RECONFIGURABLE LEACHING MODULE
Reconfigurable water leaching modules are provided herein. These modules may comprise a plurality of dosing conduits and a plurality of leaching channels fluidly coupled to the dosing conduits where the leaching channels are reconfigurable from a first retracted position to a second extended position and where the leaching channels may hang downwardly from the dosing conduits in the second extended position.
- 1-16. -16. (canceled)
- 17. A reconfigurable leaching module comprising:
a plurality of reconfigurable leaching channels, each leaching channel of the plurality of reconfigurable leaching channels having a first outer treatment media interface surface, a second outer treatment media interface surface, and a length, each leaching channel of the plurality of reconfigurable leaching channels being moveable from a stowed position to an expanded position, and when in the expanded position, the first outer treatment media interface surface being spaced apart from the second outer treatment media interface surface of each of the leaching channels of the plurality of reconfigurable leaching channels; and a first dosing conduit, the first dosing conduit positioned to dose wastewater into the space between the first outer treatment media interface surface and the second outer treatment media interface surface of a first leaching channel of the plurality of reconfigurable leaching channels.
- View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
- 25. A reconfigurable leaching module comprising:
a plurality of reconfigurable leaching channels, each leaching channel of the plurality of reconfigurable leaching channels being moveable from a stowed position to an expanded position, when in the expanded position, the first outer treatment media interface surface of each of the leaching channels of the plurality of reconfigurable leaching channels being spaced apart from the second outer treatment media interface surface of each of the leaching channels of the plurality of reconfigurable leaching channels, wherein each leaching channel of the plurality of reconfigurable leaching channels is spaced apart from each other leaching channel of the plurality of reconfigurable leaching channels along at least a portion of its length.
- View Dependent Claims (26, 27, 28)
- 29. A reconfigurable leaching module comprising:
a first reconfigurable leaching channel, the first reconfigurable leaching channel having a first treatment media interface surface, a second treatment media interface surface, and a length, the first reconfigurable leaching channel being moveable from a stowed position to an expanded position, and when in the expanded position, the first treatment media interface surface being spaced apart from the second treatment media interface surface; and a first dosing conduit, the first dosing conduit positioned to dose wastewater into the space between the first treatment media interface surface and the second treatment media interface surface of the first reconfigurable leaching channel.
- View Dependent Claims (30, 31, 32, 33, 34)
This application claims priority to U.S. provisional application 62/502,082, which was filed on May 5, 2017 and is entitled Modular Reconfigurable Leaching Field. The '"'"'082 application is incorporated in its entirety by reference into this application.
Processes, systems, apparatuses, and articles of manufacture involving infiltration fields for use in residential, commercial, or industrial water infiltration systems are provided herein. More particularly, reconfigurable leaching modules, for use in a water infiltration field, where the leaching modules are reconfigurable from a first compact orientation to a second enlarged orientation, are provided herein.
Water infiltration systems vary in size and scope. They can be sized for processing large amounts of water from a municipality or other large cumulative systems for benefitting many residences, businesses, and industrial facilities serviced by the municipality. Water infiltration systems can also be designed and sized for single home residential use and for small-scale residential and commercial uses.
Embodiments may be directed to processes, apparatuses, systems, and manufactures involving reconfigurable leaching modules. These modules may comprise one or more leaching channels and may be connected together to form a leaching field of an infiltration system of a water treatment or other water processing system. Modules may include distribution conduits hydraulically coupled to leaching channels where the conduits and channels are connected such that they may be moved as a unit from one place to another, i.e., the conduits and channels may be modular. The conduits and channels, i.e. the module, while moveable, may also be reconfigurable such that they may be moved while in a first configuration and may be deployed and used in an infiltration field of an infiltration system while in a second configuration.
Water processing systems, such as wastewater treatment systems, may comprise one or several of these leaching modules for use in a leaching field, drain field or other infiltration field or an infiltration system where the modules, field, and system are configured to treat or otherwise process water having various sources including wastewater, storm water, and process water (all of which are herein collectively referred to as water). The infiltration fields may comprise one or more leaching modules, where each of the modules of a leaching field may have the same layout topology, or where leaching modules of an infiltration field or infiltration system may have different topologies or layouts. For example, some infiltration fields may have modules with different loading configurations, different leaching channel orientations, different leaching channel constructions, and/or different module layout topologies.
As noted, the leaching modules may be reconfigurable from a first configuration to a second configuration. This second configuration may have the leaching module occupy a larger overall volume than the first configuration. This increase in occupied volume may occur because the leaching channels of the modules comprising a modular infiltration field become more extended or fully extended while in the second configuration. Thus, by expanding or otherwise extending the leaching channels of a module or several modules, the distribution conduit(s) and leaching channel(s) of each module can occupy a larger volume of space than when in the nonextended or first configuration. Such reconfigurability may be beneficial for storage and/or transportation or for other reasons as well.
