[0001] The present disclosure relates generally to the technical field of water purification
device. In particular, the present disclosure pertains to an improved graphene oxide based
water purification device.
BACKGROUND
[0002] Background description includes information that may be useful in understanding
the present invention. It is not an admission that any of the information provided herein is
prior art or relevant to the presently claimed invention, or that any publication specifically or
implicitly referenced is prior art.
[0003] Contamination of water bodies such as rivers, oceans, groundwater, lakes, and
aquifers usually results due to chemical waste generated during industrial, domestic and
agricultural activities. Furthermore, water contamination can include ranges from inorganic
waste to organic waste which can enhance levels of a pathogen, arsenic, bacteria, unwanted
salts, and iron in water. These can lead to deterioration people’s health, who are using
contaminated water for day to day activities such as drinking, bathing, and irrigation. A
common cause of water contamination can be thermal pollution, which can be caused due to
use of water as coolant in cooling towers installed at market complexes, industries, and power
plant. An elevated temperature of the water is caused due to heat exchange in the cooling
towers, decreases level of oxygen in water bodies thereby leading to alter food chain,
extinction of fishes, reduce number of species biodiversity, and promote invasion of
thermophilic (species living at relatively high temperature) organisms.
[0004] Water purification is removal of undesirable biological, chemicals, suspended
solids, and gases from contaminated water, making the water pure and disinfected for
consumption of human beings. Moreover, pure water can be used for various purposes
including pharmacological, medical, raw material, industrial, chemical industries, analytical
reagents, ingredient, processing, formulation, and manufacture of pharmaceutical products,
and compendia articles active pharmaceutical ingredients (APIs).
[0005] Traditional methods used for converting contaminated water into pure water can
include biological processes such as slow sand filters or biologically activated carbon;
physical methods such as sedimentation, filtration, and distillation; chemical processes such
as chlorination and flocculation; and use of electromagnetic radiation such as ultraviolet light,
3
and infrared method. Some more methods such as membrane separation, adsorption, ionexchange, amalgamation, and precipitation have been adopted to meet new set of standards
for purity of water. These methods are not sufficient for removal of unwanted salts, arsenic,
pathogens, bacteria, and are very complicated, costly processes for purifying the water.
[0006] There is, therefore, a need to provide a simple and cost-effective water purifying
device to facilitate removal of pathogens, arsenic, and unwanted salts.
[0007] As used in the description herein and throughout the claims that follow, the
meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates
otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on”
unless the context clearly dictates otherwise.
[0008] The recitation of ranges of values herein is merely intended to serve as a
shorthand method of referring individually to each separate value falling within the range.
Unless otherwise indicated herein, each individual value is incorporated into the specification
as if it were individually recited herein. All methods described herein can be performed in
any suitable order unless otherwise indicated herein or otherwise clearly contradicted by
context. The use of any and all examples, or exemplary language (e.g. “such as”) provided
with respect to certain embodiments herein is intended merely to better illuminate the
invention and does not pose a limitation on the scope of the invention otherwise claimed. No
language in the specification should be construed as indicating any non-claimed element
essential to the practice of the invention.
[0009] Groupings of alternative elements or embodiments of the invention disclosed
herein are not to be construed as limitations. Each group member can be referred to and
claimed individually or in any combination with other members of the group or other
elements found herein. One or more members of a group can be included in, or deleted from,
a group for reasons of convenience and/or patentability. When any such inclusion or deletion
occurs, the specification is herein deemed to contain the group as modified thus fulfilling the
written description of all groups used in the appended claims.
OBJECTS OF THE INVENTION
[0010] A general object of the present disclosure is to provide a water purification
device.
[0011] An object of the present disclosure is to provide a purification device that is based
on graphene oxide.
4
[0012] An object of the present disclosure is to provide a water purification device that
removes water contaminants like arsenic, pathogen, and bacteria.
[0013] An object of the present disclosure is to provide a water purification device that
removes unwanted salt, iron, cations, anions, and fluorides from water.
[0014] Another object of the present disclosure is to provide a water purification device
that is simple, cost-effective and does not involve complex routing for purifying
contaminated water.
SUMMARY
[0015] Aspects of the present disclosure relate to a water purification device. In
particular, the present disclosure pertains an improved graphene oxide-based water
purification device.
[0016] In an aspect, proposed water purification device includes a housing comprises a
base having an outlet port, side walls coupled with the base, and a top wall coupled to an
upper end of the side walls and having an inlet port to receive contaminated water to be
filtered.
