Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing organic-inorganic compound fertilizer from kitchen waste

A technology of food waste and compound fertilizer, which is applied in the direction of organic fertilizer, inorganic fertilizer, application, etc., can solve the problems of long time period, comprehensive utilization rate of less than 20%, high industrial production cost, etc., and achieve low production cost and cycle time The effect of time period and convenient operation

Inactive Publication Date: 2021-04-02
宣城市安工大工业技术研究院有限公司
View PDF20 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, about 138,000 mu of farmland has been occupied by steel slag in my country, and the cumulative stockpile of steel slag is nearly 1.1 billion, and the comprehensive utilization rate is less than 20%.
The time period of this method is too long. According to the test method in the patent, it takes about 30 days, and the cost of industrial production is relatively high.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing organic-inorganic compound fertilizer from kitchen waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The invention provides a method for preparing organic-inorganic compound fertilizer by using kitchen waste, which is characterized in that the preparation method comprises the following steps:

[0038] (1) Put the food waste in the oil-water separator to separate the oil, water and solid matter of the food waste;

[0039] (2) The oil separated in step (1) can be directly used as biodiesel raw material;

[0040] (3) The solid matter separated in step (1) is further press-filtered, and the thick slurry from press-filtering and the water separated in step (1) are evaporated in the MVR evaporator;

[0041] (4) Put the organic liquid evaporated by the MVR evaporator in step (3) at a concentration of 400g / L into the fermentation tank, and add a compound biological agent, which includes Bacillus subtilis, Trichoderma, yeast, and actinomycetes , carry out biological fermentation, and can be directly used as liquid organic fertilizer after fermentation. The total nutrients of liq...

Embodiment 2

[0050] The invention provides a method for preparing organic-inorganic compound fertilizer by using kitchen waste, which is characterized in that the preparation method comprises the following steps:

[0051] (1) Put the food waste in the oil-water separator to separate the oil, water and solid matter of the food waste;

[0052] (2) The oil separated in step (1) can be directly used as biodiesel raw material;

[0053] (3) The solid matter separated in step (1) is further press-filtered, and the thick slurry from press-filtering and the water separated in step (1) are evaporated in the MVR evaporator;

[0054] (4) Put the organic liquid evaporated by the MVR evaporator in step (3) at a concentration of 550g / L into the fermentation tank, and add a compound biological agent, which includes Bacillus subtilis, yeast, and actinomycetes, for biological Fermentation. After fermentation, it can be directly used as liquid organic fertilizer. The total nutrients of liquid fertilizer (N+...

Embodiment 3

[0063] The invention provides a method for preparing organic-inorganic compound fertilizer by using kitchen waste, which is characterized in that the preparation method comprises the following steps:

[0064] (1) Put the food waste in the oil-water separator to separate the oil, water and solid matter of the food waste;

[0065] (2) The oil separated in step (1) can be directly used as biodiesel raw material;

[0066] (3) The solid matter separated in step (1) is further press-filtered, and the thick slurry from press-filtering and the water separated in step (1) are evaporated in the MVR evaporator;

[0067] (4) Put the organic liquid evaporated by the MVR evaporator in step (3) at a concentration of 650g / L into the fermentation tank, and add a compound biological agent, which includes Bacillus subtilis, Bacillus licheniformis, acid producing bacteria, wood Mold, lactic acid bacteria, yeast, and actinomycetes are used for biological fermentation. After fermentation, they can...

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

PUM

PropertyMeasurementUnit
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparing an organic-inorganic compound fertilizer from kitchen waste, and is characterized in that the kitchen waste is divided into three parts which are respectively and independently treated, and oil which is difficult to utilize by biological bacteria is used as a biodiesel raw material; moisture and thick slurry generated in the filter pressing process aretreated, and fermentation is carried out by adopting a composite biological agent to prepare the liquid fertilizer meeting agricultural production; and kitchen waste solid organic matter is fermentedthrough the composite biological agent and then mixed with steel slag micro powder to be uniform and aged, degradation of mineral substances in steel slag by biological bacteria is utilized, medium elements and microelements of the steel slag can be better absorbed by plants, and the organic-inorganic compound fertilizer is prepared. The method has the characteristics of short cycle time, simpletreatment equipment, convenience in operation, low production cost, economy, environmental protection and the like, realizes complete recycling of the kitchen waste, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of solid waste utilization, in particular to a method for preparing organic-inorganic compound fertilizer by using kitchen waste. Background technique [0002] Food waste is mainly produced in the daily consumption process of residents and is an important part of municipal solid waste. With the rapid development of the economy and the improvement of people's living standards, the output of global food waste continues to increase, and more than 1.3 billion tons of food produced every year are wasted. In 2015, the amount of food waste generated in China was about 56.57 million tons, of which the amount generated in East China accounted for about 43.18%, followed by the western and central regions. A large amount of food waste has brought serious environmental problems. If it is not handled properly, it may lead to the spread of diseases, pollute ground and surface water, and generate odors. But to a certain extent, fo...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/04C05G5/20C05G3/00C05G5/12C10L1/00
CPCC05F9/04C05G5/20C05G3/00C05G5/12C05D3/04C10L1/00C05D9/00Y02A40/20
Inventor 王昭然李灿华张永柱梁倩张云云陈昆先冯珊珊于巧娣查雨虹徐文珍何川
Owner 宣城市安工大工业技术研究院有限公司