There are various adaptations of embodiments, and many permutations, that may be employed within the spirit and scope of this disclosure. Those of skill will understand that the invention is not to be limited to only those embodiments described herein and that other embodiments and applications consistent with the teachings herein would also fall with the scope of this disclosure. For example, and as explained in more detail below, these other permutations can include variations in components of the leaching modules, the infiltration fields, any surrounding Infiltration Treatment Media (ITM), the connections between the leaching modules and other leaching modules as well as other components of an infiltration field, an infiltration system, and/or a water processing system, or other components of a water processing system, the configuration of the infiltration fields themselves, and/or the configuration and components of infiltration systems comprising the leaching module(s), as well as still other permutations.
Embodiments may be directed to processes, apparatuses, and manufactures in which reconfigurable modular leaching fields are involved. Embodiments may include distribution conduits hydraulically coupled to leaching channels where the conduits and channels are connected such that they may be moved as a unit from one place to another, i.e., the conduits and connected channels are modular. The conduits and channels, while moveable, may also be reconfigurable such that they may be moved while in a first configuration and may be deployed and used in a leaching field of an infiltration system of a water treatment system or other water processing systems while in a second configuration. The leaching modules may, in embodiments, be assembled offsite and then shipped in a retracted position where later they may be configured into a, second, or expanded, configuration and placed in the expanded configuration for use in an infiltration system. The water processing system, which can comprise the infiltration system, can comprise other components such as processing tanks, vents, valves, blowers, pumps, electronic controllers, etc. A water processing system may treat or otherwise process water having various sources including wastewater, storm water, and process water (all of which are herein collectively referred to as water).
The second module configuration may occupy a larger space than the first module configuration. This increase in occupied space may occur because the leaching channels become more extended or fully extended while in the second configuration. Thus, by expanding or otherwise extending the leaching channels of a module, the conduit and channels can occupy a larger volume of space than when in their nonextended or first configuration. Such reconfigurability may be beneficial for storage and/or transportation, or for other reasons.
In use, a leaching field or other infiltration field of an infiltration system may be constructed in phases through the use of modules. Each module, when in an expanded configuration, may be is suitable for treating and/or infiltrating a certain volume of water and can be configured into bedroom units or other measurable units for treatment of water in an infiltration field. In other words, a leaching module may be sized and/or otherwise configured to accept and process the anticipated water associated with a single bedroom of a multiple bedroom dwelling. Thus, if a four-bedroom home is being serviced, four modules may be installed in a leaching field of the infiltration system. When more flow is present, e.g., when more bedrooms are present or an increase in flow is anticipated or realized, additional modules may be added to the water processing system to increase the treatment and hydraulic capabilities of the system as a whole. Likewise, when fewer bedroom or less demand is anticipated or realized, fewer modules may be employed. The modules may be fabricated for a certain number of bedrooms, for example, one module may serve 1.5 bedrooms or two bedrooms or one bedroom, so when a bedroom is added, an additional module, calibrated for that single bedroom may be added.
In embodiments, the leaching modules may be connected in series, in parallel, or in combinations of series and parallel. They may be connected with one or more valves and may be vented as well. Infiltration treatment media (ITM) may be placed between the leaching channels as well as around, below, and above the installed leaching modules. This ITM may be placed during the installation of the infiltration system. The modules may be constructed offsite and brought to an installation site in a retracted, or collapsed, condition. Then, ahead of, or during installation, the modules may be reconfigured into their extended positions and installed as a leaching field or other infiltration field.
Various designs and materials may be employed in embodiments. PVC pipe or other pipe material may be employed as a support and/or dosing distribution conduit, while the reconfigurable leaching channels may be comprised of various combinations and configurations of geotextile materials, two-dimensional structures, three-dimensional structures (e.g., a pliable mat, cuspated panel, or other structure with or without fabric or membrane and a notable thickness, e.g., greater than approximately ⅛″), and flat pipes, among other things. Thus, the reconfigurable channels may be pliable in some embodiments and rigid in others, depending upon the materials comprising the leaching channels. Spacers may be used in the leaching channels to maintain a preferred channel height. These spacers may be positioned between upper distribution conduits and lower redistribution conduits, but may also be employed when no lower redistribution conduits are present and may serve to maintain a minimum height of a leaching channel.
