CN111282960A - Preparation method of composite material made of paper mill sludge and plastic - Google Patents

Preparation method of composite material made of paper mill sludge and plastic Download PDF

Info

Publication number
CN111282960A
CN111282960A CN202010121550.4A CN202010121550A CN111282960A CN 111282960 A CN111282960 A CN 111282960A CN 202010121550 A CN202010121550 A CN 202010121550A CN 111282960 A CN111282960 A CN 111282960A
Authority
CN
China
Prior art keywords
plastic
sludge
paper
composite material
plastics
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010121550.4A
Other languages
Chinese (zh)
Inventor
郁永清
侯莉
黄利康
陈丽女
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Yongxi Environment Science & Technology Co ltd
Original Assignee
Shanghai Yongxi Environment Science & Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Yongxi Environment Science & Technology Co ltd filed Critical Shanghai Yongxi Environment Science & Technology Co ltd
Priority to CN202010121550.4A priority Critical patent/CN111282960A/en
Publication of CN111282960A publication Critical patent/CN111282960A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/004Sludge detoxification
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B2017/001Pretreating the materials before recovery
    • B29B2017/0015Washing, rinsing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • B29B2017/0213Specific separating techniques
    • B29B2017/0217Mechanical separating techniques; devices therefor
    • B29B2017/0224Screens, sieves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • B29B2017/0213Specific separating techniques
    • B29B2017/0217Mechanical separating techniques; devices therefor
    • B29B2017/0231Centrifugating, cyclones
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a preparation method of a composite material made of paper mill sludge and plastics, which comprises the following steps: treating the papermaking sludge, and recovering fibers in the papermaking sludge; the waste plastics are recycled and treated to obtain pure plastics; heating and mixing the recycled plastic and the fibers, then putting the mixture into a screw extruder or a plastic mixer for mixing, extruding the mixture by a die, and then cutting the mixture to obtain the composite material, wherein the treatment method of the papermaking sludge comprises the following steps: pretreating, drying, crushing and screening, wherein the pretreating comprises the following steps: based on the weight of the paper sludge; the method has good plastic recycling effect, is simple and convenient, not only ensures that the content of the recycled plastic is high, but also the performance of the plastic is well preserved, and the separated solvent can be recycled, thereby improving the economy of the technology, and the method can simply, conveniently and efficiently recycle the plastic, and the recovery rate can reach more than 90 percent.

