bacterial filter

The duty here was scut work, about as low as things could get, cleaning the bacterial filters below the hydro ponds.

When they are exhaled they are filtered through the white crystals of soda lime, and a bacterial filter.

The Berkefeld is a cheap, portable and efficient bacterial filter in general, though it does not remove viruses like Hepatitis A and mycoplasma.

The artificial uterus they developed is essentially complex aquarium, with air vents, bacterial filters, peristaltic pumps, observation ports, water exchange systems and a host of monitoring sensors.

In 1937 Knöll started cooperating with Jenaer Glaswerk Schott and Gen. which developed all-glass bacterial filters.

Often a small HME filter (Heat & Moisture exchanger, or humidifying / bacterial filter) is used.

All produce a great deal of sludge and none uses an efficient bacterial filter to partially clean the water first, which then allows the growth of far more useful plants.

They noted that the forms, which they called electron dense bodies were so small that they could pass through bacterial filters that normally withheld ordinary bacteria with cell walls.

Aquaria using conventional water purification methods (e.g. bacterial filters) generally have nutrient levels in parts per million, while algal scrubbers have maintained parts per billion concentrations, despite heavy biological loading in the Reef Tank.