WASTEWATER TREATMENT METHODS AND MEANS

Description

Background of the invention

[0001] The object of the invention is a method in a waste handling system, in which method waste or recyclable material is tansported in carrier bags, bags or sacks.

[0002] The object of the invention is also a combination of a waste handling system and closing means for closing, or securing the closing of, a bag, carrier bag or sack for use in the transport of wastes.

[0003] The invention relates generally to waste handling and more particularly to waste sorting.

[0004] Nowadays it is typical, e.g. in respect of household waste, that households use as waste bags different bags, sacks or carrier bags, in which waste is placed. For example, in Finland it is normal to use plastic carrier bags from shops, in which shopping has been carried home, as waste bags. Wastes are carried in plastic carrier bags to a waste bin, into which typically the bag, and its contents, closed with a knot is placed. The wastes are transported onwards by garbage truck for further processing. Correspondingly, pneumatic waste transport systems are known in the art, in which wastes are transported in waste bags from disposal points in transfer tubing for further processing. In both methods one drawback, among others, is that the sorting of wastes is awkward. It is often possible that users do not bother to sort wastes into different allotments, but instead mix all wastes in the same waste bag and waste bin. In this case mixed waste is produced, the reclamation of which is difficult.

[0005] Known in the art are solutions for sorting waste, in which solutions different types of waste are arranged to be transported in different containers, such as in waste bags or bins of different colors. For example, households place different types of wastes in waste bags of different colors. A waste bag of a specific color is specified for each type of waste. Wastes are transported e.g. in a normal garbage truck to a waste center, where the wastes are sorted into different allotments on the basis of the colors of the waste bags. The sorting of waste optically is described in publication EP0759816. A drawback here is that there must be waste bags separately arranged for the purpose for each waste type to be sorted. Another drawback is also the uncertainty of operation of the automatic optical sorting apparatus used in sorting the waste bags in a dirty environment. The sorting of waste is described in publication WO03039773 A1.

[0006] On the one hand, nothing guarantees that a waste producer, such as a household, will use a waste bag of the correct color for each type of waste. It is difficult to get misusers of the system to change their habits. On the other hand, identifying or tracing a misuser after the event is almost impossible. Documents JP 2004 175556A, WO2006 / 096101A1, and GB 2449710 disclose systems for using an RFID tags arranged in waste bags in waste management. GB 2449710 discloses a collection method for garbage bags. The bags have an RFID sticker adhered to them by means of adhesive. The RFID sticker comprises information about the type of refuse contained in the bag, as well as a visible identifier (color) according to the type of refuse. According to the method disclosed in this document, a reader carried by the collector of the refuse reads the RFID identifiers and collects only the relevant type of refuse, or collects all the refuse but in separate containers in accordance with the type of refuse. In both ways, refuse is collected in separate allotments. In this method, the collection is made by means of a collection vehicle such as a garbage a truck.

[0007] Furthermore, it is typical when using plastic carrier bags or plastic bags as waste bags that the knot made in the bag, e.g. from the carrying handles, opens, in which case the wastes can spread freely during transportation to outside the bag. This makes the transport vehicle, the waste bin and / or other waste bags dirty on the outside, hampering the sorting process and also forming a hygiene problem.

[0008] The aim of the invention is to achieve a new type of solution, by means of which the problems of prior art can be avoided.Brief description of the invention

[0009] The invention is based on a concept wherein a closing means, which is provided with an RFID identifier, is used for the closing of waste bags.

[0010] The method of the invention is disclosed in claim 1.

[0011] The method of the invention may also comprise the features of claims 2 - 12.

[0012] The combination of waste handling system and closing means of the invention is disclosed in claim 13.

[0013] The combination may also comprise the features of claims 14 to 22.

