Ammonium nitrogen removal characteristics of zeolite media in a Biological Aerated Filter (BAF) for the treatment of textile wastewater [J].
Chang, Won-Seok ;
Tran, Hung-Thuan ;
Park, Doo-Hyun ;
Zhang, Rui-Hong ;
Ahn, Dae-Hee .
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2009, 15 (04) :524-528
[5]   Ammonia removal from aqueous solution using natural Chinese clinoptilolite [J].
Du, Q ;
Liu, SJ ;
Cao, ZH ;
Wang, YQ .
SEPARATION AND PURIFICATION TECHNOLOGY, 2005, 44 (03) :229-234
[6]   Real evidence about zeolite as microorganisms immobilizer in anaerobic fluidized bed reactors [J].
Fernandez, N. ;
Montalvo, S. ;
Fernandez-Polanco, F. ;
Guerrero, L. ;
Cortes, I. ;
Borja, R. ;
Sanchez, E. ;
Travieso, L. .
PROCESS BIOCHEMISTRY, 2007, 42 (04) :721-728
[7]   Denitrification of wastewater containing high nitrate and calcium concentrations [J].
Fernandez-Nava, Y. ;
Maranon, E. ;
Soons, J. ;
Castrillon, L. .
BIORESOURCE TECHNOLOGY, 2008, 99 (17) :7976-7981
[8]   Nitrification of polluted urban river waters using zeolite-coated nonwovens [J].
Furukawa, K ;
Ichimatsu, Y ;
Harada, C ;
Shimozono, S ;
Hazama, M .
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2000, 35 (08) :1267-1278
[9]   Effect of selected textile effluents on activated sludge nitrification process [J].
Giordano, A ;
Grilli, S ;
De Florio, L ;
Mattioli, D .
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2005, 40 (11) :1997-2007
[10]   Enhancing the removal of ammonia in nitrifying biofilters by the use of a zeolite containing expanded clay aggregate filtermedia [J].
Gisvold, B ;
Ödegaard, H ;
Föllesdal, M .
WATER SCIENCE AND TECHNOLOGY, 2000, 41 (09) :107-114