NDLI: Treatment of 1,2,4 -acid wastewater combined flocculation with complex extraction process

Content Provider	IEEE Xplore Digital Library
Author	Yuan Jin-Hai Fu Mao-Fu
Copyright Year	2011
Description	Author affiliation: College of Chemistry &Chemical Engineering, Chong Qing University of Science &Technology, C.Q.DC, China (Yuan Jin-Hai; Fu Mao-Fu)
Abstract	Combined flocculation with complex extract process to treat with 1,2,4-acid wastewater. Dicyandiamide formaldehyde was used as the flocculant; TOA(trioctylamine) as extracting agent, propyl butyl-carbinol as the diluent, NaOH as back-extracting agent. The best flocculation conditions are: pH value of the wastewater is 3, formaldehyde Dicyandiamide to wastewater at the ratio of 1%, stirred quickly for 2 min and slowly for 10 min at 70 °C, standing for 40 min. The best extraction conditions are: the concentration of extractant is 40%, O/A = 1∶6, the pH value of wastewater for 1.5. The optic back-extraction conditions are: NaOH concentration is 15%, (B/O) = 1∶2. The COD removal rate reaches to 97.77%, and the wastewater can be discharged according to national Standard.
Starting Page	4699
Ending Page	4702
File Size	280992
Page Count	4
File Format	PDF
ISBN	9781457702891
e-ISBN	9781457702907
DOI	10.1109/ICETCE.2011.5774500
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hazardous materials Naphthalenesulfonic acid Flocculation Octanol TOA Microwave theory and techniques 1,2,4-acid Oxidation Biology Dicyandiamide formaldehyde Wastewater Complex extraction
Content Type	Text
Resource Type	Article

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