Peracetic acid (80) is supplied to the activated sludge-dissolving vessel (81) as an activated sludge-dissolving agent to dissolve the excess activated sludge.

Activated sludge respiration inhibition testing

The activated sludge must be in an appropriate condition.

The pozzolanic material reacts with the waste-activated sludge.

semi-continuous activated sludge unit

As the mineral slurry concentrate contacts the activated alumina, the surfactant moisture on the mineral elements is then absorbed by the activated alumina.

As the coal contact the activated alumina, the surfactant moisture on the coal is then absorbed by the activated alumina.

The compositions contain activated alumina and magnesium oxide.

The compositions contain activated alumina and potassium carbonate.

When the activated alumina becomes saturated with siloxanes, the absorption capability of the activated alumina can be recovered by passing a regeneration gas through the bed of activated alumina.

For checking the activity of the activated sludge see Functional control, below.

test system: source, concentration and any pre-treatment of the activated sludge

In another process, wastewater is treated with an activated sludge.

Some methods include exposing water to a plasma gas to activate the water, adding acetic acid to the activated water; and mixing the acetic acid and activated water to form a solution.

The film comprises 1 to 10 % Activated Earth incorporated in polyethylene.