Vertical non-stirred organic waste dry-type anaerobic digestion processing equipment and method

A technology for digestion and treatment of organic waste, applied in the field of solid waste treatment technology and biomass energy, can solve the problems that affect the normal operation of the digestive system, acidification of fermentation materials, scum and sedimentation, etc., to overcome homogeneous mixing Difficulty, easy maintenance and management, small footprint

Inactive Publication Date: 2009-03-11
SOUNDGRP CO LTD
View PDF0 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the dry anaerobic system, the wet anaerobic system has many disadvantages: for example (1) the equipment volume of the wet anaerobic digestion system is 2 to 3 times that of the dry type, so it occupies a large area, high investment, and energy consumption Large, high operating costs; (2) Scum and sediment are likely to be generated during the treatment process of the wet anaerobic digestion system, whi

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
  • Vertical non-stirred organic waste dry-type anaerobic digestion processing equipment and method
  • Vertical non-stirred organic waste dry-type anaerobic digestion processing equipment and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] This embodiment provides a vertical non-stirring organic waste dry-type anaerobic digestion treatment equipment, the equipment structure is as follows figure 1 As shown, it specifically includes: feed storage tank 1, vertical digestion tank 2, discharge port 3, feed and inoculum mixing tank 4, material delivery pump 5, biogas slurry discharge pipe 6, biogas slurry pH online monitor 7. Biogas slurry return pump 8, biogas slurry spray device 9, lye storage tank 10, feed port 11 and gas outlet 12;

[0031] Wherein, the tank body of the vertical digestion tank is composed of an upper cylinder and a lower cone, the height-to-diameter ratio of the upper cylinder and the lower cone is 2-3:1, and the apex angle of the lower cone is 60±5°. There is a feed inlet and an air outlet on the top, and a discharge outlet on the bottom of the digestive tank; the tank body with this structure can save the need to install a stirring device, so that the materials in the tank are in the form...

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 discloses vertical equipment for treating organic waste by dry anaerobic digestion without stirring and a method thereof. The equipment comprises that a feed port and an air outlet are arranged on the vertical digester; a discharge port is arranged on the bottom of the vertical digester; a feeding storage tank is connected with the discharge port of the vertical digester through a pipeline, an inoculation mixing tank and a delivery pump; the discharge port of the vertical digester is connected with the inoculation mixing tank through a control valve; a biogas slurry discharge pipe is arranged on the lower part of the vertical digester, and is connected with a spraying device arranged on the upper part of the vertical digester through a pH value on-line monitor, a reflux pump sequentially; and an alkali solution storage tank is connected with the reflux pump through the pipeline and the control valve. The vertical equipment for treating organic waste by dry anaerobic digestion without stirring and the method thereof overcome the defects of difficult isotrope mixing, easy isotrope acidification and the like of the prior dry anaerobic digestion system, and is applicable to treatment on household organic garbage, kitchen garbage, excrement of fowls and livestocks, agricultural waste, garden garbage, sewage sludge and other organic waste.

Description

technical field [0001] The invention relates to an organic solid waste treatment technology, in particular to a device and method capable of degrading organic solid waste and generating clean energy biogas through anaerobic digestion technology under high solid content conditions, belonging to solid waste treatment technology and Biomass technology field. Background technique [0002] A large amount of organic solid waste is produced in daily life and production activities, mainly including domestic organic waste, kitchen waste, poultry manure, agricultural waste, garden waste, sewage sludge and so on. If these organic wastes are not treated effectively, they will easily cause adverse effects on the environment. [0003] The use of anaerobic digestion technology to treat organic solid waste can not only realize the harmless treatment of waste, but also recover biogas (80-400m3 / t solid waste), and the generated biogas can be used for heat production, power generation, supply...

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): C12M1/107C12M1/34C12P5/02B09B3/00
CPCC12M29/02Y02E50/343C12M33/04C12M21/04C12M45/02C12M41/26Y02E50/30
Inventor 申欢文一波王凯李天增宁桂兴
Owner SOUNDGRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap