Ammonia Waste Fluid Neutralization With In-Tank pH Feedback
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Solution Overview
Problem
The challenge is to efficiently neutralize ammonia-containing waste fluids, such as lubricating oil contaminated with ammonia, which are generated in ammonia fuel-powered engines due to limited installation space in ships and land power plants, preventing corrosion and ensuring safe disposal.
Innovation Solution
A neutralization processing system comprising a sludge tank, neutralizer supply line, and sensors to measure pH and ammonia concentration, allowing for targeted addition of neutralizers like citric acid to neutralize the waste fluid efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ammonia-containing waste fluid is recovered in a recovery tank, then the waste fluid can be stored, but the installation space is limited in inboard and land power plant facilities
Solution Approach 1:
The patent combines the waste fluid storage function and neutralization treatment function into a single integrated tank system. The neutralizer is added directly to the waste fluid in the tank, merging what would traditionally be separate storage and treatment operations into one compact unit, thereby reducing the overall space requirement while maintaining both recovery and treatment capabilities.
Solution Approach 2:
The tank system is designed to perform multiple functions: storing the ammonia-containing waste fluid, mixing the neutralizer with the waste fluid, and facilitating the neutralization reaction. This multi-functional design eliminates the need for separate dedicated storage tanks and treatment vessels, significantly reducing the total installation space required in power plant facilities.
2Quantity of substance
If neutralizer is added to neutralize the waste fluid, then the ammonia concentration is reduced, but the neutralization efficiency needs to be improved in limited space
Solution Approach 1:
The patent employs pH sensors to continuously monitor the neutralization process and provides feedback control for neutralizer dosing. The sensor detects the pH level of the waste fluid, and based on this feedback, the system automatically adjusts the amount of neutralizer added, ensuring efficient and complete neutralization while avoiding excessive chemical addition. This closed-loop control system maximizes neutralization efficiency within the confined tank space.
Solution Approach 2:
The system is designed to automatically monitor and control the neutralization process without requiring external intervention. The pH sensors continuously measure the waste fluid conditions, and the control system automatically regulates neutralizer dosing, enabling the system to self-adjust and optimize the neutralization efficiency within the limited space of the integrated tank.
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 neutralizes ammonia-containing waste fluids by measuring pH and ammonia concentration, ensuring safe disposal and reducing corrosion risks.
Implementation Method 1
a sensor configured to measure pH of the waste fluid or an ammonia concentration of the waste fluid
Implementation Method 2
neutralizing the waste fluid by adding a neutralizer to the waste fluid
Data Source
AI summary
A neutralization processing system for an ammonia-containing waste fluid, includes: one or more sludge tanks; a sludge discharge line configured to supply the waste fluid to the sludge tank; a neutralizer supply line configured to supply a neutralizer to the sludge tank; and a sensor configured to measure pH of the waste fluid or an ammonia concentration of the waste fluid.