[0014] The solution according to the invention has a number of important advantages. By using the claimed closing means in the method or in the combination of the invention, it is ensured that, on the one hand, waste bags, waste carrier bags, waste sacks or corresponding stay closed in transportation, and also the operation of the system, such as more effective sorting than earlier, can be controlled by means of an RFID identifier. Arranging an RFID identifier in a closing means enables the use of any bag, carrier bag, sack, or corresponding whatsoever in waste transport and does not require separate transport containers specially intended for certain waste allotments. According to the invention, a reader of an RFID identifier is arranged

[0015] in connection with a waste bin or a waste disposal point, such as a waste room. In connection with a waste transport system, only one disposal point or waste bin can in this case be conveniently used for different materials, in which case waste is sorted into different allotments in the system later according to an RFID identifier. Also supplying waste material without an RFID identifier according to the invention into a disposal point of the system can also be prevented.

[0016] An RFID identifier can be used to register the amount of waste bought by a certain user, in which case invoicing principles can be changed. On the other hand, a user can be rewarded for sorting waste, e.g. by reducing the waste transport fee of waste that is fit for recycling.

[0017] According to a typical embodiment, the closing means is a closing sticker tape, which is e.g. an RFID sticker tape of the color fitted for each waste allotment, which sticker tape also comprises e.g. a text identifier according to the type of waste. In addition, an identification number or other identifier, which is separately specified according to each household, housing company, company other waste producer that produces waste, can be formed for a closing means and / or RFID identifier. A closing means can also comprise a picture or drawing of the waste type in connection with which the closing means in question is intended to be used.

[0018] The invention can thus be utilized by using the ordinary plastic carrier bags of a shop, which are closed with a closing means according to the invention. The carrier bag is filled with waste and closed by knotting its carrying loops. A typical way is to tie at first one knot, after which a closing means, preferably a sticker tape, is placed on top of the knot, and fixed over the knot of the carrier bag. After that a second knot can be made with the carrying loops. The RFID identifier in this case remains partly protected and avoids transport damage. The closing means according to the invention also prevents the opening of the knots of the waste bag.

[0019] In the waste sorting center to which the waste bags are transported conventionally with garbage trucks or in some other way, such as with a pneumatic waste transfer system, the waste bags are sorted into different waste allotments on the basis of the information given by the RFID identifiers. After this the waste bags are ripped open and the bags are removed from the rest of the waste. The RFID identifier of the closing means according to the invention can still be used as a verification by the aid of a reader means that the waste bags have been removed from the sorted waste allotments.

[0020] A dedicated closing means comprising an RFID identifier is arranged for each waste allotment. Recyclable paper, for instance, is handled in a corresponding manner. In this case paper, such as newspapers, is placed in a bag and it is closed with a closing means according to the invention, which closing means comprises an RFID identifier.

[0021] The closing means according to the invention can be supplied as a web comprising a number of closing means, e.g. arranged into a roll. This type of closing means roll preferably comprises a cutting point between each two consecutive closing means. Cutting the closing means can be facilitated by arranging perforation or corresponding in the roll to facilitate detaching a closing means from the roll. The closing means according to the invention can be supplied as sheet comprising a number of closing means. This type of closing means sheet comprises a cutting point between each adjacent closing means. A closing means sheet preferably comprises a base part, which protects the adhesive surface of the closing means. Perforation or corresponding is preferably formed in the base part to facilitate detaching a closing means from the sheet. Typically there is a cut between closing means, which extends to the base part from the surface of the closing means, but not through the base part. In this case the closing means are easy to detach from the closing means sheet (like e.g. sticking plaster).

[0022] By using closing means in the claimed method or combination, the operation of the waste transport system, such as of a pneumatic waste transport system, can be optimized more accurately than earlier. For example, the speed and quantity of the wastes transferred in the tubing can be measured more easily by means of the RFID identifiers of the closing means of the waste bags and by means of the RFID readers arranged in the transfer system. Likewise the transfer time from the waste disposal point to the waste station can be determined, in which case emptying of the next disposal point can be optimized.

[0023] Waste disposal points can be constructed so that they do not accept waste if the waste bag is not provided with a closing means comprising an RFID identifier.

[0024] An RFID identifier can also report the filling degree of a waste bin or of a waste disposal point. In this case the transportation of waste can be optimized. Transport is performed only if the filling degree is exceeded. This saves energy and reduces emissions. An RFID identifier can also report the contents of waste. If the waste contains a lot of something decomposable, a collection can be requested for the location within a set time. An RFID identifier can also give a temperature alarm, i.e. a fire alarm. An RFID identifier can also report when waste has been put into a waste bin and into which waste bin, in which case in which case information about waste quantities, types and trends is obtained.

