Coconut fiber composite nanometer iron oxide heavy metal stabilizer and preparation method thereof

Abstract

The invention discloses a coconut fiber composite nanometer iron oxide heavy metal stabilizer and a preparation method thereof. The coconut fiber composite nanometer iron oxide heavy metal stabilizeris prepared from raw materials like coconut shell, chitosan, sodium carbonate, iron chloride and fly ash. According to the invention, homogeneous purified plant cellulose is obtained through multi-step processes of acid pickling, caustic washing and water washing of the coconut shell, and nanometer iron oxide is synthesized by utilizing a water phase, so adsorption varieties of pollutants are expanded; the efficiency of adsorption to heavy metals is improved; meanwhile, the coconut fiber composite nanometer iron oxide heavy metal stabilizer has good biological compatibility and can be appliedto treatment of heavy metal pollution and organic matter pollution in the environment. The heavy metal stabilizer provided by the invention is environment-friendly, has high adsorption efficiency, andis applicable to application in various environmental treatment projects.

Description

technical field [0001] The invention relates to the technical field of remediation of heavy metal pollution, in particular to a coconut shell fiber composite nano-iron oxide heavy metal stabilizer and a preparation method thereof. Background technique [0002] With the rapid development of the economy, especially the human activities in mining, metallurgy, chemical industry and other industries, the problem of heavy metal pollution is becoming more and more serious. Heavy metal pollution problems include heavy metal soil pollution, heavy metal air pollution, and heavy metal water pollution. Heavy metals exist in the environment in different forms, accumulate, migrate, enter the human body and combine with biological enzymes to inhibit protein synthesis, induce protein denaturation, and interfere with the nervous system. Excessive enrichment of heavy metals in the food chain will cause serious damage to the natural environment and human health. At the same time, heavy metal ...

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Problems solved by technology

In the process of urban construction and building demolition, a large amount of fly ash waste bricks will be produced. These wastes will accumulate in large quantities, not only occupying land, but also adversely affecting the environment.