NZ742133B2 - Reconfigurable Leaching Module - Google Patents
Reconfigurable Leaching Module Download PDFInfo
- Publication number
- NZ742133B2 NZ742133B2 NZ742133A NZ74213318A NZ742133B2 NZ 742133 B2 NZ742133 B2 NZ 742133B2 NZ 742133 A NZ742133 A NZ 742133A NZ 74213318 A NZ74213318 A NZ 74213318A NZ 742133 B2 NZ742133 B2 NZ 742133B2
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- New Zealand
- Prior art keywords
- leaching
- module
- channels
- height
- conduits
- Prior art date
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 150
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims description 64
- 238000009826 distribution Methods 0.000 claims description 63
- 238000001764 infiltration Methods 0.000 claims description 44
- 238000009434 installation Methods 0.000 claims description 25
- 239000004746 geotextile Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims 4
- 238000000034 method Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000003466 anti-cipated Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
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- 229920003023 plastic Polymers 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 230000001717 pathogenic Effects 0.000 description 2
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Abstract
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. on and where the leaching channels may hang downwardly from the dosing conduits in the second extended position.
Description
_1702_USl
RECONFIGURABLE LEACHING MODULE
CROSS~REFERENCE TO RELATED APPLICATION
This application claims priority to US. 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
ation.
TECHNICAL FIELD
Processes, systems, apparatuses, and articles of manufacture involving
infiltration fields for use in residential, commercial, or industrial water
infiltration systems are provided herein. More ularly, reconfigurable
leaching modules, for use in a water ration field, Where the leaching
modules are reconfigurable from a first t orientation to a second enlarged
orientation, are provided herein.
BACKGROUND
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, sses, and industrial
facilities serviced by the municipality. Water infiltration systems can also be
designed and sized for single home ntial use and for small—scale
residential and commercial uses.
BRIEF SUMMARY
Embodiments may be directed to processes, apparatuses, systems, and
manufactures involving igurable ng 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 treahnent or other water
sing system. Modules may include distribution conduits hydraulically
353_1702_u51
coupled to ng channels Where the conduits and ls are connected
such that they may be moved as a unit from one place to another, i.e., the
ts and channels may be modular. The conduits and ls, 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 ent systems, may
comprise one or several of these leaching modules for use in a ng 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 e, some infiltration fields may have s 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 ed volume may occur because the leaching channels of the
modules comprising a r 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 s, 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.
353_1702_U51
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 ions in components of the leaching modules, the
infiltration fields, any surrounding Infiltration ent 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 , the
configuration of the infiltration fields themselves, and/or the configuration and
components of ration systems comprising the ng module(s), as well as
still other permutations.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
Figure 1 shows cross~sectional Views of leaching module components in
a ted position and an extended position as may be employed in each of
the modules disclosed herein as well as in other embodiments.
Figure 2 shows a perspective View of a dual manifold leaching module
where each leaching l comprises manifolded upper distribution
conduits and manifolded lower redistribution conduits as may be employed in
ments.
Figure 3 shows an upper manifold leaching module with six leaching
channels, six upper distribution conduits, and no lower redistribution conduits
as may be employed in embodiments.
Figure 4 shows the manifolded leaching module of Figure 3 in a
retracted position as may be employed in embodiments.
35337023151
Figure 5 shows a perspective View of the manifolded leaching module of
Figures 3 and 4, with a ld extension and a manifold riser as may be
employed in embodiments.
Figure 6 shows a perspective View of the dual—manifold leaching
module of Figure 2, where the upper distribution conduits are manifolded, the
lower redistribution conduits are manifolded, and the module also comprises
risers and a dual—manifold observation port as may be employed in
ments.
Figure 7 shows a side View of exoskeleton supports, and a partial cross—
sectional View of a n of a leaching channel, as may be employed in
embodiments.
Figure 8 shows two exoskeleton supports, connected to each other, as
may be employed in ments.
Figure 9 shows two leton supports prior to installation about
components of a leaching module, as may be employed in embodiments.
Figure 10 shows a multiple module infiltration field of an infiltration
system of a water processing system where the field employs various leaching
modules, including those of Figures 2~6 as described herein, as may be
employed in embodiments.