[0025] Using a closing means in a pneumatic pipe transport system according to the invention has the advantage that a dedicated disposal point for different allotments is not needed, but instead all waste goes to the same disposal point. In normal waste transport waste containers of only a single type are needed, and only one garbage truck collects them instead of 3-4 trucks. It is also advantageous if all wastes, such as mixed waste, biowaste, glass waste, metal waste and paper waste, are placed into a bag. In this case the allotments and the tubing stay clean and their tube transportation is easier. The bag is automatically removed in a sorting center.

[0026] The invention can be applied according to one preferred embodiment so that dedicated closing means, which comprise RFID identifiers, are supplied to each household or other waste-producing community or corresponding. This assists sorting. In addition, by means of the combination of a closing means and RFID identifier according to the invention, it is easy to demonstrate where the costs of the waste handling system are generated. Fees can be allocated to waste producers more accurately than earlier.

[0027] According to one preferred embodiment, households have a fixed waste charge and receive a credit for each waste bag sorted in a sorting center. Based on the automatic reading of RFID identifiers, the system can allocate the sorted waste by means of an information system so that the credit goes to the correct target.

[0028] Sorting in a sorting center on the basis of an RFID identifier is very easy, as also is identification of a household. Arranging an RFID identifier in a closing means thus gives numerous opportunities in waste sorting.Brief description of the figures

[0029] In the following, the invention will be described in detail by the aid of some embodiments with reference to the attached drawings, wherein: Fig. 1 presents one embodiment of a closing for use in the method or in the combination according to the invention, in connection with a waste bag, Fig. 2 presents a detail of the closing means in connection with a waste bag, as viewed from a first direction, Fig. 3 presents a detail of the closing means in connection with a waste bag, as viewed from a second direction, Fig. 4 presents a closing means sheet as viewed from a first direction, Fig. 5 presents a closing means sheet as viewed from a second direction, Fig. 6 presents a detail of the detachment of a closing means from a closing means sheet, as viewed from a first direction, Fig. 7 presents a detail of the detachment of a closing means from a closing means sheet, as viewed from a second direction, Fig. 8 presents one embodiment of a closing means for use in the method or in the combination according to the invention. Fig. 9 presents one embodiment of a closing means sheet for use in the method or in the combination according to the invention, Fig. 10 presents some embodiments of some closing means for use in the method or in the combination according to the invention, Fig. 11 presents a picture series about the use of a closing means. Detailed description of the invention

[0030] Fig. 1 presents a waste bag 1, to which a closing means 2 is fixed, which closing means is provided with an RFID identifier 3. The closing means 2 is arranged in the embodiment of the figure over the knot 10 formed in the waste bag 1, in which case it prevents opening of the knot 10 during transportation. The knot 10 is formed e.g. by knotting the carrying loops 11 of the bag 1. The closing means 2 comprises an adhesive surface on the side that is against the outer surface of the bag 1, in which case it sticks to the outer surface of the bag.

[0031] The closing means in the case of Fig. 2 comprises a base part, onto which the RFID identifier 3 is arranged in a manner that is, in itself, known in the art. The base is preferably sticker laminate or corresponding, which can be fixed to the waste bag easily owing to the adhesive surface. Fig. 2 also presents a diagrammatic and simplified view of the parts of an RFID identifier. The RFID identifier comprises a memory part (chip) and an antenna part. The RFID identifier is preferably a passive RFID identifier, in which case it does not need its own power source.

