Effect of Operational and Design Parameters on Removal Efficiency of a Pilot-Scale UASB Reactor in a Sugar Factory
نویسندگان
چکیده
The influence of some effective parameters on the removal efficiency of a 500 liters UASB reactor was investigated. The best conditions to removal the pollution loading is pH=7 and temperature range of 35 to 38°C. The optimal of hydraulic retention time in medium COD amounts (800-1800 mg), is 5 h and in the high COD load (1800-2600 mg) is 6 h. Furthermore, the hydraulic rate is between 0.67-0.875 m/s, also the best yield removal of COD contaminants (upper than 90 percent) and removing total suspend solid (TSS) had been obtained about 72%.
منابع مشابه
Dynamic Modeling of Granular Sludge in UASB Reactors
n this paper, a mathematical model has been derived to predict the granulation time of anaerobic sludge in UASB reactors. In the proposed model, some physical, chemical and biological parameters affecting the granulation phenomena have been considered. To validate the model, 12 pilot-scale experiments in 4 UASB reactors are carried out and the results are discussed here. The reactors are starte...
متن کاملUASB-polishing ponds design parameters: contributions from a pilot scale study in southeast Brazil.
This paper presents the results of five years monitoring of an experimental wastewater treatment plant in southeast Brazil, comprised of a UASB reactor followed by a submerged aerated biofilter (BF) (field scale) and shallow polishing ponds (pilot scale). Three ponds in series achieved high quality effluent standards in terms of ammonia and E.coli, but a fourth pond did not result in further ef...
متن کاملModeling and Experimental Prediction of Wastewater Treatment Efficiency in Oil Refineries Using Activated Sludge Process
In this study, activated sludge process for wastewater treatment in a refinery was investigated. For such purpose, a laboratory scale rig was built. The effect of several parameters such as temperature, residence time, effect of Leca (filling-in percentage of the reactor by Leca) and UV radiation on COD removal efficiency were experimentally examined. Maximum COD removal efficiency was obtained...
متن کاملTreatability Evaluation of Municipal Wastewater and Anaerobically-Treated Industrial Effluent in a Rotating Biological Contactor
Performance of a rotating biological contactor (RBC) in treating municipal wastewater from primary sedimentation basin and anaerobically treated industrial effluent from an upflow anaerobic sludge blanket (UASB) reactor was investigated. The 280-L six-stage RBC pilot was operated at different organic loading rates and biodisc speeds. The overall removal efficiencies of soluble BOD decreased wit...
متن کاملTreatment of Tehran Refinery Effluents in UASB Reactors
This paper presents the results of an investigation into the treatment of Tehran Refinery effluents in UASB reactors. Four pilot-scale UASB reactors were built with similar dimensions, each with a volume of 45.78 1, and operated in parallel at 37 °C. The sludge seed was prepared from the waste activated sludge of the wastewater treatment unit of the refinery. The organic loading rates were grad...
متن کامل