A rapid dehydration seepage channel construction method and application

A technology of seepage channel and construction method, applied in chemical instruments and methods, water/sludge/sewage treatment, sludge treatment, etc., can solve the problem of no seepage channel, etc., and achieve the effect of not easily deformed

Active Publication Date: 2022-01-04
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a systematic water seepage channel can be formed in the sludge body directly to the outside of the sludge, the dewatering efficiency of the sludge can be greatly improved, but there are almost no seepage channels of this type at present

Method used

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  • A rapid dehydration seepage channel construction method and application
  • A rapid dehydration seepage channel construction method and application
  • A rapid dehydration seepage channel construction method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take a plastic mesh screen with a mesh size of 5 mm and a wire diameter of 1.2 mm, and trim it to round hanging board; take 4.42g of 60S / 2, 80% skin-friendly velvet and 20% fiber velvet blended thread, cut each thread to a length of 12cm, and tie each thread to the intersection point of the warp and weft threads of the screen to naturally sag; Every two columns on the left are twisted with 4 water seepage lines adjacent to each other (3 water seepage lines are twisted at both ends), if the last column is left, twist with two water seepage lines until all are twisted to form the first layer of weft net; The second layer of weft net is twisted with 2 adjacent water seepage lines in the first column, and 4 adjacent water seepage lines (three water seepage lines at both ends of the circle) are twisted with each other from the second column; the third The layer weft mesh twisting method is the same as the first layer weft mesh; the layer height of each layer of weft mesh is...

Embodiment 2

[0047] Take a plastic mesh screen with a mesh hole of 10mm and a wire diameter of 1.0mm, and trim it into a square hanging board of 100×100; take 2.56g of 60S / 2, 80% skin-friendly velvet and 20% fiber velvet blended yarn, and cut each strand to a length of 15cm , hang each wire to the intersection point of the longitude and latitude lines of the screen, and naturally droop; from the left, every two adjacent rows of 4 water seepage threads are twisted (the last remaining 2 wires are twisted), if there is one row remaining at the end, the water seepage is done in pairs The threads are twisted until they are all twisted to form the first layer of weft net; the second layer of weft net is twisted according to two adjacent water seepage lines in the first row, and every two adjacent water seepage lines in the second row are twisted together. Twisting; the twisting method of the third layer of weft mesh is the same as that of the first layer of weft mesh; the layer height of each lay...

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Abstract

The invention discloses a fast dehydration seepage channel construction method and its application, comprising: tying hemp, cotton, and velvet blended threads to the intersection points of longitude and latitude of certain mesh hanging boards in a square or circular shape, so as to droop naturally. Then the first layer of weft net is twisted with each other with 4 branches adjacent to each other (three branches at both ends of the circular hanging board), and then separated to restore the arrangement corresponding to the square or circle; the first row of the second layer of weft net is arranged in phase Twisting of 2 adjacent branches, starting from the second row, every two adjacent 4 branches (three branches at both ends of the circular hanging board) are twisted with each other; the weft net of the third layer is the same as that of the first layer of net, and thus circulates. In the last layer, according to the size of the water filter hole at the bottom of the dehydration reactor, the adjacent water seepage thread is twisted into a water filter rope with a diameter roughly the same as that of the filter hole, so that a three-dimensional interactive warp-knitted water seepage channel can be obtained. The seepage channel is filled in the sludge dehydration reactor, which can significantly reduce the specific resistance of the sludge, accelerate the sludge dehydration, increase the thickness of the filter press sludge layer, increase the output of the filter press sludge, and reduce the cost of sludge dewatering.

Description

technical field [0001] The invention relates to a construction method of a fast dehydration seepage channel using three-dimensional interactive warp knitting, and belongs to the field of sludge dehydration treatment and disposal in environmental protection. Background technique [0002] Sludge dewatering has always been a worldwide problem. In recent years, with the continuous expansion of city scale and the further improvement of environmental protection requirements, the excess sludge produced by sewage treatment plants is also increasing day by day, which must be fully treated, and its moisture content is as high as 95-99%. implementation, a large number of rivers and lakes need to be cleaned and treated, which will inevitably produce a large amount of ecological dredging silt. These sludges need to be dehydrated to make the water content as low as 70% and below before final disposal. In addition, the production wastewater treatment of enterprises will also produce a la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/121
CPCC02F11/121
Inventor 皮科武施卓时亚飞张会琴
Owner HUBEI UNIV OF TECH
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