Description

Preparation method of composite material made of paper mill sludge and plastic
Technical Field
The invention relates to the technical field of recycling of paper mill sludge and plastics, in particular to a preparation method of a composite material made of paper mill sludge and plastics.
Background
In order to protect the ever-decreasing forest spontaneous combustion resources, the regeneration paper is produced by utilizing waste paper, which is an inevitable trend in the paper industry at present. But a large amount of waste is generated in the production of recycled paper and in the production of paper, which poses serious environmental problems. There are many methods for recycling paper sludge, and longer fibers are used to make fiber composites; the sludge containing more fibers can be used for producing lactic acid; the sludge can also be used as fuel to recover energy, etc. And the amount of plastic waste is drastically increased due to the mass production, consumption and short life cycle of plastic. The great waste of the plastic not only causes the huge waste of resources, but also brings great harm to the environment: polluted soil and ocean are incinerated to produce a great amount of organic substances.
However, the existing paper sludge and plastics are complex to recycle and have low recycling rate, so a preparation method of a composite material made of paper sludge and plastics is needed to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of a composite material made of paper sludge and plastics.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a composite material made of paper mill sludge and plastics comprises the following steps:
s1, treating the paper making sludge and recovering fibers in the paper making sludge.
And S2, recycling the waste plastics and processing the waste plastics to obtain pure plastics.
S3, heating and mixing the recycled plastic and the fibers, then putting the mixture into a screw extruder or a plastic mixer for mixing, extruding the mixture from a die, and then cutting the mixture to obtain the composite material.
Further, the treatment method of the paper sludge in the step S1 comprises the following steps: pretreating, drying, crushing and screening.
Further, the pretreatment is as follows: based on the weight of the paper-making sludge, the biochemical paper-making sludge is added with a disinfectant and bactericide which contains 0.5 to 1 percent of the weight.
Further, the drying is drying the disinfected paper-making sludge.
Further, the crushing and screening adopt a conventional crushing method to crush the dried sludge and screen the sludge.
Further, the waste plastic recycling method comprises the following steps: feeding the waste plastic into a vibrating screen, introducing hot air for air drying, then feeding the waste plastic into the vibrating screen for screening, recycling the separated hard inorganic particles, and finally feeding the screened plastic into a cyclone separator to obtain the cleaned waste plastic.
Further, when the plastics and the fibers in the step S3 are heated and mixed, the polyolefin, the lubricant, the compatilizer, the ultraviolet absorber and the pigment are added into a mixer to be mixed to obtain a mixture.
Furthermore, when the waste plastics are recovered, the waste plastics are screened by a vibrating screen and then crushed by a crusher, and then the waste plastics are cleaned to a certain extent by a cleaning machine.
Further, the plastic is sent into a cyclone separator to obtain clean waste plastic, and then the adhesive and the stone powder are added and uniformly stirred for later use.
The invention has the beneficial effects that: the method has good plastic recycling effect, is simple and convenient, not only ensures that the content of the recycled plastic is high, the performance of the plastic is well preserved, but also can recycle the separated solvent, improves the economy of the technology, can simply, conveniently and efficiently recycle the plastic, has the recovery rate of over 90 percent, effectively removes high-adhesion substances such as soil, grease, printing ink and the like on the plastic, has closed cleaning process without pollutant discharge, has short process, can continuously work, has important significance for the high-quality recycling of the waste plastic, ensures that fibers in papermaking sludge are uniformly distributed in the recycled plastic through the introduction of the compatilizer, effectively improves the combination between the fibers and the plastic, thereby ensuring that the fibers can play a role in enhancing the plastic, improving the impact resistance of the composite material, Toughness and strength.
Drawings
FIG. 1 is a schematic diagram of a framework of a method for manufacturing a composite material by using paper sludge and plastics according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1, a method for preparing a composite material from paper sludge and plastics includes the following steps:
s1: the papermaking sludge is treated, pretreated, dried, crushed and screened, the fiber in the papermaking sludge is recovered, the treatment on the papermaking sludge is more convenient and the treatment effect is better,