Figure 11 shows cross—sectional views of several leaching ls and
the positioning of inner materials and outer materials as may be employed in
embodiments.
ED DESCRIPTION
Embodiments may be ed to processes, apparatuses, and
manufactures in which reconfigurable modular leaching fields are involved.
Embodiments may include distribution conduits lically 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
353_1702_u51
connected channels are r. The conduits and channels, while le,
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 ed, 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
ents such as processing tanks, vents, valves, blowers, pumps, electronic
controllers, etc. A water sing system may treat or otherwise process water
having various sources including ater, 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 se 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 uration. 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
ng module may be sized and/or ise 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
02_U51
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 n number of ms, for example, one module may serve 1.5
bedrooms or two bedrooms or one bedroom, so when a bedroom is added, an
additional module, ated for that single m may be added.
In embodiments, the ng 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 ation system. The modules may be constructed offsite
and brought to an installation site in a retracted, or sed, 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
bution 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,
ed panel, or other ure with or without fabric or membrane and a
notable thickness, e.g., greater than approximately 1/ 8”), 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
ng 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
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ed 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 ably be hygroscopic or hygroscopically
treated. This outer al may encase the entire leaching channel or may
encase only portions of it. For example, as shown in Figure 1 the outer material
may cover the distribution conduit and the inner material but not the bottom end
in certain embodiments, while in other embodiments the full perimeter of a
leaching channel may be encompassed by outer material. In embodiments, a
preferred thickness for the three-dimensional geotextile may be approximately
0.5"—0.75"—1.5" —2" or so such that the treatment channels may have a weight and
stoutness that promotes long term flow of water as well as lation alignment
when moving the leaching ls from a first configuration to a second
configuration. When pipes are 3” in diameter, leaching channels can have
various thicknesses and can be 1"-8” in thickness or or more than 3" in thickness.
When pipes are 4” in diameter, leaching channels can have various esses
and can be 1”-4” in thickness or or more than 4" in thickness. The leaching
channels may have parallel side cross—sectional s, allel side cross—
nal profiles, a triangular cross~sectional profile or other cross-sectional
profiles. In some embodiments, as shown in Figure 11, the leaching channel may
be offset when hanging below the distribution conduit when in an extended
configuration. Other ed configurations can have the leaching channel
being more evenly distributed below the distribution channel when in an
extended configuration. The earlier, offset, orientation be considered a "P”
orientation while the later, more even, orientation may be considered more of a
”T” orientation. Other orientations are also possible in embodiments,
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
353_1702_USl
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 ls may comprise both external materials and internal als.
The internal materials and external als 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 tile, and some embodiments
may include a second or third or further internal material such as another
geotextile fabric as well as another geotextile. Still r combinations may
also be used in embodiments.
During installation, a support or a ity 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 ent of the ITM should provide
l 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 lished with little nt to the extended
leaching channels.
Various supports may be ed 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
353_1702_U51
installation. Some embodiments may employ combinations of permanent and
removeable supports.
Embodiments may comprise a rigid piping conduit ork, which
can serve to disperse water to high aspect ratio ng channels of the leaching
s. 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 dent 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 e leton support stakes that
snap over the leaching channels and internal distribution ts. These stakes
or other supports can be configured to m 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 ting 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 es for the
redistribution of water between most or all of the rows of ng channels.
Certain bottom interconnecting manifold designs may also be employed. These
bottom interconnecting embodiments, as well as other embodiments, may have
02_u51
an inspection port integrated into the manifold to r water levels or other
operational or maintenance es of the leaching channels. Inspection ports
can also be placed into lic 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 ent tank, treating the water, and/ or for
discharging the water back to the nment 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. s
employing both gravity and pressurized distribution and/ or dosing may also be
employed in ments. In embodiments, re distribution systems can
be outfitted with distal head ring 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
353__1702_U51
distal ends serving to provide a framework from which the leaching modules
and internal piping can be supported.
As shown in Figure 5, manifold risers may be employed in embodiments.
