Decontamination rinse wastewater management system for use with a shower facility

Abstract

A decontamination rinse wastewater management system for use with a shower facility has a containment assembly with a first compartment and a second compartment integrally connected together, and a diverter valve having an inlet, a first outlet and a second outlet. The first outlet is directed to the first compartment. The inlet of the diverter valve is adapted to receive wastewater from the shower facility. The second outlet of the diverter valve is adapted to be connected to a sewer. The diverter valve is actuatable so as to move to a first position wherein wastewater from the shower facility is directed to the first compartment and to move to a second position wherein wastewater from the shower facility is directed to the sewer. The diverter valve is positioned in the second compartment of the containment assembly.

Claims

1. A decontamination rinse wastewater management system for use with a shower facility, the decontamination rinse wastewater management system comprising: a containment assembly having a first compartment and a second compartment integrally connected together, the first compartment being of a double-wall construction in which an inner wall is positioned interior of an outer wall so as to define an annulus therebetween; a diverter valve having an inlet and a first outlet and a second outlet, the first outlet being directed to the first compartment, the inlet of said diverter valve adapted to receive wastewater from the shower facility, the second outlet of said diverter valve adapted to be connected to a sewer, said diverter valve being actuatable so as to move to a first position wherein wastewater from the shower facility is directed to the first compartment and to move to a second position wherein wastewater from the shower facility is directed to the sewer, said diverter valve being positioned in the second compartment of said containment assembly; a controller connected to said diverter valve so as to move said diverter valve between the first and second positions; and a leak detector positioned in the annulus between the inner wall and the outer wall of the first compartment, said leak detector adapted to sense a presence of a liquid in the annulus.

2. The decontamination rinse wastewater management system of claim 1, said first compartment having a single wall extending in a generally cylindrical configuration, the first outlet of said diverter valve extending, through the single wall into an interior of the first compartment.

3. The decontamination rinse wastewater management system of claim 1, said diverter valve comprising: a valve body: a first pipe connected to said valve body and extending in a direction toward the shower facility, said first pipe being the inlet of said diverter valve or being connected to the inlet of said diverter valve; a second pipe connected to said valve body and extending of outwardly of the second compartment, said second pipe adapted to be connected to the sewer; and a third pipe connected to said valve body and extending outwardly of the second compartment and into the first compartment, said third pipe adapted to discharge rinse water from the shower facility into the first compartment.

4. The decontamination rinse wastewater management system of claim 3, the second compartment having a sump pump on an interior thereof, the sump pump being connected to the second pipe, the sump pump adapted the pump a liquid in the second compartment toward the sewer.

5. The decontamination rinse wastewater management system of claim 1, said containment assembly being formed of a material selected from the group consisting of fiberglass, steel and concrete.

6. The decontamination rinse wastewater management system of claim 1, further comprising: a level sensor affixed within the first compartment, said level sensor adapted to detect a level of the wastewater in an interior of the first compartment; a water sensor positioned in an interior of the second compartment, said water sensor adapted to sense a presence of water in the second compartment; and an electrical junction box connected to said leak detector and to said level sensor and to said water sensor, said electrical junction box being in communication with said controller.

7. A decontamination rinse wastewater management system for use with a shower facility, the decontamination rinse wastewater management system comprising: a containment assembly having a first compartment and a second compartment integrally connected together; a diverter valve having an inlet and a first outlet and a second outlet, the first outlet being directed to the first compartment, the inlet of said diverter valve adapted to receive wastewater from the shower facility, the second outlet of said diverter valve adapted to be connected to a sewer, said diverter valve being actuatable so as to move to a first position wherein wastewater from the shower facility is directed to the first compartment and to move to a second position wherein wastewater from the shower facility is directed to the sewer, said diverter valve being positioned in the second compartment of said containment assembly; and a controller connected to said diverter valve so as to a move said diverter valve between the first and second positions, the first compartment having a first riser extending from an upper portion thereof, the second compartment having a second riser extending from an upper portion thereof, each of the first and second risers adapted to allow access to an interior of the first and second compartments, respectively.

