Method for extracting potassium humate from vegetable leaves and preparing iron-carbon composite material and application

Abstract

The invention discloses a method for extracting potassium humate and preparing an iron-carbon composite material by utilizing rotten vegetable leaves and application, the method comprises the following steps: smashing rotten vegetable leaves and water, juicing, adding a KOH solution, carrying out hydrothermal reaction, carrying out suction filtration and separation to obtain solid residues and a separation liquid, adjusting the pH value of the separation liquid, standing and separating to obtain a precipitate and a filtrate, and drying to obtain the iron-carbon composite material. Collecting the precipitate, drying to constant weight to obtain potassium humate, and collecting and storing the filtrate; the solid residues, red mud, potassium carbonate and the filtrate are mixed and then subjected to ultrasonic dispersion, stirring, drying and roasting, and an iron-carbon composite material is obtained; according to the method, the potassium humate and iron-carbon composite material is produced from the tail vegetable leaves, full-quantitative utilization of the tail vegetable leaves is achieved, a new way for recycling the red mud is provided, compared with the prior art, the cost is low, the waste recycling target of pollution reduction, carbon reduction and synergistic interaction is achieved, the important social value and environmental value are achieved, and the method is worthy of popularization and application. And a new method is provided for solid waste recycling.

Description

technical field [0001] The invention belongs to the technical field of red mud resource utilization of coriander leaves and bulk industrial solid waste, and in particular relates to a method and application for extracting potassium humate from coriander leaves and preparing iron-carbon composite materials. Background technique [0002] With the improvement of people's living standards, grocery shopping in supermarkets has become the living habit of most urban residents, which puts forward higher requirements for the appearance, quality and processing of vegetables, resulting in many vegetables with poor quality being sold Abandoned, resulting in waste of resources and environmental pollution. The content of nutrients in discarded tail vegetables is relatively high, and random storage and disposal will not only cause serious harm to surface water and groundwater, but also traditional incineration methods will also produce fly ash that diffuses into the atmospheric environment...

AI Technical Summary

Problems solved by technology

Red mud wet storage is easy to pollute surface water and groundwater because of its strong alkalinity, and wet storage will cause secondary pollution to the environment once the dam breaks

The red mud stored in dry method is easy to cause dust pollution, and the red mud storage stored in the open air will also pollute the underground soil and water in the storage area due to the leaching effect of rainwater.

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