Embedded type ecological slope protection and preparation method thereof

An ecological slope protection and grass seeding technology, applied in chemical instruments and methods, coastline protection, water/sludge/sewage treatment, etc., can solve the problems of low sludge utilization rate and high production cost, and achieve high utilization rate and low cost , Enhance the effect of mass transfer

Inactive Publication Date: 2015-04-29
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has low utilization rate of sludge, additional fertilizer and high temperature heating are required, and the production cost is high

Method used

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  • Embedded type ecological slope protection and preparation method thereof
  • Embedded type ecological slope protection and preparation method thereof
  • Embedded type ecological slope protection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] FeCl 3 , AlCl 3 , MgCl 2 CaO and CaO were mixed with water to prepare a solution with a concentration of 5%, and put them into four liquid storage tanks 2 for standby; Send into centrifugal filter all-in-one machine 4, simultaneously FeCl 3 , AlCl 3 The solution is sent to the centrifugal filter integrated machine 4 by the metering pump 3 respectively. Under the action of shearing force and centrifugal force, the sludge cell wall is destroyed, the pathogenic microorganisms are inactivated, and the adsorbed heavy metals are dissolved out; the mixed slurry is centrifugally filtered, and the heavy metals The filtrate is transported to the sewage treatment plant through pipelines, and the filtered sludge has a water content of about 80% and enters the planetary mixer 6; 2 The metering pump 3 connected to the liquid storage tank 2 of the CaO solution transports the MgCl2 solution and milk of lime from the liquid storage tank 2 to the planetary mixer 6, and simultaneously...

Embodiment 2

[0031] The operation process is the same as in Example 1, the difference is that the mixing ratio of excess sludge and chemical raw materials is (in terms of dry matter): excess sludge: 85%; FeCl 3 : 3%; AlCl 3 3: 2%; MgCl 2 : 5%; CaO: 5%.

[0032] Example 2

[0033] The operation process is the same as in Example 1, and the mixing ratio of various materials is (in terms of dry matter): residual sludge: 90%, FeCl 3 : 2%; AlCl 3 : 1.5; MgCl 2 : 3%; CaO: 3.5%.

Embodiment 3

[0035] The operation process is the same as in Example 1, and the mixing ratio of various materials is (in terms of dry matter): residual sludge: 94%; FeCl 3 : 2%; AlCl 3 : 1%; MgCl 2 : 2%; CaO: 1%.

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Abstract

The invention relates to embedded type ecological slope protection and a preparation method thereof, wherein the embedded type ecological slope protection provided by the invention is low in production cost, high in sludge aerobic digestion rate, heavy metal leaching rate and slope protection strength, good in killing effect of pathogenic microorganism in sludge and wide in applicable range; and the water-retaining property and the fertilizer efficiency of sludge are sufficiently utilized. The embedded type ecological slope protection disclosed by the invention comprises grass seeds, excess sludge and chemical materials; and the mass percentages of the excess sludge and the chemical materials are as follows: 85-95% of excess sludge (dry matter), 1.5-3% of FeC13, 0.5-2% of AlC13, 2-5% of MgC12, and 1-5% of CaO.

Description

technical field [0001] The invention relates to an implanted ecological slope protection and a preparation method thereof. Background technique [0002] The river slope stabilization methods commonly used at present include: iron grid block stone slope protection, masonry stone slope protection, geotextile slope protection, artificial vegetation ecological slope protection and ecological slope protection bricks, etc. Although iron mesh block stone slope protection, masonry stone slope protection and geotextile slope protection have the advantages of strong firmness and good durability, there are also some disadvantages: on the one hand, a large number of earthwork operations during the construction process cause pollution to the surface and groundwater; The covering of engineering materials such as rocks and geotextiles has changed the ecological environment of the original species and inevitably destroyed the balance of the ecosystem. The artificial vegetation ecological s...

Claims

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Application Information

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IPC IPC(8): C04B28/30C04B18/30C05G3/00E02B3/12C02F11/00
CPCY02W30/91
Inventor 胡筱敏姜彬慧黄永刚刘金亮王一迪
Owner NORTHEASTERN UNIV
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