[0032] Figs. 2 and 3 present in simplified form a situation in which a closing means according to the invention is placed in connection with a waste bag 1. The closing means 2 comprises an adhesive surface 205 protected by at least one base part 203, which base part is removed before fixing the closing means to a bag. According to Fig. 2 there are two base parts 203, in which case they can be removed from the overlaps 206 of the base part by pulling. The overlaps 206 are formed onto the base part 203 to facilitate removal of the base part. According to one embodiment (Fig. 7), a cut 204 is made in the base part, from where the base part divides into two parts,

[0033] According to Figs. 4 and 5, the closing means 2 are arranged into sheets 200, from which the closing means 2 are taken into use according to need, e.g. individually. According to Fig. 4, a cut 201 is formed between adjacent closing means, which cut separates the closing means from each other. The cut typically extends to the base part from the surface of the closing means, but not through the base part. Fig. 5 presents the closing means sheet of Fig. 4 from the side of the base part. According to one embodiment perforation 202 or corresponding is formed in the base part at the point of the cut that separates adjacent closing means. The closing means 2 is easy to detach from the closing means sheet 200 and base by tearing along the perforation 202. Figs. 6 and 7 present one of the closing means detached from a sheet 200.

[0034] According to Fig. 5, a cut 204 that is transverse with respect to the closing means can be formed in the base part 203, which cut extends through the base part but not through the actual closing means.

[0035] Fig. 8 presents one preferred embodiment of a closing means 2. In addition to an RFID identifier 3, the closing means 2 is also provided with other identifiers 21, 22, 23, 24, 25, 26. In the embodiment of the figure the closing means comprises a text marking 21, which expresses in words the type of waste for which the closing means in question is intended. The verbal marking 21 can be made in a number of different languages. A color code 22 is formed on the surface of the closing means 2, which color code can be a part of the area of the closing means or the size of the whole closing means. In addition, the closing means 2 can comprise a picture code or drawing code 23, which expresses the type of waste for which the closing means is intended. The closing means can comprise a customer code 24, which expresses the waste-producer community, such as a household, company or community. The customer code 24 is typically alphanumeric information. Furthermore, the closing means can comprise a barcode 25 or other visible graphical code. Furthermore, the closing means of waste groups intended for recycling can comprise a code descriptive of recycling. In addition, the closing means 2 can comprise the information or advertisements of a manufacturer or marketer. Furthermore, the closing means can comprise the name or other identifier of a local waste management company or community.

[0036] An RFID identifier can be arranged in a closing means in ways that are, in themselves, known in the art. The closing means can be fully according to the color fitted for each waste allotment or the color in question can be impressed or printed onto its surface. Correspondingly, other markings can be printed or otherwise formed on the closing means.

[0037] Fig. 9 presents a closing means sheet 200 of one type of waste, which closing means sheet comprises a number of closing means 2.

[0038] Fig. 10 presents some examples of different closing means 2a, 2b, 2c, 2d, 2e, 2f, 2g, which are intended for closing waste bags containing different types of waste. The embodiment in Fig. 10 presents a closing means 2a intended for mixed waste, a closing means 2b intended for metal, a closing means 2c intended for cardboard waste, a closing means 2d intended for biowaste, a closing means 2e intended for hazardous waste, a closing means 2f intended for paper, and a closing means 2g intended for glass. Also other waste materials can be marked with their own identifiers according to need.

[0039] Alternatively, the closing means 2 can be used as a conventional closer of the mouth part of a waste sack, by winding it tightly around the mouth part. If so desired, the mouth part can still be knotted or provided with an additional closer.

[0040] The combination of a closing means 2 and an RFID identifier 3 is utilized in connection with a waste transport system in accordance with the invention, e.g. as follows. Closing means according to the invention, i.e. combinations of a closing means and an RFID identifier, are distributed or otherwise delivered to households or other waste producers. Typically closing means sheets 200 are distributed, which sheets comprise closing means 2 for a certain waste allotment. The RFID identifier comprises the code or corresponding identifier of each waste producer, with which code a producer of waste can if necessary be identified. According to the invention the closing means 2 comprises an identification code, such as a color code, according to which the closing means is used in the system in the manner agreed in connection with each sorted waste bag. The color code can be the size of the whole closing means or a pattern or text. It is conceivable that a color code of a certain color is defined for mixed waste, a second color code for biowaste, correspondingly own color codes for recyclable materials. In this case users equip a waste bag comprising a certain type of waste with a closing means that comprises a corresponding color code.

[0041] In this way the waste bag wanted by the user can be used in connection with any different waste allotment whatsoever, and a waste producer marks a waste bag only with a color code of a closing means and RFID identifier according to the invention. Typically also an RFID identifier also already contains the waste type in connection with which it is used.

