Kaolin-Based Water Purifying Material for Algae Removal
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Solution Overview
Problem
Current methods for controlling cyanobacterial blooms in water bodies, such as chemical algae removal, are toxic and have short-term effects, necessitating an environmentally friendly and efficient algae removal solution.
Innovation Solution
A kaolin-based water purifying material is prepared through a hydrothermal reaction with organic or inorganic modifiers like OTAC, PAC, Al2(SO4)3, Fe2(SO4)3, AlCl3, and FeCl3, which enhances the material's specific surface area and electropositivity, allowing for effective algae removal through electrostatic adsorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If chemical algicides are used for algae removal, then algae removal efficiency is improved, but toxic side effects increase
Solution Approach 1:
The patent modifies the chemical parameters of kaolin through hydrothermal treatment and surface modification with organic or inorganic modifiers, transforming it from a neutral material into one with enhanced electropositivity and specific surface area, enabling effective algae removal without toxic effects
Solution Approach 2:
The patent creates a composite material by combining kaolin with modifiers (such as OTAC, PAC, Al2(SO4)3, Fe2(SO4)3, AlCl3, or FeCl3) through hydrothermal reaction, producing a material that integrates the adsorption capabilities of kaolin with the electropositive properties of modifiers, achieving both high efficiency and eco-friendliness
2Duration of action of moving object
If chemical algicides are used for algae removal, then short-term algae control is improved, but long-term environmental safety deteriorates
Solution Approach 1:
The patent employs a disposable purifying material that can be added to water bodies for algae removal and then removed with settled algal flocs, eliminating the need for persistent chemical residues in the environment while maintaining effective algae control
Solution Approach 2:
The patent converts the naturally occurring kaolin material into a beneficial purifying agent through hydrothermal modification, transforming an inert material into one with enhanced algae removal capabilities while maintaining environmental safety
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 kaolin-based material effectively removes algae by forming flocs that settle due to gravity, providing a safe and eco-friendly solution for water purification.
Implementation Method 1
allowing for effective algae removal through electrostatic adsorption
Implementation Method 2
forming flocs that settle due to gravity
Data Source
AI summary
The present disclosure relates to the technical field of water purifying material, and in particular to a kaolin-based water purifying material, a preparation method and use thereof. The method for preparing a kaolin-based water purifying material provided by the present disclosure includes the following steps: mixing kaolin and a modifier with water, and conducting hydrothermal reaction to obtain a kaolin-based water purifying material; the modifier is an organic or inorganic modifier; the organic modifier is octadecyl trimethyl ammonium chloride (OTAC), and the inorganic modifier is one or more of polyaluminum chloride, Al2(SO4)3, Fe2(SO4)3, AlCl3 and FeCl3; the kaolin is 200-400 mesh in particle size. The water purifying material of the present disclosure enables efficient algae removal and water purification, and is safe and eco-friendly.