用于生物性纯化水的方法与反应器;METHOD AND REACTOR FOR BIOLOGICAL WATER PURIFICATION

摘要

本发明描述一种用于生物性纯化水之方法，该方法包含：经由一或更多个进水管或进水区域将水导入到反应器中；将水及基质导向穿过用于生物薄膜生长之载体元件，该等载体元件具有高保护表面积(>200m 2 /m 3 载体元件)及大微孔容积(>60%)；其中将一或更多个薄膜单元浸没于反应器内的水中；其中经由薄膜之微孔从反应器中抽出渗透物；其中经由通气系统在反应器中供应含氧气体；其中在正常操作期间，将反应器内的水位维持低于一或更多个出水管或出水区域，该等出水管或出水区域专用于过量污泥移除；其中在洗涤操作期间，当反应器内的水位被临时抬升到专用于过量污泥移除之出水管或出水区域的水位时，产生强扰流以便移除过量污泥。; leading the water and substrate through carrier elements for biofilm growth which have a high protected surface area (>200 m 2 /m 3 carrier elements) and a large pore volume (>60%); wherein one or more membrane units are submerged in the water in the reactor; wherein permeate is pulled out of the reactor through the pores of the membranes; wherein oxygen-containing gas is supplied in the reactor through an aeration system; wherein during normal operation the water level in the reactor is maintained below one or more outlet pipes or outlet zones that are dedicated for excess sludge removal; wherein during washing operation strong turbulence is created for removal of excess sludge as the water level in the reactor is temporarily raised to the level where the outlet pipes or outlet zones that are dedicated for excess sludge removal are.