Tannery Wastewater Treatment by Sequencing Batch Biofilm Reactor

2003 ◽  
Vol 37 (14) ◽  
pp. 3199-3205 ◽  
Author(s):  
C. Di Iaconi ◽  
A. Lopez ◽  
R. Ramadori ◽  
R. Passino
Keyword(s):  
Wastewater Treatment ◽  
Biofilm Reactor ◽  
Tannery Wastewater ◽  
Sequencing Batch Biofilm Reactor

Integration of chemical and biological oxidation in a SBBR for tannery wastewater treatment

2004 ◽  
Vol 50 (10) ◽  
pp. 107-114 ◽  
Author(s):  
C. Di Iaconi ◽  
F. Bonemazzi ◽  
A. Lopez ◽  
R. Ramadori
Keyword(s):  
Wastewater Treatment ◽  
Chemical Oxidation ◽  
Biofilm Reactor ◽  
Flow Dynamics ◽  
Laboratory Scale ◽  
Tannery Wastewater ◽  
Biological Degradation ◽  
Bed Porosity ◽  
Sequencing Batch Biofilm Reactor ◽  
Innovative Process

This paper reports the results of an investigation aimed at evaluating the laboratory-scale performance of an innovative process for treating tannery wastewater. In this process, biological degradation, carried out in a sequencing batch biofilm reactor (SBBR), is combined with chemical oxidation by ozone. Tannery wastewater treatment was carried out, at laboratory scale, on a real primary effluent coming from a centralised plant treating wastewater produced by a large tannery district in Northern Italy. SBBR performance both without and with ozonation, was assessed with very satisfactory results. In particular, in the latter instance the recorded COD, TKN and TSS average removals, (96%), (92%) and (98%) respectively, allowed the maximum allowable concentration values fixed by the Italian regulation in force to be achieved without any additional polishing step. During the investigation biofilm properties (biofilm concentration and biofilm density) and flow dynamics aspects (head loss, shear stress, bed porosity) were also studied. A major feature of the process is that, with or without ozonation, it was characterised by very low specific sludge production (0.05 kgVSS/kgCODremoved) and high biofilm density (i.e. 87-122 gVSS/Lsludge) both contributing to a rather high biofilm concentration (i.e. 31-44 gTSS/Lfilter).

Experimental study on sequencing batch biofilm reactor with biological filtration (SBBR-BF) for wastewater treatment

2004 ◽  
Vol 48 (11-12) ◽  
pp. 299-307 ◽  
Author(s):  
T.W. Li ◽  
Y.Z. Peng ◽  
Y.Y. Wang ◽  
G.B. Zhu ◽  
W.Q. Chi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Laboratory Experiment ◽  
Wastewater Treatment Plants ◽  
Domestic Wastewater ◽  
Biofilm Reactor ◽  
Treatment Technology ◽  
Biological Filtration ◽  
Efficient System ◽  
Filtration Cycle ◽  
Sequencing Batch Biofilm Reactor

A novel wastewater treatment technology combining a sequencing batch biofilm reactor and biological filtration in an SBBR-BF system was presented. Elastic plastic filaments were fixed as biofilms carrying media. Particle materials (sand or anthracite) and the settled sludge constituted the filtration layer. In the laboratory studies, operating results of SBR, SBBR and SBBR-BF were compared. Better quality and stable water quality of effluent could be achieved in SBBR-BF because the fixed film and filtration layer were added in the reactor. Other laboratory experiment results indicated that slow filtration, cycle water stirring and backwashing making use of the settled supernatant are successful methods for preventing clogging and saving energy. The velocity and headloss of filtration were significantly impacted by different MLSS concentration. The MLSS concentration in the reactor must be less than 1,400 mg/L for optimal results. The average velocity of filtration ranging from 0.6 to 1.0 m/h, the backwash velocity of 10–15 m/h and the backwash time of 20 seconds are recommended according to the laboratory experiment. On-site experiment and study showed that SBBR-BF is a stable and efficient system for domestic wastewater treatment, and is particularly suited for small wastewater treatment plants, because of the simple operation and compact installation.

Anaerobic sequencing batch biofilm reactor applied to automobile industry wastewater treatment: Volumetric loading rate and feed strategy effects

2008 ◽  
Vol 47 (8) ◽  
pp. 1374-1383 ◽  
Author(s):  
Ricardo Polisaitis Oliveira ◽  
José Antonio Ghilardi ◽  
Suzana Maria Ratusznei ◽  
José Alberto Domingues Rodrigues ◽  
Marcelo Zaiat ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Automobile Industry ◽  
Loading Rate ◽  
Biofilm Reactor ◽  
Sequencing Batch Biofilm Reactor ◽  
Feed Strategy ◽  
Volumetric Loading ◽  
Industry Wastewater

Full-scale anaerobic sequencing batch biofilm reactor for sulfate-rich wastewater treatment

2011 ◽  
Vol 25 (1-3) ◽  
pp. 13-19 ◽  
Author(s):  
Arnaldo Sarti ◽  
Ariovaldo J. Silva ◽  
Marcelo Zaiat ◽  
Eugenio Foresti
Keyword(s):  
Wastewater Treatment ◽  
Full Scale ◽  
Biofilm Reactor ◽  
Sequencing Batch Biofilm Reactor
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