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System and method for backwashing a ceramic membrane

A technology of ceramic membrane and backwashing, applied in the direction of chemical instruments and methods, membranes, membrane technology, etc., can solve problems such as complex systems

Inactive Publication Date: 2018-05-18
NANOSTONE WATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often, the result is a more complex system for typical ceramic membrane products

Method used

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  • System and method for backwashing a ceramic membrane
  • System and method for backwashing a ceramic membrane
  • System and method for backwashing a ceramic membrane

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Embodiment Construction

[0033] The following detailed description contains references to the accompanying drawings which form a part hereof. The drawings show, by way of illustration, specific embodiments in which the apparatus may be practiced. These implementations, also referred to herein as "examples" or "options," are described in sufficient detail to enable those skilled in the art to practice the embodiments of the invention. The described embodiments may be combined, other embodiments may be utilized, or structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not to be viewed in a limiting sense, and the scope of the invention is defined by the appended claims and their legal equivalents.

[0034] In this document, the term "a" is used to include one or more than one and the term "or" is used to mean a non-exclusive "or" unless indicated otherwise. Additionally, it is to be understood that the ph...

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Abstract

A method includes supplying feed water in a forward direction into a ceramic membrane treatment system at a first rate, the ceramic membrane treatment system including at least one ceramic membrane (120), and determining production cycle data of the system, the production cycle data including one of more of accumulation data, feed pressure data, and time since last backflush. The method further includes determining optimal physical flux parameters based on the production cycle data and efficiency of a previous flux maintenance event, conducting a flux maintenance event including accelerated cleaning of the at least one ceramic membrane at a second rate by using a square step backwash rate based on optimal physical flux parameters. The square step rate can be generated by ramping up pressure by a pump (220) against a closed valve (222) and a sudden open of said valve.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 182,244, filed June 19, 2015. The entire content of this provisional application is incorporated herein by reference. technical field [0003] A system and related method for operating a ceramic membrane. Background technique [0004] Ceramic membranes are known to have benefits over polymers in terms of longevity, high temperature stability, ability to operate at high pressure, and resistance to various chemicals. However, complex and expensive systems are required to effectively use ceramic membranes. Specifically, these systems either use high pressure reverse pulses, preferably with systems designed to hit the membrane with pressure waves in very short periods of time at pressures above a few bars, or continuously through a large number of repeated cycles Sweep off material remaining on the membrane surface. These lead to high cost and comple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/02
CPCB01D65/02C02F1/44B01D2315/08B01D2313/18B01D2313/24B01D2321/12B01D2321/04C02F1/444C02F1/52C02F2209/03C02F2209/40C02F2209/44C02F2303/16
Inventor S·史密斯B·怀斯A·库马尔C·J·库尔思
Owner NANOSTONE WATER