Continuous High-Salinity Wastewater Purification via Segmented Adsorption
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Solution Overview
Problem
Current methods for treating high-salinity wastewater, such as biological, chemical, and physical methods, face challenges including microbial inhibition, high costs, and intermittent operation due to the need for desorption and backwashing, leading to increased investment and operation costs, and inefficient adsorption by existing adsorbents.
Innovation Solution
A movably-connected and continuously-connected apparatus utilizing a high-salinity wastewater adsorption treatment system with hydrogel-filled sector-shaped subzones and a drainage system that allows for periodic and sequential operation, enabling continuous treatment and convenient filler cleaning, reducing operation costs and extending system life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adsorption or filtration is used to separate pollutants from wastewater, then the treatment effectiveness is improved, but intermittent operation is required due to desorption or backwashing needs, increasing investment and operation costs
Solution Approach 1:
The treatment system is divided into multiple independent adsorption units (first adsorption unit, second adsorption unit, etc.) that can operate independently. While one unit undergoes backwashing or desorption, other units continue treating wastewater, enabling continuous operation without interrupting the overall treatment process.
Solution Approach 2:
The system implements periodic switching between different adsorption units for treatment and regeneration. Each unit alternates between adsorption phase and backwashing/desorption phase in a cyclic manner, ensuring that treatment capacity is maintained continuously through the periodic activation of different units.
2Reliability
If a large mass of adsorbent is used to increase adsorption capacity, then the treatment effectiveness is improved, but the total weight of the equipment increases, thereby increasing operation cost such as power consumption
Solution Approach 1:
The adsorbent is distributed across multiple separate adsorption units rather than concentrated in one large unit. This segmentation allows the system to achieve the same total adsorption capacity with reduced individual unit weights, and enables lighter overall equipment design while maintaining treatment effectiveness through parallel operation of multiple units.
Solution Approach 2:
The system enables recovery and regeneration of adsorbent materials through the backwashing and desorption processes. Instead of continuously adding fresh adsorbent to increase capacity, the system recycles and regenerates adsorbent in alternating units, reducing the total amount of adsorbent material needed while maintaining continuous treatment capacity.
3Device complexity
If existing adsorbent is used for pollutant removal, then the treatment process is simplified, but the adsorbing effect is undesirable
Solution Approach 1:
The system employs composite adsorbent materials that combine multiple functional components to enhance adsorption efficiency. These composite materials integrate properties such as high surface area, selective affinity for target pollutants, and mechanical strength, achieving superior adsorption performance while maintaining process simplicity through their multifunctional nature.
Solution Approach 2:
The system optimizes adsorption parameters such as particle size, surface area, porosity, and chemical composition of the adsorbent materials. By adjusting these parameters, the system achieves enhanced adsorption efficiency without complicating the overall treatment process, allowing for fine-tuned performance based on specific wastewater characteristics.
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 apparatus achieves uninterrupted, efficient treatment of high-salinity wastewater by using hydrogel in sector-shaped subzones with a drainage system that allows for continuous operation, reducing complexity and costs, and extending the service life of the system while maintaining high controllability and adaptability.
Implementation Method 1
a hydrogel material having a purification effect is filled in each of the four treatment subzones
Data Source
AI summary
A movably-connected and continuously-connected apparatus for uninterrupted high-salinity wastewater purification includes a high-salinity wastewater adsorption treatment system and a movably-connected drainage system embedded in the treatment system. The high-salinity wastewater adsorption treatment system includes four purification zone partition plates, a hollow cylindrical purification zone, a cylindrical water distribution sump located in an axial center of the purification zone, a rotating shaft, a motor, a fixed support and a water tank; the four purification zone partition plates include a first partition plate forming an angle of 135° with a horizontal direction from left to right, a second partition plate forming an angle of 45° with the horizontal direction from left to right, a third partition plate forming an angle of 135° with a vertical direction from bottom to top and a fourth partition plate forming an angle of 135° with the vertical direction from bottom to top.