کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
583894 877879 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Feasibility investigation of oily wastewater treatment by combination of zinc and PAM in coagulation/flocculation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Feasibility investigation of oily wastewater treatment by combination of zinc and PAM in coagulation/flocculation
چکیده انگلیسی
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: 100 mg/L, A-PAM dosage: 1.0 mg/L, settling time time: 40 min and pH 6.5-9.5), more than 99% of oil was removed and suspended solid value less than 5 mg/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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 147, Issue 3, 25 August 2007, Pages 991-996
نویسندگان
, , , ,