# US 2014/0197099 A1 · Wastewater Treatment Bed, Facility and Method

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- Number: US 2014/0197099 A1
- Document ID: US20140197099A1
- Status: Published application
- Kind: A1
- Application number: 14/151,856
- Filed: 2014-01-10
- Published: 2014-07-17
- Earliest claimed: 2013-01-11
- Applicants: Ohio State Innovation Foundation
- Inventors: Karen Mancl; Ryan Kopp; Rashmi S. Gaur; Olli H. Tuovinen
- Web page: https://patentgrep.com/patent/US20140197099A1

## CPC

- C02F 3/04: using trickle filters
- C02F 3/103: {Textile-type packing}
- C02F 3/104: {Granular carriers}
- C02F 1/006: {Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks (for settling tanks B01D21/24)}
- C02F 2103/22: from the processing of animals, e.g. poultry, fish, or parts thereof
- C02F 2103/32: from the food or foodstuff industry, e.g. brewery waste waters
- C02F 2103/327: {from processes relating to the production of dairy products}
- Y02W 10/10: Biological treatment of water, waste water, or sewage
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A facility and a method for treating high strength wastewater include a plurality of beds having layers of granular and textile material through which the wastewater flows for reduction of BOD and COD. The wastewater is conducted to and from the beds using piping networks. Distribution conduits and drain conduits are arranged within the bed. Wastewater flow is controlled by valves remotely actuated via a control system.

## Claims

### Claim at position 1

1-35. (canceled)

### Claim 36

A bed for treating wastewater, said bed comprising:
a drain header;
a plurality of drain conduits in fluid communication with said drain header;
a supply header positioned above said drain header;
a plurality of branch conduits in fluid communication with said supply header and positioned above said drain header;
a plurality of riser conduits, each one of said riser conduits extending from a respective one of said branch conduits;
a plurality of manifolds positioned above said branch lines, each one of said manifolds being in fluid communication with a respective one of said riser conduits;
a plurality of distribution conduits positioned above said branch lines, at least two of said distribution conduits being in fluid communication with each of said manifolds, said distribution conduits for discharging said wastewater therefrom;
a layer of first granular material positioned between said drain conduits and said distribution conduits; and
a layer of treatment material positioned between said layer of first granular material and said distribution conduits.

### Claim 37 (depends on 36)

The bed according to claim 36, further comprising a plurality of valves, each said valve being positioned between one of said riser conduits and one of said manifolds for controlling flow of said wastewater between said riser conduits and said manifolds.

### Claim 38 (depends on 37)

The bed according to claim 37, wherein said valves are remotely controllable valves.

### Claim 39 (depends on 38)

The bed according to claim 38, wherein said valves are solenoid valves.

### Claim 40 (depends on 37)

The bed according to claim 37, further comprising a plurality of indexing valves, each said indexing valve being positioned between one of said valves and one of said manifolds for directing flow of said wastewater into said manifolds.

### Claim 41 (depends on 36)

The bed according to claim 36, wherein said first granular material comprises fine sand.

### Claim 42 (depends on 36)

The bed according to claim 36, wherein said treatment material comprises pea gravel.

### Claim 43 (depends on 36)

The bed according to claim 36, wherein said treatment material comprises a plurality to textile leaves.

### Claim 44 (depends on 43)

The bed according to claim 43, wherein said textile leaves are arranged randomly atop one another.

### Claim 45 (depends on 43)

The bed according to claim 43, wherein said textile leaves have a rectangular shape.

### Claim 46 (depends on 43)

The bed according to claim 43, wherein said textile leaves comprise a woven material.

### Claim 47 (depends on 43)

The bed according to claim 43, wherein said textile leaves comprise a non-woven material.

### Claim 48 (depends on 43)

The bed according to claim 43, wherein said textile leaves comprise felt.

### Claim 49 (depends on 48)

The bed according to claim 48, wherein said felt is selected from the group consisting of polyester, polypropylene, nylon and combinations thereof.

### Claim 50 (depends on 36)

The bed according to claim 36, further comprising a waterproof liner positioned beneath said drain conduits.

### Claim 51 (depends on 50)

The bed according to claim 50, further comprising a layer of sand positioned beneath said waterproof liner.

### Claim 52 (depends on 36)

The bed according to claim 36, further comprising a layer of second granular material positioned between said layer of first granular material and said drain conduits.

### Claim 53 (depends on 52)

The bed according to claim 52, wherein said layer of second granular material comprises wash rock.

### Claim 54 (depends on 52)

The bed according to claim 52, further comprising a layer of third granular material positioned between said layer of second granular material and said layer of first granular material.

### Claim 55 (depends on 54)

The bed according to claim 54, wherein said layer of third granular material comprises pea gravel.

### Claim 56 (depends on 54)

The bed according to claim 54, further comprising a layer of fourth granular material positioned between said treatment layer and said layer of first granular material.

### Claim 57 (depends on 56)

The bed according to claim 56, wherein said layer of fourth granular material comprises coarse sand.

### Claim 58 (depends on 56)

The bed according to claim 56, further comprising a fifth granular material positioned between said manifolds and said layer of treatment material.

### Claim 59 (depends on 58)

The bed according to claim 58, wherein said fifth granular material comprises pea gravel.

### Claim 60 (depends on 36)

The bed according to claim 36, wherein said distribution conduits have a plurality of holes therein for discharge of said wastewater.

### Claim 61 (depends on 60)

The bed according to claim 60, wherein said holes are spaced apart from one another at intervals of about 1 foot.

### Claim 62 (depends on 36)

The bed according to claim 36, wherein said drain conduits have a plurality of slots therein, said slots for admitting wastewater to said drain conduits for removal from said bed.

### Claim 63 (depends on 36)

The bed according to claim 36, further comprising a storage tank for holding said wastewater.

### Claim 64 (depends on 63)

The bed according to claim 63, further comprising a pump in fluid communication with said storage tank and said supply header for pumping said wastewater from said tank to said supply header.

### Claim 65 (depends on 36)

The bed according to claim 36, further comprising a pump in fluid communication with said drain header, said pump for pumping said wastewater from said drain header and out of said bed.

### Claim 66 (depends on 36)

The bed according to claim 36, wherein said bed is located within an excavation site.

### Claim 67 (depends on 36)

A facility for wastewater treatment comprising a plurality of beds according to claim 36, said facility further comprising:
a storage tank for holding said wastewater;
a first piping network providing fluid communication between said storage tank and said supply header of each of said beds;
a second piping network providing fluid communication between said drain header of each of said beds.

### Claim 68 (depends on 67)

The facility according to claim 67, further comprising a first pump positioned between said storage tank and said first piping network for pumping said wastewater from said storage tank into said supply headers of each of said beds.

### Claim 69 (depends on 67)

The facility according to claim 67, further comprising a second pump in fluid communication with said second piping network for pumping said wastewater from said drain headers of each of said beds.

### Claim 70 (depends on 67)

A method of operating the facility according to claim 67, the method comprising:
flowing a predetermined amount of said wastewater to only a first one of said beds;
stop flowing said wastewater to said first one of said beds;
flowing a predetermined amount of said wastewater to only a second one of said beds;
stop flowing a predetermined amount of said waste water to said second one of said beds.

### Claim 71 (depends on 67)

A method of operating the facility according to claim 67, the method comprising:
flowing a predetermined amount of said wastewater to each one of said beds in turn, one after another, for all of said plurality of beds.
