Humic Acid Adsorption Material for Organic Dye Removal
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Solution Overview
Problem
Traditional hydrogel adsorption materials have low adsorption capacity, poor selectivity, and high production costs, making them ineffective for removing organic dyes from wastewater, and they are not recyclable or environmentally friendly.
Innovation Solution
A humic acid type adsorption material is prepared using a simple method with easily available raw materials, including humate, montmorillonite, and carboxymethyl cellulose, through a polymerization process involving acrylic acid, a crosslinking agent, and an initiator, followed by freezing-thawing and freeze-drying to create a porous structure with high adsorption capacity and selectivity for organic dyes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional hydrogel adsorption materials are used, then the adsorption process is simple and cost is low, but the adsorption capacity is low and removal rate is poor
Solution Approach 1:
The patent creates a composite hydrogel adsorption material by integrating multiple functional components: humic acid provides carboxyl groups for metal ion coordination, montmorillonite offers layered structure and cation exchange capacity, and crosslinked polymer networks provide structural framework. This composite structure synergistically enhances adsorption capacity while maintaining operational simplicity
Solution Approach 2:
The hydrogel is designed with a porous three-dimensional network structure formed through crosslinking of polymer chains. This porous architecture increases the specific surface area and provides numerous accessible active sites for dye molecule adsorption, directly addressing the low adsorption capacity issue while keeping the material easy to manufacture
2Ease of operation
If traditional hydrogel adsorption materials are used, then the treatment operation is simple, but the selectivity is poor
Solution Approach 1:
The patent introduces specific functional groups at localized sites within the hydrogel structure: carboxyl groups from humic acid for coordinating with metal ions in dye molecules, and cation exchange sites on montmorillonite layers. These localized functional regions provide selective affinity for specific dye types while maintaining overall operational simplicity
Solution Approach 2:
The patent modifies the chemical parameters of the hydrogel by adjusting the ratio of functional components (humic acid, montmorillonite, crosslinking agents) and controlling crosslinking density. These parameter changes create different microenvironments within the hydrogel that can selectively interact with different dye molecules based on their chemical properties
3Device complexity
If traditional hydrogel adsorption materials are used, then the synthesis method is complicated and cost is high, but the adsorption material cannot be reused
Solution Approach 1:
The patent incorporates recyclability features into the hydrogel structure during the synthesis stage by creating a robust crosslinked network that maintains structural integrity through multiple adsorption-desorption cycles. The crosslinking agents form stable bonds that prevent material degradation, enabling reuse without requiring complex post-synthesis modifications
Solution Approach 2:
The patent uses inexpensive, readily available raw materials including natural humic acid, commercially available montmorillonite clay, and common crosslinking agents. These low-cost components reduce synthesis complexity and make the adsorption material economically viable for repeated use, effectively replacing expensive traditional hydrogels
4Quantity of substance
If traditional hydrogel adsorption materials are used, then the adsorption capacity is low, but the synthetic raw materials are highly toxic
Solution Approach 1:
The patent converts potentially harmful synthetic chemicals into beneficial functional components by using natural humic acid as the primary polymer source. Humic acid provides abundant carboxyl groups for adsorption while being environmentally benign. The natural origin of humic acid and montmorillonite eliminates toxicity concerns while maintaining or enhancing adsorption capacity through their inherent functional groups
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 resulting humic acid type adsorption material has a high adsorption capacity, is recyclable, and can be degraded, effectively removing organic dyes like methylene blue, with a good application prospect for wastewater treatment without secondary pollution.
Implementation Method 1
hydrogel adsorption materials provide numerous active adsorption sites for the removal of pollutants due to the numerous functional groups in their structures
Implementation Method 2
adding a crosslinking agent into the acrylic acid solution to form a system B; dropping the system B and an initiator into the system A
Implementation Method 3
performing freezing-thawing treatment on the viscous gel material obtained in step 3 for several times
Implementation Method 4
montmorillonite, and carboxymethyl cellulose or salts thereof
Data Source
AI summary
The invention discloses a humic acid type adsorption material as well as a preparation method and application thereof. The humic acid type adsorption material is prepared by taking carboxymethyl cellulose or salts thereof, humate and montmorillonite as raw materials and adding a monomer, a cross-linking agent and an initiator through aqueous solution polymerization. The synthesized porous material is great in specific surface area, can quickly get close to water molecules in water to form hydrogen bonds, and finally achieves the purpose of removing organic dye pollutants through electrostatic attraction effect with dye molecules. The humic acid type adsorption material is low in raw material price, is simple in synthesis process, and is green and environmentally friendly.