the pretreatment comprises the following steps: based on the weight of the paper sludge, 1 weight percent of disinfectant and bactericide, such as hypochlorous acid, is added into the biochemical paper sludge to reduce the bacterial count of the sludge from 25000 per milliliter to 1500 per milliliter, and the paper sludge can not be pretreated without biochemical treatment. The biochemically treated paper sludge contains a large amount of microorganisms, and is propagated and degraded in the transportation and accumulation processes to generate odor, so that the bactericide is selected and added into hypochlorous acid to pretreat the raw materials, and the problem of environmental pollution caused by the odor of the sludge is solved;
drying is to dry the disinfected paper sludge so that the water content is reduced from 50 weight percent to 10 weight percent, preferably 6 weight percent;
crushing and screening the dried sludge by a conventional crushing method, and screening the sludge to obtain dry powder of 50 meshes, preferably 200 meshes.
S2: the waste plastic is recycled, and the waste plastic recycling method comprises the following steps: sending into the shale shaker and letting in hot-blast air-drying simultaneously, sifting out large granule earth, grit, iron fillings to make waste plastic loose, make waste plastic's surface expose, then smash the screening to the plastics that obtain, obtain waste plastic powder, with waste plastic powder and stereoplasm inorganic particle, stripping agent with the mass ratio 1: 0.2, mixing, rotating in a horizontal rotary cylinder at the rotating speed of 25rpm for 35min, activating grease and ink by a stripping agent in the rotating process, and stripping mud, grease and ink adhered to the surface of the waste plastic powder by utilizing the micro-friction grinding effect generated by hard inorganic particles; the hard inorganic particles are high-hardness and high-wear-resistance inorganic particles with the particle size larger than 3mm, and then are introduced into a vibrating screen for screening, the separated hard inorganic particles are recycled, and screen residues are a mixture consisting of waste plastics, stripped soil, grease, printing ink and a stripping agent; and finally, conveying the screened plastic into a cyclone separator, under the action of the cyclone separator, separating the stripped soil, grease, printing ink and stripping agent at the lower end of the separator, separating and recycling the plastic from the upper end due to small specific gravity to obtain clean waste plastic, conveying the plastic into the cyclone separator to obtain the clean waste plastic, adding an adhesive and stone powder, and uniformly stirring for later use.
S3: the recycled plastic and the fibers are heated and mixed, the polyolefin, the lubricant, the compatilizer, the ultraviolet absorbent and the pigment are added into a mixer to be mixed to obtain a mixture, the fibers in the papermaking sludge can be uniformly distributed in the composite material through the introduction of the compatilizer, the combination between the fibers and the plastic is improved, so that the prepared composite material has a better effect, the composite material is placed into a screw rod device or a plastic mixer to be mixed and then extruded by a die, the composite material is obtained through cutting, and the cutting temperature of a constant-temperature constant-pressure cutting device is 108 ℃.
Example 2
Referring to fig. 1, a method for preparing a composite material from paper sludge and plastics includes the following steps:
s1: the papermaking sludge is treated, pretreated, dried, crushed and screened, the fiber in the papermaking sludge is recovered, the treatment on the papermaking sludge is more convenient and the treatment effect is better,
the pretreatment comprises the following steps: based on the weight of the paper sludge, the biochemical paper sludge is added with a disinfectant containing 0.5 percent of the weight, such as hypochlorous acid, so that the bacteria number of the sludge is reduced from 20000/ml to 1000/ml, and the paper sludge can be not pretreated without biochemical treatment. The biochemically treated paper sludge contains a large amount of microorganisms, and is propagated and degraded in the transportation and accumulation processes to generate odor, so that the bactericide is selected and added into hypochlorous acid to pretreat the raw materials, and the problem of environmental pollution caused by the odor of the sludge is solved;
drying is to dry the disinfected paper sludge so that the water content is reduced from 50 weight percent to 8 weight percent, preferably 10 weight percent;
crushing and screening the dried sludge by a conventional crushing method, and screening the sludge to obtain dry powder of 80 meshes, preferably 100 meshes.
