GB805526A - Method for clarifying water - Google Patents
Method for clarifying waterInfo
- Publication number
- GB805526A GB805526A GB35003/56A GB3500356A GB805526A GB 805526 A GB805526 A GB 805526A GB 35003/56 A GB35003/56 A GB 35003/56A GB 3500356 A GB3500356 A GB 3500356A GB 805526 A GB805526 A GB 805526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- added
- acrylamide polymer
- acrylamide
- polymer
- water
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Water is clarified by mixing with it a coagulant and an acrylamide polymer. The coagulant is chosen from ferrous sulphate, ferric chloride, chlorinated ferrous sulphate, sodium aluminate, aluminium sulphate and aluminium chloride. The acrylamide polymer may be polyacrylamide of a copolymer of acrylamide with up to 15 mole per cent. of other polymerizable substances such as acrylic and methacrylic acids and their alkyl esters, acrylonitrile, methacrylonitrile, methacrylamide, vinyl alkyl ethers, styrene, vinyl chloride and vivylidene chloride. The polymer or copolymer may contain free carboxyl groups, resulting from the copolymerization of acrylamide with acrylic acid, or from the partial hydrolysis of amide groups subsequent to polymerization. The coagulant and acrylamide polymer may each be added in the form of a powder or of an aqueous solution. Where the polymer is added in the form of a powder, it may first be mixed with an inert carrier such as diatomaceous earth, clay, pryrophillite or talc. The process may be applied to the removal of finely divided solids such as silt or clay from river or lake water. In examples (a) alum (with or without sodium silicate) and acrylamide polymer is added to river water, (b) ferric chloride and acrylamide polymer is added to river water, the pH of the water being adjusted to 6 by the addition of sodium hydroxide, (c) an aqueous effluent containing fine coal and clay in suspension, and obtained in the recovery of foundry sand by washing, is treated with aluminium sulphate and acrylamide polymer, and (d) ferric sulphate and acrylamide polymer is added to a brine obtained from a shale formation. Reference has been directed by the Comptroller to Specification 768,665.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US805526XA | 1955-12-05 | 1955-12-05 | |
US1168036XA | 1955-12-05 | 1955-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB805526A true GB805526A (en) | 1958-12-10 |
Family
ID=26763657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35003/56A Expired GB805526A (en) | 1955-12-05 | 1956-11-15 | Method for clarifying water |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1168036A (en) |
GB (1) | GB805526A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3523889A (en) * | 1968-11-26 | 1970-08-11 | American Sugar | Method and apparatus for separating liquids from solids |
US3642619A (en) * | 1970-08-31 | 1972-02-15 | Calgon Corp | Conditioning sewage waste sludges for dewatering |
US3655552A (en) * | 1971-02-16 | 1972-04-11 | Calgon Corp | Method for removing phosphate from waste water |
US4981599A (en) * | 1989-05-10 | 1991-01-01 | Tip Top Poultry, Inc. | Method of treating waste water |
EP0779246A1 (en) * | 1995-12-11 | 1997-06-18 | Torggler Chimica SpA | Precipitating agent for treating effluents |
EP1216209A1 (en) * | 1999-08-06 | 2002-06-26 | Trustees of Stevens Institute of Technology | An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1085522A (en) * | 1976-10-26 | 1980-09-09 | American Cyanamid Company | Process for clarifying raw water |
AU617290B3 (en) * | 1991-05-27 | 1991-10-04 | Hoefer, Dawn Annette | Process for removing silica from aqueous liquors |
CN105502567A (en) * | 2016-01-29 | 2016-04-20 | 张锐 | Oil stain and sewage treatment particles and preparation method thereof |
-
1956
- 1956-11-15 GB GB35003/56A patent/GB805526A/en not_active Expired
- 1956-12-03 FR FR1168036D patent/FR1168036A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3523889A (en) * | 1968-11-26 | 1970-08-11 | American Sugar | Method and apparatus for separating liquids from solids |
US3642619A (en) * | 1970-08-31 | 1972-02-15 | Calgon Corp | Conditioning sewage waste sludges for dewatering |
US3655552A (en) * | 1971-02-16 | 1972-04-11 | Calgon Corp | Method for removing phosphate from waste water |
US4981599A (en) * | 1989-05-10 | 1991-01-01 | Tip Top Poultry, Inc. | Method of treating waste water |
EP0779246A1 (en) * | 1995-12-11 | 1997-06-18 | Torggler Chimica SpA | Precipitating agent for treating effluents |
EP1216209A1 (en) * | 1999-08-06 | 2002-06-26 | Trustees of Stevens Institute of Technology | An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
EP1216209A4 (en) * | 1999-08-06 | 2004-04-21 | Trustees Stevens Inst Tech | An iron powder and sand filtration process for treatment of water contaminated with heavy metals and organic compounds |
Also Published As
Publication number | Publication date |
---|---|
FR1168036A (en) | 1958-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4569768A (en) | Flocculation of suspended solids from aqueous media | |
US3066095A (en) | Water purification agents and method of using same | |
Rabiee | Acrylamide‐based anionic polyelectrolytes and their applications: A survey | |
US3130167A (en) | Coagulating composition | |
US20190100448A1 (en) | Amphoteric polymer, process for production thereof, and use thereof, to treat aqueous dispersions | |
US3128249A (en) | Method for clarifying water | |
US4224149A (en) | Process useful in the flocculation of phosphate slimes | |
CA2946467C (en) | Method for treating suspensions of solid particles in water using comb like polymers | |
CA2895618C (en) | Method for treating suspensions of solid particles in water using post hydrolyzed polymers | |
GB805526A (en) | Method for clarifying water | |
US3397139A (en) | Waste treatment process | |
US3719748A (en) | Method for clarifying titanium sulphate solutions | |
GB2148938A (en) | Flocculation of coal particles | |
CA1176031A (en) | Process for alumina recovery | |
US5520820A (en) | Process for flocculating suspended solids | |
CA1273888A (en) | Flocculant for bitumen tailings | |
US3516932A (en) | Clarification of water | |
US2909508A (en) | Copolymers of acrylamide and vinyl aromatic sulfonates | |
GB1057334A (en) | Copolymers and use as flocculating agents | |
US2420340A (en) | Clarification of aqueous liquids | |
Zheng et al. | Research on preparation and application of dewatering agents for tailings water treatment | |
US3617572A (en) | Flocculation and settling of inorganic particles in a salt solution | |
GB761021A (en) | Separation of solids from aqueous suspension | |
US4693830A (en) | Flocculants for brine-containing systems | |
US3524811A (en) | Flocculating process |