8. A wastewater management system comprising: a shower facility having a drain, the drain adapted to pass water from the shower facility outwardly of the shower facility; a containment assembly having a first compartment and a second compartment integrally connected together; a diverter valve having an inlet and a first outlet and a second outlet, the first outlet being directed to the first compartment, the inlet of said diverter valve connected to the drain of said shower facility so as to receive the water from said shower facility, the second outlet of said diverter valve adapted to be connected to a sewer, said diverter valve being actuatable so as to move to a first position wherein water from the shower facility is directed to the first compartment and to move to a second position wherein water from the shower facility is directed to the sewer, said diverter valve being positioned in the second compartment, said diverter valve comprising: a valve body; a first pipe connected to said valve body and extending in a direction toward said shower facility, said first pipe being connected to the drain of said shower facility, said first pipe being connected to the inlet of said diverter valve or being the inlet of said diverter valve; a second pipe connected to said valve body and extending outwardly of the second compartment, said second pipe adapted to be connected to the sewer; and a third pipe connected to said valve body and extending outwardly of the second compartment and into the first compartment, said third pipe adapted to discharge the water from said shower facility into the first compartment , the second compartment having a sump pump on an interior thereof, the sump pump being connected to the second pipe, the sump pump adapted to pump a liquid in the second compartment toward the sewer; and a controller connected to said diverter valve so as to move said diverter valve between the first and second positions.

9. The wastewater management system of claim 8, the first compartment having a single wall extending in a generally cylindrical configuration, the first outlet of said diverter valve extending through the single wall into an interior of the first compartment.

10. The wastewater management system of claim 9, the first compartment being of a double wall construction in which an inner wall is positioned interior of an outer wall so as to define an annulus therebetween.

11. The wastewater management system of claim 10, further comprising: a leak detector positioned in the annulus between the inner wall and the outer wall of the first compartment, said leak detector adapted to sense a presence of a liquid in the annulus.

12. The wastewater management system of claim 11, further comprising: a level sensor affixed within the first compartment, said level sensor adapted to detect a level of the water in an interior of the first compartment; a water sensor positioned in an interior of the second compartment, said water sensor adapted to sense a presence of water in the second compartment; and an electrical junction box connected to said leak detector and to said level sensor and to said water sensor, said electrical junction box being in communication with said controller.

13. The wastewater management system of claim 8, the first compartment having a first riser extending from an upper portion thereof, the second compartment having a second riser extending from an upper portion thereof, each of the first and second risers adapted to allow access to air interior of the first and second compartments respectively.

14. The wastewater management system of claim 8, said containment assembly being formed of a material selected from the group consisting of fiberglass, steel and concrete.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) FIG. 1 is a diagrammatic illustration of a prior art decontamination rinse system.

(2) FIG. 2 is a diagrammatic illustration of another prior art decontamination rinse system.

(3) FIG. 3 is a diagrammatic illustration of the decontamination rinse wastewater management system of the present invention.

(4) FIG. 4 is a partial cutaway view of the containment assembly as used in the decontamination rinse wastewater management system of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(5) Referring to FIG. 3, there is shown the decontamination rinse wastewater management system 60 in accordance with the teachings of the present invention. This decontamination rinse wastewater management system 60 has many features in common with the previous embodiments, as shown in FIGS. 1 and 2. In particular, the decontamination rinse wastewater management system 60 includes a rinse shower room 61 having a potable shower system 62 positioned in an interior thereof. A floor drain system 63 is located at the bottom of the rinse shower room 61. A wastewater drain line 64 opens to the floor drain system 63 and extends so as to allow the wastewater from the rinse shower room 61 to be transferred out of the rinse shower room 61 toward the decontamination rinse wastewater management system 60.

(6) As can be seen, the wastewater drain line 64 includes a conduit 64a that extends outwardly of the rinse shower room 61. Conduit 64a includes a portion 64d that allows gases to escape from the wastewater drain line 64. Portion 64b extends to pipe clean out. The actual wastewater will flow on conduit portion 64c toward a containment assembly 65. The containment assembly 65 includes a first compartment 66 and a second compartment 68. A diverter valve 70 has an inlet 72 that is connected to the conduit portion 64c of the wastewater drain line 64. The diverter valve 70 has a first outlet 74 directed to the first compartment 66. The diverter valve 70 also has a second outlet 76 that is adapted to extend to a sewer. The diverter valve 70 is actuatable so as to move to a first position wherein the wastewater from the rinse shower room 61 and the potable shower system 62 is directed to the first compartment 66 and moved to a second position when the wastewater from the rinse shower room 61 is directed to the sewer. The diverter valve 70 is positioned within the interior of the second compartment 68.

(7) The first compartment 66 is considered to be a wet compartment. The second compartment 68 is considered to be a dry compartment.

