Slurry Feed System with Periodic Flushing for Wastewater
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Solution Overview
Problem
Wastewater treatment systems face challenges in controlling odor and clogging due to the use of treating slurries, which often require frequent manual flushing, leading to operational inefficiencies and increased costs.
Innovation Solution
A method and system that introduce a treating slurry and a flushing fluid into wastewater streams with controlled timing and flow rates, using a controller to adjust the flowrate and regulate valve positions, and include a flushing mode to clear conduits, reducing clogging and odor issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If treating slurry is continuously pumped through conduits to wastewater stream, then odor control is maintained, but conduit clogging occurs requiring frequent manual flushing
Solution Approach 1:
The system automatically alternates between treating mode (pumping slurry to control odor) and flushing mode (clearing conduits) based on predetermined time intervals. The controller monitors operation duration and triggers flushing after a set treating period, preventing clogging while maintaining odor control effectiveness through periodic treatment cycles.
Solution Approach 2:
The system performs self-flushing automatically without manual intervention. When clogging is detected or time interval expires, the controller automatically reverses pump operation and activates flushing fluid injection to clear the conduits, then returns to treating mode, enabling the system to maintain itself without operator involvement.
2Reliability
If manual flushing is performed frequently to prevent clogging, then conduit reliability is maintained, but operational efficiency decreases and costs increase
Solution Approach 1:
The system automatically performs flushing operations without requiring manual intervention. The controller monitors treating operation duration and automatically initiates flushing sequences when predetermined time intervals are reached, eliminating the need for operators to manually flush conduits and maintaining continuous operational efficiency.
Solution Approach 2:
The controller uses feedback from time interval monitoring to automatically trigger flushing operations. By tracking the duration of treating mode operation and comparing it against predetermined thresholds, the system determines when flushing is needed and executes the appropriate flushing sequence, optimizing conduit maintenance timing without manual input.
3Object-affected harmful factors
If slurry flowrate is increased to improve odor control, then treatment effectiveness increases, but risk of conduit clogging increases
Solution Approach 1:
The system uses periodic alternating between high-flow treating mode and flushing mode to manage the trade-off. During treating periods, slurry is pumped at optimal flowrates for odor control. After predetermined time intervals, the system switches to flushing mode to clear any accumulating deposits, enabling sustained high-flow operation without clogging.
Solution Approach 2:
The system performs preliminary flushing actions before clogging can significantly impact operation. By monitoring treatment duration and automatically initiating flushing sequences at predetermined intervals, the system prevents clogging from developing to problematic levels, maintaining conduit reliability while allowing effective treatment flowrates.
Data Source
AI summary
The invention can provide or facilitate systems and methods for feeding a slurry and, in particular, to systems and methods for treating wastewater streams with a slurry having periodic flushing of conduits.