The top elevation of such risers can be configured with a saddle to hold the pipe
and may be set at a desired position such that an installed module may be held at
the correct installation elevation prior to the placement of ITM. In embodiments,
a plurality of manifold risers or standoffs may be employed and may be used to
determine and set module installed elevation. In so doing, the entire area
beneath the system does not need to be accurately graded as normal, rather just
the area of standoffs preferably should be set at invert grade for a proper
elevation and pitch to be set during installation. In avoiding the need to
accurately grade the entire area beneath the system during installation,
improvements in the speed of tion and grading may be realized. The soil,
such as sand, or other ITM may then be filled around the ng s to fill
in areas that are too low in ion and need ITM. Thus, manifold risers can
have various heights in the same installation in order to accommodate the
g and installation excavation requirements of the site. By having different
height ld risers, the modules can be ed or placed at an incline using
the standoffs and Without necessarily having the grading mimic the final top
slope or lack of slope of the support pipes or conduits and the modules.
red embodiments may provide quicker installations and more
accurate placement of infiltration systems than conventional non—modular build—
in-place systems. The leton support stakes can be utilized to fine tune the
system elevation between the ffs, 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 ts.
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
353_1702_u51
preferred. Likewise, the stakes may be less important for larger pipe sizes,
including 3" and 4” PVC pipes.
As shown in the s, 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 e ponding or otherwise observe a status of the system.
Figure 1 shows a side View of leaching module components in a retracted
position 100 and an extended position 150. As can be seen, the leaching channels
101404, may comprise various materials and may be closed loops or have open
ends. Various materials may be used to construct the leaching channels,
including geotextile, a flat pipe or flat pipe equivalent, flat panels, cuspated
panels, y structures, and flexible mats. As can be seen, the leaching
channels may comprise an outer material 142 and an internal material 140 that
can serve to give weight and substance to the leaching channel. In preferred
embodiments, the outer ace with the treatment media may comprise a
hygroscopic material and any inner material 140 may be porous or otherwise
allow water to pass h. The inner material may reside at various locations
of the ng channels. For example, in channel 103 the inner material does not
encircle the distribution conduit 130 while in ng channel 101 the inner
material does encircle the distribution conduit 130. Spacers 141 connecting
upper and lower conduits may also be used in embodiments and are shown in
Figure 1. Spacers 141 can serve to connect upper distribution conduits 130 and
lower ribution conduits 110, but can have other configurations as well. For
example, when a single t is present in the ng channel, the spacer can
dangle from the single conduit and provide sufficient weight such that gravity
serves to extend the spacer to its preferred or full length When the ng
module is installed. When the spacer is in this extended configuration, it can
353_1702_u51
place forces on the leaching l it supports and serve to extend the length of
the leaching channel as well. Soil, such as sand, or other ITM 160 may be placed
between the leaching channels, above the leaching channels, and below the
leaching ls of Figure 1 when these channels are installed.
The lower conduits in ments 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 lled 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 s of the ng 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.
Figure 2 shows a dual conduit leaching module where each leaching
channel has an upper distribution conduit and a lower redistribution conduit.
Labelled in Figure 2 are the dual manifold leaching module 200, leaching
Channels 101, upper tees 212, upper ld 210, lower manifold 240, outer
al 142, inner material 140, lower tees 242, inflow arrow 218, outflow arrow
219, upper distribution ts 130 and lower redistribution conduits 110. In
353_1702_u51
this and other ments, the upper distribution conduit 130 may be a pipe
that may serve as a dosing conduit while the lower redistribution t pipe
may be a pipe that serves as a collection conduit. Each of these conduits, both
the distribution and redistribution conduits in this and other embodiments,
preferably include a plurality of orifices within or around the leaching channels
(see, for example orifices shown in Figure 11 at 1111) through which water may
travel into and out of the conduits. The lower redistribution conduits may also
serve to pull or otherwise orient the ng channels into an extended position.
As can be seen in Figure 2, the lower ts can be centered or offset in the
leaching channels and can serve to pull them straight dOWn. In ments,
the lower distribution conduits may be off—center and serve to orient the leaching
channels on an angle other than 90°. In transit, the lower redistribution conduits
may rest near or be nested alongside the upper distribution conduits, in a
retracted two—dimensional arrangement for the leaching module. Then, when
ready to install, the lower ribution conduit may be released and d to
drop such that the leaching module takes on a three-dimensional arrangement
and occupies more space than in the retracted position.
