A novel nanofiltration membrane bioreactor (NF-MBR) was constructed by integrating a loosely structured hollow fiber into an aerobic activated sludge system. In order to verify the feasibility of loose NF bioreactor, parallel experiments conventional ultrafiltration (UF-MBR) and NF-MBR were conducted investigate process performances, fouling characteristics. The showed relatively high permeabil...

This study demonstrates the applicability of pressurized stirred tank bioreactors for oxygen transfer enhancement in aerobic cultivation processes. The specific power input and the reactor pressure was employed as process variable. As model organism Escherichia coli, Arxula adeninivorans, Saccharomyces cerevisiae and Corynebacterium glutamicum were cultivated to high cell densities. By applying...

Microflora immobilization is promising for nutrient removal applications in sewage; however, the metabolic and microbial mechanism needs to be further explored. Heterotrophic nitrification-aerobic denitrification (HN-AD) bacterium efficient nitrogen (N) bacteria were selected immobilized on corncob particles using alginate polymer prepare microbe–organic complex beads. The beads then added into...

Aerobic granular sludge reactors usually operate in sequential batch mode, although this configuration limits the treatment of large volumes wastewater, and they require a storage system. To implement technology at full-scale, it would be necessary to design simple compact continuous-flow bioreactor able treat larger wastewater. In study, four aerobic single-chamber (R1, R2, R3 R4) were designe...

In aerobic bioprocesses, oxygen is a key substrate; due to its low solubility in broths (aqueous solutions), a continuous supply is needed. The oxygen transfer rate (OTR) must be known, and if possible predicted to achieve an optimum design operation and scale-up of bioreactors. Many studies have been conducted to enhance the efficiency of oxygen transfer. The dissolved oxygen concentration in ...

Ponding system or land application techniques are widely used at industrial scale to treat palm oil mill effluent (POME) prior discharge the environment. POME is considered as one of major problems that has generated voluminously from industries. The main purpose this article organize scattered available information on various aspects and a wide range promising current treatments including biol...