Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for carrying out sludge aerobic composting by using cane sugar and straws as carbon source conditioning agents

A carbon source regulator and aerobic composting technology, which is applied in the preparation and application of organic fertilizers, organic fertilizers, etc., can solve the problems of large nitrogen loss, increase nitrogen content, reduce ammonia volatilization, and increase humus content Effect

Inactive Publication Date: 2012-08-22
HARBIN INST OF TECH
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of large nitrogen loss during sludge aerobic composting, and provides a method for sludge aerobic composting using sucrose and straw powder as carbon source regulators

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 carrying out sludge aerobic composting by using cane sugar and straws as carbon source conditioning agents
  • Method for carrying out sludge aerobic composting by using cane sugar and straws as carbon source conditioning agents
  • Method for carrying out sludge aerobic composting by using cane sugar and straws as carbon source conditioning agents

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific Embodiment 1: In this embodiment, the method of using sucrose and straw powder as a carbon source regulator to carry out sludge aerobic composting is carried out in the following steps: 1. Mix sucrose and straw powder evenly in a mass ratio of 6 to 8:3, Wherein straw powder and sucrose moisture content are below 5%, as carbon source regulator; 2, conditioner and dewatered sludge are mixed uniformly by mass ratio 1: 1, obtain mixture; 3, conditioner and dehydration in step 2 The mixture of sludge is composted at high temperature, and the ventilation rate is 0.05-2m 3 / min, monitor the temperature of the compost during the composting process, add the carbon source regulator in step 1 after reaching the high temperature period for 18-24 hours, mix and stack until the temperature of the compost reaches the ambient temperature, stop ventilation, and complete high-temperature composting; step 3 The mass ratio of the medium carbon source regulator to the mixture is 1:...

specific Embodiment approach 2

[0016] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, sucrose and straw powder are mixed evenly at a mass ratio of 7:3. Others are the same as the first embodiment.

specific Embodiment approach 3

[0017] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the conditioning agent in step 2 is sawdust, straw or straw. Others are the same as in the first or second embodiment.

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

A method for carrying out sludge aerobic composting by using cane sugar and straws as carbon source conditioning agents aims to solve the problem of high nitrogen loss during sludge aerobic composting, and includes the steps: firstly, uniformly mixing the cane sugar with the straws to be used as the carbon source conditioning agents; secondly, uniformly mixing the conditioning agents with dewatered sludge so that a mixture is obtained; and thirdly, subjecting the mixture of the conditioning agents and the dewatered sludge in the step two to high-temperature composting, monitoring the temperature of a compost during composting, adding the carbon source conditioning agents in the step one after a high-temperature period is achieved for 18-24h, composting in a mixed manner until the temperature of the compost achieves the ambient temperature, and stopping ventilation so that high-temperature compositing is completed. The method can reduce volatilization of ammonia gas, can lower nitrogenloss, can increase the humus content of compost products, and is used for the field of aerobic sludge composting.

Description

technical field [0001] The invention relates to a method for aerobically composting sludge by using sucrose and straw powder as carbon source regulators. Background technique [0002] With the development of urbanization in my country, the discharge of urban domestic sewage continues to increase, and the number of sewage treatment facilities continues to increase. The accompanying dewatered sludge produced in the sewage treatment process has become a new environmental problem. Therefore, the resource utilization of urban domestic sewage sludge has become a New environmental research hotspot. Among the many sludge recycling methods, the sludge aerobic fermentation method is favored by people because of its low capital investment and operating costs, stable sludge, high degree of harmlessness, convenient operation, and the fermentation product can be used in agriculture. focus on. However, during the composting process, a large amount of ammonia gas is produced due to the lar...

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
IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 李伟光李云蓓
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com