Method for treating organosilicone wastewater

The invention discloses a method for treating organosilicone wastewater, and relates to the technical field of wastewater treatment. The method comprises the following steps: adding lime to adjust the pH of the wastewater to 7.0-8.5 to precipitate and remove most of condensable organic matters; addi...

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Bibliographische Detailangaben
Hauptverfasser: CHEN CHUNJIANG, WANG LIUFANG, GENG SHIGUANG, YIN LINFANG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for treating organosilicone wastewater, and relates to the technical field of wastewater treatment. The method comprises the following steps: adding lime to adjust the pH of the wastewater to 7.0-8.5 to precipitate and remove most of condensable organic matters; adding one or two of NaOH and KOH bases to a clear liquid obtained after the precipitation to adjust the pH value to 11.5 or more, heating the clear liquid to 60-80 DEG C, polymerizing an organosilicone monomer for 5-12 h, and filtering the obtained reaction solution; adding an acid to the filtered wastewater at 60-80 DEG C to control the pH value at 3.0-4.0, adding ferrous sulfate and hydrogen peroxide, and carrying out chemical oxidation treatment 4-6 h; and adding the obtained clear liquid to lime to adjust the pH to 6.0-8.5, standing the clear liquid and the lime, discharging the obtained clear liquid after standard reaching, and dehydrating, drying and outward transporting the obtained precipitate. The method has