[0042] According to the invention, a reader of an RFID identifier can be in connection with a lid or a hatch of a waste bin or of a waste disposal point, which allows feeding only the waste intended for the waste bin or waste disposal point in question into the bin in question. Particularly in connection with a pneumatic waste transport system, only one disposal point can in this case be conveniently used for different materials, in which case the system sorts waste into different allotments later according to an RFID identifier. At the same time, supplying waste material without an RFID identifier according to the invention into a disposal point of the system can also be prevented.

[0043] An RFID identifier can be used to register the amount of waste bought by a certain user, in which case invoicing principles can be changed. On the other hand, a user can be rewarded for sorting waste, e.g. by reducing the waste transport fee of waste that is fit for recycling.

[0044] According to a typical embodiment, the closing means is a closing sticker tape, which is an RFID sticker tape of the color of the waste allotment, which sticker tape comprises e.g. a text identifier according to the type of waste. In addition, an identification number or other identifier, which is separately specified according to each household, housing company, company other waste producer that produces waste, can be formed for a closing means and / or RFID identifier.

[0045] The invention can thus be utilized by using the ordinary plastic carrier bags of a shop, which are closed with a closing means 2 according to the invention. The carrier bag is filled with waste and closed by knotting its carrying loops. A typical way is to tie at first one knot, after which a closing means, preferably a sticker tape, is placed on top of the knot, and fixed over the knot of the carrier bag. After that a second knot is made with the carrying loops. The RFID identifier in this case remains partly protected and avoids transport damage. The closing means according to the invention also prevents the opening of the knots of the waste bag. Fig. 11 further presents, for the sake of clarity, the use of a closing means in connection with a waste bag as a series of drawings. Fig 11 (a) contains an ordinary waste bag 1, comprising a knot 10 made with the carrying loops 11. In Fig. 11 (b) one closing means 2 is detached from the closing means sheet 200. In Fig. 11 (c) a closing means is placed onto a waste bag, preferably on top of the knot 10. Yet another knot can be made, if so desired, with the carrying loops on top of the closing means 2 as happens in Fig. 11 (d). After this the waste bag 1 is ready to be placed into a disposal point, such as into a waste bin, as happens in Fig. 11 (e).

[0046] In the waste sorting center to which the waste bags are transported conventionally with garbage trucks or with a pneumatic waste transfer system, the waste bags are sorted into different waste allotments on the basis of the information given by the RFID identifiers. After this the waste bags are ripped open and the bags are removed from the rest of the waste. The RFID identifier of the closing means according to the invention can still be used as a verification by the aid of a reader means that the waste bags have been removed from the sorted waste allotments.

[0047] A dedicated closing means comprising an RFID identifier is arranged for each waste allotment. Recyclable paper, for instance, is handled in a corresponding manner. In this case paper, such as newspapers, is placed in a bag and it is closed with a closing means according to the invention, which closing means comprises an RFID identifier.

[0048] The closing means to be used in the invention can be supplied as a web comprising a number of closing means, e.g. arranged into a roll. This type of closing means roll preferably comprises a cutting point between each two consecutive closing means. Cutting the closing means can be facilitated by arranging perforation or corresponding in the roll to facilitate detaching a closing means from the roll.

[0049] The operation of a pneumatic waste transport system can be optimized more accurately than earlier. For example, the speed and quantity of the wastes transferred in the tubing can be measured more easily by means of the RFID identifiers of the closing means of the waste bags and by means of the RFID readers arranged in the tubing or in the transfer system. Likewise the transfer time from the waste disposal point to the waste station can be determined, in which case emptying of the next disposal point can be optimized. For example, waste code X leaves from a disposal point A, which waste code is at point Y in the tubing, in which case the next waste disposal point B can be activated.

[0050] Waste disposal points can be constructed so that they do not accept waste if the waste bag is not provided with a closing means comprising an RFID identifier.

