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A Pilot-scale stduy was conducted to evaluate the biological nitrogen removal performance of pig farm biogas slurry in Self-developed sequencing batch biofilm reactor. Influent and effluent samples were analyzed for COD, NH4--N, NO3--N, NO2--N, PH, dissolved oxygen and temperature. The Pilot-scale experiment's data showed the ammonia-nitrogen removal for pig slurry was more than 75% on the conditions...
Based on the characteristics of high COD, high ammonia and high suspended solids in livestock wastewater, a combined technology consisting of Internal Circulation (IC) anaerobic reactor and Sequencing Batch Biofilm Reactor (SBBR) was carried out. After start-up for 42 days, IC reactor could remove 80%-90% of COD with organic loading rate of 12 kg COD/(m3 day) in treating raw livestock wastewater....
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