biogas residue recycling device

TW202641791AActive Publication Date: 2026-10-16CHIHLEE UNIV TECH
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Patent Information

Application Number
TW114112573
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-10-16
Estimated Expiration
2045-03-31

AI Technical Summary

Technical Problem

Biogas residue, rich in organic nutrients but contaminated with heavy metals and foul odor, is often incinerated due to high processing costs, failing to realize its fertilizer potential and contributing to carbon emissions.

Method used

A biogas residue recycling device that uses nano-ionized water to dissolve heavy metals and eliminate odor by soaking crushed residue, followed by composting to produce safe fertilizer.

Benefits of technology

The device effectively converts biogas residue into odorless compost suitable for fertilizer, recovering nutrients while reducing carbon emissions and heavy metal contamination.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Abstract

A biogas residue recycling device includes a crushing device; a filter tank connected to the crushing device, the filter tank having a first liquid outlet and a first solid outlet; a soaking tank connected to the first solid outlet, the soaking tank having a second liquid outlet and a second solid outlet; a nano-ion water machine connected to the soaking tank; and a biogas collection device connected to the soaking tank. This invention soaks biogas residue in nano-ion water to remove heavy metals and odors, allowing the biogas residue to be recycled into fertilizer as much as possible, achieving a complete resource cycle.
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Description

Technical Field

[0001] This invention relates to a biogas residue recycling and treatment device, and more particularly to a biogas residue recycling device that soaks biogas residue in nano-ion water and then performs subsequent treatment. Prior Technology

[0002] In the context of energy transition, a large portion of organic waste such as kitchen waste and compost is fermented to produce biogas, which is then burned to generate electricity. The remaining liquid portion is called biogas slurry, and the remaining solid portion is called biogas residue. Biogas residue still contains a large amount of organic nutrients and has potential value as fertilizer; however, in reality, biogas residue often emits a strong, foul odor due to fermentation, and various plants absorb trace amounts of heavy metals (such as copper, iron, zinc, etc.) from the soil. Poultry and livestock feed also often contains various metal elements. Therefore, the centralized processing of kitchen waste and compost also concentrates the heavy metal content, meaning that biogas residue cannot necessarily be directly made into fertilizer, requiring additional expensive processing costs. As a result, much biogas residue ultimately ends up in incinerators, contributing to carbon emissions and failing to fully realize its carbon reduction potential.

[0003] In view of this, the inventor has devoted himself to research, design and manufacture, with the aim of providing a recycling device that allows biogas residue to be recycled into fertilizer as completely as possible to reduce waste. This is the inventive motivation for the present invention. Summary of the Invention

[0004] The main objective of this invention is to provide a biogas residue recycling device that uses nano-ionized water to soak pre-crushed biogas residue, dissolving the heavy metal components in the residue, further extracting biogas and eliminating odor, so that the biogas residue can be subsequently processed into compost that meets usage standards.

[0005] The biogas residue recycling device of the present invention includes a crushing device; a water filter tank connected to the crushing device, the water filter tank having a first liquid outlet and a first solid outlet; a soaking tank connected to the first solid outlet, the soaking tank having a second liquid outlet and a second solid outlet; a nano-ion water machine connected to the soaking tank; and a biogas collection device connected to the soaking tank.

[0006] The crushing device first crushes the biogas residue to a predetermined fertilizer particle size, such as below 16 mesh, and filters the liquid out of the first liquid outlet in the water filter tank for further processing. The crushed biogas residue enters the soaking tank through the first solid outlet, and then the nano ion water machine generates nano ion water to soak the biogas residue.

[0007] Nano-ion water is produced using medical-grade pure water as raw material through a special electrolysis technology. Normal natural water, due to van der Waals forces, exists in clusters of 15-20 water molecules. After special electrolysis, this is reduced to 4-6 water molecules, approximately 1 nanometer in size. Simultaneously, during the process, the hydrogen bonds of H₂O are broken, leaving negatively charged OH⁻ ions to form a high concentration of "hydroxyl ions." Nano-ion water is also known as "quantum water." The hydroxyl ions interact with heavy metals in biogas residue, dissolving them and removing them from the residue. Furthermore, the hydroxyl ions decompose unpleasant odor molecules, eliminating the pungent smell of biogas residue. Additionally, the hydroxyl ions decompose some components of biogas residue, releasing methane, or biogas, which can be collected and burned to generate electricity.

[0008] The biogas residue soaked in nano-ionized water can be sent to a composting machine through the second solid outlet to convert the biogas residue into compost. After processing by the composting machine, it can be made into basic fertilizer for use.

[0009] The nano-ionized water that has been soaked in biogas residue flows out through a second liquid outlet and is further treated according to the heavy metal content.

[0010] The liquid produced during the crushing of biogas residue can flow through the first liquid outlet to a liquid fertilizer production module, where the juice produced during crushing is recycled and made into liquid fertilizer.

