# US 2019/0375663 A1 · Combined dehydration device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0375663 A1 - Document ID: US20190375663A1 - Status: Published application - Kind: A1 - Application number: 16/325,817 - Filed: 2017-08-16 - Published: 2019-12-12 - Earliest claimed: 2016-08-17 - Assignees: Able Corporation - Applicants: Able Co., Ltd. - Inventors: Toshiki YOSHIMURA; Takeshi OKADA; Keisuke UCHIMURA; Shu Ting ZHANG - Web page: https://patentgrep.com/patent/US20190375663A1 ## CPC - B01D 33/04: with filtering bands or the like supported on cylinders which are impervious for filtering - B01D 21/01: using flocculating agents (for purifying water C02F1/52; for liquid radioactive waste G21F9/10) - B01D 33/463: {nozzles} - B01D 35/06: Filters making use of electricity or magnetism (ultrafiltration, microfiltration B01D61/14; electrodialysis, electro-osmosis B01D61/42; devices comprising filters and magnetic separators B03C1/30) - B01D 61/18: Apparatus therefor - B01D 61/427: {Electro-osmosis} - B01D 61/463: {comprising the membrane sequence AC or CA, where C is a cation exchange membrane} - B01D 61/58: Multistep processes - B01D 63/16: Rotary, reciprocated or vibrated modules - C02F 9/00: Multistage treatment of water, waste water or sewage - C02F 11/121: by mechanical de-watering - C02F 11/123: using belt or band filters - C02F 11/15: by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves (for the purpose of heating C02F11/131) - B01D 61/14: Ultrafiltration; Microfiltration - B01D 2315/02: Rotation or turning - B01D 2317/08: Use of membrane modules of different kinds - C02F 11/006: {Electrochemical treatment, e.g. electro-oxidation or electro-osmosis} - C02F 11/143: using inorganic substances (C02F11/148 takes precedence) - C02F 11/147: using organic substances (C02F11/148 takes precedence) - C02F 2303/16: Regeneration of sorbents, filters - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - 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) ## Abstract This combined dehydration device continuously supplies primarily dehydrated sludge to a sludge supply part, the combined dehydration device including: a multiple rotary disk-type solid-liquid separation device and an electroosmosis dehydration device. In the multiple rotary disk-type solid-liquid separation device, a plurality of rotary shafts in which a plurality of rotary disks are fitted and mounted are arranged from the upstream side toward the downstream side and pivotally supported; while the rotary disks are rotated, water to be treated including sludge is supplied from over the rotary disks at the upstream side and is subjected to a primary dehydration treatment; and first dehydrated sludge on the rotary disks is fed and discharged from a sludge discharge part located at the most downstream portion of the rotary disks. In the electroosmosis dehydration device, a sludge supply part is provided at the upstream side of an endless filtration fabric spread between rollers. ## Claims ### Claim 1 A combined dehydration device comprising a multiple rotary disk-type solid-liquid separation device and an electroosmosis dehydration device, the multiple rotary disk-type solid-liquid separation device having: a plurality of rotary shafts, which are fitted in a plurality of rotary disks, disposed from an upstream side toward a downstream side and pivotally supported; the rotary disks rotating to release a moisture through a gap between the rotary disks to perform a primary dehydration treatment from a sludge water to be supplied onto the rotary disks; and a sludge discharge part located at a most downstream portion of the rotary disks to discharge a primarily dehydrated sludge, which is obtained by the primary dehydration treatment and conveyed from the upstream side to a downstream side of the rotary disks, the electroosmosis dehydration device having: a sludge supply part provided at an upstream side of an endless filtration fabric spread between rollers; and an anode plate and a cathode plate interposing a downstream side of the endless filtration fabric for pressing the primarily dehydrated sludge on the endless filtration fabric to perform a secondary dehydration treatment while a voltage is applied across the anode and the cathode, wherein the primarily dehydrated sludge discharged from the sludge discharge part is continuously supplied to the sludge supply part of the electroosmosis dehydration device. ### Claim 2 (depends on 1) The combined dehydration device according to claim 1, wherein a lower end of the sludge discharge part and the sludge supply part are provided at the same horizontal level. ### Claim 3 (depends on 1) The combined dehydration device according to claim 1, wherein a shower nozzle to wash the primarily dehydrated sludge on the rotary disks is provided above the rotary disks. ### Claim 4 (depends on 2) The combined dehydration device according to claim 2, wherein a shower nozzle to wash the primarily dehydrated sludge on the rotary disks is provided above the rotary disks.