Orbital Wastewater Flow Control via Sensor Feedback
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Solution Overview
Problem
Existing orbital wastewater treatment systems face challenges in efficiently managing nitrogen and phosphorus removal, particularly in maintaining optimal conditions for denitrification and phosphorous release, which affects the operational efficiency and effluent quality.
Innovation Solution
The system incorporates a tank assembly with anoxic and aerobic zones connected by passages, a flow-diversion mechanism controlled by an actuator and sensor feedback, allowing for dynamic adjustment of liquor flow based on real-time parameters such as nitrate, phosphorus, and oxygen levels, optimizing the denitrification and phosphorous release processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a manually adjustable flow-diversion gate is used to control nitrate recycling, then operational flexibility is improved, but ease of operation deteriorates due to manual adjustment requirements
Solution Approach 1:
The patent replaces the manual mechanical flow-diversion gate with an automated valve controlled by a control system. The valve receives control signals from sensors monitoring nitrate levels, dissolved oxygen, and other parameters, automatically adjusting the flow diversion to maintain optimal conditions without manual intervention. This substitution of mechanical manual control with an automated control system resolves the contradiction by maintaining adaptability while dramatically improving ease of operation.
Solution Approach 2:
The patent implements a feedback control system where sensors continuously monitor nitrate concentrations, dissolved oxygen levels, and other critical parameters. The control system processes this feedback information and automatically adjusts the valve position to maintain optimal conditions for denitrification and phosphorus release. This closed-loop feedback mechanism provides both adaptability to changing conditions and ease of operation through automation.
2Device complexity
If fixed flow conditions are maintained in treatment zones, then system simplicity is improved, but adaptability deteriorates due to inability to respond to changing operational conditions
Solution Approach 1:
The patent transforms the static fixed flow conditions into dynamic adjustable conditions. The valve is capable of automatically adjusting flow diversion based on real-time sensor feedback regarding nitrate levels, dissolved oxygen, and other parameters. This dynamic capability allows the system to adapt to changing operational conditions while maintaining relatively simple system architecture, resolving the contradiction between simplicity and adaptability.
Solution Approach 2:
The patent enables parameter changes in flow conditions based on monitored operational parameters. The control system adjusts the valve position to change flow rates and distribution patterns in response to varying nitrate concentrations, dissolved oxygen levels, and other measured parameters. This parameter-based control provides adaptability without requiring complex system redesign.
3Manufacturing precision
If multiple sensors and automated control are added to optimize nitrogen and phosphorus removal, then effluent quality is improved, but device complexity increases
Solution Approach 1:
The patent employs a multi-functional control system that uses sensors to monitor multiple parameters (nitrate, dissolved oxygen, pH, etc.) and controls a single valve to achieve multiple objectives (nitrogen removal via denitrification, phosphorus release control, dissolved oxygen management). This multi-functionality approach improves effluent quality through precise control while minimizing the increase in device complexity by using a centralized control architecture rather than multiple separate control mechanisms.
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 enhances the removal of nitrogen and phosphorus, improving the operational efficiency and effluent quality by dynamically adjusting the flow between treatment zones based on sensor inputs, ensuring optimal conditions for bacterial reactions and chemical processes.
Implementation Method 1
At least one impeller is located in said tank for moving mixed liquor under process about said tank and for increasing the dissolved oxygen content of the liquor in the aerobic zone
Implementation Method 2
In the anoxic basin or zone, screened and degritted influent and recycled activated sludge are mixed with nitrified mixed liquor, providing optimized conditions for high rate denitrification
Implementation Method 3
The control unit is operatively connected to the actuator for regulating a flow state or configuration of the flow-diversion mechanism to adjust the flow of liquor between the two treatment zones
Data Source
AI summary
An orbital wastewater treatment system includes a tank assembly, at least one impeller, a flow-diversion mechanism, an actuator, optionally at least one sensor disposed in the tank assembly, and a control unit. The tank assembly has an anoxic zone and an aerobic zone and passages between the two zones. The impeller is disposed in the tank assembly for aeration and for moving mixed liquor under process about the tank assembly. The flow-diversion mechanism is disposed at least one of the passages between the aerobic and the anoxic zone. The actuator is operatively connected to the gate for regulating the flow state or configuration thereof in response to a signal generated by the control unit at least partially pursuant to a predetermined schedule and/or at least partially in accordance with input from the sensor.