[0011] To further understand the features, characteristics, and technical content of this invention, please refer to the following detailed description of this invention. Simple Explanation of the Diagram

[0012] The first figure is a schematic diagram of the present invention.

[0013] The second figure is a schematic diagram of the process of this invention. Implementation

[0014] Please refer to Figures 1 and 2, which illustrate embodiments of the present invention. The biogas residue recycling device of the present invention is illustrated by the above figures, which includes a crushing device 1; a water filter tank 2 connected to the crushing device 1, the water filter tank 2 having a first liquid outlet 21 and a first solid outlet 22; a soaking tank 3 connected to the first solid outlet 22, the soaking tank 3 having a second liquid outlet 31 and a second solid outlet 32; a nano-ion water machine 4 connected to the soaking tank 3; and a biogas collection device 5 connected to the top of the soaking tank 3.

[0015] The process of the present invention may include: crushing biogas residue A to below 16 mesh (S1); soaking the crushed biogas residue A in nano-ion water rich in hydroxide ions (S2); and processing the soaked biogas residue A into fertilizer using a composting machine 6 (S3).

[0016] The crushing device 1 crushes the biogas residue A to a predetermined fertilizer particle size, which in this embodiment is below 16 mesh to meet the standard for fertilizer. The liquid is filtered out in the filter tank 2 through the first liquid outlet 21 for further processing. The liquid generated during the crushing process of biogas residue A can flow through the first liquid outlet 21 to a liquid fertilizer production module 7 to recycle the juice generated during crushing and produce liquid fertilizer.

[0017] The crushed biogas residue A enters the soaking tank 3 through the first solid outlet 22, and then nano-ion water is generated by the nano-ion water machine 4 to soak the biogas residue A.

[0018] The nano-ion water machine 4 of this invention can produce nano-ion water. This nano-ion water uses medical-grade pure water as raw material and is produced through a special electrolysis technology. Normal natural water, due to van der Waals forces, forms clusters of 15-20 water molecules. After special electrolysis, these clusters are reduced to 4-6 water molecules, approximately 1 nanometer in size. Simultaneously, during the process, the hydrogen bonds of H2O are broken, leaving negatively charged OH- ions to form a high concentration of "hydroxyl ions." Nano-ion water is also known as "quantum water." The hydroxide ions interact with heavy metals in the sludge A, dissolving the heavy metals and facilitating their subsequent recycling. Furthermore, the hydroxide ions decompose unpleasant odor molecules, eliminating the unpleasant smell of the sludge A. Additionally, the hydroxide ions decompose some components of the sludge A, releasing methane, or biogas, which can be collected by the biogas collection device 5 and then burned to generate electricity.

[0019] The biogas residue A, after being soaked in nano-ionized water, can be sent to a composting machine 6 through the second solid outlet 32 ​​to convert biogas residue A into compost. After processing by the composting machine 6, it can be made into base fertilizer for use. Because soaking in nano-ionized water removes the odor of biogas residue A, the finished product produced by the composting machine 6 will not emit any odor and can be used with confidence.

[0020] The nano-ion water that has been soaked in biogas residue A flows out through the second liquid outlet 31 and is further treated according to the heavy metal content.

[0021] However, the above description is only a preferred embodiment of the present invention and should not be used to limit the scope of the present invention. Any changes and modifications that can be obviously made by those skilled in the art should be considered as not departing from the essence of the present invention.

[0022] 1: Crushing device

[0023] 2: Water filter tank

[0024] 21: First liquid outlet

[0025] 22: First solid outlet

[0026] 3: Immersion tank

[0027] 31: Second liquid outlet

[0028] 32: Second solid outlet

[0029] 4: Nano Ion Water Machine

[0030] 5: Biogas collection device

[0031] 6: Composting machine

[0032] 7: Liquid Fertilizer Production Module

[0033] A: Biogas residue

[0034] S1: Steps

[0035] S2: Steps

[0036] S3: Steps

Claims

1. A biogas residue recycling device, comprising: a crushing device for crushing at least one object; a water filter tank connected to the crushing device, the water filter tank having a first liquid outlet and a first solid outlet, the water filter tank filtering out the liquid portion of the object; a soaking tank connected to the first solid outlet, the soaking tank having a second liquid outlet and a second solid outlet; a nano-ion water generator connected to the soaking tank, the nano-ion water generator generating hydroxide-rich nano-ion water to soak the object to dissolve heavy metals contained in the object and generate biogas; and a biogas collection device connected to the soaking tank.

2. The biogas residue recovery device as described in claim 1, wherein the second solids outlet is connected to a composting machine.

3. The biogas residue recovery device as described in claim 1, wherein the first liquid outlet is connected to a liquid fertilizer production module.

4. The biogas residue recovery device as described in claim 1, wherein the crushing device crushes the object to a size of 16 mesh or less.

5. The biogas residue recovery device as described in claim 4, wherein the object is biogas residue.