GB816399A - Improvements in the agglomeration of suspended particles in aqueous media - Google Patents
Improvements in the agglomeration of suspended particles in aqueous mediaInfo
- Publication number
- GB816399A GB816399A GB11294/56A GB1129456A GB816399A GB 816399 A GB816399 A GB 816399A GB 11294/56 A GB11294/56 A GB 11294/56A GB 1129456 A GB1129456 A GB 1129456A GB 816399 A GB816399 A GB 816399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wastes
- alkyl
- chloride
- waste
- acrylic
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
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)
- Treatment Of Sludge (AREA)
Abstract
A method of improving the agglomeration of suspended particles in aqueous waste media having a biochemical oxygen demand such as organic wastes, comprises adding an inorganic coagulant and one or more synthetic polymeric water-soluble polyelectrolytes having an average molecular weight of at least 10,000 and having a structure derived by the substantially linear ploymerization of at least one monoolefinic compound through the aliphatic unsaturated group. The ployelectrolytes may be homopolymers of acrylic or methacrylic acid or their derivatives such as the alkali metal and ammonium salts of acrylic acid or of methacrylic acid, acrylamide, methacrylamide, the N-alkyl substituted amides, the N-aminoalkylamides and the corresponding N-alkylaminoalkyl substituted amides, the aminoalkyl acrylates, the aminoalkyl methacrylamides and the N-alkyl substituted aminoalkyl esters of either acrylic or methacrylic acids, or copolymers thereof with copolymerizing monomers such as ethylene, propylene, isobutylene, styrene, a -methylstyrene, vinyl acetate, vinyl formate, alkyl ethers, acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride, the alkyl acrylates, the alkyl methacrylates, the alkyl maleates and the alkyl fumarates. The polyelectrolytes may be used in amounts from 0,1 to 1,000 parts per million, preferably from 0,5 to 5 parts for dilute wastes and from 3 to 240 parts for concentrated sludges. The inorganic coagulant may be alum, hydrated lime, a ferrous salt, a ferric salt, aluminium sulphate, calcium carbonate or chloride, or zinc chloride, and may be added first. The invention is exemplified with municipal sewage, activated sludge, Guggenheim process sludge (where the coagulant, ferric chloride, is added in the Guggenheim treatment), mixed domestic sewage and industrial waste, textile wastes from the finishing of synthetic fibres, beet sugar processing waste, tannery effluent, cotton mill wastes, tannery-wastes (treated with 7 lbs. lime per 1,000 gallons prior to the present treatment), laundry waste, starch wastes from wool felt processing, paper de-inking wastes, raw sewage sludge containing industrial wastes, and digested sewage sludge. The invention may be applied also to oil wastes, stillage, milk, dairy, rubber plant, cornstarch, meat packing and slaughterhouse wastes and fermentation residues. Reference has been directed by the Comptroller to Specifications 768,662 and 768,665.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US816399XA | 1955-04-20 | 1955-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB816399A true GB816399A (en) | 1959-07-15 |
Family
ID=22165421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11294/56A Expired GB816399A (en) | 1955-04-20 | 1956-04-13 | Improvements in the agglomeration of suspended particles in aqueous media |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB816399A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3442799A (en) * | 1966-08-04 | 1969-05-06 | Rohm & Haas | Clarification of raw sewage using hydrolyzed copolymers of polymerizable acrylic and vinyl compounds |
US3506570A (en) * | 1968-05-08 | 1970-04-14 | Dow Chemical Co | Clarification of and phosphate removal from sewage |
US4013555A (en) * | 1976-03-24 | 1977-03-22 | Nalco Chemical Company | Process for reducing BOD in food processing plant wastes |
US4028238A (en) * | 1975-11-03 | 1977-06-07 | Dart Industries Inc. | Treatment of municipal waste sludges |
US4849128A (en) * | 1981-03-24 | 1989-07-18 | Blue Circle Industries Limited | Process and composition for conditioning an aqueous system |
US5531907A (en) * | 1993-11-25 | 1996-07-02 | Nalco Limited | Treatment of agricultural waste |
US5562829A (en) * | 1994-06-09 | 1996-10-08 | Agricultural Research Institute Of Ontario | Process for clarifying milkhouse wastewater |
-
1956
- 1956-04-13 GB GB11294/56A patent/GB816399A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3442799A (en) * | 1966-08-04 | 1969-05-06 | Rohm & Haas | Clarification of raw sewage using hydrolyzed copolymers of polymerizable acrylic and vinyl compounds |
US3506570A (en) * | 1968-05-08 | 1970-04-14 | Dow Chemical Co | Clarification of and phosphate removal from sewage |
US4028238A (en) * | 1975-11-03 | 1977-06-07 | Dart Industries Inc. | Treatment of municipal waste sludges |
US4013555A (en) * | 1976-03-24 | 1977-03-22 | Nalco Chemical Company | Process for reducing BOD in food processing plant wastes |
US4849128A (en) * | 1981-03-24 | 1989-07-18 | Blue Circle Industries Limited | Process and composition for conditioning an aqueous system |
US5531907A (en) * | 1993-11-25 | 1996-07-02 | Nalco Limited | Treatment of agricultural waste |
US5562829A (en) * | 1994-06-09 | 1996-10-08 | Agricultural Research Institute Of Ontario | Process for clarifying milkhouse wastewater |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3397139A (en) | Waste treatment process | |
GB816399A (en) | Improvements in the agglomeration of suspended particles in aqueous media | |
CN107902826A (en) | A kind of power plant desulfurization wastewater zero-discharge treatment system and method | |
CN110937762B (en) | PVA-containing desizing printing and dyeing wastewater pretreatment method | |
CN104944544A (en) | Papermaking sewage flocculant and preparation method thereof | |
US3738933A (en) | Process for the reduction of the biochemical oxygen demand of sewage and for the recovery of the inherent protein | |
FR2327965A1 (en) | Dewatering activated sludge from effluent treatment - by acidifying, heating then separating the dehydrated sludge | |
GB1462736A (en) | Anaerobic waste treatment process employing recycle of purified effluent | |
US3492225A (en) | Coagulation and settling of finely divided solids from aqueous suspensions thereof | |
US3847807A (en) | Removal of cyanide and color bodies from coke plant wastewater | |
CN110510828A (en) | A kind of recycling treatment process of epoxy resin production waste-water | |
RU95107659A (en) | Process fro purifying aqueous waste pulp at forest industry enterprises | |
Dias et al. | Calcium nutrition of Sphaerotilus growing in a continuous-flow apparatus. | |
NO980210L (en) | Process for treating activated sludge excess | |
FR2382406A1 (en) | Neutralising acid contg. liquors esp. metal cleaning liquors - using chalk of particle size below a half milli-meter | |
KR810000769B1 (en) | Process for treating waste water containing polyvinyl alcohol | |
JPS5851997A (en) | Method of dehydrating sludge | |
CN216997951U (en) | Heavy metal-containing acid-base wastewater treatment system | |
GB1318861A (en) | Waste treatment plants | |
JPS6178500A (en) | Dehydration treatment of organic sludge water | |
US2268647A (en) | Composition and process for the treatment of sewage and waste material and sludges therefrom | |
CN106186118A (en) | A kind of Industrial waste water treatment agent | |
SU814898A1 (en) | Method of waste water purification | |
SU604827A1 (en) | Method of processing waste water sediment | |
CN104386898A (en) | Wastewater sludge treatment method |