It achieved higher removal efficiency than general activated sludge membrane bioreactor with 5.8% and 28.8% of COD and NH-N respectively. In addition, the membrane flux of two different membrane bioreactors was compared.
In order to comprehensively estimate the performances of different bioreactors in wastewater treatment,according to the Eckenfelder kinetic model on first-order biological reaction,this paper deduces unit-substrate-degradation-rate constant K′2,calculates and analyzes the K′2 values of bioreactors commonly used in wastewater treatment.
The whole set of exponential kinetic equations can be used to model the bioreaction process of protein enzymatic hydrolysis, to calculate the thermodynamic and kinetic constants, and to optimize the operating parameters for bioreactor design.
These methods include the microalgae photobioreactor, membrane microalgae photobioreactor, supported liquid membrane, membrane gas-liquid contactor, hydrogel membrane, and enzyme membrane bioreactor.
Cell carrier function of hollow-fiber membrane in rotating wall vessel bioreactor
Large-scale expansion of the osteoblasts of a Sprague-Dawley (SD) rat was studied in a rotating wall hollow-fiber membrane bioreactor (RWHMB) by using hollow-fiber membrane as the carrier.
For the sake of contrast, cells were also expanded in a T-flask using a hollow-fiber membrane as carrier and in a rotating wall vessel bioreactor (RWVB) using a microcarrier.
It is concluded that the RWHMB combines the advantages of the rotating wall vessel and hollow-fiber membrane bioreactors.
Therefore, to improve the wastewater treatment efficiency of bioreactors, ultrasound with an intensity of 0.3 W/cm2 could be employed to irradiate a part of the AS in the bioreactor for 10 min every 8 h.
The results indicated that the microbial community profiles in the wastewater bioreactors with the uniform status were very similar.
Chinese traditional medicine wastewater contained more complex organic components; hence, the population diversity was higher than that of simple nutrient bioreactors fed with molasses wastewater.
Compared with the strain bands in a simulated community, the relative proportion of some functional microbial populations in bioreactors was not dominant.
Silkworm (Bombyx mori) is always regarded as a model animal and biological reactor.
Comamonas strain CNB-1 was isolated from a biological reactor treating wastewater from a p-chloronitrobenzene production factory.
Bioremediation of selenium oxyanions in San Joaquin drainage water using Thauera selenatis in a biological reactor system
selenatis was inoculated into, and was maintained in, a biological reactor system for anaerobic treatment of selenate-nitrate containing drainage water; a population of denitrifying bacteria was also present.
The lab-scale biological reactor system consisted of recycled sludge-blanket (1 l; 400 g sand) and fluidized-bed (1 l; 300 g sand) reactors.
Gas-phase influence on the mixing in a fluidized bed bio-reactor
The single-strand conformation polymorphism (SSCP) technique was used to study the evolution of a bacterial consortium during the batch oxidation of a cobaltiferous pyrite in two types of bio-reactor: a bubble column and a classical stirred tank.
Experiments were conducted in a packed bed bio-reactor consisting of entrapped yeast cells in alginate matrix for continuous production of alcohol.
By choosing optimal regulation properties, such as input flow rate and/or concentration of the base, regulation span, position of the pH-electrode and base input location, etc., fluctuations of the pH-value in the bio-reactor can be minimized.
In this work a bio-reactor for acetic acid fermentation purposes is studied by using the static gassing out method for KLa evaluation.