[0051] An RFID identifier can also report the filling degree of a waste bin or of a waste disposal point. In this case the transportation of waste can be optimized. Transport is performed only if the filling degree is exceeded. This saves energy and reduces emissions. An RFID identifier can also report the contents of waste. If the waste contains something decomposable, a collection can be requested for the location. An RFID identifier can also give a temperature alarm, i.e. a fire alarm. An RFID identifier can also report when waste has been put into a waste bin and into which waste bin, in which case in which case information about waste quantities, types and trends is obtained.

[0052] Using a closing means according to the invention in pneumatic pipe transport has the advantage that a dedicated disposal point for different allotments is not needed, but instead all waste goes to the same disposal point. In normal waste transport waste containers of only a single type are needed, and only one garbage truck collects them instead of 3-4 trucks. It is also advantageous if all wastes, such as mixed waste, biowaste, glass waste, metal waste and paper waste, are placed into a bag. In this case the allotments stay clean and their tube transportation is easier. The bag is automatically removed in a sorting center.

[0053] The invention can be applied according to one preferred embodiment so that dedicated closing means, which comprise RFID identifiers, are supplied to each household. This assists sorting. In addition, by means of the combination of a closing means and RFID identifier according to the invention, it is easy to demonstrate where the costs of the waste handling system are generated. Fees can be allocated to waste producers more accurately than earlier.

[0054] According to one preferred embodiment, households have a fixed waste charge and receive a credit for each waste bag sorted in a sorting center. Based on the automatic reading of RFID identifiers, the system can allocate the sorted waste by means of an information system so that the credit goes to the correct target.

[0055] Sorting on the basis of an RFID identifier in a sorting center is very easy, as also is identification of a household. An RFID identifier gives numerous opportunities in waste sorting.

[0056] The use of an RFID identifier in connection with a pneumatic waste transport system is described in publication WO 2005 / 118435. The use of an RFID identifier in the sorting of waste is presented in publication WO 2006 / 096101.

[0057] It is obvious to the person skilled in the art that the invention is not limited to the embodiments presented above, but that it can be varied within the scope of the claims presented below. The characteristic features possibly presented in the description in conjunction with other characteristic features can if necessary be used separately to each other, as long as it falls within the scope of the appended independent claims.

Claims

1. Method in a waste handling system, in which method waste or recyclable material is transported in carrier bags, bags or sacks (1), wherein a closing means (2) that is provided with an RFID identifier (3) including information on waste type given to the waste handling system, and configured to be used in closing, or securing the closing of, the carrier bag, bag or sack, is used in closing, or securing the closing of, the carrier bag, bag or sack used in the waste transport, and that the closing means (2) comprises an adhesive surface (205), with which the closing means can be fixed to the carrier bag, bag or sack (1), wherein the closing means (2) comprises at least one first visible identifier (21, 22, 23), which identifies the type of waste material or recyclable material contained in a bag, carrier bag or sack that the closing means (2) is intended to close, in the method wastes are sorted into different allotments on the basis of information given by RFID identifiers (3); and a reading unit of an RFID identifier is arranged in connection with a disposal point of the waste system, which reading unit is configured to control a waste transport system, or a part of it, on the basis of the information given by the RFID identifier, wherein the waste transport system is a pneumatic waste transport system or a system comprising a waste container and a collection truck.

2. Method according to claim 1, characterized in that the least one first visible identifier (21, 22, 23) is a pattern, color, code or marking, which identifies the type of waste material or recyclable material contained in the bag, carrier bag or sack that the closing means (2) is intended to close.

3. Method according to any of claims 1 - 2, characterized in that the closing means (2) comprises at least one second visible identifier (24, 25), such as a marking or code, which identifies the user community, such as a household.

4. Method according to any of claims 1 - 3, characterized in that a tape, which has an adhesive surface (205) on one side, is used as the closing means (2).

5. Method according to any of claims 1 - 4, characterized in that the closing means (2) comprises a base part (203), which protects the adhesive surface (204), and is removed before fixing the closing means is fixed to a carrier bag, bag or sack.

6. Method according to any of claims 1 - 5, characterized in that the speed and quantity of the wastes transferred in the tubing of a pneumatic waste transport system is measured by means of the RFID identifiers of the closing means of the waste bags and by means of RFID readers arranged in the transfer system.

