杏十三-Ⅱ含聚合物污水絮凝剂用量优化

THE OPTIMIZATION OF FLOCCULANT DOSAGE OF APRICOT THIRTEEN-Ⅱ CONTAINING POLYMER WASTEWATER

针对处理油田含聚污水的絮凝剂用量优化研究提出一种研究方法,即通过测定杏十三-Ⅱ联合污水站采出液Zeta电位、悬浮固体含量以及粒径中值微观参数,得到絮凝剂用量与各项参数之间的变化规律,并找出絮凝剂最优用量范围,实现该联合站絮凝剂用量优化。实验得出,投加无机絮凝剂聚合硫酸铁(PFS)、聚合硫酸铝(PAC)及有机絮凝剂聚丙烯酰胺(PAM)、聚二甲基二烯丙基氯化铵(PDMDAAC)均使粒径中值增大、Zeta电位趋于0且悬浮固体含量降低,其中PAC的最优用量范围为90~130mg/L;同时,当投加90mg/L PAC+40mg/L PAM复合絮凝剂时,既能提高污水处理效果,也可以减少无机絮凝剂用量,达到优化的目的。

Aiming at the optimization of dosage of flocculant poly containing wastewater treatment in oilfield, this paper puts forward a research method, through the determination of thirteen Apricot-Ⅱ joint sewage station produced liquid suspended solid content and Zeta potential, median particle size, microscopic parameters, the change law between the flocculant dosage and the parameters, and find out the optimal dosage of flocculant the realization and optimization of the flocculant dosage combina- tion station. Experimental results show that the addition of inorganic flocculant polyferric sulfate （PFS）, polyaluminum sulfate （PAC） and organic flocculant （PAM）, two poly dimethyl diallyl ammonium chloride （PDMDAAC） are the median particle size increases, the Zeta potential and suspended solids content decreased to 0, the optimal dosage range of PAC to 90- 130 mg/L; at the same time, when the dosage of 90 mg/L PAC＋40 mg/L PAM composite flocculant, both to improve the sewage treatment effect, can also reduce the inorganic flocculant dosage, achieve the purpose of optimization.