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Preparation process of washable geosynthetic material for agricultural and forestry soil remediation treatment

A geosynthetic material and soil remediation technology, which is applied in the field of preparation technology of geosynthetic materials for soil remediation and treatment, can solve the problems of long time of bioremediation technology and strong crop pertinence.

Active Publication Date: 2021-03-12
WUXI SUOLIDE TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bioremediation technology takes a long time, and the crops are highly targeted, so it is difficult to carry out comprehensive restoration of toxic and harmful agricultural and forestry soils and the purpose of removing harmful substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation process of wash-resistant geosynthetics for agricultural and forestry soil restoration and management according to the present invention comprises that the bright polyester base slices with an intrinsic viscosity of about 0.68 go through the two-stage solid-phase thickening process of the SSP system to obtain an intrinsic viscosity of about 1.08 High-viscosity polyester chips; the viscosified chips are extruded and melted by a screw extruder, and the melt is transported to each spinning position through a melt pipeline; filaments are sprayed out through the micropores of the spinneret in the spinning assembly; Cooling forming, oiling and clustering; then multi-stage drawing and shaping, in which the special activating oil agent mixed with high-efficiency composite repair agent is oiled before the second-stage drawing; finally, it is wound and formed by a winding machine to obtain the product .

[0024] Further, the multi-stage draft setting includes a fi...

Embodiment 2

[0035] The preparation process of wash-resistant geosynthetics for agricultural and forestry soil restoration and management according to the present invention comprises that the bright polyester base slices with an intrinsic viscosity of about 0.68 go through the two-stage solid-phase thickening process of the SSP system to obtain an intrinsic viscosity of about 1.08 High-viscosity polyester chips; the thickened chips are extruded and melted by a screw extruder, and the melt is transported to each spinning position through the melt pipeline; the filaments are sprayed out through the micropores of the spinneret in the spinning assembly; the primary fibers are passed through Cooling forming, oiling and clustering; then multi-stage drawing and shaping, in which the special activating oil agent mixed with high-efficiency composite repair agent is oiled before the second-stage drawing; finally, it is wound and formed by a winding machine to obtain the product .

[0036] Further, t...

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Abstract

The invention relates to a preparation process of a washable geosynthetic material for agricultural and forestry soil remediation treatment. The preparation process comprises the following steps of carrying out SSP system two-stage solid-phase tackifying on a light polyester basic slice to obtain a high-viscosity polyester slice; extruding and melting a tackifying slice through a screw extruder, and conveying a melt to each spinning position through a melt pipeline; spraying filaments through spinneret plate micropores in a spinning assembly; carrying out cooling molding and oiling bundling onnascent fibers; carrying out multi-stage drafting and shaping, wherein a special activation oil agent mixed with an efficient composite repairing agent is used for oiling before the second-stage drafting; and finally, performing winding and forming by a winding machine to obtain the product. According to the process, a processing technology of oiling with the activating oil agent is adopted, on the basis of spinning processing of polyester industrial yarns, high-performance polyester industrial yarns which have adsorption and fixation effects on heavy metal ions and have a catalytic degradation effect on pesticide residues are produced, and then the high-performance polyester industrial yarns are woven into the geosynthetic material. The geosynthetic material is used for repairing and treating agriculture and forestry soil with heavy metals, pesticides and the like exceeding standards.

Description

technical field [0001] The invention relates to a preparation process of a geosynthetic material, in particular to a preparation process of a geosynthetic material for soil restoration and control. Background technique [0002] With the continuous acceleration of the industrialization process, the irrational mining of mineral resources and their smelting discharge, long-term sewage irrigation and sludge application to the soil, atmospheric deposition caused by human activities, and the application of chemical fertilizers and pesticides have caused serious soil pollution. . [0003] At present, there are mainly physical restoration, chemical restoration and biological restoration methods in the restoration of agricultural, forestry and pasture land. (1) The physical remediation method is mainly applied to the remediation technology of inorganic pollutants in polluted soil. According to the physical characteristics of the soil medium and pollutants, different methods are use...

Claims

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Application Information

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IPC IPC(8): D01D5/08D01D5/096D01D5/16D01F6/62D01F11/08
CPCD01D5/08D01D5/096D01D5/16D01F6/62D01F11/08
Inventor 金亮王华平马建平戴锁洪柯福佑江振林王海波
Owner WUXI SUOLIDE TECH DEV CO LTD
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