Method for preparing charcoal slow-release fertilizer by utilizing dioscorea zingiberensis saponin fiber waste residues

A technology of turmeric saponin and biochar, which is applied in the direction of application, fertilization device, fertilizer mixture, etc., can solve the problems affecting the development of saponin, polluting the environment, wasting resources, etc., to save time and energy, low pyrolysis temperature, and low cost cheap effect
CN102701852AInactive Publication Date: 2012-10-03WUHAN INSTITUTE OF TECHNOLOGY
5 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN INSTITUTE OF TECHNOLOGY
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to a method for preparing a charcoal slow-release fertilizer by utilizing dioscorea zingiberensis saponin fiber waste residues. The method comprises the following steps of: (1) air drying the dioscorea zingiberensis saponin fiber waste residues, smashing and sieving; (2) putting in a reactor, rising temperature to be 300-600 DEG C, and carrying out pyrolytic carbonization under the condition of oxygen limited to obtain charcoal powder after cooling and grinding; and (3) spraying the charcoal powder onto binder solution, packaging a fertilizer for 2-5 times, air drying after mixing uniformly, or pelleting through a comminutor, or compression molding through a mould, so as to obtain the charcoal slow-release fertilizer. According to the method, the process is simple, the cost is low, and the time and the energy are saved; and charcoal and the fertilizer are packaged according to a certain proportion, and a complementary or synergistic effect which exists between the charcoal and the fertilizer is utilized, so that the nutrient efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for preparing biochar type slow-release fertilizer by using turmeric saponin fiber waste residue. Background technique

[0002] The saponin industry will produce a large amount of fiber waste residue. At present, such waste residue is either discarded or piled up in the factory area, which not only pollutes the environment but also wastes resources. At present, practical and feasible technologies are urgently needed to solve this bottleneck problem that affects the development of the saponin industry. The main ways for the application of traditional process turmeric saponin industrial waste residues include the preparation of fuels, artificial materials, organic fertilizers, etc., but there are almost no engineering applications at present, especially for the direct separation method of saponin process fiber waste residues.

[0003] The utilization rate of chemical fertilizers in China is far lower than that of develop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More