Also, e in Figure 2 are exoskeleton spacers 261, which may be used to
maintain the distance between the dosing conduit and the lower conduit during
transport, during installation, after assembly, and at other times as well.
Moreover, one or more spacers may be removed in embodiments once its
spacing functionality has been satisfied. The s may comprise steel, iron, or
other metals or alloys. The spacers may comprise other materials as well. For
example, they may be polymer, carbon, glass, and/ or ard, among other
things.
Figure 3 shows a module with six distribution conduits and two upper
manifolds 210 as may be employed in embodiments. Each of the distribution
conduits passes though and supports a geotextile outer material 142 that is
configured to serve as a leaching channel 101. As can be seen, this outer material
353_1702_U51
142 hangs down from the distribution conduits about twelve inches or so and
s the length of the distribution conduit. Other hanging lengths for the
outer material may e about 6”, 24", 36", and 48". These lengths, because of
the orientation of the geotextile outer material 142 hanging off of the distribution
conduits, approximate the height of the leaching module in an extended position.
These s can also imate the height between support, or distribution,
conduits near the top of the modules and redistribution ts at the bottom of
the modules as shown in Figure 2. Other dimensions may also be possible. As
noted above and as can be seen in Figure 3 and in other Figures, the geotextile
outer material 142 may also cover an inner material 140 Where one or both of
these materials may be , membrane, and/ or other hygroscopic or non—
hygroscopic materials. The exoskeleton supports 301 may be employed to
support the leaching modules during installation such that an invert elevation
may be set at the top or bottom of the supports 301 and this elevation may be
relied upon for the invert elevation of the installed s rather than needing
to rely on any specific grading inverter elevation below the installed module.
Because of the ability to set invert elevations with the supports 301, during
installation, the modules may be rested on the supports 301 and then backfilled
with ITM or other material without the ity to carefully grade any ITM or
other material below the placed module. Supports 301 may be removed after
backfilling, or may remain in place. Also labeled in Figure 3 at 302 is an example
of a leaching channel where the inner materials touch each other.
Figure 4 shows the manifolded ng module of Figure 3 as may be
employed in embodiments. The module of Figure 4 shows the module of Figure
3 in a collapsed, or retracted, position. As can be seen, the leaching channels 101
rest near the distribution conduits and provide negligible, if any, additional
height to the module when in the collapsed position. This collapsed position
may be referred to as a two—dimensional ation because the height
ion is in a contracted position.
353_1702_U51
Figure 5 shows a module with a manifold riser 280 and manifold
extension 281 as may be employed in embodiments. This riser 280 and extension
manifold 281 may be used to add head to water entering the module such that
ient gravitational pressure may be present to move the water down the
entirety or the majority of the length of each of the distribution conduits and
along the entirety or the majority of the length of the leaching channels 101. As
can be seen, the manifold riser 280 may be comprised of the same size and type
of pipe as the distribution conduits. In embodiments, however, other materials
and sizes may be used for both the manifold, and for the distribution conduits.
A manifold riser may also be directly coupled to a bution conduit without
the use of an additional manifold as shOWn in Figure 5. Also labeled are
exoskeleton spacers 261 and distribution conduits 130.
Figures 3 and 5 show two exoskeleton supports 301 as may be employed
to support the module during installation. The supports shown are positioned at
the ends of the distribution conduits and may be beveled or otherwise cutout to
seat the connector ns of the dosing conduits. During installation, after a
final grade for the leach field invert is known, or at other times as well, the
supports 301 may be placed in the excavation and the module may be set atop of
the supports. In so doing the leaching ts may hang downward, in a near
final positioning and be ready for backfill. These supports 301 may be the same
height and may have different heights as well. When the same , the
supports 301 may be installed at different elevations, which may be performed
by g the supports deeper into the ground. This type of forcing can add
ity to the t and can serve to maintain an upright orientation for
subsequent mounting of a ng module. Alternatively, supports having
differing heights may be used. However achieved, the different s may be
used to level a module or series of modules when the excavation inverter
elevation is sloped. The different heights may also be used to create a target
slope for one or more modules different than the slope of the excavation in which
353_1702_u51
the module may be installed. Also, steel, or other metal, exoskeleton spacers 261
can provide iron around the system modules, this iron can assist in preventing
phosphorus migration.
