Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 4

Year

2019 1

2018 1

2012 1

2007 1

Keywords

SBBR 2

16S rRNA 1

Bacillus sp 1

Biofilm 1

Composite floating spherical carriers 1

Constructed wetland 1

In situ sludge reduction 1

Microbial community 1

Microbial community structure 1

Tetrachlorobisphenol A 1

alga-lysing bacteria 1

biological degradation 1

pH 1

sequencing batch biofilm reactor (SBBR) 1

open ︾

Search scope:

排序： Display mode:

Factors affecting simultaneous nitrification and denitrification in an SBBR treating domestic wastewater

LI Jun, GU Guowei, PENG Yongzhen, WEI Su

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2, Pages 246-250 doi: 10.1007/s11783-007-0042-0

Abstract: An aerobic sequencing batch biofilm reactor (SBBR) packed with Bauer rings was used to treat real domesticThe SBBR is advantageous for creating an anoxic condition, and the biofilm can absorb and store carbon

HTML PDF Collect

Effect of pH on biologic degradation of

Hongjing LI, Mengli HAO, Jingxian LIU, Chen CHEN, Zhengqiu FAN, Xiangrong WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2, Pages 224-230 doi: 10.1007/s11783-011-0314-6

Abstract: In this paper, the effect of pH on biological degradation of by alga-lysing bacteria in laboratory-scale sequencing batch biofilm reactors (SBBRs) was investigated. After 10 d filming with waste activated sludge, the biological film could be formed, and the bioreactors in which laid polyolefin resin filler were used to treat algal culture. By comparing the removal efficiency of chlorophyll at different aerobic time, the optimum time was determined as 5 h. Under pH 6.5, 7.5, and 8.5 conditions, the removal rates of were respectively 75.9%, 83.6%, and 78.3% (in term of chlorophyll ), and that of Chemical Oxygen Demand (COD ) were 30.6%, 35.8%, and 33.5%. While the removal efficiencies of ammonia nitrogen ( ) were all 100%. It was observed that the sequence of the removal efficiencies of algae, and organic matter were pH 7.5>pH 8.5>pH 6.5. The results showed that the dominant alga-lysing bacteria in the SBBRs was strain HM-01, which was identified as sp. by Polymerase Chain Reaction (PCR) amplification of the 16S rRNA gene, Basic Local Alignment Search Tool (BLAST) analysis, and comparison with sequences in the GenBank nucleotide database. The algicidal activated substance which HM-01 strain excreted could withstand high temperature and pressure, also had better hydrophily and stronger polarity.

Keywords： pH biological degradation alga-lysing bacteria sequencing batch biofilm reactor (SBBR) 16S rRNA

HTML PDF Collect

Investigate of in situ sludge reduction in sequencing batch biofilm reactor: Performances, mechanisms and comparison of different carriers

Yonglei Wang, Baozhen Liu, Kefeng Zhang, Yongjian Liu, Xuexin Xu, Junqi Jia

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1077-0

Abstract:

Microbial metabolism uncoupling, sludge decay is the main mechanism to promote in situ sludge reduction on this biofilm system.

The main reduction mechanism inside the biofilm is sludge decay in the longitudinal distribution of biofilm.

Mizugakiibacter and Azospira anaerobic fermentation bacterium dominate the FSC organisms indicating the dominant mechanism on the biofilm is sludge decay.

The floating spherical carriers with compound of the polyurethane and two fiber balls can effectively blocking suspended sludge, improving Biofilm formation efficiency significantly.

Keywords： In situ sludge reduction Biofilm Composite floating spherical carriers Microbial community SBBR