A study of high level nitrogen wastewater by using MBR system

• Main Authors: Tzu-Lung Chang, 張子龍
• Other Authors: 張添晉
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/7m6ywu

碩士 === 國立臺北科技大學 === 環境規劃與管理研究所 === 94 === he purpose of this study is to understand the results of treating industrial wastewater by using MBR system. The membrane bioreactor (MBR) is one of the main researches to treat domestic and industrial wastewater in the recent decades. The elements that comprise a pilot plant include an anoxic tank, an aerobic tank, a MBR tank, a pump of influent effluent and chemical dosing system. The concentrations of influent MLSS,COD, BOD, and NH4+-N is 8,000mg/L, 2,500mg/L, 1,600mg/L and 350mg/L, respectively. Sludge retention time of the system is set from 18-30 days, and the influent of the lysine resin wastewater is fixed at 0.5 CMD. After 60 days operation without any backwash cleaning, the consequences of the experiment show that the removal efficiency of COD, BOD, and NH4+-N is 90%, 90% and 82%, respectively. The COD, BOD and NH4+-N loading of the experiment is with a range from 0.5 to 2.0kg/m3-day,0.5-1.5kg/m3-day and 0.1-0.2kg/m3-day. In this research, the combination of the sludge process and membrane technique process provides high removal efficiency of pollutants.