GB526866A - Improvements in and relating to treatment of waste water in the manufacture of paper - Google Patents
Improvements in and relating to treatment of waste water in the manufacture of paperInfo
- Publication number
- GB526866A GB526866A GB956939A GB956939A GB526866A GB 526866 A GB526866 A GB 526866A GB 956939 A GB956939 A GB 956939A GB 956939 A GB956939 A GB 956939A GB 526866 A GB526866 A GB 526866A
- Authority
- GB
- United Kingdom
- Prior art keywords
- waste water
- lime
- pumped
- aluminium
- treated
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
Abstract
526,866. Re-use of white water of paper manufacture ; aluminium salts. REISS. A., and KAHN, A. March 27, 1939, No. 9569. [Class 96] [Also in Group III] Suspended substances in waste water of papermanufacture are rapidly brought down by precipitating aluminium hydroxide by lime &c., e.g., at pH=5 to 7, additional aluminium salt being added if needed, the sludge being then separated, treated with acid, e.g., sulphuric to give an aluminium salt, e.g., for sizing, and leaving sediment for addition to pulp As illustrated, waste water containing the greatest quantity of filler &c. is pumped at P 1 to the mixing vat D to which is also pumped at P 2 , part of that containing less filler, the remainder being treated with lime &c and passing to a settling tank A from which the precipitate &c. pass to an acid treatment vessel B the residue from which passing, e.g., to pulp beaters C 1 , C 2 . Water from the tank A collected at E may be used for felt cleaning &c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB956939A GB526866A (en) | 1939-03-27 | 1939-03-27 | Improvements in and relating to treatment of waste water in the manufacture of paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB956939A GB526866A (en) | 1939-03-27 | 1939-03-27 | Improvements in and relating to treatment of waste water in the manufacture of paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB526866A true GB526866A (en) | 1940-09-26 |
Family
ID=9874504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB956939A Expired GB526866A (en) | 1939-03-27 | 1939-03-27 | Improvements in and relating to treatment of waste water in the manufacture of paper |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB526866A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1191757B (en) * | 1954-03-20 | 1965-04-22 | Anton Held | Method and device for clarifying waste water, in particular paper mill waste |
| GB2281319A (en) * | 1993-08-27 | 1995-03-01 | Wiggins Teape Group Ltd | Processing backwater in a papermachine |
-
1939
- 1939-03-27 GB GB956939A patent/GB526866A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1191757B (en) * | 1954-03-20 | 1965-04-22 | Anton Held | Method and device for clarifying waste water, in particular paper mill waste |
| GB2281319A (en) * | 1993-08-27 | 1995-03-01 | Wiggins Teape Group Ltd | Processing backwater in a papermachine |
| AU667015B2 (en) * | 1993-08-27 | 1996-02-29 | Wiggins Teape Group Limited, The | Papermaking process and apparatus for use therewith |
| GB2281319B (en) * | 1993-08-27 | 1997-03-05 | Wiggins Teape Group Ltd | Papermaking process and apparatus for use therewith |
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