Selective removal of micro-contaminants from sludge

An installation for selectively removing micro-contaminants from sludge, said installation comprising:

• a) a first tank having a first inlet, a first outlet and a second outlet, the first tank being configured to be fed at the first inlet with wastewater contaminated with micro-contaminants and to produce:
• a. a first stream of primary sludge comprising a first part of micro-contaminants recovered at the first outlet;
• b. a second stream of remaining wastewater comprising a second part of micro-contaminants recovered at the second outlet;
• b) a biological tank, suitable for aerobic bacteria oxidation, anoxic or anaerobic bacteria metabolism, having a first inlet, and a first outlet, the first inlet being in fluid connection with the second outlet of the first tank, the biological tank being configured to be fed at the first inlet with the second stream of remaining wastewater and to produce biological sludge recovered at the first outlet;
• the installation being further configured to perform anaerobic digestion of the biological sludge, thereby producing methane and a solid product;
• and/or the biological sludge being recovered for land application;
• c) an incineration workshop having a first inlet, a first outlet and a second outlet, the first inlet being in fluid connection with the first outlet of the first tank, the incineration workshop being configured to be fed at the first inlet with the first stream of primary sludge and to eliminate the primary sludge and the first part of micro-contaminants and to produce ashes recovered at the first outlet and heat recovered at the second outlet.