Automated Perchlorate Removal via Biomass Reactor Control
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Solution Overview
Problem
Current perchlorate removal systems are inefficient and require excessive chemicals and intensive operator sampling, lacking automation and effective means to reduce perchlorate concentrations in water to safe levels, posing health risks and operational challenges.
Innovation Solution
A system comprising a fluidized bed reactor with biomass capable of degrading perchlorate, an electron donor source, nutrient supply, and programmable logic control to optimize perchlorate reduction, along with analyzers for nitrogen and oxygen measurement, enabling automated control of the treatment process to achieve acceptable perchlorate levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If conventional perchlorate removal systems are used, then perchlorate can be removed from water, but excessive chemicals and intensive operator sampling are required
Solution Approach 1:
The system uses automated analyzers to continuously monitor perchlorate concentrations and automatically adjusts electron donor addition rates without requiring operator intervention. The programmable logic controller autonomously manages the treatment process based on real-time measurements, eliminating the need for intensive manual sampling and chemical dosing adjustments.
Solution Approach 2:
The system incorporates continuous feedback through automated analyzers that measure perchlorate concentrations in real-time. This feedback is used by the programmable logic controller to dynamically adjust electron donor addition rates, creating a closed-loop control system that optimizes chemical usage and eliminates manual sampling requirements.
2Extent of automation
If conventional perchlorate removal systems are used, then perchlorate can be removed from water, but the systems lack automation and real-time control
Solution Approach 1:
The system replaces manual mechanical sampling and chemical dosing operations with automated electronic analyzers and a programmable logic controller. This substitution enables real-time monitoring and control of electron donor addition, significantly improving automation levels while enhancing treatment efficiency through precise, data-driven process management.
Solution Approach 2:
The system implements continuous automated monitoring and control operations, eliminating interruptions caused by manual sampling and chemical dosing adjustments. The programmable logic controller continuously adjusts electron donor addition based on real-time perchlorate measurements, maintaining optimal treatment conditions throughout the process and improving overall productivity.
3Productivity
If high concentrations of electron donor are added to degrade perchlorate, then perchlorate removal efficiency increases, but chemical costs and treatment time increase
Solution Approach 1:
The system dynamically changes the electron donor addition rate parameter based on real-time perchlorate concentrations measured by automated analyzers. The programmable logic controller adjusts dosing rates to match actual treatment needs, preventing both under-dosing and excessive chemical consumption. This parameter optimization maximizes removal efficiency while minimizing electron donor usage and associated costs.
Solution Approach 2:
The system optimizes treatment time parameters by continuously monitoring perchlorate degradation progress and adjusting hydraulic retention times accordingly. This allows the system to achieve effective perchlorate removal without excessive treatment durations, balancing productivity with resource consumption.
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 perchlorate concentrations in water to safe levels, minimizing chemical usage and operator intervention, while ensuring efficient and economical treatment, producing potable water by optimizing electron donor addition and treatment time based on real-time analysis.
Implementation Method 1
contacting the water with biomass capable of degrading perchlorate in a reactor for a period of time sufficient to reduce the concentration of perchlorate in the water
Implementation Method 2
adding electron donor or nutrients to the water in the reactor in an amount effective to facilitate the degradation of perchlorate in the water by the biomass
Data Source
AI summary
The invention provides systems and methods for removing perchlorate from water. The systems comprise reactors comprising biomass for degrading perchlorate, and the operation of the systems can be controlled according to novel logic specifications. Also provided are filters and filtration systems for clearing water in advance of analysis of the concentration of contaminants within the water. The filters comprise a length of tubing configured to generate backpressure at the filter sufficient to facilitate the flow of a water sample through the filter without overpressurization.