S2: the waste plastic is recycled, and the waste plastic recycling method comprises the following steps: sending into the shale shaker and letting in hot-blast air-drying simultaneously, sifting out large granule earth, grit, iron fillings to make waste plastic loose, make waste plastic's surface expose, then smash the screening to the plastics that obtain, the preliminary treatment is for smashing through the rubbing crusher earlier when the waste plastic retrieves, obtains waste plastic powder, with waste plastic powder and stereoplasm inorganic particle, stripping agent with mass ratio 1: 0.1, mixing, rotating in a horizontal rotary cylinder at the rotating speed of 30rpm for 30min, activating grease and ink by a stripping agent in the rotating process, and stripping mud, grease and ink adhered to the surface of the waste plastic powder by utilizing the micro-friction grinding effect generated by hard inorganic particles; the hard inorganic particles are high-hardness and high-wear-resistance inorganic particles with the particle size larger than 3mm, and then are introduced into a vibrating screen for screening, the separated hard inorganic particles are recycled, and screen residues are a mixture consisting of waste plastics, stripped soil, grease, printing ink and a stripping agent; and finally, conveying the screened plastic into a cyclone separator, under the action of the cyclone separator, separating the stripped soil, grease, printing ink and stripping agent at the lower end of the separator, separating and recovering the plastic from the upper end when the specific gravity of the plastic is small, conveying the plastic into the cyclone separator to obtain clean waste plastic, adding adhesive and stone powder, and uniformly stirring the waste plastic in a mixer for later use.
S3: the recycled plastic and the fibers are heated and mixed, the polyolefin, the lubricant, the compatilizer, the ultraviolet absorbent and the pigment are added into a mixer to be mixed to obtain a mixture, the fibers in the papermaking sludge can be uniformly distributed in the composite material through the introduction of the compatilizer, the combination between the fibers and the plastic is improved, so that the prepared composite material has a better effect, the composite material is placed into a screw rod device or a plastic mixer to be mixed and then extruded by a die, the composite material is obtained through cutting, and the cutting temperature of a constant-temperature constant-pressure cutting device is 120 ℃.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. The preparation method of the composite material manufactured by the paper mill sludge and the plastic is characterized by comprising the following steps:
s1, treating the paper making sludge and recovering fibers in the paper making sludge.
And S2, recycling the waste plastics and processing the waste plastics to obtain pure plastics.
S3, heating and mixing the recycled plastic and the fibers, then putting the mixture into a screw extruder or a plastic mixer for mixing, extruding the mixture from a die, and then cutting the mixture to obtain the composite material.
2. The method for preparing the composite material of paper sludge and plastics according to claim 1, wherein the step of the method for treating the paper sludge in S1 is as follows: pretreating, drying, crushing and screening.
3. The method for preparing the composite material made of the paper mill sludge and the plastics according to the claim 2, characterized in that the pretreatment is: based on the weight of the paper-making sludge, the biochemical paper-making sludge is added with a disinfectant and bactericide which contains 0.5 to 1 percent of the weight.
4. The method of claim 2, wherein the drying is drying the sterilized paper sludge.
5. The method as claimed in claim 2, wherein the crushing and screening is performed by crushing the dried sludge by a conventional crushing method and screening the crushed sludge.
6. The method for preparing the composite material made of the paper mill sludge and the plastic according to the claim 1, wherein the method for recycling the waste plastic comprises the following steps: then feeding the waste plastics into a vibrating screen, introducing hot air for air drying, then feeding the waste plastics into the vibrating screen for screening, recycling the separated hard inorganic particles, and finally feeding the screened plastics into a cyclone separator to obtain the cleaned waste plastics.
7. The method for preparing a composite material made of paper mill sludge and plastics according to claim 1, wherein when the plastics and the fibers are heated and mixed in S3, the polyolefin, the lubricant, the compatilizer, the ultraviolet absorber and the pigment are added into a mixer and mixed to obtain a mixture.
8. The method for preparing the composite material made of the paper mill sludge and the plastic as claimed in claim 6, wherein the waste plastic is recycled, screened by a vibrating screen, crushed by a crusher, and then cleaned to a certain extent by a cleaning machine.
9. The method for preparing the composite material by using the paper mill sludge and the plastic as claimed in claim 6, wherein the plastic is sent into a cyclone separator to obtain clean waste plastic, and the adhesive and the stone powder are added and uniformly stirred for later use.
CN202010121550.4A 2020-02-26 2020-02-26 Preparation method of composite material made of paper mill sludge and plastic Pending CN111282960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010121550.4A CN111282960A (en) 2020-02-26 2020-02-26 Preparation method of composite material made of paper mill sludge and plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010121550.4A CN111282960A (en) 2020-02-26 2020-02-26 Preparation method of composite material made of paper mill sludge and plastic

