# US 10,246,867 B2 · River course ecological treatment system

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- Number: US 10,246,867 B2
- Document ID: US10246867B2
- Status: Granted
- Kind: B2
- Application number: 15/584,575
- Filed: 2017-05-02
- Published: 2018-11-08
- Granted: 2019-04-02
- Earliest claimed: 2017-05-02
- Applicants: Thomas Wang
- Inventors: Thomas Wang
- Web page: https://patentgrep.com/patent/US10246867B2

## CPC

- E03F 1/003: {via underground elongated vaulted elements}
- B01D 24/00: Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (B01D27/02 takes precedence)
- C02F 3/06: using submerged filters
- C02F 3/2826: {using anaerobic filters}
- C02F 3/302: {Nitrification and denitrification treatment (C02F3/308 takes precedence)}
- C02F 3/308: {Biological phosphorus removal}
- C02F 3/327: {characterised by animals and plants}
- E02B 3/02: Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow ({harvesting water plants A01D44/00; underwater loosening of soil or rocks for foundation construction E02D17/16}; dredging or scraping devices E02F5/28)
- E02B 3/04: Structures or apparatus for, or methods of, protecting banks, coasts, or harbours ({E02B1/003 takes precedence;} sealing or joints E02B3/16 )
- E02B 3/12: Revetment of banks, dams, watercourses, or the like, {e.g. the sea-floor}(of slopes in general E02D17/20)
- E02B 3/125: {mainly consisting of vegetable material, e.g. wood, reeds}
- E02B 5/08: Details, e.g. gates, screens
- E02B 7/02: Fixed barrages
- E02B 8/02: Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E03F 1/001: {into a body of water}
- B01D 2101/04: Sand or gravel filters
- C02F 2103/001: {Runoff or storm water}
- C02F 2103/007: {Contaminated open waterways, rivers, lakes or ponds}
- C02F 2303/24: Separation of coarse particles, e.g. by using sieves or screens
- E03F 3/046: {Open sewage channels}
- Y02A 10/30: Flood prevention; Flood or storm water management, e.g. using flood barriers
- Y02W 10/10: Biological treatment of water, waste water, or sewage
- E03F: SEWERS; CESSPOOLS
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- 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)
- E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A river course ecological treatment system for use in a river includes a plurality of plastic retaining dams disposed in the river that receive and divide the river course into sequential retaining regions arranged in a direction from upstream to downstream; a plurality of ecological biological water purification systems disposed in the sequential retaining regions and each ecological biological water purification system being located between any two adjacent plastic retaining dams of the plurality of plastic retaining dams to purify water within the sequential retaining regions and discharge purified water; and at least one damp land ecological water purification system that is disposed beside the river and that includes a rainwater channel disposed along the river; aquatic plants disposed in the rainwater channel are effective to purify water flowing within the rainwater channel; and draining vents provided in the rainwater channel that discharge purified water into the river course.

## Claims

### Claim 1

A river course ecological treatment system for use in a river, comprising:
a plurality of plastic retaining dams disposed in the river that receive and divide the river course into sequential retaining regions arranged in a direction from upstream to downstream;
a plurality of ecological biological water purification systems disposed in the river in the sequential retaining regions and each ecological biological water purification system of the plurality of ecological biological water purification systems being located between any two adjacent plastic retaining dams of the plurality of plastic retaining dams to purify water within the sequential retaining regions and discharge purified water; and
at least one damp land ecological water purification system that is disposed beside the river and that comprises:
a rainwater channel disposed along the river;
aquatic plants disposed in the rainwater channel that are effective to purify water flowing within the rainwater channel; and
draining vents provided in the rainwater channel that discharge purified water into the river course.

### Claim 2 (depends on 1)

The river course ecological treatment system of claim 1, further comprising two concrete side layers that flank the river along at least a portion of the river course ecological treatment system and that are respectively connected to a bottom concrete layer that is disposed at a bottom portion of the river course between the two concrete side layers and that has defined therein a sludge-collecting gutter that is arranged in the direction from an upstream portion to a downstream portion of the river.

### Claim 3 (depends on 2)

The river course ecological treatment system of claim 2, wherein the two concrete side layers and the bottom concrete layer each have a thickness of at least 30 cm.

### Claim 4 (depends on 2)

The river course ecological treatment system of claim 2, further comprising two protective ramps that flank the river along at least a portion of the river course ecological treatment system and that are respectively positioned outside of a corresponding concrete side layer of the two concrete side layers
wherein the at least one damp land ecological water purification system is disposed between one concrete side layer of the two concrete side layers and a corresponding protective ramp of the two protective ramps.

### Claim 5 (depends on 1)

The river course ecological treatment system of claim 1, wherein each ecological biological water purification system of the plurality of ecological biological water purification systems has a return pipe that receives a portion of the purified water from the ecological biological water purification system and returns the purified water to a respective retaining region of the retaining regions located upstream.

### Claim 6 (depends on 1)

The river course ecological treatment system of claim 1, wherein each ecological biological water purification system has a transfer pipe connected to the rainwater channel, and water purified by each ecological biological water purification system is transferred to the rainwater channel via the transfer pipe and is supplied to the at least one damp land ecological water purification system for purification so that the water purified by the at least one damp land ecological water purification system is discharged through the draining vents into the retaining regions located downstream.

### Claim 7 (depends on 6)

The river course ecological treatment system of claim 6, wherein each ecological biological water purification system comprises one biological water purification unit or a plurality of biological water purification units that are connected to one another respectively.

### Claim 8 (depends on 7)

The river course ecological treatment system of claim 7, wherein each biological water purification unit comprises a tank provided with an inlet and an outlet, and the tank has disposed therein at least one water purification basin comprising, in the order recited, a sedimentation basin, an anaerobic lagoon, an oxygen-deficient pool, a primary biological sand filter, and a secondary biological sand-filter,
wherein the sedimentation basin is connected to the inlet, and the secondary biological sand filter is connected to the outlet,
wherein a baffle and a communication opening are vertically disposed above one another between the sedimentation basin and the anaerobic lagoon, between the anaerobic lagoon and the oxygen-deficient pool, between the oxygen-deficient pool and the primary biological sand filter, and between the primary biological sand filter and the secondary biological sand filter, and arranged to vertically alternate orientation of a respective baffle and communication opening with respect to an adjacent baffle and communication opening.

### Claim 9 (depends on 8)

The river course ecological treatment system of claim 8, wherein the plurality of plastic retaining dams are arranged at an interval of 1-5 km therebetween.

### Claim 10 (depends on 9)

The river course ecological treatment system of claim 9, wherein the aquatic plants of the damp land ecological water purification systems are disposed in the rainwater channel on floating boards configured for growth of the plants therethrough.

### Claim 11 (depends on 8)

The river course ecological treatment system of claim 8,
wherein the sedimentation basin, the anaerobic lagoon, and the oxygen-deficient pool of each water purification basin are each provided with a removable water purification filler that is a suspended plastic elastic filler,
wherein the primary biological sand filter is provided with sand and a removable water purification filler that is a fibrous filament netting filler, and
wherein the secondary biological sand filter is provided with sand and a removable water purification filler that is a biochemical ceramic ring-like filler.