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Low operating head polishing sand filter

A technology of operating water head and filter, applied in the direction of gravity filter, loose filter material filter, filter separation, etc., which can solve problems such as unsatisfactory, excessive economic burden, complicated operation, etc.

Active Publication Date: 2009-12-23
OASIS FILTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this requirement for their accurate operation to achieve desired performance in order to meet increasingly stringent water treatment regulations often results in excessive capital and operational financial burdens
Water treatment facilities that are complex to operate, generate excess wastewater, or use chemical agents are unsatisfactory due to difficulty in proper management and further complex wastewater treatment
Complex water treatment equipment requires many skilled facility operators, which is not feasible and affordable in many cases

Method used

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  • Low operating head polishing sand filter
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Embodiment Construction

[0016] Through the following description, specific details are set forth in order to provide a thorough understanding to those skilled in the art. However, known elements have not been shown or described in detail in order to avoid unnecessarily obscuring the present disclosure. Accordingly, the description and drawings are illustrative only, and not restrictive.

[0017] It is necessary to review the important characteristics of commonly used sand filtration technology in order to understand the advantages of the Low Operating Head Polishing Filter (LHPF) disclosed and claimed in this application.

[0018] Quick sand filter and pressure sand filter

[0019] Both quick sand filters and pressure sand water filters (commonly referred to as multi-media filters when the media in the filter bed is made of more than one material or two or more materials that Polishing filters such as quartz, anthracite or garnet sand) are commonly found in water treatment plants. Rapid sand fil...

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Abstract

This invention relates to a novel low operating head polishing sand filter comprising: (a) a plural-layer media bed comprising small, medium and large crushed quartzite; (b) an untreated water inlet system; (c) an underdrain system; (d) a filtered water collection and outlet system; and (e) a backwash water inlet, collection and siphon outlet system.

Description

technical field [0001] The invention relates to a new type of sand filter with low operating water head and luster enhancement. Background technique [0002] The traditional or conventional design of sand filtration is a satisfactory and effective water treatment solution in many large-scale applications. However, this requirement for their precise operation to achieve desired performance in order to meet increasingly stringent water treatment regulations often results in undue capital and operational financial burdens. Water treatment facilities that are complex in operation, generate excess wastewater, or use chemical agents are unsatisfactory due to difficulty in proper management and further complicated wastewater treatment. Complex water treatment equipment requires many skilled facility operators, which is not feasible and affordable in many cases. [0003] U.S. Patent No. 6,123,858 issued September 26, 2000 to David H. Manz discloses a novel intermittent slow sand f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/14B01D24/46B01D35/02C02F1/00E03F5/14
CPCC02F2303/16C02F1/004C02F1/001
Inventor 戴维·H·曼兹
Owner OASIS FILTER