7. Method according to any of claims 1 - 6, characterized in that an RFID identifier (3) of a closing means (2) is used to optimize the operation of the transport system by determining the transfer time from the waste disposal point to a waste station, in which case emptying of a next disposal point is optimized.

8. Method according to any of claims 1 - 7, characterized in that an RFID identifier (3) of a closing means (2) is used to optimize the transportation so that transport is performed only if the filling degree is exceeded or if the RFID identifier reports the contents of waste and the waste contains decomposable material, a collection is requested for the location within a set time.

9. Method according to any of claims 1 - 8, characterized in that in the method the closing means (2) is arranged into a sheet (200) or web, e.g. into a roll, comprising a number of closing means, from which sheet or web closing means are taken individually according to need.

10. Method according to any of claims 1 - 9, characterized in that a cut (201) is formed in a closing means sheet (200) between adjacent closing means (2), which cut extends from the surface to the surface of the base part (203).

11. Method according to any of claims 1 - 10 characterized in that perforation (202) is formed in the base part (203) in a closing means sheet (200) between essentially adjacent closing means (2), along which perforation the closing means (2) with base part can be detached from the sheet (200).

12. Method according to any of claims 1 - 11, characterized in that a cut (204) is formed in the base part (203) to facilitate removal of the base part (203) from the front of the adhesive surface when fixing the closing means.

13. A combination of a waste handling system and a closing means for closing, or securing the closing of, a bag, carrier bag or sack for use in the transport of wastes, wherein said closing means (2) comprises an RFID identifier (3) including information on waste type given to the waste handling system, and an adhesive surface (205), with which the closing means can be fixed to a countersurface, more particularly to said carrier bag, bag or sack, said closing means is configured to be used in in closing, or securing the closing of, the carrier bag, bag or sack, used in the transport of wastes, said the closing means (2) further comprises at least one first visible identifier (21, 22, 23), which identifies the type of waste material or recyclable material contained in said bag, carrier bag or sack that said closing means (2) is fitted to be used for closing, wherein wastes are configured to be sorted into different allotments on the basis of information given by RFID identifiers (3); and a reading unit of an RFID identifier is arranged in connection with a disposal point of the waste system, which reading unit is configured to control a waste transport system, or a part of it, on the basis of the information given by the RFID identifier, wherein the waste transport system is a pneumatic waste transport system or a system comprising a waste container and a collection truck.

14. The combination according to claim 13, characterized in that the least one first visible identifier (21, 22, 23)is a pattern, color, code or marking, which identifies the type of waste material or recyclable material contained in a bag, carrier bag or sack that the closing means (2) is fitted to be used for closing.

15. The combination according to claim 13 or 14, characterized in that the closing means (2) comprises at least one second visible identifier (24, 25), such as a marking or code, which identifies the user community, such as a household.

16. The combination according to any of claims 13 - 15, characteriz ed in that the closing means (2) comprises a tape, which has an adhesive surface on one side.

17. The combination according to any of claims 13 - 16, characteriz ed in that the closing means (2) are arranged into a sheet (200) or web, e.g. into a roll, comprising a number of closing means, from which sheet or web closing means (2) are taken according to need, e.g. individually.

18. The combination according to any of claims 13 - 17, characteriz ed in that the closing means (2) comprises a base part (203), which protects the adhesive surface (204), which base part is fitted to be removed before fixing the closing means.

19. The combination according to any of claims 13 - 18, characteriz ed in that a cut (201) is formed in a closing means sheet (200) between adjacent closing means (2), which cut extends from the surface to the surface of the base part (203).

20. The combination according to any of claims 13 - 19, characteriz ed in that perforation (202) is formed in the base part (203) in a closing means sheet (200) between essentially adjacent closing means (2), along which perforation the closing means (2) with base part (203) can be detached from the sheet (200).

21. The combination according to any of claims 13 - 20, characteriz ed in that a cut (204) is formed in the base part (203) to facilitate removal of the base part (203) from the front of the adhesive surface when fixing the closing means.

22. The combination according to any of claims 13 - 21, characteriz ed in that the closing means (2) comprises the name or other identifier of a local waste management company or society, such as a municipality.