Publications (1)

Publication Number Publication Date
CN111282960A true CN111282960A (en) 2020-06-16

Family

ID=71030848

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010121550.4A Pending CN111282960A (en) 2020-02-26 2020-02-26 Preparation method of composite material made of paper mill sludge and plastic

Country Status (1)

Country Link
CN (1) CN111282960A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1406679A (en) * 2001-08-22 2003-04-02 韩晓伟 Filler made from papermaking sludge and its preparation and use
US6544447B1 (en) * 1999-04-07 2003-04-08 Thomas C. Faerber Method of paper sludge and plastics formulation
CN1448434A (en) * 2002-04-03 2003-10-15 韩晓伟 Composite material made from paper-making sludge and waste plastic, its prep. and grating material therefrom
CN101492329A (en) * 2009-02-19 2009-07-29 赵亮亮 Fibre complex particle produced with papermaking slurry and method of producing the same
EP2158978A1 (en) * 2008-08-26 2010-03-03 Litesso-Anstalt Method for manufacturing solid particles
CN103665524A (en) * 2013-12-11 2014-03-26 南京聚锋新材料有限公司 Paper sludge-polyolefin type composite sectional bar and preparation method thereof
CN104479223A (en) * 2014-12-18 2015-04-01 广西大学 Wood-plastic composite prepared by use of short fiber and preparation method thereof
CN107379321A (en) * 2017-07-06 2017-11-24 成都新柯力化工科技有限公司 A kind of method of the anhydrous clean and reuse of waste or used plastics
CN108530934A (en) * 2018-03-29 2018-09-14 徐州通用高新磁电有限公司 A kind of waste plastic recovery method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6544447B1 (en) * 1999-04-07 2003-04-08 Thomas C. Faerber Method of paper sludge and plastics formulation
CN1406679A (en) * 2001-08-22 2003-04-02 韩晓伟 Filler made from papermaking sludge and its preparation and use
CN1448434A (en) * 2002-04-03 2003-10-15 韩晓伟 Composite material made from paper-making sludge and waste plastic, its prep. and grating material therefrom
EP2158978A1 (en) * 2008-08-26 2010-03-03 Litesso-Anstalt Method for manufacturing solid particles
CN101492329A (en) * 2009-02-19 2009-07-29 赵亮亮 Fibre complex particle produced with papermaking slurry and method of producing the same
CN103665524A (en) * 2013-12-11 2014-03-26 南京聚锋新材料有限公司 Paper sludge-polyolefin type composite sectional bar and preparation method thereof
CN104479223A (en) * 2014-12-18 2015-04-01 广西大学 Wood-plastic composite prepared by use of short fiber and preparation method thereof
CN107379321A (en) * 2017-07-06 2017-11-24 成都新柯力化工科技有限公司 A kind of method of the anhydrous clean and reuse of waste or used plastics
CN108530934A (en) * 2018-03-29 2018-09-14 徐州通用高新磁电有限公司 A kind of waste plastic recovery method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘建伟,程磊,李汉军,田洪钰: "《生活垃圾综合处理与资源化利用技术》", 31 January 2008, 中国环境出版集团 *
蒋晓曙,李庆录: "《土木工程材料》", 31 January 2018, 知识产权出版社 *

Similar Documents

Publication Publication Date Title
CN1089738C (en) Processing waste materials for anaerobic digestion of the biogenic-organic constituents of the garbage, particularly of the source separated organic waste, the wet waste, the residual waste and ......
CN101474834B (en) Cyclic utilization method of waste and old rubber
CN106976995A (en) A kind of river sewage inorganic agent and preparation method
CN104070051B (en) Domestic garbage resource cleans method for separating
JP2017515676A (en) Method for sorting and / or treating waste and processing material produced by said method
CN102485788B (en) Crops waste material regenerated composite plastic plate and its production process
WO2014127600A1 (en) Method for comprehensive regeneration and utilization of urban household garbage and sludge
CN109435107A (en) A kind of recycling waste plastic process system
EP1687093B1 (en) Method and device for the wet-mechanical treatment of a substance mixture, particularly of refuse of all types
CN104311882A (en) Method for recovering waste stone powder
CN104058800A (en) Biotechnology method for treating household garbage
US8419949B2 (en) Method and device for separating fossil and native organic substances
CN110877987A (en) Kitchen garbage disposal machine
CN111282960A (en) Preparation method of composite material made of paper mill sludge and plastic
JP2010502426A5 (en)
CN113171750A (en) Method for preparing biochar from bottom mud and garden garbage and application of biochar
CN102528964B (en) Pesticide plastic bottle recycling method, agricultural plastic product and rice seeding tray
CN108589362B (en) A kind of dry isolated method of waste and old paper composite wallpaper
DE19612010A1 (en) Process coarse-shreds organic waste
CN113736278A (en) Fiber-plastic section floor tile and preparation method thereof
CN113151248B (en) Quick degradation method for perishable garbage and application thereof
CN109985890B (en) Method for fully recovering domestic garbage and processing domestic garbage into agricultural and livestock products, medicament thereof and prepared products
CN216831766U (en) Waste plastic offline impurity-removing system
CN112877322B (en) Perishable garbage biodegradation method based on microbial phase change
CN1524672A (en) Dissolution molding board made from urban domestic garbage and production process thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200616