The separation of solids from a waste water carrier by passing them through a porous medium.

The method may be used to treat aqueous effluent streams to remove organic compounds from the stream.

Apparatus (10) for treating aqueous wastes, such as wastewater, landfill leachates and aqueous effluents, comprises an electrolytic cell (12).

Measurement of pH or redox potential at the liquid outlet of wet scrubbers.

Said agent can constitute a stabilising agent of said metals and can be used for eliminating or stabilising heavy metals contained in industrial aqueous effluents.

A method for removing sodium sulfate from nickel and ammonia containing aqueous effluents.

May not be applicable when the temperature of the waste water is low.

Injection of carbon dioxide allows to master the pH of liquid effluents.

Waste water derived from processes and activities within the production plant, excluding surface run-off water.

The present invention is directed to various sets of unit operations for treating aqueous effluents and logic for designing and effecting the treatment.

In order to reduce the pollution load of the collected waste water, BAT is to use both of the techniques given below.

These AOPs include O3/UV, H2O2/UV, O3/H2O2/UV and TiO2/UV.

The invention enables organic pollution (COD) released in the final aqueous effluents (24) of the process to be reduced, as well as productivity to be increased.

Recently, a strategy for reusing the aqueous effluents derived from the food processing industry has been established.

Waste water treatment techniques to reduce emissions of metals to water