[0017] In an aspect, at least one first layer, at least one second layer, at least one third
layer, and at least one fourth layer configured in the housing for filtering the received water;
wherein the at least one first layer comprises sediments to restrict flow of a first set of
contaminants of the received water; wherein the at least one second layer comprises an
adsorbent to absorb a second set of contaminants of the received water; wherein the at least
one third layer comprises micro fibre mesh to restrict passage of a third set of contaminants
of the received water; and wherein the at least one fourth layer comprises a foam to lower
Total Dissolved Solids (TDS) of the received water.
[0018] In an embodiment, the first layer, the second layer, the third layer, and the fourth
layer configured in the housing one after another, wherein the first layer is configured at the
top wall and the fourth layer is configured at the base.
[0019] In an embodiment, the third layer is configured above the fourth layer, and the
second layer is configured between the first layer and the third layer.
[0020] In an embodiment, the first set of contaminants is any or combination of solid
contaminants, and macro contaminants.
[0021] In an embodiment, the second set of contaminants is any or combination of
arsenic, cation, and anion contaminants.
[0022] In an embodiment, the third set of contaminants is micro contaminants.
5
[0023] In an embodiment, the outlet port is configured to carry the pure water at water
collection centre.
[0024] In an embodiment, the micro fibre mesh is made from bamboo fibre embedded
with silver treated rice husk.
[0025] In an embodiment, the adsorbent comprises silica coated with reduced graphene
oxide.
[0026] In an embodiment, the foam comprises any or combination of polyurethane foam,
polysulfone foam, wherein the foam is treated with graphene oxide.
[0027] Various objects, features, aspects and advantages of the inventive subject matter
will become more apparent from the following detailed description of preferred
embodiments, along with the accompanying drawing figures in which like numerals represent
like components.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The accompanying drawings are included to provide a further understanding of
the present disclosure, and are incorporated in and constitute a part of this specification. The
drawings illustrate exemplary embodiments of the present disclosure and, together with the
description, serve to explain the principles of the present disclosure.
[0029] FIG. 1 illustrates an exemplary representation of a water purification device, in
accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0030] The following is a detailed description of embodiments of the disclosure depicted
in the accompanying drawings. The embodiments are in such details as to clearly
communicate the disclosure. However, the amount of detail offered is not intended to limit
the anticipated variations of embodiments; on the contrary, the intention is to cover all
modifications, equivalents, and alternatives falling within the spirit and scope of the present
disclosure as defined by the appended claims.
[0031] Aspects of the present disclosure relate to a water purification device. In
particular, the present disclosure pertains an improved graphene oxide-based water
purification device.
[0032] In an aspect, proposed water purification device includes a housing comprises a
base having an outlet port, side walls coupled with the base, and a top wall coupled to an
6
upper end of the side walls and having an inlet port to receive contaminated water to be
filtered.
[0033] In an aspect, at least one first layer, at least one second layer, at least one third
layer, and at least one fourth layer configured in the housing for filtering the received water;
wherein the at least one first layer comprises sediments to restrict flow of a first set of
contaminants of the received water; wherein the at least one second layer comprises an
adsorbent to absorb a second set of contaminants of the received water; wherein the at least
one third layer comprises micro fibre mesh to restrict passage of a third set of contaminants
of the received water; and wherein the at least one fourth layer comprises a foam to lower
Total Dissolved Solids (TDS) of the received water.
[0034] In an embodiment, the first layer, the second layer, the third layer, and the fourth
layer configured in the housing one after another, wherein the first layer is configured at the
top wall and the fourth layer is configured at the base.
[0035] In an embodiment, the third layer is configured above the fourth layer, and the
second layer is configured between the first layer and the third layer.
[0036] In an embodiment, the first set of contaminants is any or combination of solid
contaminants, and macro contaminants.
[0037] In an embodiment, the second set of contaminants is any or combination of
arsenic, cation, and anion contaminants.
[0038] In an embodiment, the third set of contaminants is micro contaminants.
[0039] In an embodiment, the outlet port is configured to carry the pure water at water
collection centre.
[0040] In an embodiment, the micro fibre mesh is made from bamboo fibre embedded
with silver treated rice husk.
[0041] In an embodiment, the adsorbent comprises silica coated with reduced graphene
oxide.
[0042] In an embodiment, the foam comprises any or combination of polyurethane foam,
polysulfone foam, wherein the foam is treated with graphene oxide.
