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

A Method for Evaluating Material Transformation Efficiency in Composting Process

A conversion efficiency and composting technology, applied in fluorescence/phosphorescence, color/spectral property measurement, material excitation analysis, etc., can solve the problems of complex determination process, high conversion efficiency of organic matter, short decomposing period, etc., and achieve simple extraction and analysis process. , The effect of short evaluation time and low technical requirements

Active Publication Date: 2014-10-15
CHINESE RES ACAD OF ENVIRONMENTAL SCI
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material conversion efficiency in the composting process directly affects the cost of composting: the conversion efficiency of organic matter in the composting process is high, and the maturity period is short, which not only saves composting space, but also reduces the power cost required for composting; Increasing the civil construction cost of the composting plant will also increase the power consumption cost of the unit composting product
[0003] During the composting process, organic matter degrades, produces carbon dioxide and water, and forms humus-like substances. Therefore, it can be evaluated by the reduction rate of compost material volume and mass, the rate of carbon dioxide generation, the rate of oxygen consumption, and the rate of humification synthesis. Composting material conversion efficiency, but these methods or measurement process are complicated, or cannot accurately reveal the composting material conversion efficiency from the microstructure, and cannot provide accurate guidance for improving the composting process

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
  • A Method for Evaluating Material Transformation Efficiency in Composting Process
  • A Method for Evaluating Material Transformation Efficiency in Composting Process
  • A Method for Evaluating Material Transformation Efficiency in Composting Process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, the first is compost sample collection and water-soluble organic matter extraction. In a domestic waste composting plant in Beijing, the compost raw materials, compost samples on the 7th, 14th, 21st and 51st days were collected and marked as 0d, 7d, 14d, 21d, and 51d respectively. / ml), add double distilled water to the sample, shake for 8 hours, take the supernatant after centrifugation and pass through a 0.45 μ filter membrane to obtain compost water-soluble organic matter.

[0038] Determination of water-soluble organic matter content and concentration adjustment: Determination of the carbon concentration (DOC) of water-soluble organic matter in compost, after adjusting the carbon concentration of water-soluble organic matter in all compost samples to 7.0 mg / L, the characteristic ultraviolet and fluorescence spectral parameters were measured.

[0039] Determination of characteristic ultraviolet and fluorescence spectral parameters: measure th...

Embodiment 2

[0043] The compost samples were collected on 0, 7, 14, 21, and 28 days in a cow manure composting plant in Hebei, and were marked as 0d, 7d, 14d, 21d, and 28d, respectively. Add double-distilled water to the sample, shake for 10 hours, take the supernatant after centrifugation and pass through a 0.45 μ filter membrane to obtain compost water-soluble organic matter.

[0044] Water-soluble organic matter content determination and concentration adjustment. The water-soluble organic carbon concentration (DOC) of the compost was measured. After adjusting the water-soluble organic content of all compost samples to 6.0 mg / L, the characteristic ultraviolet and fluorescence spectral parameters were measured.

[0045] Determination of characteristic UV and fluorescence spectroscopic parameters. Measure the UV absorption value of water-soluble organics at 254 nm, and divide by its DOC concentration to obtain the UV-absorbing value SUVA of water-soluble organics per unit concentration 2...

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

No PUM Login to View More

Abstract

The invention relates to a method for evaluating material conversion efficiency of a compositing process, which mainly comprises the following steps of: (A) acquiring a sample and extracting a water-soluble organic matter; (B) measuring and regulating content and density of the water-soluble organic matter; (C) measuring parameters of characteristic ultraviolet and fluorescence spectrum; (D) analyzing similarity; and (E) evaluating composting material conversion efficiency. The method is simple to analyze, technical requirement is low, time required for evaluation is short, and the sizes of the material conversion efficiency of different composting times can be accurately compared.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment and resource utilization, and in particular relates to a method for evaluating the conversion efficiency of composting substances by comparing the similarity of the structures of water-soluble organic matter in different composting periods. Background technique [0002] Composting is an important resource treatment method for organic solid waste. During the composting process, organic matter undergoes mineralization and humification, generates carbon dioxide and water, and forms humus substances, which eventually reach stability. Composting process parameters, such as temperature, moisture content, ventilation, and turning frequency, are important factors that affect the conversion efficiency of composting materials. The conversion efficiency of substances in the composting process directly affects the cost of composting: the conversion efficiency of organic matter in the composting ...

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 Patents(China)
IPC IPC(8): G01N21/33G01N21/64
Inventor 何小松席北斗李丹潘红卫张进保
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI