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Sludge paper and preparation method thereof

A technology of sludge and municipal sludge, which is applied in special paper, paper, papermaking, etc., can solve the problems of backward integration of forest and paper and reduce the use of forest resources.

Inactive Publication Date: 2018-03-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to effectively utilize sludge and waste fiber resources to prepare an environmentally friendly sludge paper, thereby opening up a new industrial utilization method for sludge resources, reducing the use of forest resources, and solving the problem of relatively backward integration of forestry and paper

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] A preparation process of sludge paper: 48-90 parts of plant fibers, 9-50 parts of sludge, 0-3 parts of binders, 0-3 parts of lubricants, and an appropriate amount of water. Plant fibers are base paper fibers, waste paper fibers, bamboo fibers, straw fibers, and the like. The sludge is municipal sludge, river sludge or industrial sludge after harmless treatment. The binder includes one or more of cationic rosin gum, polyvinyl acetate, polyvinyl alcohol, polyacrylate, starch and its modified compounds, and natural gums. The lubricant is one or more of stearic acid, polyethylene wax, paraffin, ethylene bis-stearamide and the like. The preparation process includes the following steps:

[0017] The first step: the plant fiber is crushed and pretreated to obtain finer plant fiber;

[0018] The second step: stir the treated plant fiber, sludge, binder, lubricant and water evenly to prepare slurry;

[0019] The third step: the mixed slurry is made into paper through dehydra...

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Abstract

The invention relates to a sludge paper and a preparation method thereof. The sludge paper is prepared from sludge, plant fibers, an adhesive, a lubricant and water, and is prepared by the following steps of mixing, stirring, dewatering, forming, drying, calendering, cutting and the like. The prepared sludge paper has the advantages that the sludge and the plant fibers are used as the main raw materials, so that the utilization rate of the sludge is high, and the usage amount of plant (paper) fibers is effectively reduced; the green and environment-friendly effects are realized, the density islow, the cost is low, the sludge paper can be directly discarded or reduced into soil after use, and the good practical value and environmental value are realized.

Description

technical field [0001] The invention relates to the technical field of sludge reuse and biomass material preparation, and mainly relates to the resource utilization of sludge and the preparation of new environmentally friendly paper. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection and the gradual deepening of understanding of energy crisis and resource constraints, the research on replacing forest resources with other biomass resources has received more and more attention. [0003] With the gradual acceleration of industrialization and urbanization in my country, the water consumption and drainage in cities have also gradually increased, which has intensified the rapid growth of sludge output in sewage treatment plants. However, the treatment and disposal measures for sludge are not perfect. At present, more than 5,000 tons of sludge produced by sewage treatment plants in Jiangsu Province alone are dispose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21F11/00D21H17/01D21H17/21D21H17/36D21H17/37D21H17/28D21H17/24D21H17/14D21H17/35D21H17/07
Inventor 孙昊曹延芬王雅彤卢莉璟胡雁龙李霖
Owner JIANGNAN UNIV