# US 2014/0190882 A1 · Fluid Cleaning Medium and a Fluid Cleaning Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190882 A1 - Document ID: US20140190882A1 - Status: Published application - Kind: A1 - Application number: 14/234,771 - Filed: 2012-07-26 - Published: 2014-07-10 - Earliest claimed: 2011-07-27 - Inventors: Anthony John Yellen - Web page: https://patentgrep.com/patent/US20140190882A1 ## CPC - C02F 1/006: {Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks (for settling tanks B01D21/24)} - B01J 19/30: Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer - C02F 1/32: with ultraviolet light - C02F 3/06: using submerged filters - C02F 3/087: {Floating beds with contact bodies having a lower density than water} - C02F 3/109: {Characterized by the shape (C02F3/104 takes precedence)} - C02F 3/121: {Multistep treatment} - C02F 3/20: using diffusers - C02F 3/303: {characterised by the nitrification} - B01J 2219/30207: Sphere - B01J 2219/30466: Plastics - C02F 2303/16: Regeneration of sorbents, filters - Y02W 10/10: Biological treatment of water, waste water, or sewage - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract A fluid cleaning device is disclosed for cleaning pond water and the like. The device comprises a flow path for conveying a fluid flow between a device inlet and a device outlet, the path comprising a cleaning chamber having an inlet for receiving fluid into the chamber and an outlet for passing fluid from the chamber. The chamber comprises a cleaning medium which is arranged to clean the fluid as it passes along the path between the chamber inlet and the chamber outlet. The medium comprises a plurality of discrete cleaning units which separately comprise a body having a surface comprising a plurality of protuberances disposed thereon, which are arranged to maintain a separation of the body surfaces of adjacent units of the medium to enable fluid to pass between the units. The device further comprises dispersing means disposed within the duct upstream of the cleaning chamber for dispersing the fluid flow across the cleaning medium to encourage the interaction of the water with the cleaning medium. ## Claims ### Claim 1 A fluid cleaning medium, the medium comprising a plurality of discrete cleaning units, each unit comprising a body having a surface comprising a plurality of protuberances disposed thereon which are arranged to maintain a separation of the body surfaces of adjacent units of the medium to enable fluid to pass between the units. ### Claim 2 (depends on 1) The medium according to claim 1, wherein the protuberances are angularly separated around the body of the respective units. ### Claim 3 (depends on 1) The medium according to claim 1, wherein the protuberances associated with each unit are separately arranged to extend in a common plane. ### Claim 4 (depends on 1) The medium according to claim 1, wherein the body comprises a substantially spherical shape and the protuberances extend substantially radially away from the surface of the body. ### Claim 5 (depends on 1) The medium according to claim 1, wherein the units further comprise at least one passageway which extends through the respective body. ### Claim 6 (depends on 5) The medium according to claim 5, wherein the at least one passageway enables the fluid to flow therethrough to increase the surface area of the cleaning units for the colonisation of bacteria. ### Claim 7 (depends on 5) The medium according to claim 5, wherein the or at least one passageway associated with each unit comprise a cross-sectional area which varies along the length of the passageway. ### Claim 8 (depends on 5) The medium according to claim 5, wherein the at least one passageway extends in a direction which is substantially transverse the plane in which the protuberances extend. ### Claim 9 (canceled) ### Claim 10 (canceled) ### Claim 11 The fluid cleaning device, the device comprising a flow path for conveying a fluid flow between a device inlet and a device outlet, the path comprising a cleaning chamber having an inlet for receiving fluid into the chamber and an outlet for passing fluid from the chamber, the chamber comprising a cleaning medium which is arranged to clean the fluid as it passes along the path between the chamber inlet and the chamber outlet, the device further comprising dispersing means disposed within the path upstream of the cleaning chamber for dispersing the fluid flow across the cleaning medium to encourage the interaction of the water with the cleaning medium. ### Claim 12 (depends on 11) The device according to claim 11, wherein the dispersing means is disposed within the inlet to the chamber and comprises a mesh or an apertured plate which is arranged to extend across the inlet. ### Claim 13 (depends on 11) The device according to claim 11, wherein the cleaning medium is housed within the chamber between the first mesh or apertured plate disposed upstream of the fluid flow and a second mesh or apertured plate disposed downstream of the fluid flow. ### Claim 14 (depends on 13) The device according to claim 13, wherein the second plate is disposed upstream of the chamber outlet and is arranged to minimise a directional flow of fluid from the medium to the outlet of the chamber. ### Claim 15 (depends on 13) The device according to claim 13, wherein the first and second plates of the chamber are held separated, in a fixed configuration, such that the cleaning medium is free to move between the plates. ### Claim 16 (depends on 13) The device according to claim 13, wherein the separation of the first and second plates of the chamber is variable, between a first configuration in which the cleaning medium is mobile and a second configuration in which the cleaning medium is substantially immobile. ### Claim 17 (depends on 14) The device according to claim 14, wherein the cleaning medium comprises a compacted configuration in the second plate configuration, which helps minimise any detritus removed from the fluid, from escaping the medium. ### Claim 18 (depends on 11) The device according to claim 11, comprising a first and second cleaning chamber disposed within the flow path, the second cleaning chamber being arranged downstream of the first cleaning chamber. ### Claim 19 (depends on 18) The device according to claim 18, wherein the first and second cleaning chambers separately comprise a cleaning medium and a first and second mesh or apertured plate, the cleaning medium being disposed within the chambers between the respective first and second plates. ### Claim 20 (depends on 19) The device according to claim 19, wherein the first and second plate of the first chamber are held separated in a fix configuration, such that the cleaning medium is free to move between the plates, and the separation of the first and second plates of the second chamber is variable between a first configuration in which the cleaning medium is mobile and a second configuration in which the cleaning medium is substantially immobile. ### Claim 21 (canceled) ### Claim 22 (canceled) ### Claim 23 (canceled) ### Claim 24 (canceled) ### Claim 25 (canceled) ### Claim 26 (canceled) ### Claim 27 (canceled) ### Claim 28 (canceled) ### Claim 29 (canceled) ### Claim 30 (depends on 11) The device according to claim 11, wherein the cleaning medium comprises a fluid cleaning medium.