Background & objectives: Anaerobic baffled reactor (ABR) is one of the low cost wastewater treatment systems compared to the aerobic method. Hoverer it should be studied and developed to overcome its limitations such as insufficient nutrient removal. The aim of this study was to evaluate the efficiency of the 5 sectional ABR pilot and improve it with integrated electric coagulation process for ...

Abstract The purpose of this study is to evaluate and compare the efficacy an anaerobic baffled reactor (ABR) filter (AF) in treating medium-strength wastewater under natural sludge growth conditions different hydraulic retention times (HRT) 12h 24h. ABR has five compartments with a total capacity 71 L, whereas AF 70% sponge bio-media volume 51 L. Both reactors required 13 weeks achieve steady-...

Treatment of starch wastewater was investigated in a 30 l capacity pilot scale anaerobic baffled reactor (ABR) under mesophillic conditions. The reactor was operated at different hydraulic retention times (HRTs) of 72; 48 and 24 h. Corresponding organic loading rates (OLRs) were 8.7; 7.6 and 22 kg COD/m 3 . d. The results showed that COD and BOD5 removals exceeded 40 and 50% respectively at OLR...

The applicability of anaerobic baffled reactor (ABR) was investigated for the treatment of acidic (pH 4.5-7.0) wastewater containing sulfate (1000-2000 mg/L) and Zn (65-200mg/L) at 35 degrees C. The ABR consisted of four equal stages and lactate was supplemented (COD/SO(4)(2-)=0.67) as carbon and energy source for sulfate reducing bacteria (SRB). The robustness of the system was studied by decr...

The treatment of synthetic acid mine drainage (AMD) water (pH 3.0-6.5) containing sulfate (3.0-3.5 g L(-1)) and various metals (Co, Cu, Fe, Mn, Ni, and Zn) was studied in an ethanol-fed sulfate-reducing 4-compartment anaerobic baffled reactor (ABR) at 32°C. The reactor was operated for 160 days at different chemical oxygen demand (COD)/sulfate ratios, hydraulic retention times (HRT), pH, and me...

A synthetic wastewater with high concentration of sulfate and COD was treated in anaerobic baffled reactor (ABR) coupled with an activated sludge. The work was accomplished in two phases. In the first phase, the concentration of sulfate was kept constant at 500mg/l, but COD concentration was increased from (3000mg/l to 6000mg/l), consequently, COD and sulfate removal in ABR reached to 80% and 9...

Background & Aims of the Study: Anaerobic baffled reactor (ABR) is one low-cost wastewater treatment systems; however, it has some limitations, such as insufficient standard nutrient outflow. Accordingly, should be studied and developed. This research aims to determine efficiency a five-sectional pilot upgrade with an integrated aerated media filter in (integrated reactor) for municipal tre...

Printing and dyeing wastewater is characterized with complex water quality poor biodegradability. In this study, a pilot-scale anaerobic baffled reactor (ABR) packing was verified to effectively degrade the organic pollutants in through hydrolysis acidification of microorganisms. At hydraulic retention time (HRT) 12 h an loading rate (OLR) 2.0–2.5 kg COD/(m3·d), ABR stabilized fluctuation range...