Effluent treatment apparatus

• US 6,042,721 A
• Filed: 07/23/1997
• Issued: 03/28/2000
• Est. Priority Date: 07/23/1997
• Status: Expired due to Term

• Current Assignee: Fabco Industries, Inc.
• Original Assignee: Fabco Industries, Inc.
• Inventors: Peters, John Jr., McManus, James Lee
• Primary Examiner(s): Savage, Matthew O.
• Application Number:
  US08/899,236
• Time in Patent Office: 979 Days
• Field of Search: 210/91, 210/138, 210/195.1, 210/196, 210/340, 210/341, 210/130, 210/167, 210/248, 210/253, 210/257.1, 210/258, 210/416.1, 210/424, 210/143, 210/85, 210/436
• US Class Current: 210/85
• CPC Class Codes: B01D 37/00 Processes of filtration processes specially adapted for filtering gases B01D46/00
• CPC Class Codes: C02F 1/004 using large scale industrial sized filters
• CPC Class Codes: C02F 1/008 Control or steering systems not provided for elsewhere in subclass C02F
• CPC Class Codes: C02F 1/281 using inorganic sorbents
• CPC Class Codes: C02F 2209/006 comprising a software program or a logic diagram
• CPC Class Codes: C02F 2209/40 Liquid flow rate
• CPC Class Codes: C02F 2301/046 Recirculation with an external loop

Abstract

An effluent treatment apparatus, and associated methods of use, are provided for treating in a closed-loop configuration a volume of effluent contained in a holding vessel. The apparatus includes one or more treatment tank units arranged to hold a volume of molecular filtering material capable of removing one or more toxic contaminants from the effluent, al least in part, as the effluent contacts the surface areas of the molecular filtering material within each tank unit. A pump unit is provided to draw effluent from the holding vessel and deliver the effluent to selected tank units to effect treatment. The apparatus further includes fluidic conduit structures to fluidically couple the holding vessel, a pre-filter, the pump, and each selected tank unit. The conduit structure forms a closed-loop wherein effluent drawn from the holding vessel is pre-filtered, delivered to each selected tank unit, treated by contacting the molecular filtering material as the effluent flows through the tank unit, and returned to the holding vessel, repeatedly as required for treatment of the volume of effluent. A pressure regulation and bypass arrangement coupled via the conduit structure in a shunting configuration with respect to the tank units may also be provided with the invention to enable the pressure at which the treatment in the tank unit is conducted to be maintained at or below a pre-selected pressure level, even when the flow of effluent through one or more selected tank units is significantly restricted.

Claims

1. An effluent treatment apparatus for treating a volume of effluent contained within a holding vessel, the treatment including the forced contacting of the effluent with surface areas of a volume of a molecular filtering material, the effluent treatment apparatus comprising:

(a) a plurality of treatment tank units, each having an input port to enable the effluent to enter the tank unit and contact the molecular filtering material that is contained and enclosed therein, and an output port to enable the effluent to exit the tank unit after contacting the molecular filtering material, each tank unit further configured with a movable portion having an open position enabling the molecular filtering material to be placed within or removed from the respective tank unit, and a closed position for conducting treatment of the effluent;

(b) a pump unit employable to draw effluent from the holding vessel and effect the delivery of the effluent to at least one of the tank units, and further employable to forcibly drain at least one tank unit to enable servicing of each forcibly drained tank unit;

(c) a pre-filter positioned in-line with and before the pump unit so as to filter and remove from the effluent any larger debris material contained therein as the effluent is drawn from the holding vessel and delivered to the treatment tank units via the pump unit;

(d) a control module;

(e) a manifold and valve assembly structured with a plurality of electronic valves for controlling 3-way fluidic couplings, the manifold and valve assembly responsive to the control module and configurable to enable the delivery of effluent to at least one selected tank unit for a pre-determined temporal interval, even while a second tank unit is open, and is further configurable to enable at least one tank unit to be forcibly drained via the pump unit to remove effluent present therein to facilitate servicing, even while a second tank unit is open;

(f) conduit means to fluidically couple the holding vessel, the pre-filter, the pump unit, the manifold and valve assembly, and the tank units;

(g) the conduit means and manifold and valve assembly capable of forming closed-loops wherein effluent is drawn from the holding vessel, pre-filtered, delivered to at least one tank unit for treatment via the pump unit, and returned to the holding vessel, repeatedly, for the pre-determined temporal interval, and is further capable of forming closed-loops wherein effluent is forcibly drained from at least one tank unit via the pump unit and returned to the holding vessel; and

(h) a pressure regulation and bypass arrangement coupled via the conduit means in a shunting configuration so as to shunt the manifold and valve assembly, and the tanks units, to enable effluent treatment to be effected at or below a pre-selected pressure level, even if the flow of effluent though the tank units is significantly restricted;

(i) the treatment apparatus thereby supporting a treatment process including the forced flowing of effluent through at least one tank unit for a sufficient temporal interval, at or below the pre-selected pressure level, to enable the contaminates present in the effluent to be reduced, at least in part, to acceptable levels to possibly enable the treated effluent and associated volumes of molecular filtering material to be discarded in a manner consistent with that of non-toxic waste.

