Title :
Flocculation treatment of wastewater from low-level penetrative oil fields in Northern Shaanxi
Author :
Li, Ran ; He, Chao ; Chen, Ling ; Zhao, Run ; He, Yanling
Author_Institution :
Sch. of Life Sci. & Technol., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
This paper explored the reservoir geology and characteristics of oil fields wastewater in Northern Shaanxi, and developed a new polysilicate complex (PsiC) coagulant. The coagulant is used to treat the oil field wastewater and the experimental results show that it exhibits better performances than PAC and FeCl3 flocculants. After oil wastewater treated by PsiC, turbidity could be as low as 1 NTU, COD elimination rate is up to 85%, oil content is 10-14 mg/L and suspended substance (SS) content is 2-4 mg/L, which imply that the PsiC coagulant is more suitable for oil field wastewater treatment.
Keywords :
coagulation; flocculation; hydrocarbon reservoirs; turbidity; wastewater treatment; COD elimination rate; Northern Shaanxi; chemical oxygen demand; flocculation treatment; oil field wastewater treatment; penetrative oil fields; polysilicate complex coagulant; reservoir geology; suspended substance content; turbidity; Permeability; Reservoirs; Solids; Wastewater; Wastewater treatment; Water pollution; low permeability reservoir; oil field wastewater; polysilicate complex; water injection;
Conference_Titel :
Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-339-1
DOI :
10.1109/ISWREP.2011.5893232
