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A paper-making sludge fiber microporous oil-absorbing compound and its preparation method and application

A papermaking sludge and composite technology, applied in the field of environmental engineering, can solve the problem of wasting high-quality cellulose materials, etc., and achieve the effects of easy removal and cleaning, enhanced environmental friendliness, and enhanced degradability

Active Publication Date: 2020-09-11
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional disposal methods for paper sludge are landfill or incineration, which waste the high-quality cellulosic material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A paper-making sludge fiber microporous oil-absorbing compound, which is composed of sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent; wherein sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent The volume ratio is 22:36:9:15;

[0028] Wherein the preparation method of the sludge fiber masterbatch is as follows: first, the primary sludge and the secondary sludge are stirred at a high speed, the stirring speed is 240r / min, and the stirring time is 40s, so that the viscosity of the primary sludge and the secondary sludge Reduce to less than 2900mPa s; then add potassium sodium tartrate with a mass percentage of 1.0% of the total mass of primary sludge and secondary sludge, and then use a drum speed of 1500r / min and a differential speed of 1.5r / min to remove coarse inorganic and then dried at a temperature of 90°C for 30 minutes to prepare a sludge fiber masterbatch.

[0029] The polyurethane prepolymer is prepare...

Embodiment 2

[0041] A paper-making sludge fiber microporous oil-absorbing compound, which is composed of sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent; wherein sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent The volume ratio is 35:50:12:20;

[0042] Wherein the preparation method of the sludge fiber masterbatch is as follows: First, the primary sludge and the secondary sludge are stirred at a high speed, the stirring speed is 240r / min, and the stirring time is 60s, so that the viscosity of the primary sludge and the secondary sludge Reduce to less than 2900mPa·s; then add potassium sodium tartrate with a mass percentage of 1.5% of the total mass of primary sludge and secondary sludge, and then use a drum speed of 1700r / min and a differential speed of 2.0r / min to remove coarse inorganic and then dried at 105°C for 45 minutes to prepare a sludge fiber masterbatch.

[0043] The polyurethane prepolymer is prepared by the follow...

Embodiment 3

[0055] A paper-making sludge fiber microporous oil-absorbing compound, which is composed of sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent; wherein sludge fiber masterbatch, polyurethane prepolymer, stabilizer and foaming agent The volume ratio is 30:45:10:18;

[0056] Wherein the preparation method of the sludge fiber masterbatch is as follows: First, the primary sludge and the secondary sludge are stirred at a high speed, the stirring speed is 240r / min, and the stirring time is 50s, so that the viscosity of the primary sludge and the secondary sludge Reduce to less than 2900mPa s; then add potassium sodium tartrate with a mass percentage of 1.2% of the total mass of primary sludge and secondary sludge, and then use a drum speed of 1600r / min and a differential speed of 1.8r / min to remove coarse inorganic and then dried at 98°C for 40 minutes to prepare a sludge fiber masterbatch.

[0057] The polyurethane prepolymer is prepared by the followi...

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Abstract

The invention belongs to the technical field of environment engineering, particularly relates to a micropore oil-absorption compound prepared by paper mill sludge fibers and a preparation method and application of the micropore oil-absorption compound, and aims to solve problems in the prior art. The micropore oil-absorption compound comprises sludge fiber master batch, polyurethane prepolymer, astabilizer and a foaming agent, wherein the volume ratio of the sludge fiber master batch to the polyurethane prepolymer to the stabilizer to the foaming agent is (22-35):(36-50):(9-12):(15-20). The micropore oil-absorption compound has the advantages that the raw materials of the micropore oil-absorption compound are cheap and easy to obtain, and the preparation method of the micropore oil-absorption compound is simple; the micropore oil-absorption compound is applicable to unexpected large-area or large-volume oil leakage pollution occasions, can fast build a strip-shaped and flaky oil-absorption zone to enclose the oil leakage range or be combined with concrete, wood blocks and sand bags to fast form an oil-absorption dam, and can build a barrier zone of 3-10m<3> within 5-10 minutes.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to a paper-making sludge fiber microporous oil-absorbing compound and its preparation method and application. Background technique [0002] Papermaking sludge has a large output, complex components, and is difficult to handle, which has caused huge pollution hazards to the ecological environment. It has become a research hotspot and difficulty in the field of environmental protection in recent years. Papermaking sludge mainly includes: primary sludge produced in the raw wood fiber production process of paper mills, deinking sludge produced by deinking recycled waste paper, and secondary sludge produced by end products of sewage treatment in paper mills. The mixture of primary sludge and secondary sludge is also called mixed sludge. The organic matter content of papermaking sludge is 38% to 51%, mainly containing high molecular weight organic matter suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28C02F1/28C02F1/40C08G18/32C08G18/42C08G18/66
CPCB01J20/24B01J20/26B01J20/28023B01J20/2808C02F1/285C02F1/286C02F1/40C02F2103/007C08G18/3281C08G18/42C08G18/6655
Inventor 张弛闫维佳李超杨志宏张晋嵩张逸帆
Owner TAIYUAN UNIV OF TECH
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