Membrane filtration system and membrane bioreactor including the same
First Claim
1. A membrane filtration system, comprising:
- a treatment bath;
a membrane support frame that includes a subsidiary frame and is disposed in the treatment bath;
a separation membrane module installed in the membrane support frame, the separation membrane module comprising an upper frame, a lower frame, and a plurality of hollow fiber membranes provided between the upper frame and the lower frame;
a length adjusting part arranged under the subsidiary frame to adjust a distance (Lo) between the upper frame and the lower frame by moving the subsidiary frame up and down;
a reciprocating part connected with the membrane support frame to reciprocate the membrane support frame; and
a sludge floating part disposed on a lower end of the membrane support frame to float sludge accumulated in the treatment bath,wherein the length adjusting part is configured to automatically adjust the distance (Lo) by a vertical movement amount depending on a reciprocating distance of the separation membrane module.
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Accused Products
Abstract
A membrane filtration system, capable of effectively removing foreign matter attached to a separation membrane while saving energy by reciprocating the separation membrane, includes a treatment bath, a membrane support frame disposed in the treatment bath, a separation membrane module installed in the membrane support frame, a reciprocating part connected with the membrane support frame to reciprocate the membrane support frame, and a sludge floating part disposed on a lower end of the membrane support frame to float sludge accumulated in the treatment bath. The separation membrane module includes an upper frame, a lower frame, and a hollow fiber membrane provided between the upper frame and the lower frame.
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Citations
19 Claims
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1. A membrane filtration system, comprising:
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a treatment bath; a membrane support frame that includes a subsidiary frame and is disposed in the treatment bath; a separation membrane module installed in the membrane support frame, the separation membrane module comprising an upper frame, a lower frame, and a plurality of hollow fiber membranes provided between the upper frame and the lower frame; a length adjusting part arranged under the subsidiary frame to adjust a distance (Lo) between the upper frame and the lower frame by moving the subsidiary frame up and down; a reciprocating part connected with the membrane support frame to reciprocate the membrane support frame; and a sludge floating part disposed on a lower end of the membrane support frame to float sludge accumulated in the treatment bath, wherein the length adjusting part is configured to automatically adjust the distance (Lo) by a vertical movement amount depending on a reciprocating distance of the separation membrane module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A membrane bioreactor, comprising:
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a biological treatment train performing at least one biological treatment process among anaerobic, anoxic and aerotropic processes; and a membrane filtration system comprising a treatment bath; a membrane support frame that includes a subsidiary frame and is disposed in the treatment bath; a separation membrane module installed in the membrane support frame, the separation membrane module comprising an upper frame, a lower frame, and a plurality of hollow fiber membranes provided between the upper frame and the lower frame; a length adjusting part arranged under the subsidiary frame to adjust a distance (Lo) between the upper frame and the lower frame by moving the subsidiary frame up and down; a reciprocating part connected with the membrane support frame to reciprocate the membrane support frame; and a sludge floating part disposed on a lower end of the membrane support frame to float sludge accumulated in the treatment bath, wherein the length adjusting part is configured to automatically adjust the distance (Lo) by a vertical movement amount, depending on at least one of a reciprocating distance and a reciprocating period of the separation membrane module.
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Specification