Document Detail

Feasibility investigation of oily wastewater treatment by combination of zinc and PAM in coagulation/flocculation.
MedLine Citation:
PMID:  17350754     Owner:  NLM     Status:  MEDLINE    
Poly-zinc silicate (PZSS) is a new type of coagulant with cationic polymer synthesized by polysilicic acid and zinc sulfate. It has been used in several sorts of wastewaters treatment, but not used in oily wastewater treatment. In this study, we investigated the coagulation/flocculation of oil and suspended solids in heavy oil wastewater (HOW) by PZSS and anion polyacrylamide (A-PAM). The properties of PZSS cooperated with A-PAM were compared with PAC and PFS in dosages, PAMs amount, settling time, pH value and flocs morphology. The results showed that PZSS was more efficient than PAC and PFS. Under the optimum experimental conditions of coagulation/flocculation (dosage: 100mg/L, A-PAM dosage: 1.0mg/L, settling time time: 40min and pH 6.5-9.5), more than 99% of oil was removed and suspended solid value less than 5mg/L by using PZSS cooperated with A-PAM, which could satisfy the demands of the pre-treatment process for HOW to be reused in the steam boiler or recycled into the injecting well.
Yubin Zeng; Changzhu Yang; Jingdong Zhang; Wenhong Pu
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-02-03
Journal Detail:
Title:  Journal of hazardous materials     Volume:  147     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-08-06     Completed Date:  2007-12-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  991-6     Citation Subset:  IM    
School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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MeSH Terms
Acrylic Resins / chemistry*
Fuel Oils*
Hydrogen-Ion Concentration
Industrial Waste*
Polymers / chemistry*
Silicates / chemistry*
Time Factors
Waste Disposal, Fluid / methods*
Water Pollutants, Chemical / isolation & purification
Zinc / chemistry*
Reg. No./Substance:
0/Acrylic Resins; 0/Fuel Oils; 0/Industrial Waste; 0/Polymers; 0/Silicates; 0/Water Pollutants, Chemical; 7440-66-6/Zinc; 9003-05-8/polyacrylamide

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