JPS5645794A - Solid-liquid separation method of suspension - Google Patents
Solid-liquid separation method of suspensionInfo
- Publication number
- JPS5645794A JPS5645794A JP12014879A JP12014879A JPS5645794A JP S5645794 A JPS5645794 A JP S5645794A JP 12014879 A JP12014879 A JP 12014879A JP 12014879 A JP12014879 A JP 12014879A JP S5645794 A JPS5645794 A JP S5645794A
- Authority
- JP
- Japan
- Prior art keywords
- flocculating agent
- electrolyte
- suspension
- solid
- anionic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
PURPOSE: To make a monovalent electrolyte develop a good dehydrating property at least equal to that of a multivalent electrolyte, by a method wherein, in subjecting a suspension generated in a paper-making factory or the like to a solid-liquid separation treatment, an anionic org. high-molecular flocculating agent is added and mixed under a specific pH condition and, thereafter, the monovalent electrolyte is added.
CONSTITUTION: Examples of suspension is waste water, or a sludge and is treated under a condition with pH of 4W10. An anionic org. high-molecular flocculating agent is one with MW of 5 million or more and has a carbamoyl group as well as 5mol% or more of an anionic functional group against total functional groups and an acrylamide type flocculating agent is representative and may contain a copolymer with acrylonitrile, methacrylamide, styrene, acrylate or methacrylate. The amount to be used thereof is in a range of 0.02W5wt% on the basis of solid contents, pref., 0.1W1.0wt%. As a monovalent electrolyte, a hydrochloric acid salt, a sulfate, a phosphate, a carbonate or a nitrate are mentioned and the adding amount thereof is in a range of about 0.1W100 times wt. of the amount of the polymer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12014879A JPS5645794A (en) | 1979-09-20 | 1979-09-20 | Solid-liquid separation method of suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12014879A JPS5645794A (en) | 1979-09-20 | 1979-09-20 | Solid-liquid separation method of suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5645794A true JPS5645794A (en) | 1981-04-25 |
Family
ID=14779143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12014879A Pending JPS5645794A (en) | 1979-09-20 | 1979-09-20 | Solid-liquid separation method of suspension |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5645794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795564A (en) * | 1986-06-24 | 1989-01-03 | Magyar Szenhidrogenipari Kutato-Fejleszto Intezet | Process for improving the sedimentation and filtering properties of waste waters containing clay minerals |
| CN102745789A (en) * | 2012-07-27 | 2012-10-24 | 安洁士石油技术(上海)有限公司 | Salt resistant biochemical functional type flocculating agent used for oil field waste water and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118913A (en) * | 1974-08-09 | 1976-02-14 | Nippon Steel Corp | Teionjinseito netsukankakoseinosugureta oosutenaitoko |
-
1979
- 1979-09-20 JP JP12014879A patent/JPS5645794A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118913A (en) * | 1974-08-09 | 1976-02-14 | Nippon Steel Corp | Teionjinseito netsukankakoseinosugureta oosutenaitoko |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795564A (en) * | 1986-06-24 | 1989-01-03 | Magyar Szenhidrogenipari Kutato-Fejleszto Intezet | Process for improving the sedimentation and filtering properties of waste waters containing clay minerals |
| CN102745789A (en) * | 2012-07-27 | 2012-10-24 | 安洁士石油技术(上海)有限公司 | Salt resistant biochemical functional type flocculating agent used for oil field waste water and preparation method thereof |
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