supernatant

The cell culture supernatant was regularly tested for reverse transcriptase activity.

Françoise Barré-Sinoussi - Autobiography 2009

Following 5-10 min at 90°C, the hemoglobin in crude Fraction I was "cooked" and precipitated like mud, and the activity remained soluble in the supernatant.

Aaron Ciechanover - Autobiography 2005

Depending on the filter design, flow rates may have to be adjusted accordingly or the layer of supernatant water on the filter will get too high.

Chapter 5 2000

In practice, the stock of supernatant water is drained through the filter at a continuously declining flow rate during the night and in the morning hours, the filter is refilled with pretreated water to reassume normal operation.

8. Classification of roughing filters 1996

Filter cleaning must be carried out once the supernatant water has reached its maximum permissible level; i.e., when maximum filter resistance of about 1 meter is attained for the designed filtration rate.

1. Historical development and experience with water treatment 1996

This is also true for the recommended inlet controlled slow sand filters which compensate the progressive headloss development by a gradual increase of the supernatant water level.

8. Classification of roughing filters 1996

Filter cleaning starts with drainage of the supernatant water and dewatering of the top part of the sand bed.

1. Historical development and experience with water treatment 1996

Missing supernatant drainage system ® long drainage periods for dewatering the filter box will affect the biology in the sand bed

Chapter 8 1996

The top should be covered by a layer of coarse stones to shade the supernatant water and thus prevent algal growth often experienced in pretreated water exposed to the sun.

8. Classification of roughing filters 1996

The crude oil is left to stand for three days and the clarified supernatant oil (35.8 kg) is poured off leaving 11.2 kg of sediment

Chapter 6 1995