ALIN Technology and Its Features and Effects

The ALIN technology is based on subcritical water treatment, efficiently and environmentally friendly processing waste to generate energy and compost. Here, we provide a detailed overview of its main technological processes and effects.

Subcritical Water Treatment Technology

ALIN’s subcritical water treatment technology decomposes organic waste in a short time at an environment of 200 degrees Celsius and 20 MPa, making it odorless and harmless. This process allows for efficient waste treatment without generating greenhouse gasses, unlike the traditional incineration methods. Moreover, this technology is characterized by its ability to process various types of waste without segregating.

What is Subcritical Water?

Subcritical water refers to water that exists near the critical point, transitioning from a typical liquid state to a vaporized state under specific temperature and pressure conditions. Specifically, it is used under conditions of 200 degrees Celsius and 20 MPa.
Water in this subcritical state possesses stronger decomposition power than regular water, enabling efficient breakdown of organic matter.

Waste Treatment Process

Decomposition of Input Waste

Organic waste (household waste, food waste, medical waste, etc.) is first fed into the subcritical water treatment plant. This waste is decomposed in approximately 1 to 2 hours under subcritical water conditions.

Comprehensive Decomposition
by Subcritical Water

The process allows the disposal of various waste types simultaneously such as kitchen waste, plastics, medical waste, clothing, wood scraps, and paper waste without any waste sorting. Unlike traditional methods, comprehensive treatment is possible without any waste separation.

Features of Subcritical Water Treatment

Non-Incineration
Waste Treatment

Traditional incineration methods burn waste at high temperatures (800 to 1200 degrees Celsius), contributing to global warming. However, subcritical water treatment does not involve combustion, preventing the release of harmful gasses such as dioxins and greenhouse gasses.

Deodorization and
Neutralization

Odors and bacteria generated during waste treatment are significantly reduced through subcritical water. Waste is deodorized and neutralized, achieving an environmentally friendly processing system.

Efficient Treatment
Without Sorting

The subcritical water treatment eliminates the need for separating household waste, food waste, and medical waste, allowing for bulk processing. This greatly reduces both the required effort and costs associated with treatment.

Reutilization of Waste and Building a Circular Society

Reutilization of Residues After Treatment

The materials remaining after subcritical water treatment become suitable for methane fermentation, allowing them to be reused as energy. Additionally, the final organic residues are deodorized and utilized as compost in agriculture. This process ensures that waste is completely recycled, contributing to the construction of a sustainable society.
Comparison with Other Treatment Methods

Comparison with other treatment methods

Comparison with Incineration

Incineration consumes a large amount of energy and generates significant greenhouse gas emissions due to the high-temperature burning process. Furthermore, incineration ash must be disposed of in landfills, whereas subcritical water treatment utilizes residues as energy materials instead of just waste. This contributes to decarbonization (low-carbon) efforts in both the treatment method and the results.