Report to the Local Government Board / by R. Angus Smith.

  • Robert Angus Smith
Date:
1882
Catalogue details

Licence: Public Domain Mark

Credit: Report to the Local Government Board / by R. Angus Smith. Source: Wellcome Collection.

    89/136 page 83
    Clarification of Liquors from Woollen Mill, Contents of last Tank before entering Lade, Copperas, or protosulpliate of iron, or ferrous sulphate. (a.) 8 lbs. Ferrous Sulphate 1 . „ 0-5 lbs. Lime jper 1,000 galls. (6.) 8 lbs. Ferrous Sulphate per 1,000 galls. (c.) 12 lbs. Ferrous Sulphate l - „ 0-5 lb. Lime | perl,000 galls. (f/.) 12 lbs. Ferrous Sulphate per 1,000 galls. (e.) 2-6]bs. FUClfi 1 , „„„ „ (?) Lime jpe-^ 1,000 galls. 66 o/o colour removed. 39 3 °/o colour removed. 84-5 /o colour removed. 78 • 7 % colour removed. 89 4 o/o colour removed. (/.) 8 lbs. Alum inp. 1000 (rail, 71 % colour removed. 0-5 lb. Lime JPer 1,000 galJs. ' (i?.) 8 lbs. Alum per 1,000 galls. (/i.) 6-5 lbs. FcoCLl , „„„ „ .5-6 lbs. Lime }P^'^l'0°Og*«- (t.) No. (A) with 8 lbs. Copperas per 1,000 galls. 98-9 % colour removed. 72 • .5 °/o colour removed. 95 • 6 o/o colour removed. The feiTous salt was added to destroy the chromate which was left by the ferric salt. a.) 3-7 1bs.Fe2Cl5 ] 8 ■ 0 lbs. Copperas y per 1,000 galls. 2-75 lbs. Lime J {A.-) 3-7 1bs. Fe^CIg 20 lbs. Copperas 2-75 lbs. Lime I per 1,1 000 galls. 96-5 «/o colour removed. 97 °jo colour removed. 96 • 5 °/o colour removed. (/.) 7-4ibs. FcoClg 1 4-0 lbs. Copperas I per 1,000 galls. 5 • 5 lbs. Lime J (ffi.) 3-7 1bs. FeoClfj UeriooOffalk 92 % colour removed. 2-75 lbs. Lime j^^^ ^aUs. («.) No. (m) with 8 lbs. FeS04 • 7 HgO per 1,000 galls. No further change. Comp. (A) and (z). (0.) No. (h) with 1-4 lbs. Lime per 1,000 galls. 98-2 /o original colour removed. The liquid flowing from the ppt. obtained in expt. (j) gave ■ Volatile matter ... 8 • 4 grs. per gall. Mineral „ . - _ 24-5 „ Total - - - - - 32-9 Before clarification the liquid contained- Volatile matter Mineral „ Total - . 5 lbs. CaCU 1-5 lbs. Fe„CIo 11-0 lbs. SO3 I per 1,000 galls. I (neutral iron sol.) 5 lbs. CaClg \ per 1,000 galls. 1-5 lbs. FcjClo J (neutral iron sol.) 81-9 grs. per gall. - 119-0 - 200-9 „ Filters slowly. Filtrate coloured blue. Similar to (p.) F 2
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