GB2517121A - Composition, Apparatus and Method for Treating Waste Products - Google Patents

Composition, Apparatus and Method for Treating Waste Products Download PDF

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Publication number
GB2517121A
GB2517121A GB1307091.7A GB201307091A GB2517121A GB 2517121 A GB2517121 A GB 2517121A GB 201307091 A GB201307091 A GB 201307091A GB 2517121 A GB2517121 A GB 2517121A
Authority
GB
United Kingdom
Prior art keywords
waste product
salt composition
treatment
saps
receptacle
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.)
Withdrawn
Application number
GB1307091.7A
Other versions
GB201307091D0 (en
Inventor
Luke A C Shepherd
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.)
Haigh Engineering Co Ltd
Original Assignee
Haigh Engineering 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 Haigh Engineering Co Ltd filed Critical Haigh Engineering Co Ltd
Priority to GB1307091.7A priority Critical patent/GB2517121A/en
Publication of GB201307091D0 publication Critical patent/GB201307091D0/en
Publication of GB2517121A publication Critical patent/GB2517121A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Dispersion Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A method of treating waste super absorbant polymer gels (SAP) comprises the steps of processing the waste product and introducing a salt composition to the waste which can be done in any order or simultaneously. Preferred waste processing steps include macerating or washing, and preferably the composition comprises sodium chloride. Apparatus for carrying out the above method is also disclosed as is a dispenser for dispensing salt. The apparatus may comprise a receptacle for macerating or washing the SAP, and a dispenser (possibly a pump) for introducing salt, the salt may be introduced into the receptacle, or in a different embodiment into a pipe downstream which is prone to blockage.

Description

Composition, Apparatus and Method for Treating Waste Products The present invention concerns the treatment of waste products and more particularly waste products containing super absorbent polymer gels (SAPs).
In this connection, SAPs are extensively used in urine bottles, adult nappies, children's nappies, sanitary towels and other healthcare products. They take the form of an embedded compound, pre-measured sachets or are added by hand from a tub of the compound to absorb human waste, urine, blood and other bodily fluids to prevent spills or unwanted leakage.
Products containing SAPs are often disposed of via machines such as macerators or washers where the gel can cause blockages. An object of the present invention is to alleviate the problem of such blockages.
According to the present invention there is provided apparatus for treating super absorbent polymer gels (SAPs), the apparatus comprising:-a treatment receptacle for receiving waste product; and dispensing means for introducing a salt composition to said waste product. It has been found that such a salt composition is highly effective in breaking down SAPs in the waste product.
Preferably, said dispensing means is arranged to introduce said salt composition into said treatment receptacle. In this way, the salt composition can be introduced so that is mixed into the waste product during a treatment cycle. Alternatively, the apparatus may comprise a holding receptacle, the dispensing means being arranged to introduce said salt composition into the holding receptacle for holding waste product that has undergone treatment in said treatment receptacle.
Conveniently, said dispensing means comprises a pump which can inject the salt composition to where Ut is required. Such a pump can be provided integrally within, for example, macerator apparatus or washing apparatus, In this regard, the treatment receptacle preferably comprises macerating blades for carrying out a macerating treatment. As such, the apparatus takes the form of a macerator having the additional SAPs treatment feature. Alternatively, the treatment receptacle may comprise the washing compartment of a washer, such as a bedpan washer. Such washers can be used to clean, for example, urine bottles and the like, where SAPs related blockages can present problems.
According to a further aspect of the present invention there is provided a method for treating super absorbent polymer gels (SAPs) contained in a waste product, the method comprising the steps of:-processing said waste product containing SAPs; and introducing a salt composition to said waste product.
Preferably, said processing comprises macerating said waste product. Alternatively, the processing may comprise washing said waste product.
The salt composition can be introduced before or during said processing of said waste product, or alternatively, the salt composition is introduced after said processing, when the processed waste product is held in a holding receptacle.
Preferably, said processed waste product is agitated by means of mechanical stirring. Additionally or alternatively, said processed waste product can be agitated by means of air bubbles produced from a perforated membrane connected to an air pump.
According to a further aspect of the present invention there is provided a dispensing means for introducing a salt composition to waste product containing super-absorbent polymer gels (SAPs), the dispensing means being coupled to a locality prone to SAPs blockages.
Preferably, the locality is one or more of a waste drainage system, and a domestic and/or commercial waste treatment apparatus.
According to a yet further aspect of the present invention there is provided use of a salt composition for the treatment of super absorbent polymer gels (SAPs), the composition comprising sodium chloride.
The salt composition can be provided in powder, tablet or liquid form, according to the application requirements.
Embodiments of the present invention wilt now be described by way of example and with reference to the Figure 1.
In this respect, Figure 1 shows a perspective view of a macerator 1 in accordance with the present invention. The macerator has blades (not shown) within a main processing compartment 2 for breaking up waste introduced via a lid 3.
A dispenser in the form of an pump 4 is used to inject a salt solution, into the macerator main compartment 2 in order to assist in the breaking down of any SAPs included in the waste.
In this connection following analysis and experimentation, it has been found that salt (sodium chloride) either added as a solid or solution, has proved to be effective at breaking the solidified polymer of the SAPs into a less viscous fluid.
The salt compound can be introduced directly into the macerator disposal machine before, during or after the disposal cycle, or added into the output drainage of the machine as a solid in solution, which significantly improves the flow of the effluent and prevents SAP build-up or blockage.
The principle can be extended to washers that clean urine bottles and the like, as well as standalone dispenser systems for drainage systems where blockages may occur due to other gel sources.
The apparatus can take the form of an add on' piece of equipment to neutralise the SAP compound after the gel has been processed by the existing products already in the market place or as an additional feature integrated into new machines.
Agitating the processed waste product by means of mechanical stirring or by air bubbles from a perforated membrane connected to a suitable air pump can assist the break down process.
The apparatus can take the form of a dispenser within the disposers to neutralise the gel as the disposal process takes place.
The present invention further encompasses different delivery forms of the composition, for example a tablet, a powder or liquid. Any of these can be inserted with the SAPS gel products which are put into disposal machines.

