摘要
In this experiment the performance of UBF process treatment for wastewater chicken manure was tested under the condition of constant temperature of 35℃ and the volume of UBF is 4 liters. The experiment covered two stages: the first was start up with phase I and phase II, the second was steady state. The following results average of operation period were obtained: (1) During the period of start up phase I operation the biogas production rate 0.39v/(v.day) at the volumetric COD loading rate of 2.97 kg COD/(m 3.d) with COD removal 76.85% and hydraulic retention time of 10.04 hours and phase II the biogas production rate 3.86 v/(v.day) at the volume loading rate 11.69 kg COD/(m 3.d) have been achieved with COD removal 82.47% and HRT 16.45 hours. UBF process had resistance to the quantitative shock load. (2) During the steady state operation, the biogas production rate 9.83v/(v.day) at loading rate of 28.85 kg COD/(m 3.d) and COD removal efficiency 80.03% and hydraulic retention time of 18.73 hours have been achieved for this reactor. The operation of UBF reactor was very stable.
In this experiment the performance of UBF process treatment for wastewater chicken manure was tested under the condition of constant temperature of 35℃and the volume of UBF is 4 liters.The experiment covered two stages:the first was start up with phase I and phase II,the second was steady state.The following results average of operation period were obtained:(1)During the period of start up phase I operation the biogas production rate 0.39v/(v.day)at the volumetric COD loading rate of 2.97 kg COD/(m 3.d)with COD removal 76.85%and hydraulic retention time of 10.04 hours and phase II the biogas production rate 3.86 v/(v.day)at the volume loading rate 11.69 kg COD/(m 3.d)have been achieved with COD removal 82.47%and HRT 16.45 hours.UBF process had resistance to the quantitative shock load.(2)During the steady state operation,the biogas production rate 9.83v/(v.day)at loading rate of 28.85 kg COD/(m 3.d)and COD removal efficiency 80.03%and hydraulic retention time of 18.73 hours have been achieved for this reactor.The operation of UBF reactor was very stable.
