Ballasted Flocculation Water Treatment with Real-Time Impurity Feedback
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Solution Overview
Problem
Current water treatment methods using ballasted flocculation-settling technology face challenges in optimizing ballast quantities, minimizing losses, and maintaining water quality without increasing energy consumption, particularly in recycling and separation processes.
Innovation Solution
A method that continuously measures impurity concentrations to adjust ballast and flocculant reagent dosages in real-time, using a combination of sensors and automated systems to optimize flocculation and recirculation processes, and includes a hydrocycloning step with auxiliary liquid injection to enhance sludge-ballast separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ballasted flocculation-settling technology is used to increase settling speed and reduce structure size, then productivity is improved, but ballast losses increase due to leakage with sludge
Solution Approach 1:
The patent implements a feedback control system where sensors continuously monitor water quality parameters (turbidity, particle concentration) and this information feeds back to automatically adjust ballast dosing rates and recirculation flows. This closed-loop control optimizes ballast utilization and minimizes losses while maintaining high settling speeds.
Solution Approach 2:
The system dynamically changes operational parameters including ballast dosage concentration, recirculation flow rates, and mixing intensity based on real-time water quality measurements. This allows optimization of the balance between settling performance and ballast retention.
2Loss of substance
If hydrocycloning is used to separate ballast from sludge for recycling, then ballast recovery is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediate mixing zone between the settling tank and hydrocyclone that serves as a buffer and preparation stage. This intermediary component facilitates smoother operation of the hydrocyclone and improves separation efficiency while organizing the overall process flow.
Solution Approach 2:
The system employs hydraulic principles in the hydrocyclone design using centrifugal force generated by tangential water injection to separate ballast from sludge without mechanical moving parts. This pneumatic-hydraulic approach achieves effective separation while minimizing mechanical complexity.
3Manufacturing precision
If continuous monitoring and real-time adjustment of ballast dosage is implemented, then manufacturing precision is improved, but use of energy increases
Solution Approach 1:
The system employs self-regulating mechanisms where water quality sensors automatically detect changes in turbidity or particle load and trigger proportional adjustments in ballast dosing and recirculation without requiring external intervention. This autonomous operation achieves precise control while minimizing unnecessary energy consumption from continuous manual adjustments.
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 approach allows for precise control of ballast quantities and flocculant usage, minimizing losses and maintaining water quality while reducing energy consumption and ballast leakage, thereby optimizing the treatment process.
Implementation Method 1
subjecting it to a sludge/ballast separation step by hydrocycloning
Implementation Method 2
ballasted floc flocculation-settling technology
Implementation Method 3
coagulating the water to be treated loaded with impurities with a coagulating reagent
Implementation Method 4
introducing the mixture of water and floc thus formed into a settling zone; separating the treated water in the upper part of said settling zone from a mixture of sludge and ballast
Data Source
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AI summary
The invention relates to a method for processing water in a plant that comprises the steps of contact water, a ballast and a flocculation agent in a flocculation area (1) for forming a flocculate, introducing the mixture thus formed into a deposition area (11), separating the processes water, extracting the sludge and ballast mixture in the lower portion of the deposition area (1) and feeding it to an agitation area for intermediate mixture (19), extracting the sludge and ballast mixture present therein (19) an submitting it to a sludge/ballast separation step (26) by hydro-cycloning, recycling the underflow in the flocculation area (1) extracting a portion of the sludge for the underflow and recirculating the other portion into the intermediate area (19), characterised in that it comprises the step of continuously measuring at least one parameter representative of the impurity concentration in the water before or during its entry in the flocculation area, and the step of using the results of the measurement thus made in order to continuously derive the ballast amount to be used in order to obtain processed water having a predetermined quality.