Deep Ocean Desalination System Using Hydrostatic Pressure
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Solution Overview
Problem
Current desalination methods consume significant energy and are inefficient, especially in producing potable water from seawater, which is abundant but high in dissolved solids, and there is a growing global demand for fresh water due to rising populations and contamination of existing sources.
Innovation Solution
A deep ocean desalination system using hydrostatic pressure to facilitate reverse osmosis through a membrane structure with a submersible pump and flexible or rigid riser, minimizing energy requirements by leveraging natural ocean pressure and extending membrane life by operating below biologically active ocean regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional desalination methods are used, then potable water can be produced from seawater, but significant energy is consumed
Solution Approach 1:
The system utilizes the natural hydrostatic pressure of deep ocean water (at depths of 300-1000 meters) to drive the reverse osmosis process, eliminating the need for high-pressure pumps and significant energy input. The deep ocean environment provides the necessary pressure differential automatically, allowing the system to serve itself in terms of energy requirements
Solution Approach 2:
The invention changes the operational parameters by moving the desalination process from surface or shallow water environments to deep ocean depths. This parameter change (depth/pressure) fundamentally alters the energy requirements, as the natural hydrostatic pressure at depth replaces the need for mechanical pressurization systems
2Quantity of substance
If membrane structures are used in biologically active ocean regions, then desalination can occur, but membrane life is reduced due to biological contamination
Solution Approach 1:
The system transitions from operating in the biologically active surface layer to operating in the deep ocean dimension (300-1000 meters depth). This dimensional shift moves the membrane structure into an environment with significantly lower biological activity, thereby extending membrane life while maintaining fresh water production capability
3Ease of operation
If shallow water desalination is performed, then easier access is achieved, but higher energy input is required to overcome lower ambient pressure
Solution Approach 1:
The invention fundamentally changes the pressure parameter by operating at deep ocean depths where natural hydrostatic pressure ranges from 30-100 atmospheres. This parameter change eliminates the need for high-energy mechanical pressurization systems, as the ambient pressure itself drives the reverse osmosis process
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 effectively produces fresh water with reduced energy consumption and extended membrane life, addressing the global water scarcity and contamination issues by providing a reliable and efficient method for large-scale potable water production, especially in coastal areas.
Implementation Method 1
A deep ocean desalination system using hydrostatic pressure to facilitate reverse osmosis through a membrane structure
Implementation Method 2
using hydrostatic pressure to reverse osmosis the seawater
Implementation Method 3
a suction pump positioned at a second end of the conduit and configured to suction the seawater into the conduit
Implementation Method 4
a pressure differential required for the reverse osmosis
Data Source
AI summary
A deep ocean desalination system that uses hydrostatic pressure to reverse osmosis the seawater. The membrane structure is deployed to a predetermined ocean depth and includes a submersible pump system.