chitosan as composite adsorbent and flocculant

Chitosan/inorganic composite adsorbent and flocculant for removing heavy metal ions from wastewater

With the acceleration of industrialization, the problem of heavy metal pollution in wastewater is becoming increasingly serious. Heavy metals have high toxicity and bioaccumulation, posing a serious threat to human health and the ecological environment. Therefore, developing efficient, economical, and environmentally friendly heavy metal removal technologies has become a current research focus. Adsorption method has become an important means of removing heavy metal ions from wastewater due to its advantages of simple operation, low cost, and environmental friendliness. Chitosan, as a natural biopolymer material, has good biocompatibility, non toxicity, and adsorption properties, but it is easily hydrolyzed under acidic conditions and has weak adsorption performance. By combining with inorganic materials, the adsorption performance and mechanical strength of chitosan can be effectively improved to meet the wastewater treatment needs under different conditions.

Formula-1: Chitosan/Magnetic Nanoparticles (CS/MNPs) Composite Adsorbent: Magnetic nanoparticles (MNPs) have a large specific surface area and magnetic properties, making them easy to recover through external magnetic fields. Research has shown that CS/MNPs composite materials have efficient adsorption capacity for heavy metal ions such as Pb, Cr, and Zn, and can achieve material recycling through magnetic recovery.

Formula-2: Chitosan/Graphene Oxide (CS/GO) Composite Adsorbent: Graphene oxide (GO) has a layered structure and abundant oxygen-containing functional groups, with strong affinity for heavy metal ions. The research shows that CS/GO composites have high adsorption capacity for Cu, Pb, Ni and other heavy metal ions, and the adsorption stability of the materials can be improved through aerogel and other forms.

Formula-3:Chitosan/clay mineral (CS/CM) composite adsorbent: Clay mineral (CM) has high cation exchange capacity and porous structure, but is easily dispersed and difficult to recover in aqueous systems. By compounding with chitosan, the stability and adsorption performance of CM in water can be improved. The research shows that CS/CM composites have good adsorption capacity for heavy metal ions such as Cu, Cd, Pb, etc., and the specific surface area and adsorption performance of the materials can be further improved through gel, membrane and other forms.

Formula-4:Chitosan/Biochar (CS/BC) Composite Adsorbent: Biochar (BC) is prepared from biomass under high-temperature pyrolysis conditions and has a rich pore structure and stable carbon skeleton. Research has shown that CS/BC composite materials have efficient adsorption capacity for heavy metal ions such as Cd and Pb, and their adsorption performance can be further improved through modification.

In summary, chitosan/inorganic composite adsorbents have shown broad application prospects in removing heavy metal ions from wastewater. Future research should further explore the application of these composite materials in practical environments and consider their feasibility and economic viability for industrial production, in order to achieve efficient and environmentally friendly heavy metal pollution control.

Yuda Century As a supplier of chitosan application solutions with 21years experience.

Our main products: chitin, chitosan, Hydroxypropyl Chitosan, Hydrochloride Chitosan, Chitosan Lactate, Carboxymethyl Chitosan.

With origin: Chitosan Fresh North Atlantic Shrimp Shell/Crab Shell Origin

Chitosan Aspergillus Niger Origin

Chitosan Agaricus bisporus Origin mushroom

More details and solutions ,please contact us.