Method and apparatus for removing impurities in rejects from sequential filters using separate treatment units

A processing unit and filter technology, applied in the directions of loose filter material filters, gravity filters, chemical instruments and methods, etc., can solve different treatment methods, the first waste liquid and the second waste liquid have different chemical compositions , different impurity levels, etc.

Inactive Publication Date: 2009-08-19
PARKSON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] One of the disadvantages of U.S. Published Patent No. 6,426,005 is that the first waste stream and the second waste stream may contain different chemical compositions or different levels of impurities and may require different treatment methods

Method used

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  • Method and apparatus for removing impurities in rejects from sequential filters using separate treatment units
  • Method and apparatus for removing impurities in rejects from sequential filters using separate treatment units
  • Method and apparatus for removing impurities in rejects from sequential filters using separate treatment units

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Embodiment Construction

[0035] The details of the present invention will be explained below with reference to the accompanying drawings.

[0036] figure 1 A sand filter 30 that can be operated continuously in an existing wastewater treatment process is shown. Such sand filters 30 are of a conventional type and are disclosed in US Patent Nos. 4,126,546; 4,197,201; 4,246,102; and 6,426,005, which are incorporated herein by reference. As discussed next, if figure 2 As shown, two identical sand filters 30 each plus an independent processing unit can be connected together for serial operation.

[0037] The sand filter 30 includes a housing 32 having a generally cylindrical outer wall 34 extending from a top end 36 to a funnel-shaped end 38 . Such as figure 1 As shown, the outer wall 34 of the box body 32 extends downwards and surrounds the funnel-shaped end 38 to provide a vertical device 40, the box body 32 is supported by the vertical device 40, so that the box body 32 is kept vertical to the horiz...

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Abstract

The disclosed method and apparatus involves the use of sequential filters for the purification of liquid. The sequential filters may each produce rejects that can be processed separately in their respective treatment apparatus, which can be fine-tuned to the specific reject that it treats. Alternatively, the first reject may be treated while the second reject may not be treated. The rejects (whether treated or not) may be combined into a combined flow and then be recycled in the sequential filters.

Description

[0001] Related patents [0002] This application claims priority from US Provisional Patent Application No. 60 / 799,003, filed May 10, 2006, the entire contents of which are incorporated into this application. Background technique [0003] The present invention relates to the treatment of water / wastewater, and more particularly to a method for removing impurities and / or pollutants from water / wastewater by treating the waste liquid produced in each stage of a two-stage continuous operation granular media filtration system separately. Methods and equipment for removal. [0004] In many municipal and industrial water treatment systems, water / wastewater purification is required. One example is potable water systems, which are potable water obtained by treating surface water. Another example is municipal wastewater treatment systems, which treat wastewater to make it suitable for discharge or reuse as industrial water, irrigation water, or similar uses. To make treated water usab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/00C02F9/00
CPCB01D24/007B01D24/167B01D24/30B01D24/4689C02F9/00B01D24/00
Inventor B·H·博伊德W·A·莫罗卡D·E·简森
Owner PARKSON
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