Figure 6 shows how the upper distribution conduits may be manifolded
for connection to each other and for connecting to an input, an output, a
sampling port, and for other reasons as well. Labelled in Figure 6 are: dual
manifold observation port 620, single riser 610, which may serve as clean out or
distal head ports to measure pressure at that end of an infiltration field, outer
material 142, ITM 280, lower tee 242, and lower manifold 240. Figure 6 may be
considered to show a module of Figure 2 that has been ed with single
risers 610 and an observation port 620.
Figures 2, 5, and 7—9 show exoskeleton s 261 as may be employed to
maintain distances between leaching channels of the same module or adjacent
modules. These spacers may also be used to support the s during
installation in addition to or in place of the supports 301 shown in s 3 and
. As can be seen, the exoskeleton spacers may be in the configuration of a
”wire”, and may have an anchor loop that serves to grab a distribution conduit
of a ng channel. The exoskeleton spacer is also shown with a leg portion
730 that extends down along the leaching conduit and an arm portion 710 that
reaches the leg of the next wire spacer 261 and may connect to a er 720.
This configuration may be said to mimick a shepherd's hook. As can also be seen,
other configurations can be employed for the exoskeleton spacers. The leg
portions 730 may have lengths prescribed to set the invert elevation of an
installed . Adjacent modules may have different leg portion lengths so
that invert elevations between these adjacent modules can be different at an
installation site. Length ”D” shows g between spacers of nt leaching
channels. 'Also labeled in Figure 7 is ITM 230. Figure 9 also shows an
exoskeleton spacer before installation
353_1702_us1
Figure 10 shows an ew on how modules may be connected er
in an infiltration system of a water sing system. As can be seen, a supply
line 1020 may supply modules in series and/ or in parallel. And the modules
may be further coupled to other modules, to downstream treatment systems
1030, to recirculate water, to vents 1040, and to other outputs as well. s
involving modules may also include clean~outs for replacing or servicing
denitrification media or for other purposes as well. The modules may contain
various types of ng channels as shown in Figure 10. Valves 1010 are also
labelled in Figure 10. Also labeled in Figure 10 are leaching charmels 4,
distribution conduits 130, manifold riser 280, manifold extension 281, and
observation port 620.
The water processing system can include small—scale applications that
which
may employ a treatment system that can often e a treatment tank
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
ng 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 sed.
Inner and outer materials of the leaching channels may comprise
‘tiles obtained from various manufacturers, and may include such
geotextiles as Grasspave2, GravelpaveZ, Rainstore2, Slopetame2, Draincore2,
Surefoot4, Rainstore8 from Invisible Structures, Inc, 1600 Jackson Street, Suite
353_1702_u51
310, Golden, CO 80401, and Advanedge® flat pipe from Advanced Drainage
Systems, Inc. 4640 Trueman Boulevard, rd, OH 43026. Still further, inner
and outer als 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 theleaching 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.
Figure 11 shows various cross—sectional views of leaching channels as
may be employed in ments. Distribution conduits 130 are shown.
Cross—sections C and D also each include redistribution t 110. Cross—
sections A and C show a "P" type cross section while cross—sections B and D
show a “T” type cross—section. Dosing orifices 1111 are labelled in Figure 11 as
well. As noted above and as shown in Figure 11, the inner material 140 and
outer material 142 of a ng channel may have s combinations and
orientations, and these orientations may occur r a ribution
conduit is present or is not present. The inner material may wrap around the
distribution conduit as in D or may only be present below the bution
conduit as in A, B, and C. The "P” configuration, where the leaching channel is
offset from the bution conduit can have offsets to the left or right of the
channel (although only right offsets are illustrated in Figure 11).
353_1702_U$1
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 ily vertical,
treatment media may be oned between vertical or horizontal leaching
ls, and during installation the ent media may be placed from the
bottom up of the excavation. Other orientations may also be employed.
