The effect of time and velocity variation in sequencing batches reactor on cod and bod, removal efficiency in tofu waste

Abstract The tofu industry produces liquid waste that can cause pollution if it is not processed first. Tofu has the characteristics of containing high organic matter such as BOD and COD so directly discharged into environment, will reduce carrying capacity environment. purpose this study was to determine analyse effect variations in times velocity sequence batch reactor on optimization removal industrial wastewater by anaerobic bacteria originating from natural sediments. method used an experimental where find other things controlled using artificial waste. be done biological treatment process with attached growth Sequencing Batch Reactor. inoculated septic tank sediment fed a concentration 7,000 mg/l 2,000 mg/l. For 35 days, operated batches. Results showed decrease parameters sequencing 176 570