Assembly for water filtration using a tube manifold to minimise backwash
First Claim
1. A membrane filtration assembly comprising:
- a membrane module having one or more permeable hollow membranes extending between an upper header and a lower header;
a filtrate collection chamber associated with the upper header and the lower header and in fluid communication with lumens of said membranes, said filtrate collection chamber configured to collect filtrate withdrawn through said membrane lumens;
a filtration chamber configured to receive feed liquid to be applied to the surface of membranes within said membrane module, said filtration chamber having an open upper end and a closed lower end, wherein said membrane module is located within said filtration chamber; and
a feed tank configured to provide said feed liquid through said open upper end of said filtration chamber, wherein said filtration chamber is located within said feed tank, said feed tank surrounding said filtration chamber, and said open upper end of said filtration chamber is located at a height above the upper header of said membrane module.
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Accused Products
Abstract
A membrane filtration assembly (10) including having a filtrate carrier (9) for minimizing backwash. The membrane filtration assembly includes a membrane module (5) having one or more permeable hollow membranes (6) supported therein by an upper header (7) and a lower header (8). The filtrate carrier (9) extends between the upper (7) and lower (8) headers to allow filtrate to be collected from either or both ends of membranes (6). A filtrate collection chamber (18) is associated with the upper (7) and lower headers (9) and in fluid communication with lumens of the membranes (6) for collecting filtrate withdrawn through said membrane lumens. A filtration chamber (11) is provided for receiving feed liquid to be applied to the surface of membranes (6) within the module (5). The filtration chamber (11) includes an open end for receiving the feed liquid. The open end is located beyond the height of the module (5) to enable gravity feed.
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Citations
15 Claims
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1. A membrane filtration assembly comprising:
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a membrane module having one or more permeable hollow membranes extending between an upper header and a lower header; a filtrate collection chamber associated with the upper header and the lower header and in fluid communication with lumens of said membranes, said filtrate collection chamber configured to collect filtrate withdrawn through said membrane lumens; a filtration chamber configured to receive feed liquid to be applied to the surface of membranes within said membrane module, said filtration chamber having an open upper end and a closed lower end, wherein said membrane module is located within said filtration chamber; and a feed tank configured to provide said feed liquid through said open upper end of said filtration chamber, wherein said filtration chamber is located within said feed tank, said feed tank surrounding said filtration chamber, and said open upper end of said filtration chamber is located at a height above the upper header of said membrane module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification