Overflow Chamber Siphon Discharge for Rainwater Separation
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Solution Overview
Problem
Current sewage treatment systems face challenges in separately discharging rainwater and soil, leading to unnecessary treatment costs and environmental contamination, as they often discharge rainwater and soil with low concentration into treatment plants, overwhelming facilities during heavy rains.
Innovation Solution
An overflow chamber with a siphon principle and buoyancy-controlled discharge system, featuring a receiving unit with separate discharge and interceptor ports, where the interceptor port closes during high water levels to prevent low-concentration rainwater and soil from entering treatment plants, and opens during low levels to allow high-concentration discharge to the treatment plant, using a siphon principle to direct flow based on water levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rainwater and soil are discharged into the sewerage treatment plant during heavy rains, then the treatment plant receives all incoming water, but the treatment cost increases and facility capacity is overwhelmed
Solution Approach 1:
The overflow chamber is divided into multiple discharge paths: a first discharge port for rainwater/soil and a second discharge port for sewage. The siphon tube selectively activates the first discharge port when rainwater level rises, segmenting the discharge function to prevent mixed water from overwhelming the treatment plant while maintaining reliable sewage treatment capacity
Solution Approach 2:
The siphon tube utilizes pressure differential (a physical parameter) to control discharge. When rainwater level rises above the siphon tube inlet, the pressure difference activates the siphon effect, automatically switching the discharge path without mechanical components. This parameter-based control prevents excessive rainwater discharge while preserving treatment plant capacity for actual sewage
2Reliability
If all incoming water is treated through the sewerage treatment plant, then complete treatment is achieved, but treatment costs increase unnecessarily for low-concentration rainwater
Solution Approach 1:
The discharge system is segmented into two separate paths: one for rainwater/soil (first discharge port) and one for sewage (second discharge port). This segmentation ensures that only sewage requiring treatment enters the treatment plant, eliminating unnecessary energy consumption and treatment costs for low-concentration rainwater while maintaining reliable sewage treatment effectiveness
Solution Approach 2:
The siphon tube extracts rainwater and soil from the mixed water flow before it enters the treatment plant. By removing the rainwater component (which does not require treatment) and directing it separately, the system eliminates unnecessary treatment costs while preserving complete treatment effectiveness for the remaining sewage
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
Effectively reduces sewage treatment costs by preventing low-concentration rainwater and soil from entering treatment plants during heavy rains, while ensuring high-concentration contaminants are treated, thereby minimizing environmental contamination and optimizing facility operations.
Implementation Method 1
using a siphon principle and buoyancy and that controls separate discharge of rainwater and sewage
Implementation Method 2
by connecting a device operated by buoyancy to the inlet of the interceptor port
Data Source
AI summary
A overflow chamber that can discharge rainwater and soil according to the present disclosure includes: a receiving unit having a receiving space; an interceptor port formed at a side of the receiving unit and selectively opening/closing in accordance with the amount of received object received in the receiving unit; a discharge port formed at another side of the receiving unit; and a first discharge pipe communicating with the discharge port and convexly bending upward at least one time.