# US 2025/0083201 A1 · System of landfill gas extraction using root pipe

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- Number: US 2025/0083201 A1
- Document ID: US20250083201A1
- Status: Published application
- Kind: A1
- Application number: 18/882,779
- Filed: 2024-09-12
- Published: 2025-03-13
- Earliest claimed: 2023-09-13
- Inventors: Kennesha GARG
- Web page: https://patentgrep.com/patent/US20250083201A1

## CPC

- B09B 1/006: {Shafts or wells in waste dumps}
- B09B 1/00: Dumping solid waste
- G01F 23/0007: {for discrete indicating and measuring (G01F23/02 - G01F23/28 take precedence)}
- G01F 23/296: Acoustic waves
- G01F 23/2961: {for discrete levels (G01F23/2962 - G01F23/2968 take precedence)}
- B09B: DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME

## Abstract

The present invention relates to a landfill gas extraction system (100) inspired by mangrove root systems, significantly improving methane extraction rates in landfills. The system (100) comprises plurality of root pipes (101) as extensions to efficiently collect methane gas from remote areas, reducing methane clustering and mitigating explosion and landfill fire risks. The system (100) further comprises the plurality of stems (102, the vertical pipes extending from the landfill bottom to top, and plurality of junctions (103) with plurality of detachable caps (104), serving as connection points for additional extensions of the root pipe (101). Additionally, plurality of ultrasonic sensors (105) facilitates alerting the operator when the waste reaches the junction (103) for the root pipe (101) integration. The system (100) facilitates landfill gas extraction, making waste management safer and eco-friendly.

## Claims

### Claim 1

A system for landfill gas extraction, the system (100) comprising:
a. a plurality of root pipes (101) configured to extract methane gas from one or more landfill regions, wherein the root pipes (101) extend to reach remote areas within the landfill;
b. a plurality of stems (102) vertically extending from the base to the top of the landfill, providing a network of channels for gas collection;
c. a plurality of junctions (103) integrated with the stem (102), wherein the junction (103) facilitates connection between the root pipe (101) and the stem (102), where the junction (103) further comprises a detachable cap (104) facilitating attachment of said root pipes (101); and
d. a plurality of ultrasonic sensors (105) integrated within the system to monitor waste levels in real time.

### Claim 2 (depends on 1)

The system (100) as claimed in claim 1, wherein the root pipe (101) enables efficient gas extraction from inaccessible methane-rich pockets in the landfill.

### Claim 3 (depends on 1)

The system (100) as claimed in claim 1, wherein the ultrasonic sensor (105) facilitates providing alert to the operator through a software integrated with the system (100), upon the waste level reaching close to the junction (103), enabling the controlled installation of the root pipe (101) for gas extraction.

### Claim 4 (depends on 1)

The system (100) as claimed in claim 1, wherein the junction (103) is horizontally aligned with the stem (102) and is configured to allow extension of the gas extraction by attaching at least one additional root pipe (101).

### Claim 5 (depends on 1)

The system (100) as claimed in claim 1, wherein the detachable cap (104) of the junction (103) is configured to be removed and reinstalled without disrupting the ongoing landfill operations, allowing for continuous waste disposal during the installation process.

### Claim 6 (depends on 1)

The system (100) as claimed in claim 1, wherein the ultrasonic sensor (105) is configured to provide real-time data, allowing installation of at least one root pipe (101) directly above the landfill for methane gas extraction.

### Claim 7 (depends on 1)

The system (100) as claimed in claim 1, wherein the root pipe (101) significantly reduces methane gas emissions into the atmosphere, enabling enhancement of environmental sustainability.

### Claim 8 (depends on 1)

The system (100) as claimed in claim 1, wherein the method for optimizing methane gas extraction in a landfill comprises the steps of:
a. installation of the system (100) in regions of the landfill with high methane concentration;
b. utilizing an ultrasonic sensor (105) to monitor the waste levels;
c. attaching at least one root pipe (101) to the junctions (103) after the removal of the detachable caps (104), allowing for precise methane gas extraction.

### Claim 9 (depends on 1)

The system (100) as claimed in claim 1, wherein the increase in efficiency of the system (100) in methane gas extraction from the landfills in small-scale is 79%.

### Claim 10 (depends on 1)

The system (100) as claimed in claim 1, wherein the increase in efficiency of the system (100) in methane gas extraction from the landfills in large-scale is 37%.