[0043] FIG. 1 illustrates an exemplary representation of water purification device 100, in
accordance with an embodiment of the present disclosure.
[0044] In an embodiment, water purification device 100 can be installed in areas where
there is a need for eliminating contaminants from water. As illustrated in FIG. 1, a first layer
102, a second layer 104, a third layer 106, and a fourth layer 108 can be configured in
housing one after another, wherein the housing can include a base, sidewalls, and a top wall.
7
In an exemplary embodiment, the first layer 102 can be configured at the top wall and the
fourth layer 108 can be configured at the base, and the third layer 106 can be configured
above the fourth layer 108, and the second layer 104 can be configured between the first layer
102 and the third layer 106.
[0045] In an embodiment, the first layer 102 can be made of sediments, the second layer
104 can be made of silica-coated with graphene oxide, the third layer 106 can be made of
bamboo fibre with silver treated rice husk, and the fourth layer 108 can be made from
polyurethane foam treated with graphene oxide are configured one after another in a housing
such that contaminated water from first layer 102 flows subsequently to fourth layer 108
thereby providing pure water through outlet port. In yet another embodiment, water
purification device 100 can be installed in various areas including rural areas, household or
domestic purpose, medical, and industrial areas.
[0046] In an embodiment, the water purification device 100 can include housing
consisting of a base having an outlet port, sidewalls, and a top wall, such that the base is
coupled with the sidewalls, and the top wall is coupled to the sidewalls and having an inlet
port to form an enclosed space. In another embodiment, the housing can be made from a
material including but not limited to stainless steel, mild steel, and plastic. In yet another
embodiment, the top wall of housing can be configured with inlet port, said inlet port receives
contaminated water from water sources such as groundwater, rivers, lakes, and reservoirs,
said water sources can be used to store the contaminated water. In yet another embodiment,
the inlet port can be made from any or combination of stainless steel, thermoplastic, extruded
aluminium, copper, steel, brass and Polyvinyl Chloride (PVC).
[0047] In an embodiment, the water purification device 100 can include the first layer
102 configured with the top wall of the housing. The first layer 102 consists of sediments to
restrict flow of solid contaminants and macro contaminants, and allow contaminated water to
flow through the first layer 102. In another embodiment, the first layer 102 can receive
contaminated water from the inlet port which is configured with the top wall of the housing.
[0048] In an embodiment, the water purification device 100 can include second layer 104
configured below the first layer 102 in the housing. The second layer 102 can be made from
adsorbent of reduced graphene oxide coated with silica, said second layer 102 can absorb
arsenic, cation, anion contaminants from the received water after first filtration. In another
embodiment, adsorbent can include nanocomposite combined with at least one metal
bounded with silica which can remove dyes from the contaminated water. The metal can
8
include but not limited to platinum, palladium, cobalt, gold, silver, manganese, chromium,
rhodium, iron, tellurium, copper, iridium, cerium, ruthenium, and molybdenum.
[0049] In an embodiment, the water purification device 100 can include third layer 106
configured after the second layer 104, the third layer 106 to receive contaminated water from
the second layer 104. The third layer 106 can be made from bamboo micro fibre mesh
embedded with silver treated rice husk, the third layer 106 adapted to restrict passage of
micro contaminants from the received water after second filtration. In another embodiment,
the third layer 106 can be selected from group consisting of a needle punched nonwoven
fabric, a bamboo charcoal nonwoven fabric, a spun lace nonwoven fabric, a spun-bonded
nonwoven fabric, nanosilver ion nonwoven fabric, an anion nano nonwoven fabric, a meltblown nonwoven fabric, or any combination thereof.
[0050] In an exemplary embodiment, the bamboo micro fibre mesh or bambusoideae
micro mesh fibre cross-section can have various micro-gaps which can block heavy, macro,
micro, and unwanted materials. Furthermore, bamboo micro fibres have antibacterial
elements, such as bio-agent and bamboo Kun, which can destroy bacteria from the received
water.
[0051] In an embodiment, the water purification device 100 can include fourth layer 108
configured at the base of the housing, the fourth layer 108 to receive contaminated water
from the third layer 106. The fourth layer 108 can be made up of polysulfone foam treated
with graphene oxide to lower Total Dissolved Solids (TDS) of the received water to level of
pure water. In another embodiment, the fourth layer 108 can be selected from group
consisting of, polytetrafluoroethylene, polypropylene, polyurethane, polystyrene, chitin,
copolymers, polyethylene polyacrylonitrile, cellulose, polysulfone, polyethersulfone,
polycarbonate, polyvinylidene fluoride, polyacrylate, chitosan, polyvinyl chloride thereof.
