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    • 18. 发明授权
    • Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge
    • 用于清洁过滤膜组件和膜生物反应器系统的方法,用于处理未经处理的水或废水或活性污泥
    • US08580115B2
    • 2013-11-12
    • US12988667
    • 2009-04-23
    • Stefan KrauseReinhard VoigtPeter Cornel
    • Stefan KrauseReinhard VoigtPeter Cornel
    • C02F9/00
    • B01D65/02B01D65/025B01D2321/2091C02F3/1273C02F2303/16Y02W10/15
    • A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles. Alternatively, a cleaning tank including a circulating fluid containing particles may be provided for the temporary accommodation of the filtration module.
    • 通过在未处理的水中循环颗粒来提供清洁用于处理原水或废水或活性污泥的过滤模块的方法。 通过颗粒的机械作用,位于过滤膜外表面上的沉积物不会明显损坏膜。 最初,未经处理的水,废水或活性污泥进行化学机械预处理。 然后用生物活性物质污染的未处理的水或废水被排放到具有包括至少一个过滤罐的过滤单元的膜生物反应器系统中。 至少一个浸没过滤膜组件存在于过滤罐中。 该过滤槽中未处理的水或废水填充有颗粒并在过滤槽内循环。 颗粒是无孔的,生物耐受的聚合物颗粒。 或者,可以提供包括含有颗粒的循环流体的清洗槽用于过滤模块的临时容纳。