Palladium-based catalysts play an irreplaceable role in catalytic reactions in the fields of environmental protection, fine chemicals, pharmaceutical industry, new energy, etc., relying on their own unique properties. However, their practical application still faces challenges such as cost and sustainability.

Coconut shell charcoal performs well in drinking water purification, coal-based charcoal is suitable for industrial wastewater pretreatment, and wood charcoal is suitable for low- to medium-concentration organic pollution.

Activated carbon, as a carbonaceous adsorption material, is widely used in gas and liquid adsorption purification. Therefore, accurate detection of its physical properties, adsorption properties and chemical properties is very important for guiding the production and application of activated carbon.

The characteristics of polyaluminium chloride include its general chemical formula [Al2(OH)nCl6-n]m, which has strong bridging adsorption performance. During the hydrolysis process, it purifies water through physical and chemical reactions such as coagulation, adsorption and precipitation.

Activated carbon is widely used in wastewater treatment, drinking water purification, air purification and other fields. Its strong adsorption capacity enables it to effectively remove color, odor and harmful substances in water.

The activated carbon for gold has uniform particle size, high mechanical strength and strong adsorption capacity. It is made by special processes such as water grinding. It has the characteristics of good wear resistance and high adsorption performance. It is suitable for modern gold mining production.