Filter element, method of producing a filter element, filtration device and liquid treatment system
A filter element comprises a porous body. The porous body is made of bonded matter, including: at least one material for binding lead; and at least a binder having a Melt Flow Rate, MFR, of more than 1 g/10 min. The porous body has a Mean Flow Pore size, MFP, in a range of between 0.1 and 11 μm.
1. A filter element, comprising:
a porous body,
wherein the porous body is made of bonded matter, including:
at least one material for binding lead; and
at least one binder having a Melt Flow Rate, MFR, of at least 2 g/10 min,
wherein the porous body has a Mean Flow Pore size, MFP, in a range between 0.1 and 11 μm.
2. The filter element according to claim 1 , wherein the MFP is between 0.1 and 11 μm.
3. The filter element according to claim 1 , wherein the bonded matter includes a further material, wherein the further material comprises particles having a mean particle size D 50 of between 60 μm and 250 μm.
4. The filter element according to claim 3 , wherein the further material is present in the porous body in a proportion of between 25% and 94% by weight of the total of the bonded matter.
5. The filter element according to claim 3 , wherein the further material comprises activated carbon.
6. The filter element according to claim 1 , wherein the binder has a mean particle size D 50 between 50 μm and 120 μm.
7. The filter element according to claim 1 , wherein the binder is present in the porous body in a proportion of less than 20% by weight of the total bonded matter.
8. The filter element according to claim 1 , wherein the binder has an average molecular weight of between 2*10 5 g/mol and 5*10 5 g/mol.
9. The filter element according to claim 1 , wherein the binder has a Vicat softening point of at most 90° C.
10. The filter element according to claim 1 , wherein the material for binding lead comprises at least one of an ion exchange material in the form of a zeolite and a metal oxide.
11. The filter element according to claim 1 , wherein the material for binding lead comprises a granular material having a mean particle size of between 5 μm and 50 μm.
12. The filter element according to claim 1 , wherein the material for binding lead is present in the porous body in a proportion of between 1% and 25% by weight of the total bonded matter.
13. A filtration device, including at least one filter element according to claim 1 .
14. The filtration device according to claim 12 , wherein the filtration device is a replaceable liquid treatment cartridge for a gravity-driven liquid treatment system.
15. The filtration device according to claim 12 , wherein the filtration device further includes a cartridge housing made of liquid-impermeable material and having at least one inlet and at least one outlet,
wherein a chamber is formed in the cartridge housing,
wherein loose matter forming a liquid treatment medium is housed in the chamber, and
wherein at least one of the at least one filter elements is comprised in one of a liquid inlet and a liquid outlet of the replaceable liquid treatment cartridge.
16. A liquid treatment system including a replaceable liquid treatment device comprising at least one filter element according to claim 1 .
17. The liquid treatment system according to claim 16 , wherein the liquid treatment device is replaceable.
18. The liquid treatment system according to claim 16 , further comprising a container for holding liquid to be treated, wherein the liquid treatment device is held in a flow path from the container to an outlet for dispensing filtered liquid into a vessel.
19. The liquid treatment system according to claim 16 , wherein the liquid treatment system comprises a drinking bottle having a mouthpiece, and wherein the filter element is arranged between an interior of the drinking bottle and the mouthpiece.