Water Clarification via High-Energy Air Injection
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Solution Overview
Problem
Existing methods for clarifying water and dewatering sludge are inefficient in removing colloidal structures, resulting in high turbidity and increased costs for transport and incineration, as they rely on coagulants and flocculants that do not effectively neutralize the low sedimentation rate and electronegative charge of colloidal particles.
Innovation Solution
Introducing high energy (>10,000 J) into a colloidal effluent in a confined, oxidizing medium, using a device with a chamber that injects air and creates turbulent conditions to break down colloidal structures, allowing for effective liquid/solid separation without additional reagents, and enhancing the process with complementary techniques like centrifugation or filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If coagulants and flocculants are added to agglomerate colloids, then colloidal particles can be removed by settling or centrifuging, but the liquid effluent remains of high turbidity and with a solid fraction of high water content
Solution Approach 1:
The invention changes the physical-chemical parameters of colloidal particles through high-energy treatment (>10,000 J) in a confined oxidizing medium, transforming their stability characteristics and enabling effective separation without chemical additives
Solution Approach 2:
The invention uses strong oxidation conditions with air injection at high pressure into the confined medium to attack and destabilize colloidal structures, breaking down their protective layers and enabling aggregation for removal
2Manufacturing precision
If high energy (>10,000 J) is introduced into colloid-loaded effluent in a confined oxidizing medium, then colloidal structures are broken down and removed, but substantial energy input is required
Solution Approach 1:
The invention uses pneumatic energy through air injection at high pressure (several bars) into the confined medium to generate the necessary turbulence and oxidation, converting readily available pneumatic energy into the high-energy treatment required for colloid breakdown
Solution Approach 2:
The invention exploits phase transition energy by injecting air (gas phase) into the liquid effluent under pressure, creating bubbles that collapse and generate localized high-energy zones for colloid destruction while the system operates in a confined oxidizing medium
3Quantity of substance
If the method is combined with complementary separation tools like belt filter or centrifugation, then solids increase by more than 10%, but device complexity increases
Solution Approach 1:
The invention segments the treatment process into distinct functional stages: first the high-energy oxidation breakdown of colloids in the confined medium, then optional complementary separation. This modular segmentation allows the core innovation to stand alone while enabling enhanced performance when combined with existing separation tools
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
This method produces transparent water and increases solid content by up to 25%, reducing transportation and incineration costs, with low energy consumption and minimal material usage, while creating a porous dewatered cake that is easily recyclable and environmentally friendly.
Implementation Method 1
simultaneous injection of air into the chamber at a rate d below the feeding of the flow, into said chamber
Implementation Method 2
introducing high energy (>10 000 J) into the colloid-loaded effluent, which is both liquid and sludgy, all in a confined and oxidizing (air) medium
Implementation Method 3
the flow is sprayed into a chamber in overpressure in relation to the atmospheric pressure
Implementation Method 4
introducing high energy (>10 000 J) into the colloid-loaded effluent
Implementation Method 5
simultaneous injection of air into the chamber... in order, surprisingly, to bring about the loss of the negative characteristics of the colloids that prevent their removal
Data Source
AI summary
The invention relates to a method and device for clarifying water by means treatment of the colloidal structures contained in a liquid and/or a sludge supplied in a continuous flow at a flow rate of QEB=VEB/hour. The flow is sprayed into a chamber under overpressure conditions in relation to atmospheric pressure, said chamber having a volume v<VEB/20, and air being injected simultaneously therein at a flow rate d.