[0052] In another embodiment, outlet port can be configured with the base of the
housing, said outlet port is adapted to carry the pure water at a water collection centre. In
another embodiment, the outlet port can be manufactured with materials including but not
limited to polyvinyl chloride, stainless steel, stainless steel, iron, copper, and carbon steel.
[0053] It should be apparent to those skilled in the art that many more modifications
besides those already described are possible without departing from the inventive concepts
herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of
the appended claims. Moreover, in interpreting both the specification and the claims, all
terms should be interpreted in the broadest possible manner consistent with the context. In
particular, the terms “comprises” and “comprising” should be interpreted as referring to
9
elements, components, or steps in a non-exclusive manner, indicating that the referenced
elements, components, or steps may be present, or utilized, or combined with other elements,
components, or steps that are not expressly referenced. Where the specification claims refers
to at least one of something selected from the group consisting of A, B, C ….and N, the text
should be interpreted as requiring only one element from the group, not A plus N, or B plus
N, etc. The foregoing description of the specific embodiments will so fully reveal the general
nature of the embodiments herein that others can, by applying current knowledge, readily
modify and/or adapt for various applications such specific embodiments without departing
from the generic concept, and, therefore, such adaptations and modifications should and are
intended to be comprehended within the meaning and range of equivalents of the disclosed
embodiments. It is to be understood that the phraseology or terminology employed herein is
for the purpose of description and not of limitation. Therefore, while the embodiments herein
have been described in terms of preferred embodiments, those skilled in the art will recognize
that the embodiments herein can be practiced with modification within the spirit and scope of
the appended claims.
[0054] While the foregoing describes various embodiments of the invention, other and
further embodiments of the invention may be devised without departing from the basic scope
thereof. The scope of the invention is determined by the claims that follow. The invention is
not limited to the described embodiments, versions or examples, which are included to enable
a person having ordinary skill in the art to make and use the invention when combined with
information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE INVENTION
[0055] The present disclosure provides a water purification device.
[0056] The present disclosure provides a purification device that is based on graphene
oxide.
[0057] The present disclosure provides a water purification device that removes water
contaminants like arsenic, pathogen, and bacteria.
[0058] The present disclosure provides a water purification device that removes
unwanted salt, iron, cations, anions, and fluorides from water.
[0059] The present disclosure provides a water purification device
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[0060] Another object of the present disclosure is to provide a water purification device
that is simple, cost-effective and does not involve complex routing for purifying
contaminated water.

We Claim:

1. A water purification device, said device comprising:
a housing comprises a base having an outlet port, side walls coupled with
the base, and a top wall coupled to an upper end of the side walls and having an inlet
port to receive contaminated water to be filtered;
at least one first layer, at least one second layer, at least one third layer, and
at least one fourth layer configured in the housing for filtering the received water;
wherein the at least one first layer comprises sediments to restrict flow of a first set of
contaminants of the received water;
wherein the at least one second layer comprises an adsorbent to absorb a second set of
contaminants of the received water;
wherein the at least one third layer comprises micro fibre mesh to restrict passage of a
third set of contaminants of the received water; and
wherein the at least one fourth layer comprises a foam to lower Total Dissolved Solids
(TDS) of the received water.
2. The device as claimed in claim 1, wherein the first layer, the second layer, the third
layer, and the fourth layer configured in the housing one after another, wherein the
first layer is configured at the top wall and the fourth layer is configured at the base.
3. The device as claimed in claim 1, wherein the third layer is configured above the
fourth layer, and the second layer is configured between the first layer and the third
layer.
4. The device as claimed in claim 1, wherein the first set of contaminants is any or
combination of solid contaminants, and macro contaminants.
5. The device as claimed in claim 1, wherein the second set of contaminants is any or
combination of arsenic, cation, and anion contaminants.
6. The device as claimed in claim 1, wherein the third set of contaminants is micro
contaminants.
7. The device as claimed in claim 1, wherein the outlet port is configured to carry the
pure water at water collection centre.
8. The device as claimed in claim 1, wherein the micro fibre mesh is made from bamboo
fibre embedded with silver treated rice husk.
9. The device as claimed in claim 1, wherein the adsorbent comprises silica coated with
reduced graphene oxide.
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10. The device as claimed in claim 1, wherein the foam comprises any or combination of
polyurethane foam, polysulfone foam, wherein the foam is treated with graphene
oxide.