Study On Iron-carbon Micro-electrolysis For Pretreatment Of Cephalosporins Antibiotic Pharmaceutical Wastewater

Today, the production of antibiotics still has many technical difficulties. The utilization rate of raw materials and the purity of refining is low, which lead the wastewater contains hign content of antibiotic, resulting in antibiotic production wastewater has a high COD, complex component, high chroma, biological toxicity, poor biodegradability and contains a variety of inhibition material. The cephalosporins antibiotic pharmaceutical wastewater is a kind of hard of degradation about high concentration organic wastewater. if it have not timely be treated, the cephalosporins antibiotic pharmaceutical wastewater will cause serious environmental pollution. Datong cephalosporin antibiotic pharmaceutical factory recently expand the production scale, but the internal pharmaceutical wastewater treatment system is not high enough quantity to accommodate wastewater after increase production levels, So the pharmaceutical factory decided to discharge the pharmaceutical wastewater into a nearby sewage treatment plan, the sewage received by the Sewage treatment plant is main of the municipal sewage,so the sewage treatment plant decide to reform the original technology.After the transformation of the combination process, iron carbon micro electrolysis method was the most front pretreatment. This paper is aimed at the characteristic of pharmaceutical wastewater. The author carries on the simulation test by iron carbon micro electrolysis method, for checking the wastewater after the treatment of iron carbon micro-electrolysis can meet requirements to biochemical section.Secondly, the author should define the iron carbon micro electrolysis equipment various operation parameter, which can guide the design and provide a theoretical basis for the actual choice of the control parameterThe paper have a research on the iron carbon micro electrolysis pretreated cephalosporins antibiotics pharmaceutical wastewater and have a study on the Dynamics of iron carbon micro electrolysis.(1) The study on carbon micro electrolysis for pretreatment of cephalosporins antibiotics pharmaceutical wastewater. The influent of hydraulic retention time, the ratio of scrap iron to activated carbon, Volume of wastewater and pH value were investigated by orthogonal test. the results show that the influence order is Volume of wastewater, reaction time, V(Fe):V(C), pH value when the evaluating is COD removal efficiency. by the range analysis,the better parameter is the volume of wastewater for150mL (equivalenting to the iron carbon filler is250mL to150mL wastewater), hydraulic retention time for1.5h, V(Fe):V(C)for2:1, pH for5.0, the COD removal would reach to more than40%. (2) In the basis of the orthogonal test optimum level, the optimum process parameters is determined through the single factor experiment:the volume of wastewater for250mL (equivalenting to the iron carbon filler is250mL to150mL wastewater), hydraulic retention time for1.5h, V(Fe):V(C)for1:1, pH for5.0.(3) Under the optimal parameters, the volume for1L and the same quality of the cephalosporin antibiotic pharmaceutical wastewater is pretreated by the methods.the final results show:The methods on CODcr removal capacity are good, the best COD removal would be44.6%, biodegradability is promoted from original BOD/COD=0.012-0.082higher to BOD/COD=0.34.(4) The study on CODcr degradation kinetics of the iron carbon micro electrolysis pretreatment cephalosporin antibiotic pharmaceutical wastewater. Through adding iron carbon filler and wastewater disposably, the different periods of CODcr concentration would be investigated..Making use of Origin Pro software is used to fit three decay kinetics equation, iron carbon microelectrolysis substrate degradation kinetics is eatablished:...