Determining biokinetic coefficients for the upflow anaerobic sludge blanket reactor treating sugarcane wastewater in hot climate conditions

Abstract

Sugar extraction from sugarcane is a process which contains high volume of effluent, high levels of organic matter and biochemical oxygen demand (BOD). So, their disposal and discharge to rivers and environmental systems endangers the aquatic life. This research investigates and determines the kinetic coefficients of anaerobic treatment system (UASB) in sugarcane industrial wastewater treatment plant. BOD5, COD, and TSS parameters in the input and output effluent of reactor were measured and the kinetic coefficients of Kd, KS, Kmax, and µmax were calculated using modified Monod Equations by determining the system design and operating parameters. The experimental results showed that rate of KS, Y, Kd, µmax, and Kmax for application of UASB process in wastewater treatment of sugarcane factories was 506.4 mg/L, 0.053 g VSS/g COD, 0.086 d -1 , 0.0049 d -1 , and 0.055 d -1 , respectively. The kinetic coefficients obtained in this research can be used in management, operation, and preparation of design principles of similar sugarcane treatment plants particularly in topical areas.

Critical State of the Art of Sugarcane Industry Wastewater Treatment Technologies and Perspectives for Sustainability

“…Activated sludge and macrophyte lagooning are also used for the purification of sugarcane industry wastewater, with interesting pollution removal rates. The COD and BOD 5 can be removed at more than 90% with an activated sludge system when treating sugarcane industry wastewater [ 86 ]. Studies conducted by Fonkou et al [ 87 ] on the treatment of distillery wastewater using Echinochloa pyramidalis planted filters yielded good results.…”