The water to be desalinated and the effluents flow countercurrent to one another.

Countercurrent is preferred as it is the most efficient.

There are several methods including the counter-current, cross-flow and co-current methods, with the counter-current method used the most as it is the most reliable.

The hot regenerated catalyst is returned to the back-mixed fluidized bed reactor at a rate sufficient to maintain the back-mixed fluidized bed reactor at substantially isothermal conditions.

However, I wish to offer a constructive criticism of some of the sanctions leveled against Penn State.

The invention relates to a mixing head for the counter-current injection mixing of fluids, with a mixing chamber into which the fluids to be mixed are injected towards one another through opposite mixing nozzles.

Do not exhaust yourself trying to swim against the riptide.

The two streams (18A, 18B) can run in the same direction (co-current) or in respectively opposite directions (countercurrent).

The extraction flow passes in counter-current flow through water-treating means (35).

Hence, we must fight against life daily; we must learn to swim against the current.

The new farm owners, Against the Grain, October 2009.

a swimming pool (9x4m) with heated swimming against the current

[as if the New Bank had been named on the signature pages thereof], provided

Unfortunately, Israel has not been able to swim against the current.

The new farm owners, Against the Grain, October 2009.