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.
CN101734838AInactive Publication Date: 2010-06-16ε‘θΏžεŸŽ
0 Cites 9 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ε‘θΏžεŸŽ
Publication Date
2010-06-16
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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