RU2006142558A - SUSPENSION DEHYDRATION METHOD - Google Patents
SUSPENSION DEHYDRATION METHOD Download PDFInfo
- Publication number
- RU2006142558A RU2006142558A RU2006142558/15A RU2006142558A RU2006142558A RU 2006142558 A RU2006142558 A RU 2006142558A RU 2006142558/15 A RU2006142558/15 A RU 2006142558/15A RU 2006142558 A RU2006142558 A RU 2006142558A RU 2006142558 A RU2006142558 A RU 2006142558A
- Authority
- RU
- Russia
- Prior art keywords
- dehydration
- promoting agent
- agent comprises
- agent
- mixed
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
Abstract
1. Способ отвода жидкости из материала, содержащего органическое вещество, такое как шлам, полученный от станций очистки сточных вод, или шлам, полученный от целлюлозно-бумажных комбинатов, отличающийся тем, что агент, способствующий обезвоживанию, в форме твердых частиц во время сгущения добавляют в обезвоживающее устройство, содержащее подвижные детали,, такие как шнек, штифты или лопасти, и затем смешивают по существу с жидким материалом, после чего смесь передают на следующий этап обезвоживания, заключающийся в отжатии.2. Способ по п.1, отличающийся тем, что агент, способствующий обезвоживанию, содержит опилки.3. Способ по любому из пп.1 или 2, отличающийся тем, что агент, способствующий обезвоживанию, содержит синтетический материал, в частности, порошкообразный полиуретан.4. Способ по любому из пп.1 или 2, отличающийся тем, что агент, способствующий обезвоживанию, содержит перемолотую кору.5. Способ по любому из пп.1 или 2, отличающийся тем, что агент, способствующий обезвоживанию, содержит перемолотый торф.6. Способ по любому из пп.1 или 2, отличающийся тем, что агенты, способствующие обезвоживанию, могут быть свободно смешаны друг с другом.7. Способ по любому из пп.1 или 2, отличающийся тем, что массовая доля агента, способствующего обезвоживанию, составляет по меньшей мере 10% общей массы полностью обезвоженного шлама.1. A method of draining liquid from a material containing organic matter, such as sludge obtained from wastewater treatment plants, or sludge obtained from pulp and paper mills, characterized in that the dehydrating agent in the form of solid particles is added during thickening into a dewatering device containing moving parts, such as a screw, pins or blades, and then mixed with substantially liquid material, after which the mixture is transferred to the next stage of dewatering, which consists in squeezing. 2. The method according to claim 1, characterized in that the agent that promotes dehydration, contains sawdust. A method according to any one of claims 1 or 2, characterized in that the dehydration promoting agent comprises a synthetic material, in particular polyurethane powder. A method according to any one of claims 1 or 2, characterized in that the dehydration promoting agent comprises ground bark. A method according to any one of claims 1 or 2, characterized in that the dehydration promoting agent comprises ground peat. A method according to any one of claims 1 or 2, characterized in that the agents that promote dehydration can be freely mixed with each other. A method according to any one of claims 1 or 2, characterized in that the mass fraction of the dehydration promoting agent is at least 10% of the total weight of the completely dehydrated sludge.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0401234-0 | 2004-05-10 | ||
SE0401234A SE527884C2 (en) | 2004-05-10 | 2004-05-10 | Process for liquid expulsion from suspensions |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2006142558A true RU2006142558A (en) | 2008-06-20 |
Family
ID=32390935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2006142558/15A RU2006142558A (en) | 2004-05-10 | 2005-05-08 | SUSPENSION DEHYDRATION METHOD |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2007536084A (en) |
CN (1) | CN1980865A (en) |
RU (1) | RU2006142558A (en) |
SE (1) | SE527884C2 (en) |
WO (1) | WO2005108314A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012024888A1 (en) | 2012-12-19 | 2014-06-26 | Institut za okoljevarstvo in senzorje, d.o.o. | Method and device for dewatering waste sludge |
CN105384322A (en) * | 2015-07-02 | 2016-03-09 | 江苏鑫中恒水工业装备有限公司 | Sludge drying and sewage treatment method |
WO2017219131A1 (en) * | 2016-06-23 | 2017-12-28 | Fpinnovations | Enhancing dewatering of biosolid slurries using an acid and lignocellulosic materials |
CN109574446A (en) * | 2018-12-14 | 2019-04-05 | 上海交通大学 | A method of improving dewatering performance of sludge using ozone/coagulant/hydrophobic polyurethane |
SE2050328A1 (en) * | 2020-03-25 | 2021-04-27 | Valmet Oy | Method for utilizing sludges from wood pulping |
CN111499148B (en) * | 2020-05-13 | 2021-01-29 | 扬州纪扬机械设备有限公司 | Equipment for separating sludge and sewage |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2831384A1 (en) * | 1978-07-17 | 1980-01-31 | Weiss Geb Kg | FILTER TOOLS FOR TREATMENT OF SUSPENSIONS, ESPECIALLY COMMUNAL, INDUSTRIAL AND OTHER SLUDGE FOR THE FOLLOWING DRAINAGE |
JPS60147299A (en) * | 1984-01-09 | 1985-08-03 | Ebara Infilco Co Ltd | Sludge dehydration method and apparatus thereof |
SE523787C2 (en) * | 2002-01-23 | 2004-05-18 | Arne Lindahl | Process for draining liquid from difficult dewatered materials |
JP2018032707A (en) * | 2016-08-24 | 2018-03-01 | トヨタ自動車株式会社 | Rectangular wire for forming reactor coil |
-
2004
- 2004-05-10 SE SE0401234A patent/SE527884C2/en unknown
-
2005
- 2005-05-08 WO PCT/SE2005/000667 patent/WO2005108314A1/en active Application Filing
- 2005-05-08 RU RU2006142558/15A patent/RU2006142558A/en unknown
- 2005-05-08 JP JP2007513103A patent/JP2007536084A/en active Pending
- 2005-05-08 CN CNA2005800185276A patent/CN1980865A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2007536084A (en) | 2007-12-13 |
SE527884C2 (en) | 2006-07-04 |
SE0401234D0 (en) | 2004-05-10 |
WO2005108314A1 (en) | 2005-11-17 |
CN1980865A (en) | 2007-06-13 |
SE0401234L (en) | 2005-11-11 |
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