(8) In FIG. 3, it can be seen that the containment assembly (including the first compartment 66 and the second compartment 68) are integrally connected together. As such, since these compartments 66 and 68 are integrally connected together, the containment assembly 65 can be shipped and deployed as a single unit. The present invention avoids the need for separate components to be developed, installed, and linked together. The containment assembly 65 can be manufactured and shipped with the diverter valve 70 already installed within the second compartment 68. The inlet 72 of the diverter valve 70 can be installed as a pipe extending outwardly of the second compartment 68. The first pipe 74 can be preinstalled as extending through the second compartment 68 and extending through an opening in the wall of the first compartment 66 such that the second pipe associated with the diverter valve 70 opens to the interior of the first compartment 66. Similarly, a third pipe associated with the second outlet 76 of the diverter valve 70 can be preinstalled so as to extend outwardly of the second compartment 68 and ultimately extend so as to connect to a sewer. When the diverter valve 70 is in the first position, the wastewater from the rinse shower room 61 will flow through the wastewater drain line 64, through the first pipe associated with the inlet 72, through the diverter valve 70 and ultimately drain into the first compartment 66. When the diverter valve 70 is moved to the second position, any wastewater flowing from the rinse shower room 61 through the floor drain system 63 and the wastewater drain line 64 will be diverted so as to flow outwardly to the sewer.

(9) In FIG. 3, it can be seen that the first compartment 66 can be either of a single wall construction in the form of a cylinder or it can be a double-wall construction. The double wall construction has an inner wall 80 and an outer wall 82. The space between the inner wall 80 and the outer wall 82 defines an annulus 84. A leak detector 86 is positioned in the annulus 84. Leak detector 86 determines if there is a leakage through the inner wall 80 into the annulus 84. Ultimately, this leak detector 86 can be connected to an electrical junction box 88. A sump pump 90 is located near the bottom of the first compartment 66. Sump pump 90 serves to pump liquids residing on the interior of the first compartment 66 to the sewer if the contents are determined to be free of contaminants.

(10) First compartment 66 further includes a tank level sensor 92 and a pump-out port 94. Tank level sensor 92 detects the level of liquid within the interior of the first compartment 66. The pump-out port 94 allows contaminated material within the interior of the first compartment 66 to be removed by specialized personnel.

(11) The second compartment 68 has the diverter valve 70 positioned therein. A sump pump 96 is positioned at the bottom of the second compartment 68. Sump pump 96 serves to pass any liquids that might reside at the bottom of the second compartment 68 outwardly to the pipe associated with the second outlet 76 of the diverter valve 70 and ultimately passed toward the sewer.

(12) A controller 100 is illustrated as mounted to the rinse shower room 61. Controller 100 can also be located any other convenient location. Controller 100 is connected by suitable communication lines (electrical, optical, or transmitter/receiver) to the electrical junction box 88 on the first compartment 66 and to an electrical junction box 102 on the second compartment 68. As such, the necessary information pertaining to the status of conditions within the first compartment 66 and the second compartment 68 can be communicated to users of the rinse shower room 61.

(13) FIG. 4 illustrates the configuration of the containment assembly 65. It can be seen that the containment assembly 65 is buried within the earth 104. The first compartment 66 is illustrated as connected to the second compartment 68. The first compartment 66 includes a riser 106 that extends upwardly so as to have a cover 108 opening slightly above the ground surface 104. The second compartment 68 also includes a riser 110 at the top thereof Riser 110 extends upwardly so as to open slightly above the ground surface 104. A cover 112 extends over the second riser 110 associated with the second compartment 68.

(14) FIG. 4 shows the diverter valve 70 as positioned within the second compartment 68. The diverter valve 70 includes a pipe 114 that extends to the sewer. Pipe 116 extends to the first compartment 66 and opens to the first compartment 66. Another pipe extending from the diverter valve 70 will extend to the conduit portion 64c associated with the wastewater drain line 64. Each of the risers 106 and 110 allow access to the interior of the separate compartment 66 and 68.

(15) FIG. 4 shows the first compartment 66 and second compartment 68 as being of a heavy-duty fiberglass structure. Within the concept of the present invention, the first compartment 66 and the second compartment 68 can also be of a steel or concrete construction. The leak detection sensor 84 is illustrated as positioned adjacent to the bottom 120 of the first compartment 66. The line from the leak detection sensor 84 extends through a pipe to the top of the first compartment 66. A suction port 122 also extends downwardly so as to open adjacent to the bottom 120 of the first compartment 66. Suction port 122 allows any waste materials within the interior of the first compartment 66 to be removed therefrom by qualified personnel. A level sensor 124 is shown as positioned within the interior of the second compartment 68. Level sensor 124 will be indicative of the accumulation of liquid within the interior of the second compartment 68. An ultrasonic level sensor 126 is positioned on the interior of the first compartment 66. Ultrasonic level sensor 126 determines the level of liquid within the first compartment 66. If the level of liquid within the first compartment 66 is too high, it will be time for qualified personnel to be called in order to effectively remove the waste material from the interior of the first compartment 66.

