The production of food products in all industrial processes is subject to strict standards in terms of gaseous and liquid wastes. These are considerable due to the volumes of water used to clean, rinse and macerate raw materials. One of the main characteristics of these effluents is the elevated content of organic products (DOC). In this respect, the activated carbons have a major role to play in biological treatment processes.
Processing organic effluents
Issues:
Setting in bottles - Treating agroalimentary effluents
Solutions:
Powder / granular activated carbon will be implemented according to effluent quality and treatment objectives.
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Powder activated carbons:
Powder activated carbons injected into the activated sludge basin will allow for a greater degree of elimination of the carbonized pollution and will result in improved performance during sludge decantation. The recovered sludge is then incinerated.
PICA's PAC's offer excellent kinetics and elevated activation levels suitable for the elimination of numerous pollutants.
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Granular activated carbons:
The use of granular activated carbons, in the form of a filtration bed of the biological basin, will percolate the effluent across the filtration bed using the material's natural macroporosity. These GAC characteristics promote bacteriological sedimentation and the breakdown of organic materials contained in the water, even at low temperatures (lower than 10° C for several months). Reducing organic carbon quantities lowers the risk of biofilm growth in networks, offering improved organic stability of treated water.
Furthermore, since materials biodegraded in this way do not enter into the carbon saturation process, the carbon lifetime becomes extended (up to 8 years) and the frequency of carbon replacement is reduced.