Sewage Treatment Apparatus with Feedback Control for Effluent Stability
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Solution Overview
Problem
Existing multi-household sewage treatment apparatuses cannot be automatically adjusted based on effluent quality detection, leading to unstable effluent quality.
Innovation Solution
A sewage treatment apparatus with integrated anaerobic, aerobic, settling, sludge reduction, and apparatus zones, equipped with a detection unit and controller to automatically adjust treatment processes based on detected parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automatic detection and control systems are added to sewage treatment apparatus, then effluent quality stability is improved, but device complexity increases
Solution Approach 1:
The patent implements automatic control through detection units that monitor effluent quality parameters (COD, ammonia nitrogen, total phosphorus) and feed this information back to the control system. The controller automatically adjusts operational parameters such as aeration intensity, sludge回流 rates, and chemical dosing based on real-time detection results, forming a closed-loop feedback system that maintains stable effluent quality without manual intervention
Solution Approach 2:
The sewage treatment apparatus performs self-diagnosis and self-adjustment through integrated detection units and controllers that automatically monitor treatment process parameters and adjust operational conditions. The system independently detects effluent quality, compares it with target values, and automatically modifies aeration, mixing, and chemical addition rates to maintain optimal treatment performance without external control
2Productivity
If multiple treatment zones and advanced devices are integrated, then treatment efficiency is improved, but ease of operation deteriorates
Solution Approach 1:
The control system serves multiple functions by simultaneously managing aeration control, sludge回流 regulation, chemical dosing, and process monitoring across all treatment zones. The detection units monitor multiple parameters (COD, ammonia nitrogen, total phosphorus) and the controller coordinates adjustments across anaerobic, aerobic, and settling zones, allowing a single control system to handle diverse treatment requirements and simplify operational interfaces
Solution Approach 2:
The patent combines multiple treatment functions (anaerobic digestion, aerobic treatment, settling, sludge reduction) and their corresponding control mechanisms into an integrated system. The controller unifies management of aeration devices, mixing devices, sludge回流 pumps, and chemical dosing systems, while detection units consolidate monitoring of multiple effluent parameters, reducing the number of separate control interfaces and simplifying operation
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 apparatus achieves stable effluent quality, meets first-grade discharge standards, and supports automatic adjustment and energy conservation.
Implementation Method 1
an external box body, the external box body internally being provided with an anaerobic zone, an aerobic zone, a settling zone, a sludge reduction zone and an apparatus zone separated from each other; the anaerobic zone, the aerobic zone, the settling zone and the sludge reduction zone communicate in sequence
Implementation Method 2
the aerobic zone communicates with the anaerobic zone to reflux a part of mixed liquor to the anaerobic zone
Implementation Method 3
the settling zone communicates with the anaerobic zone to reflux a part of active sludge to the anaerobic zone
Data Source
AI summary
A sewage treatment apparatus comprises an external box body internally being provided with an anaerobic zone, an aerobic zone, a settling zone, a sludge reduction zone and an apparatus zone separated from each other, wherein the anaerobic zone, the aerobic zone, the settling zone and the sludge reduction zone communicate in sequence, the anaerobic zone communicates with a septic tank, the aerobic zone communicates with the anaerobic zone to reflux a part of mixed liquor to the anaerobic zone, the settling zone communicates with the anaerobic zone to reflux a part of active sludge to the anaerobic zone, and the sludge reduction zone communicates with the anaerobic zone or the septic tank; and the apparatus zone is internally provided with a detection unit for detecting various parameters during a sewage treatment process and a controller for controlling working states according to a detection result of the detection unit.