(16) The present invention is a practical use of decontamination rinse facilities in order to enhance the utilization of such facilities in an eco-friendly and sustainable manner. The present invention includes a wastewater holding tank system for the containment of contaminated wastewater. The system is engineered to protect sewer systems and building occupants by intercepting and storing hazardous wastewater discharged from patient decontamination rinse showers, rinsing activities or biohazard isolation activities. The present invention prevents hazardous substances from entering the public sewer system. The present invention is engineered to protect sewer systems and building occupants by intercepting and storing hazardous waste pool water discharged from decontamination rinse showers and rinsing activities.

(17) The present invention provides a unified system having multiple compartments and including a wet compartment and a dry compartment. The wet compartment serves as the containment tank and provides for storage of the decontamination wastewater. The dry compartment houses a three-way diverter valve and associated piping. The containment tank can be provided with a single wall or a double wall. The double-wall design provides secondary containment in the case of a leak of the primary tank. The double-wall construction also allows for leak detection.

(18) The dry compartment serves as the valve vault and will house the diverter valve and associated piping. The diverter valve is an innovative feature that allows for greater utilization by hospital facilities. Hospital personnel can direct the wastewater discharged either the sanitary sewer (for general purpose rinsing) or to the containment tank for patient decontamination rinse activities. The present invention includes a management control system that allows the facility to monitor water level, leak detection, diversion valve control, and enable tank contents to be pumped into the sewer. The system will allow ultimate user management and maximum medical facility utilization. The system includes clean-out ports for the emptying and disposal of the containment tank.

(19) Ultimately, the present invention provides a complete system with the containment tank and diverter vault. The tank and vault materials are constructed in either fiberglass, steel or concrete. The tank/vault materials are non-permeable and chemical-proof. The present invention provides a compact configuration and a relatively small footprint. The present invention is very easy to install. Ultimately, the present invention can be obtained from a single supplier instead of multiple suppliers. The size of the present invention, along with the single source for the present invention, serves to reduce freight costs. The present invention can be utilized on either below-ground or above-ground conditions. The size of the tanks can range from 500 to 10,000 gallons. The present invention provides a control system with high-level leak detection. The covers associated with the risers of the present invention provide watertight, pressure, and traffic-duty access covers. The present invention provides easy installation and maintenance. The present invention as an integrated diverter valve system. Each of the compartments of the present invention has non-porous surfaces for easy cleaning The result of the present invention is that it maximizes utilization of rinse areas by allowing sewer discharge of non-hazardous rinse activities. The present invention can further include sampling stations, discharge pumps, pump ports, discharge sewer valves, remote nurse station alarms, and HEPA event filtration.

(20) The present invention has various control system operation modes. In a Normal Mode wastewater is directed to the sanitary sewer. Rinse water is not used for patient decontamination rinse activities. It is allowed to drain into the sanitary sewer. All wastewater from rinse activities will drain via the floor drain to the sanitary sewer.

(21) Another mode is the patient decontamination rinse mode. The activation of the Patient Decontamination Rinse Mode would occur only when the water is actually being used for patient decontamination rinse activities. The wastewater may contain hazardous substances and should not enter the sewer. Instead, the wastewater is directed to the containment tank. All wastewater from rinse activities will drain via the floor drain to the containment tank. Wastewater is stored there until proper disposal occurs by professional wastewater service companies. The activation of this Patient Decontamination Rinse Mode can be automatic (based on fresh water flow) or manual (based on user activation). When activated, a signal is sent to the system management panel where the diverter valve changes position and wastewater flows to the containment tank. All fluids are retained in the containment tank. The diverter valve will remain in this state until the diverter valve is directed to return to the normal position (i.e. draining to the sewer).

(22) The present invention also includes a Manual Mode. In this Manual Mode, the user can choose wastewater drainage to the sewer or to the wastewater tank. There can also be a Tank Pump Mode. This allows the user to activate the tank pump to discharge wastewater from the tank to the sanitary sewer. Wastewater that has been tested to ensure that no hazardous contaminants exist that can be disposed safely into the sanitary sewer.

(23) The foregoing disclosure and description of the invention is illustrative and explanatory thereof. Various changes in the details of the illustrated construction can be made within the scope of the appended claims without departing from the true spirit of the invention. The present invention should only be limited by the following claims and their legal equivalents.