Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Kingston-upon-Thames]
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KINGSTON SEWAGE WORKS. E.
NATIVE GUANO COMPANY'S FILTERS.
Result of Analyses of Tank Effluents and Filtrates for six months from 1st July
to 31st December, 1903.
Date. 1903 | Albuminoid Ammonia. Parts per Million. | ||||||
---|---|---|---|---|---|---|---|
Tank Effluent run on to Filters. | Filtrates. | ||||||
Coke. Contact. Bed. | Clinker. Contact Bed. | Sprinkler Fed Contact Bed. | |||||
July 4 | ... | 2.60 | ... | 1.20 | ... | .94 | 1.20 |
„ 6 | ... | 3.00 | ... | 1.20 | ... | 1.36 | 1.00 |
„ 8 | ... | 2.32 | ... | 1.10 | ... | 1.14 | 1.00 |
„ 13 | ... | 3.48 | ... | 1.06 | ... | 1.30 | .96 |
„ 15 | ... | 3.40 | ... | 1.20 | ... | 1.60 | .96 |
„ 28 | ... | 2.12 | ... | .94 | ... | 1.10 | .70 |
August 4 | ... | ... | |||||
„ 5 | ... | 2.48 | ... | 1.20 | ... | 1.40 | 1.06 |
„ 8 | ... | 2.60 | ... | 90 | ... | 1.20 | .84 |
„ 10 | ... | 2.32 | ... | 1.00 | ... | 1.00 | .90 |
„ 12 | ... | 1.92 | ... | .80 | ... | 1.00 | .64 |
„ 14 | ... | 1.68 | ... | .66 | ... | .80 | .56 |
„ 18 | ... | 2.40 | ... | 1.10 | ... | 1.60 | .96 |
„ 22 | ... | 2.68 | ... | .90 | ... | .90 | .80 |
„ 25 | ... | 1.80 | ... | .70 | ... | .80 | .56 |
September 2 | ... | ||||||
„ 7 | ... | 2.36 | ... | .80 | ... | 1.00 | .80 |
„ 13 | |||||||
„ 14 | ... | 1.88 | ... | .92 | ... | 1.06 | .84 |
„ 17 | ... | ||||||
„ 24 | ... | ||||||
„ 25 | ... | 2.00 | ... | .84 | ... | 1.20 | .80 |
„ 28 | ... | 2.20 | ... | .94 | ... | 1.14 | .70 |
October 3 | ... | 1.96 | ... | .78 | ... | 1.06 | .70 |
„ 9 | ... | 2.40 | ... | .82 | ... | 1 06 | .78 |
„ 14 | ... | ... | |||||
„ 16 | ... | 2.12 | ... | .80 | ... | 1.00 | .90 |
„ 20 | ... | 2.60 | ... | .94 | ... | 1.30 | .94 |
„ 24 | ... | ... | |||||
„ 28 | ... | ... | |||||
November 7 | ... | 2.72 | ... | 1.00 | ... | 1.30 | .96 |
„ 9 | ... | 2.20 | ... | 1.00 | ... | 1.10 | 1.06 |
„ 11 | ... | 2.28 | ... | .90 | ... | 1.14 | .90 |
„ 14 | ... | 1.60 | ... | .76 | ... | .90 | .78 |
„ 17 | ... | 2.30 | ... | 1.00 | ... | 1.16 | 1.10 |
„ 21 | ... | 2.20 | ... | .96 | ... | 1.30 | .80 |
„ 24 | ... | 2.80 | ... | 1.10 | ... | 1.40 | .88 |
„ 28 | ... | 1.50 | ... | .72 | ... | .86 | .62 |
„ 30 | ... | 2.14 | ... | .94 | ... | 1.06 | .82 |
December2 | ... | 2.20 | ... | .90 | ... | 1.30 | .80 |
,, 7 | ... | 2.60 | ... | 1.04 | ... | 1.40 | .84 |
„ 8 | ... | 2.50 | ... | .96 | ... | 1.40 | .78 |
„ 11 | ... | 2.00 | ... | .80 | ... | 1.04 | .64 |
„ 19 | ... | 1.90 | ... | .94 | ... | 1.04 | .80 |
„ 21 | ... | 2.20 | ... | .70 | ... | 1.00 | .70 |
„ 28 | ... | 2.40 | ... | 1.00 | ... | 110 | .90 |
„ 31 | 2.00 | .90 | 1.50 | .80 | |||
Averages | 2.30 | .93 | 1.15 | .84 | |||
Purification | ... | ... | 60% | 50% | 63% |
London, 27th January, 1904.