Liquid treatment process and system

The integrated liquid treatment system addresses high water consumption and waste discharge in evaporative cooling by using a vertical wetland and vapor-permeable membrane for efficient heat rejection and sustainable water management.

WO2026143286A1 Publication Date: 2026-07-09THERMASPIRE TECHNOLOGIES INC
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Patent Information

Application Number
PCT/CA2025/051763
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-31
Filing Date
2025-12-30
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Existing evaporative cooling systems face high water consumption and waste discharge issues, leading to environmental concerns and inefficiencies, necessitating improved processes and systems for treating liquids requiring heat rejection with reduced water consumption and waste discharge.

Method used

A liquid treatment system integrating an evaporative-cooling component with a vertical wetland and a vapor-permeable waterproof membrane, utilizing counter-flow heat transfer and plant-assisted mineral uptake to efficiently reject heat while minimizing water use and waste.

Benefits of technology

The system achieves efficient heat rejection, reduces water consumption, eliminates liquid waste discharge, and promotes sustainable water management through plant growth and mineral uptake, enhancing energy efficiency and compliance with environmental regulations.

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Abstract

A system and process for treating liquid are disclosed. The liquid treatment process comprises flowing a stream of heated liquid through an evaporative-cooling component and simultaneously, flowing an air stream through the evaporative-cooling component. The air stream is arranged to flow in a direction counter-flow to that of the stream of the heated liquid, thereby transferring heat from the heated liquid to the air stream to form a stream of chilled liquid and a flow of vapor. The flow of vapor is transported through a vapor-permeable waterproof membrane, away from the evaporative-cooling component towards a vertical wetland comprising vertical-wetland media. The flow of vapor is transported through the vertical-wetland media in the direction of an environment. Plant life and / or sorbents are supported by the vertical-wetland media.
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