In embodiments, the fabric or membrane or other outer material of exemplary leaching channels may preferably be hygroscopic or hygroscopically treated. This outer material may encase the entire leaching channel or may encase only portions of it. For example, as shown in
The leaching channels may be typically spaced approximately 4″ to 6″ apart from each other, and the space between them may be filled with soil, such as sand, and/or other suitable treatment media. The leaching channels preferably have a height to width aspect ratio of 3-96, but other aspect ratios within this range and outside of this range may be employed. As noted, the leaching channels may comprise both external materials and internal materials. The internal materials and external materials may include stringy structures, three-dimensional plastic matrixes, geotextile fabric or other geotextile materials, such as those identified herein, and/or other filler materials as well as. Thus, in some embodiments, a leaching channel may comprise an external material of geotextile fabric and an internal material of geotextile, and some embodiments may include a second or third or further internal material such as another geotextile fabric as well as another geotextile. Still further combinations may also be used in embodiments.
During installation, a support or a plurality of supports may be used to support the distribution conduits and allow the leaching channels to move into an extended position. This support or supports may further enable soil, such as sand, polymer granules, or another ITM to be placed between the leaching channels. In preferred embodiments, the placement of the ITM should provide minimal disturbance to the positioning of the leaching channels after a module is positioned and the leaching channels are positioned in their deployed position. In other words, the placement of the ITM around extended leaching channels should be preferably accomplished with little movement to the extended leaching channels.
Various supports may be employed to support the dosing conduits and the leaching channels during installation and afterwards, during use. These supports may be placed at the ends of each module, along the length of the module, and/or at other positions as well. These supports may be permanent as well as removable. Permanent supports would remain with the infiltration field after the installation is complete, while removeable supports may be removed once the ITM is installed or the modules are otherwise supported during installation. Some embodiments may employ combinations of permanent and removeable supports.
Embodiments may comprise a rigid piping conduit framework, which can serve to disperse water to high aspect ratio leaching channels of the leaching modules. High aspect ratio channels may be considered to be leaching channels having a height to width aspect ratio in the range of three to ninety-six. For example, a leaching channel with a height of three inches and a width of one inch would be considered to have an aspect ratio of 3, which is considered a high aspect ratio as it falls in the range of 3-96.
As noted, leaching modules can fold flat or effectively flat for shipping and may be configured with a manifold riser or other conduit that can be set at an elevation coincident with or higher than the module, to preferably ensure that all or most of the infiltrative surface of that module, as well as any connected modules, may be utilized for infiltration. These risers or other conduits can serve as an input for an installed leaching module.
Supports for the modules can include exoskeleton support stakes that snap over the leaching channels and internal distribution conduits. These stakes or other supports can be configured to perform various functions, including: to hold the distribution conduit in the top of the high aspect ratio leaching channel, to hold the distribution conduit in place for backfilling at the desired elevation and location, as well as other functions. Certain supports, including certain stakes, can also have connecting members and sockets to snap to the leaching channels and join them together at a specific distance apart to allow for sand or soil backfilling or other ITM backfilling.
In certain embodiments, a manifold may be placed at the bottom of the leaching modules. This manifold may be configured such that it provides for the redistribution of water between most or all of the rows of leaching channels. Certain bottom interconnecting manifold designs may also be employed. These bottom interconnecting embodiments, as well as other embodiments, may have an inspection port integrated into the manifold to monitor water levels or other operational or maintenance features of the leaching channels. Inspection ports can also be placed into hydraulic communication without integration into bottom interconnecting manifolds of embodiments. Also, inspection ports may be coupled to bottom manifold or formed as part of bottom manifold in embodiments. These ports, as well as others, may be used to monitor water, system status, carbon source efficacy, and/or other conditions. Carbon sources placed in the manifolds, other portions of the leaching modules, and/or other portions of an infiltration system may include methanol, methanol substitutes, microC, sugar, and/or other sources. Still further, the ports may be used for connection to other portions of a water processing system, including denitrification systems and additional modules.
In some applications, a water processing system can include a treatment tank that can receive water, such as wastewater, allow for solids from the water to settle out, and/or remove Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), nitrogen, Phosphorus, bacteria and/or pathogens, among other constituents. The water processing system can also often include an infiltration system comprising a leaching field downstream of any tank for receiving the water from the treatment tank, treating the water, and/or for discharging the water back to the environment for further treatment and groundwater recharge.
Some embodiments may use gravity dosing of infiltration fields, while some may employ pressure distribution and/or pressure dosing. Systems employing both gravity and pressurized distribution and/or dosing may also be employed in embodiments. In embodiments, pressure distribution systems can be outfitted with distal head monitoring ports, and these ports may also be utilized for cleaning the orifices. And, as shown in the accompanying figures, the rigid piping frame work can have a ladder configuration with the proximal and distal ends serving to provide a framework from which the leaching modules and internal piping can be supported.
As shown in
Preferred embodiments may provide quicker installations and more accurate placement of infiltration systems than conventional non-modular build-in-place systems. The exoskeleton support stakes can be utilized to fine tune the system elevation between the standoffs, if necessary, and to maintain desired separation between channels. The stakes may also be used to support more flexible conduits but may be less preferred for application s using rigid conduits. For example, when 1″ pipe is employed as a distribution conduit, stakes may be particularly preferred. In contrast, when 2″ pipe is employed as a distribution conduit, because this pipe is more rigid than 1″ pipe, stakes may not be preferred. Likewise, the stakes may be less important for larger pipe sizes, including 3″ and 4″ PVC pipes.
