Research progress in the preparation and cadmium adsorption performance of biochar and its composites
With the development of technology,industries such as electroplating and chemical engineering are gradually emerging,pro-ducing various combined forms of cadmium that cause pollution to soil,water,and atmosphere.It accumulates in animals and plants,en-ters the human body through the food chain,and has adverse effects.To solve the problem of cadmium pollution,biochar and its com-posite materials are utilized to adsorb cadmium from the environment,taking advantage of their wide range of sources,strong adsorption ability,and low cost.This article mainly discusses the preparation methods of biochar and its composite materials,clarifies the adsorption and removal mechanism of cadmium by various materials,as well as the application of cadmium adsorption in water and soil,in order to provide theoretical reference for practice.
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