B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/126, 165/47,
B01D 53/00 (2006.01) B01D 5/00 (2006.01) B01D 53/84 (2006.01) C02F 1/24 (2006.01) C02F 9/00 (2006.01) C02F 1/04 (2006.01) C02F 1/44 (2006.01) C02F 3/00 (2006.01)
Patent
CA 1322519
ABSTRACT OF THE DISCLOSURE The dew point of the exhaust gas is firstly reduced to a value in the range of 60 - 65° C. There- after the exhaust gas flows through a washing and con- densing apparatus. A part of the prepurified conden- sate is recirculated in a loop for carrying out said washing. Thereafter the gas flows through a wet-deep bed filter apparatus. The sprinkler apparatus belonging thereto is fed again by a partly purified liquid. A drying chamber follows the wet-deep bed filter apparatus. The gas is then finally purified in an electro-filter plant. The condensate in the washing and condensing apparatus, to which also the washing liquid stemming from the sprinkler apparatus of the wet-deep-filter apparatus is added, is fed to a flotation plant. This condensate-liquid mixture has an increased temperature such that a better working in the flotation plant is obtained. The liquid flows thereafter through a bio- logical treatment plant, a repurification apparatus, a sand filter apparatus and finally through an ultra- filtration apparatus. Between the individual liquid treatment apparatuses and plants, respectively, a part of the liquid is branched off and is fed in a closed loop fashion back to other apparatuses or plants in order to carry out purifying or cleaning, respectively, functions thereat. This allows an extremely economical operation of the entire apparatus.
608809
Gowling Lafleur Henderson Llp
Hydrotechnik Gmbh
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