Estuary of the River Mersey : The effect of the discharge of crude sewage into the estuary of the River Mersey on the amount and hardness of the deposit in the estuary.
- Great Britain. Water Pollution Research Board
- Date:
- 1938
Licence: Public Domain Mark
Credit: Estuary of the River Mersey : The effect of the discharge of crude sewage into the estuary of the River Mersey on the amount and hardness of the deposit in the estuary. Source: Wellcome Collection.
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![320 ESTUARY OF THE RIVER MERSEY TABLE 102—continued Un- : : settled Sica Moisture (per cent.). Experl- sewage | Method of fooveeee Period of Boe Soe added | drying. | Gry | drying. on ee weight). A B C | Mean cent.). 9 As experiment 8 Added | In Petri 6°8 0 73 73 73 73 (A, B, C) dishes. 1 day 68 67 68 68 ae 2days| 61 62 61 61 ey 54 56 54 55 Boe ays 47 49 47 48 ea 40 40 39 40 ae 32 33 31 32 as 23 24 23 23 Morsture lost (per cent. of original wet weight). 4 Mersey mud S 462 0 Soxhlet 3°9 0 0 0 0 0 (A, B, C) | in sea water, not thimbles. 13 hrs 28 26 26 27 stirred. 10litresmud 3 ae 32 30 30 31 suspension added to Cas 35 33 33 34 (4)10 litres tap water. 4 52 51 50 5] (5) 10. “tres sun: 307 59 57 56 57 settled sewage. Mix- 43 7 72 71 70 71 ture settled 3 hrs. Water poured off. Sludge stood over- night, water poured off and mud put into Soxhlet thimbles. 5 As experiment 4 Added | Soxhlet 5:0 0 0 0 0 0 (A, B, C) thimbles. 1dhrs.| 27 26 24 26 oS get 31 30 28 30 Sy 35 34 32 34 “4 ;, | 52 | Si | 50 Jess 30 aasy 58 57 56 57 48. ,, 72 72 71 72](https://iiif.wellcomecollection.org/image/b32171869_0364.jp2/full/800%2C/0/default.jpg)
