GB823082A - Improvements in or relating to the purification and clarification of aqueous liquids - Google Patents
Improvements in or relating to the purification and clarification of aqueous liquidsInfo
- Publication number
- GB823082A GB823082A GB2184456A GB2184456A GB823082A GB 823082 A GB823082 A GB 823082A GB 2184456 A GB2184456 A GB 2184456A GB 2184456 A GB2184456 A GB 2184456A GB 823082 A GB823082 A GB 823082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mineral matter
- basic chloride
- aluminium
- trivalent metal
- solution
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
An aqueous suspension of mineral matter is coagulated by mixing therewith a basic chloride of a trivalent metal. The mineral matter may be china clay, and the suspension may be an effluent which it is desired to treat so that it can be discharged to a river or re-used. The trivalent metal may be aluminium, iron or chromium, and a suitable basic chloride is aluminium chlorohydrate Al2(OH)4Cl2. The basic chloride, which may be employed in the form of an aqueous solution, may be used in conjunction with another reagent for inducing settlement of the suspended mineral matter, e.g. a colloidal solution of starch in caustic soda.ALSO:An aqueous suspension of mineral matter is coagulated by mixing therewith a basic chloride of a trivalent metal. The mineral matter may be coal, shale, quartz and/or clay, and the suspension may be an effluent which it is desired to treat so that can be discharged into a river or reused. The trivalent metal may be aluminium, iron or chromium. The basic chloride, which may be employed in the form of an aqueous solution, may be used in conjunction with another reagent for inducing settlement of the suspended mineral matter, e.g. a colloidal solution of starch in caustic soda. In examples, aluminium chlorohydrate Al2(OH)4Cl2 is used to treat coal washery liquors, washing water from sand or gravel washing plants, and aqueous suspensions of fly ash from power stations.ALSO:A sugar solution is clarified by mixing therewith a basic chloride of a trivalent metal (e.g. aluminium, iron or chromium). The basic chloride, which may be employed in the form of an aqueous solution, may be used in conjunction with another reagent for inducing settlement of suspended mineral matter, e.g. a colloidal solution of starch in caustic soda. In an example, unrefined sugar solution is heated to 180 DEG F., to it there is added bone char (which has been used once), aluminium chlorohydrate Al2(OH)4Cl2, sufficient lime to bring the pH to 7, and a small amount of kieselguhr filter aid, and the mixture is then filtered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2184456A GB823082A (en) | 1956-07-14 | 1956-07-14 | Improvements in or relating to the purification and clarification of aqueous liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2184456A GB823082A (en) | 1956-07-14 | 1956-07-14 | Improvements in or relating to the purification and clarification of aqueous liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB823082A true GB823082A (en) | 1959-11-04 |
Family
ID=10169759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2184456A Expired GB823082A (en) | 1956-07-14 | 1956-07-14 | Improvements in or relating to the purification and clarification of aqueous liquids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB823082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009810A1 (en) * | 1978-10-06 | 1980-04-16 | Süd-Chemie Ag | Process for eliminating silicic acid from sugar solutions |
-
1956
- 1956-07-14 GB GB2184456A patent/GB823082A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009810A1 (en) * | 1978-10-06 | 1980-04-16 | Süd-Chemie Ag | Process for eliminating silicic acid from sugar solutions |
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