Filter for removing sediment from water
a filter and sediment technology, applied in water cleaning, sewage draining, separation processes, etc., can solve the problems of sediment, major source of water pollution, and blockage of fish gills
Inactive Publication Date: 2014-10-09
CONTECH ENGINEERED SOLUTIONS
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Benefits of technology
This solution effectively removes a substantial amount of fine sediment from stormwater runoff with minimal head loss and extended maintenance intervals, maintaining high filtration efficiency even during high flow events.
Problems solved by technology
Stormwater runoff does not usually receive any treatment before it enters streams, lakes, and other surface waters, and it is a major source of water pollution.
One of the harmful pollutants of major concern is sediment.
Sediment accumulates in water bodies and destroys feeding grounds for aquatic life, clogs fish gills, blocks light, increases water temperature, and can cause other adverse environmental impacts.
Sedimentation-based tanks, however, cannot completely remove all of the fine sediment from stormwater because of the required settling time needed for fine sediment to be removed from stormwater.
For example, settling out the fine sediment in stormwater would require a large and uneconomical sedimentation-based tank.
However, as the fine sediment continues to accumulate, the interstitial gaps eventually clog and must be frequently recharged.
Granular media filter systems can be partially recharged through pressurized backwashing, but pressurized backwashing piping and controls are complicated and expensive.
While these types of filters and others like them have their merits, they also have their drawbacks.
As a result, during high flow events, the filter systems quickly clog, causing the stormwater runoff to back up.
Method used
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[0042]Although the present invention is described in the context of stormwater filtration, the invention is not so limited. Rather, the present invention has application as a filter media for many types of liquid, including water. Stormwater runoff generally has an “organic portion” and an “aqueous portion.” The organic portion of stormwater runoff typically has a relatively high amount of sediment, which includes, for example, dislodged soil particles from stream banks, construction sites, and other areas, as well as other suspended particles that may or may not be organic. The aqueous portion of stormwater is primarily water. As used herein, the term “downstream” in a process system means later in the direction of general process or fluid flow, and the term “upstream” means earlier in the direction of general process or fluid flow.
[0043]Disclosed embodiments of the present invention and their advantages may be understood by referring to FIGS. 1-14, wherein like reference numerals ...
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A system for removing sediment from water is disclosed. The exemplary embodiments described herein disclose a system comprising a filter chamber, having a deck positioned inside to divide it into an upper chamber and a lower chamber. The deck may have a plurality of holes to hold filtration elements and also may have a ridge or a skirt or both. The filtration elements may be filter cartridges with multiple elongated filter elements that extend down into the lower chamber.
Description
[0001]This is a continuation of International Patent Application No. PCT / US2012 / 062205 filed Oct. 26, 2012, which claims priority to U.S. patent application Ser. No. 13 / 283,000 filed on Oct. 27, 2011, now U.S. Pat. No. 8,287,726, which is a continuation-in-part of U.S. patent application Ser. No. 12 / 014,888 filed on Jan. 16, 2008, now U.S. Pat. No. 8,123,935, the entire disclosures of which are incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention generally relates to an apparatus, system, and method for removing sediment from water, and, more particularly, to an elongated filtratable element used for removing sediment from stormwater.[0004]2. Description of the Related Art[0005]Stormwater runoff is rainfall or snowmelt that travels over the ground or impervious surfaces—roofs of buildings, homes and sheds, roadways, parking lots, sidewalks and driveways—and drains into natural or manmade drainage ways. In some cases, stormwa...
Claims
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IPC IPC(8): E03F1/00
CPCE03F1/00B01D35/10B01D29/114B01D29/21B01D29/52B01D29/54B01D29/66B01D29/72E03F5/14B01D2201/0446B01D2201/0453B01D2201/0461B01D2201/291B01D2201/301B01D2201/4015B01D2201/4038B01D29/15B01D29/74
InventorDUBOIS, ROLANDWILLIAMS, GREGORYSCOTT, PERRYGARBON, JOELGALLUCCI, BOB
OwnerCONTECH ENGINEERED SOLUTIONS