Water Treatment System with Multi-Source Reuse Control

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Solution Overview

Problem

Existing systems fail to facilitate the exchange and circulation of treated wastewater between multiple generating sources such as toilet, cooking, and shower systems, limiting effective reuse and conservation of water.

Innovation Solution

A water treatment system with integrated sewage treating machines, sensors, circulation/usage water tanks, and a control device that manages water exchange and quality across these systems, ensuring consistent water quality and quantity through real-time monitoring and adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If water is reused within a single system (e.g., toilet to toilet), then water conservation is achieved, but water exchange and circulation between multiple generating sources cannot be realized

Engineering Contradiction:
Improvewater conservationVSAvoidwater exchange between multiple systems
Core Design Contradiction:
Loss of substanceVSAdaptability or versatility

Solution Approach 1:

The patent creates a multi-functional water circulation system where treated water from any generating source (toilet, shower, laundry, cooking) can be exchanged and reused in any other system. The control device manages water quality and enables universal compatibility across different water-generating systems, allowing one system's treated water to serve another system's needs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the water circulation system into independent generating sources (toilet system, shower system, laundry system, cooking system), each with its own water treatment capability. This segmentation allows flexible recombination and exchange of treated water between segments while maintaining overall system functionality and water conservation.

Inventive Principle:
Principle #1Segmentation

2Reliability

If water quality is strictly monitored and controlled, then hygienic conditions are maintained, but system complexity increases

Engineering Contradiction:
Improvehygienic conditionsVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Each generating source in the patent is equipped with its own water treatment machine that automatically treats and recycles its generated water. The systems perform self-service water treatment without requiring complex external intervention, maintaining hygienic conditions through decentralized automated treatment while reducing overall system complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control device continuously monitors water quality parameters from various generating sources and automatically adjusts treatment processes and water exchange decisions based on real-time feedback. This closed-loop control ensures hygienic conditions are maintained while automating quality management to prevent complexity from manual monitoring.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If independent water treatment is performed at each generating source, then water circulation between systems is enabled, but device complexity increases

Engineering Contradiction:
Improvewater circulation between systemsVSAvoidnumber of treating machines
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple water treatment machines into an integrated water circulation system managed by a central control device. By merging the treatment functions and coordinating them through centralized control, the system enables water circulation between multiple generating sources while avoiding the complexity of completely independent treatment systems.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If water is reused without external connections, then system independence is achieved, but water quality management becomes more difficult

Engineering Contradiction:
Improvesystem independenceVSAvoidwater quality management
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements self-service water quality management where each generating source's treatment machine automatically treats its own wastewater and the central control device coordinates water exchange based on real-time quality monitoring. This autonomous operation achieves system independence while managing water quality through distributed intelligence rather than complex external management.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4019471B1Water treatment system and water treatment method
Publication Date: 2025.10.22 WOTA CORP
  • EP4019471B1 patent drawingFigure 1
  • EP4019471B1 patent drawingFigure 2~3
  • EP4019471B1 patent drawingFigure 4~5

AI summary

The present invention aims to move water between a plurality of devices, e.g., a toilet system, a cooking system, a laundry system, and a shower system, and create a cycle for reusing treated water generated by each device. The present invention is a water treatment system 1 that comprises: a plurality of wastewater treatment machines 4a, 5a, 6a, 7a provided for each source; a plurality of sensors 4c, 5c, 6c, 7c that at least detect and output the water volume and water quality of treated water; tanks 4b, 5b, 6b, 7b that store treated water as recirculation water; an excess water tank/storage tank that store excess water; and a control device 2 that drive-controls the wastewater treatment machines and manages the water volume and water quality of treatment water in each source tank on the basis of sensor data from the sensors. The control device controls so as to replenish shortages by using recirculation water from another source or excess water from an excess water tank, if a determination has been made that there is a shortage of recirculation water in one source, on the basis of sensor data.