Method for accelerating sludge settling, concentrating and dehydrating by vibration

A technology of sludge precipitation and sludge concentration, applied in the direction of dehydration/drying/concentrated sludge treatment, etc., can solve the problems of a lot of costs, inability to achieve sanitary landfill and incineration of sludge, and spending a lot of time and space.

Inactive Publication Date: 2010-06-16
向连城
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current sludge treatment process, the water content of the sludge after sedimentation, concentration and mechanical dehydration is generally above 80%, which cannot meet the requirements for sanitary landfill and incineration of sludge
[0003] In the dredging of polluted sediments

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 accelerating sludge settling, concentrating and dehydrating by vibration
  • Method for accelerating sludge settling, concentrating and dehydrating by vibration
  • Method for accelerating sludge settling, concentrating and dehydrating by vibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] exist figure 1 The sludge sedimentation, concentration and dehydration tank 1 is added with a vibrating device 4, 3 is the supernatant, and the vibrating device 4 composed of a drive motor drives a vibrator to generate a vibration force. The vibration force and gravity work together to accelerate the sludge 2. Precipitation, concentration, dehydration.

[0014] exist figure 2 In the actual sludge thickening tank 1, it is assumed that the diameter of the sludge thickening tank is 20 meters, and the height is 6 meters. Rotary mud scraping equipment is installed in the sludge thickening tank. In the pool body, rods made of metal, organic polymer materials or wood are used to connect the three-dimensional grid structure 5. The three-dimensional grid structure is divided into two parts, each part is 8.0 meters long, 3 meters high, and 2 meters wide. The three-dimensional grid structure The distance between the middle pole and the pole is 0.5 meters. The three-dimensional ...

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 sludge treatment in sewage treatment, including a method for settling, concentrating and dehydrating sludge and a method for settling, concentrating and dehydrating sludge in a similar lake and river desilting process. In the process of settling, concentration and dehydrating the sludge, the sludge is uniformly distributed in the water to form a relatively stable state, so the mud-water separation is hard to happen. The method adopted by the invention comprises that: a vibration source for generating vibration on the sludge is added to the sludge in the process of natural settlement and concentration of the sludge and mechanical concentration and dehydration of the sludge; and a vibration force with the same direction as the gravity or the extrusion force is generated by a vibration device and breaks the relatively stable state of the sludge and water in the mixture of the sludge and water so as to accelerate the mud-water separation and speed up the sludge settlement, concentration and dehydration.

Description

technical field [0001] The invention relates to sludge treatment in sewage treatment, including methods for sludge sedimentation, concentration, and dehydration, as well as methods for sedimentation, concentration, and dehydration of sludge in the process of dredging lakes and rivers. By adopting the method in this invention, the effects of sedimentation, concentration and dehydration of sludge are improved. Background technique [0002] Activated sludge method is currently the most widely used sewage biological treatment technology in the world, but it has always had a big disadvantage, that is, it will produce a large amount of excess sludge. The amount of residual sludge generated is generally 0.3% to 0.5% of the sewage treatment capacity (calculated with a water content of 97%), which is an astonishing amount. At the same time, the investment and operating costs of sludge treatment are huge, accounting for 25% to 65% of the investment and operating costs of the entire s...

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): C02F11/12
Inventor 向连城
Owner 向连城
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