Ballast Water Treatment via Electro-Chlorination and Sensor Feedback

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Solution Overview

Problem

Current ballast water treatment systems face challenges such as high energy consumption, production of disinfection by-products, and the need for neutralization, which increase costs and treatment time while not fully ensuring the death of organisms.

Innovation Solution

A water treatment system that includes an online multi-sensor module for real-time analysis of water parameters, a hybrid treatment module capable of executing multiple treatment modes, and a control system that adjusts treatment parameters based on real-time data to optimize treatment efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If UV treatment is used to disinfect ballast water, then organisms are rendered non-reproductive, but very high energy consumption is required and treatment capacity is reduced

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the parameter of disinfection method from UV treatment to electro-chlorination, which operates at lower energy levels. The electro-chlorination process uses electrolysis to generate active chlorine in-situ, achieving effective disinfection without the high energy demands of UV treatment while maintaining treatment capacity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical UV disinfection system with an electrochemical system (electro-chlorination). This substitution eliminates the need for high-power UV lamps and their associated energy consumption, while providing continuous disinfection through electrochemical reactions at lower energy input

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If electro-chlorination is used to treat ballast water, then free chlorine is generated to disrupt organisms, but free chlorine has long lifetime and must be neutralized prior to discharge

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoiddisinfection by-products
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent employs periodic action by alternating between electro-chlorination (chlorine generation) and electro-dechlorination (chlorine removal) phases. During discharge, the system switches to dechlorination mode to neutralize residual chlorine and prevent harmful by-products, while maintaining effective disinfection during the charging phase

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent applies preliminary action by performing dechlorination in advance before ballast water discharge. The system proactively removes residual chlorine and prevents formation of harmful disinfection by-products before the water is released, rather than dealing with them after formation

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If electro-chlorination is used in ballast water treatment, then chlorine production is affected by salinity level, but electrolysis is non-functional in brackish or fresh water

Engineering Contradiction:
Improvewater type compatibilityVSAvoidchlorine production efficiency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements dynamics by making the treatment process adaptable to varying water conditions. The system dynamically adjusts its operation based on water salinity levels, switching between electro-chlorination mode for saline water and alternative treatment modes for brackish or fresh water, ensuring continuous effectiveness across different water types

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent achieves universality by designing a multi-functional treatment system that can handle different water types (saline, brackish, fresh). The system incorporates multiple treatment capabilities including electro-chlorination for saline water and alternative electrochemical treatments for lower salinity waters, making it universally applicable to all ballast water conditions

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

4Productivity

If online multi-sensor module is used for real-time analysis, then treatment parameters can be optimized, but device complexity increases

Engineering Contradiction:
Improvetreatment efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the complex monitoring and control functions into separate modular sensor units. Each sensor module independently measures specific parameters (pH, ORP, conductivity, flow rate), and the control system integrates these discrete measurements to optimize treatment, reducing overall system complexity through functional segmentation

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves a more efficient and cost-effective treatment process by minimizing energy consumption, reducing the formation of disinfection by-products, and optimizing treatment strategies based on real-time analysis of water parameters.

Implementation Method 1

an online multi-sensor module being connected to the water transport line in an online manner and being configured to automatically analyze the water being transported through the water transport line, thereby obtaining one or more water parameters indicative of properties of organisms in the water

Methodology Applied
Scientific EffectMulti-sensor analysis:

Implementation Method 2

a hybrid treatment module configured to treat the water by executing multiple treatment modes

Methodology Applied
Scientific EffectHybrid treatment:

Implementation Method 3

a control system configured to regulate the hybrid treatment module according to the one or more water parameters received from the online multi-sensor module by determining respective treatment parameters for the multiple treatment modes

Methodology Applied
Scientific EffectFeedback control: Feedback

Data Source

PatentUS12264083B2Water treatment system and method for treatment of water
Publication Date: 2025.04.01 ABB (SCHWEIZ) AG
  • US12264083B2 patent drawing
  • US12264083B2 patent drawing
  • US12264083B2 patent drawing

AI summary

A system for marine growth prevention including a water transport line, configured to transport water through the system, an online multi-sensor module being connected to the water transport line in an online manner and being configured to automatically analyze the water being transported through the water transport line, thereby obtaining one or more of water parameters indicative of properties of organisms in the water, a hybrid treatment module configured to treat the water by executing multiple treatment modes, and a control system configured to regulate the hybrid treatment module according to the one or more water parameters received from the online multi-sensor module.