Regulating Tank Circulation for Wastewater Cooling and Aeration
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Solution Overview
Problem
Wastewater treatment in paper recycling generates high temperatures that hinder the effectiveness of aerobic bacteria, and conventional methods to mitigate this issue, such as adding chemical solutions, have limited effectiveness.
Innovation Solution
A regulating tank system that includes a tank member with an annular wall, overflow weirs, and pump devices to circulate wastewater, creating a circulation that lowers water temperature and increases dissolved oxygen levels, thereby enhancing the biochemical process for aerobic bacteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical solutions are added to help bacteria work in high temperature wastewater, then bacterial activity is maintained, but the treatment effectiveness is limited and chemical additives are required
Solution Approach 1:
The patent changes the temperature parameter of the wastewater by introducing cooling water into the regulating tank. This lowers the wastewater temperature to a range suitable for aerobic bacteria activity, eliminating the need for chemical solutions and achieving reliable bacterial treatment through physical temperature control
2Productivity
If wastewater temperature is high, then treatment process continues, but aerobic bacteria cannot work effectively
Solution Approach 1:
The patent introduces cooling water into the regulating tank to change the temperature parameter of the wastewater. The cooling water mixes with the high-temperature wastewater, lowering its temperature to a range where aerobic bacteria can effectively degrade organic matter, thus maintaining treatment continuity with effective bacterial activity
Solution Approach 2:
The patent uses cooling water as an intermediary substance to transfer heat away from the wastewater. The cooling water absorbs excess heat from the wastewater through heat exchange, acting as a mediator to reduce wastewater temperature without directly interfering with the biochemical treatment process
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 system effectively reduces water temperature and increases dissolved oxygen levels, improving the operational conditions for aerobic bacteria in wastewater treatment, thereby enhancing the treatment efficiency.
Implementation Method 1
a first pump device having a first pump and a first return pipe, wherein the first pump is connected to the tank member, and the first return pipe has an end connected to the first pump and an opposite end associated with the first overflow weir. The first pump of the first pump device pumps the wastewater in the tank member to the first overflow weir through the first return pipe
Implementation Method 2
the wastewater flows back to the tank member from the first overflow weir to disturb the wastewater in the tank member
Implementation Method 3
lower water temperature and increase dissolved oxygen to help the works of aerobic bacteria in biochemical process
Implementation Method 4
lower water temperature and increase dissolved oxygen to help the works of aerobic bacteria in biochemical process
Data Source
AI summary
A regulating tank of a wastewater treatment system includes a tank member having an annular wall to receive wastewater, a first overflow weir connected to an interior side of the annular wall of the tank member, and a first pump device having a first pump and a first return pipe. The first pump of the first pump device pumps wastewater in the tank member to the first overflow weir through the first return pipe, and then the wastewater flows back to the tank member from the first overflow weir to disturb the wastewater in the tank member.