Method for treating effluents containing carboxylated carbon fragments from carbon nanotubes
NOVELTY – Effluents treatment involves adding 0.1-50 mg of adsorbent for each 1.0 ml of effluent containing carboxylated carbon fragments. The resulting mixture is mechanically stirred for 10-90 minutes at room temperature for generating free sodium hydroxide solution and a precipitate of carboxylated carbon fragments. The obtained precipitate is collected, dried and then heat treated in an oxidizing atmosphere. USE – Method for treating effluents (claimed). ADVANTAGE – The method treats the effluents in a simple and cost-effective manner by saving water and sodium hydroxide. DESCRIPTION OF DRAWING(S) – The drawing shows a schematic flowchart of the effluents removal. (Drawing includes non-English language text).
Main Application Field
D15 (Chemical or biological treatment of water, industrial waste and sewage – including purification, sterilising or testing water, scale prevention, treatment of sewage sludge, regeneration of active carbon which has been used for water treatment and impregnating water with gas e.g. CO2, but excluding plant and anti-pollution devices (C02).); E17 (Other aliphatics.); F06 (Chemical-type treatment of textiles (D06B, L, M, P, Q).)
INVENTORS:
ALVES OSWALDO LUIZ
MARTINEZ DIEGO STEFANI TEODORO
SOUZA FILHO ANTONIO GOMES DE
PARIZOTTO NATALIA VALENGA
406_SULFATO
Patent number: WO2011137500-A1;BR201003664-A2
PATENT STATUS:
For information contact Inova Unicamp
FOR ADDITIONAL INFORMATION:
parcerias@inova.unicamp.br
+55 (19) 3521-5207 / 2607
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