System and method for preparing foliar fertilizer by refining and extracting crude pyroligneous liquor

Through the four-step coupling process of filtration-settlement-electrolysis-adsorption, the problems of low removal efficiency of suspended substances, volatilization of heat-sensitive substances and oxidant residues in the refining of crude wood vinegar are solved, and efficient and low-consumable foliar fertilizer preparation is achieved, which improves the crop nutrient absorption efficiency and growth rate.

CN120464431APending Publication Date: 2025-08-12SOUTHEAST UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510592297.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

The existing crude wood vinegar liquid purification process is difficult to achieve accurate separation and purification of effective ingredients, and there is a risk of insufficient removal efficiency of suspended substances, volatility and loss of heat-sensitive substances, and oxidant residues, resulting in low crop emergence rate, high risk of soil acidification, and high energy consumption.

Method used

A four-step coupling process of filtration system, static settlement system, electrochemical sedimentation system and adsorption system is adopted, including staging filtration, static settlement, electrochemical sedimentation and targeted adsorption. Through the integration of step-by-step purification technology, efficient removal of suspended matter, particulate matter and harmful components is achieved.

Benefits of technology

It improves purification efficiency and product purity, reduces energy consumption, expands application fields, reduces equipment maintenance costs, and improves agricultural resource utilization and economic benefits.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120464431A_ABST
    Figure CN120464431A_ABST
Patent Text Reader

Abstract

The invention discloses a system and a method for preparing a leaf fertilizer by refining and extracting crude wood vinegar, and belongs to the technical field of wood vinegar refining. According to the invention, technologies such as adsorption of harmful substances by self-made pyrolytic carbon and electro-catalysis precipitation accelerating are adopted, and the device comprises a filtering system, a standing and settling system, an electrochemical aging accelerating system, an activated carbon adsorption system, a collecting system and a vacuum pump system. The filtering system is used for removing suspended matters and particulate matters in the crude wood vinegar; the standing settling system is used for separating light components from heavy components by utilizing gravity; an electrochemical aging accelerating system is used for precisely controlling oxidation-reduction reaction to remove impurities in a targeted manner; a stepped adsorption layer of the adsorption system can directionally adsorb harmful components and remove peculiar smell; and the device further comprises a collection system and a vacuum pump system. According to the method, a green technical system is innovatively constructed, compared with a traditional distillation process, through process collaborative innovation and multi-stage purification technology integration, the wood vinegar refining efficiency is remarkably improved, and the method is environmentally friendly, low in energy consumption, low in carbon emission and remarkable in economic benefit.
Need to check novelty before this filing date? Find Prior Art