[54.] 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,II II 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 ising,” When used in
this specification, specific the presence of stated es, integers, steps,
ions, 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 ” or ”approximately” in reference to a
recited c value, including for example, Whole numbers, fractions, and/ or
percentages, generally indicates that the recited c 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 dually to each separate value falling
35337024151
within the range, unless otherwise indicated herein, and each separate value is
orated into the specification as if it were individually recited herein
The ption 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 n the
principles of the invention and the practical application, and to enable
others of ordinary skill in the art to understand the ion for
embodiments with various modifications as are suited to the particular use
contemplated.
THE
Claims (16)
1. A reconfigurable leaching module comprising: a plurality of distribution conduits, each bution conduit of the plurality having a plurality of fluid exit orifices; and a plurality of ng channels, each leaching channel positioned in fluid communication with at least one exit orifice of at least one of the distribution conduits of the plurality, wherein each of the leaching channels in the plurality is reconfigurable from a first ted position to a second extended position, and wherein each of the leaching channels hangs downwardly off of at least one of the distribution conduits when in the second extended position.
2. The module of claim 1 further comprising: a plurality of collection pipes or redistribution pipes wherein one or more of the tion pipes or redistribution pipes of the plurality is oned in a leaching channel of the plurality of leaching channels and wherein two or more of the collection pipes or redistribution pipes are manifolded together.
3. The module of claim 1 wherein each of the leaching channels has a first height when in the first retracted position and a second height when in the second extended position, the first height different than the second height.
4. The module of claim 1 wherein each of the leaching channels has a height to width cross-sectional aspect ratio in the range of 3 to 96.
5. The module of claim 3 n each of the leaching channels has a height to width cross-sectional aspect ratio when at the second height in the range of 3 to 96.
6. The module of claim 1 further comprising: a manifold, the ld fluidly coupled to two or more of the distribution conduits, the manifold having a riser with an input, the riser extending away from the manifold, and the input configured to receive water for distribution to one or more of the distribution conduits.
7. The module of claim 1 further comprising: a plurality of exoskeleton supports, each support having an arm and a leg, the leg connected to r support, the leg having a length equal to or greater than a height of any of the leaching ls when the leaching channels are g downwardly in the second extended position.
8. The module of claim 6 wherein each of the exoskeleton supports is positioned around an external surface of one or more of the leaching channels and has a configuration mimicking a shepherd's hook.
9. The module of claim 1 wherein a first leaching l of the plurality has a geotextile outer material and an open bottom with sealed ends.
10. The module of claim 1 wherein a first leaching channel of the plurality has a geotextile outer material and an open bottom with unsealed ends.
11. The module of claim 1 wherein a first leaching channel of the plurality has a geotextile outer material and a geotextile inner material, the inner material having a thickness at least five times r than the outer material.
12. The module of claim 1 wherein each of the leaching channels in the plurality is reconfigurable from a first retracted on to a second ed position without changing a length of a bution conduit in fluid communication with the ng channels.
13. An infiltration field of a water processing system comprising: a first reconfigurable leaching module comprising: a plurality of distribution conduits, the distribution conduits each having a length and each configured with a plurality of water dosing orifices along the length; and a plurality of leaching channels, each of the channel of the plurality of leaching channels in fluid communication with at least one water dosing orifice of at least one of the distribution conduits, wherein the ve configuration between the distribution conduits and the ng channels of the first reconfigurable leaching module is reconfigurable from a first low-profile configuration having a first height prior to installation to a second highprofile configuration having a second height after installation, the second height being greater than the first .
14. The infiltration field of the water processing system of claim 13 wherein the lowprofile configuration is a shipping configuration.
15. The infiltration field of the water processing system of claim 13 wherein each distribution conduit of the plurality of bution conduits is manifolded together.
16. The infiltration field of the water processing system of claim 15 wherein the manifolded plurality of distribution conduits forms the first reconfigurable leaching module, the ng module configured for movement as a unit prior to installation in the infiltration field.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762502082P | 2017-05-05 | 2017-05-05 | |
US62502082 | 2017-05-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ742133A NZ742133A (en) | 2021-01-29 |
NZ742133B2 true NZ742133B2 (en) | 2021-04-30 |
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