Claims (20)

  1. Claims: 1. Apparatus for treating super absorbent polymer gels (SAPs), the apparatus comprising:-a treatment receptacle for receiving waste product; and dispensing means for introducing a salt composition to said waste product.
  2. 2. Apparatus as claimed in claim 1, wherein said dispensing means is arranged to introduce said salt composition into said treatment receptacle.
  3. 3. Apparatus as claimed in claim 1, wherein said apparatus further comprises a holding receptacle, the dispensing means being arranged to introduce said salt composition into the holding receptacle for holding waste product that has undergone treatment in said treatment receptacle.
  4. 4. Apparatus as claimed in any preceding claim, wherein said dispensing means comprises a pump.
  5. Apparatus as claimed in any preceding claim, wherein the treatment receptacle comprises macerating blades for carrying out a macerating treatment.
  6. 6. Apparatus as claimed in any one of claims 1 to 4, wherein the treatment receptacle comprises a compartment of a washer for carrying out a washing treatment.
  7. 7. A method for treating super absorbent polymer gels (SAPs) contained in a waste product, the method comprising the steps of:-processing said waste product containing SAPs; and introducing a salt composition to said waste product.
  8. 8. A method as claimed in claim 7, wherein said processing comprises macerating said waste product.
  9. 9. A method as claimed in claim 7, wherein said processing comprises washing said waste product.
  10. 10. A method as claimed in any one of claims 7 to 9, wherein the salt composition is introduced before said processing of said waste product.
  11. 11. A method as claimed in any one of claims 7 to 9, wherein the salt composition is introduced during said processing of said waste product.
  12. 12. A method as claimed in any one of claims 7 to 9, wherein the salt composition is introduced after said processing, when the processed waste product is held in a holding receptacle.
  13. 13. A method as claimed in any one of claims 7 to 12, wherein said processed waste product is agitated by means of mechanical stirring.
  14. 14. A method as claimed in any one of claims 7 to 12, wherein said processed waste product is agitated by means of air bubbles produced from a perforated membrane connected to an air pump.
  15. 15. A dispensing means for introducing a salt composition to waste product containing super-absorbent polymer gels (SAPs), the dispensing means being coupled to a locality prone to SAPs blockages.
  16. 16. A dispensing means as claimed in claim 15, wherein the locality is one or more of a waste drainage system, and a domestic and/or commercial waste treatment apparatus.
  17. 17. Use of a salt composition for the treatment of super absorbent polymer gels (SAPs), the composition comprising sodium chloride.
  18. 18. A salt composition as claimed in, or for use in, any preceding claim, wherein the salt composition is provided in powder, tablet or liquid form.
  19. 19. Apparatus substantially as hereinbefore described with reference to the accompanying drawing.
  20. 20. A method substantially as hereinbefore described with reference to the accompanying drawing.
GB1307091.7A 2013-04-19 2013-04-19 Composition, Apparatus and Method for Treating Waste Products Withdrawn GB2517121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1307091.7A GB2517121A (en) 2013-04-19 2013-04-19 Composition, Apparatus and Method for Treating Waste Products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1307091.7A GB2517121A (en) 2013-04-19 2013-04-19 Composition, Apparatus and Method for Treating Waste Products

Publications (2)

Publication Number Publication Date
GB201307091D0 GB201307091D0 (en) 2013-05-29
GB2517121A true GB2517121A (en) 2015-02-18

Family

ID=48537482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1307091.7A Withdrawn GB2517121A (en) 2013-04-19 2013-04-19 Composition, Apparatus and Method for Treating Waste Products

Country Status (1)

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GB (1) GB2517121A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007314738A (en) * 2006-05-23 2007-12-06 Toshimi Onodera Method for treating waste
US20080034493A1 (en) * 2006-08-11 2008-02-14 Soo Kyoung Park Method and compositions for bath

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007314738A (en) * 2006-05-23 2007-12-06 Toshimi Onodera Method for treating waste
US20080034493A1 (en) * 2006-08-11 2008-02-14 Soo Kyoung Park Method and compositions for bath

Also Published As

Publication number Publication date
GB201307091D0 (en) 2013-05-29

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