As shown in the Figures, a redistribution manifold may be positioned at or near the bottom of a leaching module. Like the upper distribution conduits, lower redistribution conduits can use either or both of gravity redistribution and pressurized redistribution. These redistribution designs can serve to redistribute water evenly between all or most channels, as well as provide one or more ports to measure ponding or otherwise observe a status of the system.
The lower conduits in embodiments may preferably serve to redistribute water and monitor water levels in the channel among other uses.
In use, the module may be installed in an excavation and supported at each end with temporary or permanent supports and may be backfilled from above or otherwise, such that the backfill treatment media interfaces with the upright outer surfaces of the geotextile wraps hanging down off of the distribution conduits. Once backfilled, the module may be covered with additional geotextile, soil, such as sand, a plastic impermeable cover, grass, pavers, and other materials as well. For oxygenation or other purposes, the module may be approximately six inches or more below finished grade, although other depths may be employed in embodiments.
The bottoms of the leaching channels may have various configurations in embodiments. These bottom configurations can include full sealed ends 170 where the outer and inner materials fully wrap around any lower redistribution conduit, open unsealed ends 171, where the inner and outer materials of the leaching channel are not fully continuous at the bottom of the channel, and open sealed ends 172, where inner and outer materials of the leaching channel are not fully continuous about any bottom distribution conduit but the outer material covers the inner material at the open end of the channel.
Also, visible in
The water processing system can include small-scale applications that may employ a treatment system that can often include a treatment tank which can include a septic, settlement or other treatment tank, or other septic tank; these tanks can receive water, allow for solids from the water to settle out, and remove Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), nitrogen, Phosphorus, bacteria, and/or pathogens, among other constituents. The water processing system can include an infiltration system comprising a leaching field with leaching modules as described herein. These tanks and fields can operate to treat the water and discharge the water back to the environment for further treatment and groundwater recharge. The leaching fields and leaching modules, when in operation, can serve to nitrify water and subsequent to nitrifying water, treat or partially treat it. At the same time or during subsequent steps, carbon sources may serve to denitrify the water being processed.
Inner and outer materials of the leaching channels may comprise geotextiles obtained from various manufacturers, and may include such geotextiles as Grasspave2, Gravelpave2, Rainstore2, Slopetame2, Draincore2, Surefoot4, Rainstore3 from Invisible Structures, Inc., 1600 Jackson Street, Suite 310, Golden, Colo. 80401, and Advanedge® flat pipe from Advanced Drainage Systems, Inc. 4640 Trueman Boulevard, Hilliard, Ohio 43026. Still further, inner and outer materials of the leaching channels may also comprise one or more geotextile comprising an irregularly coiled stringy structure contained between one or two layers of air-permeable sheeting, which layers may feel to the touch like thin felt. In embodiments, the geotextile may have only one layer and one side of that layer may have an irregularly coiled string plastic structure. In some leaching channel embodiments, no inner materials may be used, and in still other embodiments the inner material may only occupy a portion of the leaching channel. For example, the inner material may be present below the distribution conduit but not wrap around the distribution conduit. Still further embodiments may only employ an inner material present between upper and lower conduits and does not wrap around either upper or lower conduits. In addition, a flat pipe or other inner material may be poisoned below an upper conduit or between both conduits and the outer material and then may wrap around this combination of materials.
Still further, leaching modules may be installed in a vertical orientation such that the extended position reaches to a side of the distribution conduit and the leaching module. In embodiments where the orientation is primarily vertical, treatment media may be positioned between vertical or horizontal leaching channels, and during installation the treatment media may be placed from the bottom up of the excavation. Other orientations may also be employed.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a,” “an” and “the” are intended to include plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specific the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operation, elements, components, and/or groups thereof.
It should be noted that the terms “first”, “second”, and “third”, and the like may be used herein to modify elements performing similar and/or analogous functions. These modifiers do not imply a spatial, sequential, or hierarchical order to the modified elements unless specifically stated.
As used herein, the terms “about” or “approximately” in reference to a recited numeric value, including for example, whole numbers, fractions, and/or percentages, generally indicates that the recited numeric value encompasses a range of numerical values (e.g., +/−5% to 10% of the recited value) that one of ordinary skill in the art would consider equivalent to the recited value (e.g., performing substantially the same function, acting in substantially the same way, and/or having substantially the same result).
Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein
The description of the embodiments of the present invention has been presented for purposes of illustration and description but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill without departing from the scope and spirit of the invention. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for embodiments with various modifications as are suited to the particular use contemplated.