Single-slice single-layer hollow fiber film component

Abstract

The invention discloses a single-chip single-layer hollow fiber membrane component, comprising a plurality of membranes, an upper collector pipe, a lower collector pipe, an upper collector chamber and a lower collector chamber, which is characterized in that: the membranes are composed of a hollow fiber membrane silk; the collector pipes are arrange around the membranes; the upper and the lower collector pipes are inward connected with the upper and the lower collector chambers respectively; the upper and the lower collector chambers are connected with the two ends of the hollow fiber membrane silk respectively; each membrane is a single chip and a single layer; the distance between the adjacent membranes is 10 to 12 mm ; plastic knit meshes on the upper collector chamber are hanged up at two sides of each membrane and the upper end of each membrane is connected with the plastic knit meshes; a plurality of aeration pipes are arranged between the adjacent membranes on the lower collector chamber and holes are arranged on the aeration pipes. The single-chip single-layer hollow fiber membrane component has the advantages that: obvious longer duration of the stable stage than that using the common membrane component; reduced tangle of fiber membrane silk, less stuck or clogging of fiber membrane silk by mud or small particle; less membrane pollution and cleaning times; meanwhile small membrane crossing pressure when running and the energy consumption.

Description

technical field [0001] The invention relates to a membrane module used in a membrane bioreactor, in particular to a single-piece single-layer hollow fiber membrane module used in an integrated membrane bioreactor. Background technique [0002] Hollow fiber membranes are widely used in membrane bioreactors due to their advantages of good pressure resistance, no support, and large flux. During the filling and pouring process of existing hollow fiber membranes, the distance between membrane layers is small and the density of membrane filaments is high, which brings some insurmountable problems to the operation of membrane modules. For example, high-density membrane filaments are easy to entangle with each other and are easily stuck together by sludge, which reduces the effective use area of ​​the membrane; due to the high density of the membrane layer and small spacing, the secondary membrane of sludge cannot be formed in the middle membrane layer. Unable to be protected by th...

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Problems solved by technology

For example, high-density membrane filaments are easy to entangle with each other and are easily stuck together by sludge, which reduces the effective use area of ​​the membrane; due to the high density of the membrane layer and small spacing, the secondary membrane of sludge cannot be formed in the middle membrane layer. Unable to be protected by the sludge secondary membrane, irreversible pollution caused by fine particles is prone to occur; due to the high density of the membrane layer and the small spacing, when the outermost membrane forms a mud cake layer, the mud cake layer is affected by the outer and inner layers The common suction effect of the membrane, the suction pressure per unit area is large, it is easy to make the mud cake layer dense and increase the membrane resistance

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