2. The effluent treatment apparatus according to claim 1, wherein the conduit means and the manifold and valve assembly are structured to enable any one of the following actions to be selected and carried out:

(a) forcibly draining one tank unit while a second tank unit is being serviced to replace a volume of molecular filtering material in the second tank unit;

(b) forcibly draining a plurality of tank units to enable the servicing of the tank units to replace a volume of molecular filtering material present in each respective tank unit; and

(c) servicing a tank unit with the movable portion in the open position while a second tank unit is treating effluent by the forced flowing of the effluent through the second tank unit.

3. The effluent treatment apparatus according to claim 1, wherein each tank unit further includes a vacuum breaker to provide an input supply of air to a tank unit while a volume of effluent present within the tank unit is being forcibly drained and returned to the holding vessel.

4. The effluent treatment apparatus according to claim 3 wherein the control module enables a plurality of the tank units to be selected sequentially for treatment activities.

5. The effluent treatment apparatus according to claim 4 wherein the input port and output port of each tank unit are diametrically positioned to as to maximize the contacting of the effluent with the surface areas of the molecular filtering material with each pass of the volume of the effluent though the selected tank units.

6. The effluent treatment apparatus according to claim 5, wherein the manifold and valve assembly is a compact modular unit, minimizing the overall length of conduit, and volume occupied thereby, and having directly coupled thereto a plurality of electronically actuated valves that are responsive to the control module.

7. The effluent treatment apparatus according to claim 6 further including a detection means to enable the control module to determine if a respective selected tank unit is securely in the closed position before the pump unit is energized.

8. An effluent treatment apparatus for treating a volume of effluent contained within a holding vessel to neutralize contaminants contained therein, the treatment including the forced contacting of the effluent with surface areas of a volume of a molecular filtering material, the effluent treatment apparatus comprising:

(a) a plurality of treatment tank units, each structured having an input port to enable effluent to enter the tank unit and contact the molecular filtering material contained and enclosed therein, and an output port to enable effluent to exit the tank unit after contacting the molecular filtering material;

wherein each tank unit is further configured with a movable portion having an open position enabling molecular filtering material to be placed within or removed from a respective tank unit, and a closed position for conducting treatment of the effluent;

(b) a pump unit responsive to a control module and employable to draw effluent from the holding vessel and effect the delivery of the effluent to at least one of the tank units, the pump also employable to forcibly drain at least one selected tank unit even while the movable portion of another tank unit is in the open position;

(c) the control module;

(d) a manifold and valve assembly responsive to the control module and configurable to enable the either one of the delivery of effluent to at least one selected tank unit for a pre-determined temporal interval, and further configurable to enable at least one tank unit to be forcibly drained to remove effluent present therein to facilitate servicing of each drained tank unit;

(e) conduit means to fluidically couple the holding vessel, the pump unit, the manifold and valve assembly, and the tank units;

the conduit means and manifold and valve assembly capable of selectively forming at least one closed-loop wherein either one of, effluent is delivered to at least one selected tank unit for a pre-determined temporal interval to effect treatment of the effluent, and effluent is forcibly drained from at least one tank unit to remove effluent contained therein to facilitate servicing of each drained tank unit; and

(f) a pressure regulation and bypass arrangement coupled via the conduit means in a shunting configuration so as to shunt the manifold and valve assembly, along with included tank units, to enable effluent treatment to be effected at or below a pre-selected pressure level, even if the flow of effluent though the tank units is significantly restricted.

9. The effluent treatment apparatus according to claim 8 wherein a pre-filter is positioned in-line with and before the pump unit so as to filter and remove any larger debris material contained in the effluent drawn from the holding vessel and delivered to the treatment tank units via the pump unit.

10. The effluent treatment apparatus according to claim 9 wherein the control module includes:

(a) a controller;

(b) a user interface, operatively coupled to the controller, to enable the exchange of information between a user and the controller; and

(c) an interface module, responsive to the controller, to enable the pump unit to be started and stopped under control of the controller.

11. The effluent treatment apparatus according to claim 10, wherein the user interface and the control module enable a user to configure and control the manifold and valve assembly, and the pump unit, to cause any one of the following actions to be selected and carried out:

(a) forcibly draining one tank unit while a second tank unit is being serviced to replace a volume of molecular filtering material in the second tank unit;

(b) forcibly draining each tank unit to enable the servicing of the tank units;

(c) servicing a tank unit with the movable portion in the open position while a second tank unit is treating effluent by the forced flowing of the effluent through the tank unit; and

(d) servicing a tank unit with the movable portion in the open position while a second tank unit is being forcibly drained.

12. The effluent treatment apparatus according to claim 11 wherein the control module is arranged to enable a user to automate the treatment of effluent by initializing and configuring the apparatus, including specifying a total run time providing a temporal period for which treatment activities are to occur, and to further indicate which tank units are to be involved with treatment activities.

13. The effluent treatment apparatus according to claim 8, wherein each tank unit includes at least one vacuum breaker to enable the removal of the effluent from a tank unit when the movable section of the tank unit is in the closed position, where the effluent is drained and returned to the holding vessel.

14. The effluent treatment apparatus according to claim 13 further including a detection means that is operatively coupled to the control module to determine if the tank unit is securely in the closed position before the pump unit may be activated by the control module.