MBR

It is found that, at the same ML concentration, the specific ammonia utilization rates (nitrification rate) for the conventional BNR system are approximately 1.8 times higher than those found in the parallel MBR–BNR system, probably due to different selective pressures. In contrast, no differences i

Biological treatment of high-strength nitrogen wastewater by a combined anaerobic (upflow sludge bed filter, UBF)/aerobic (membrane bioreactor, MBR) system has been studied. This system exhibited high performance on the removal of organic matter and nitrogen simultaneously. Organic and nitrogen conc

In order to evaluate the performance of a newly developed dynamic state membrane bio-reactor (MBR) with MIA, a full-scale plant with the capacity of 210 m3/d was operated for treating sewage. Due to the MIA, the effect of residual oxygen could be completely removed during the non-aeration period and

In biological treatment processes, the effluent contains some portion of organic material originating from soluble microbial products (SMP) that is closely related with extracellular polymeric substances (EPS), although the biological activity is maximized. These SMP should be considered important t

This study was performed to evaluate the operational parameters on aeration on/off time in an intermittent aeration membrane bioreactor for wastewater treatment. The membrane bioreactor has 5.5 L of effective working volume including a microfiber membrane. The influent wastewater contained 133 mg/L

Extracellular polymeric substances (EPS) are considered as the major cause of membrane fouling in membrane bioreactors. Recent studies have revealed a linear relationship between fouling rate (increase of filtration resistance over time) and polysaccharide (PS) concentration [1]. Several factors lik

In this study a membrane bioreactor (MBR) using white-rot fungi was used for the decolorization of dye solutions. The decolorization of dye solutions by Trametes versicolor KCTC 16781 and membrane filtration were combined, and the applicability of this process was investigated using reactive dye sol

The increasing need for water in the arid areas of the world has resulted in the emergence of new water re-use technologies. The success of water re-use projects however, does not just depend on the effectiveness and suitability of the technology, but also on the presence of an institutional framewo

In this paper the effect of different SRT on the performances of an ultrafiltration pilot MBR operating with real wastewaters was tested to analyse both the ability of the system to remove nutrients and micropollutants and the possible decrease in waste sludge production. Increasing MLSS from 4 to 9

In this study, a mathematical model has been developed for the submerged membrane bioreactor (SMBR) combining the activated sludge model No.1 (ASM1) with a membrane fouling model. The ASM1 was modified to take account into biological characteristics of the SMBR process, and the resistance-in-series