聚丙烯酰胺(HPAM)在提高油田采收率的同时,也为采出水的处理提出了新的挑战。采用UV254 nm处理,将其应用于油田含聚合物污水的快速降粘。研究结果表明:UV254 nm应用于聚丙烯酰胺配水时,在30 min的处理过程中,粘度由57.2 m Pa·S迅...聚丙烯酰胺(HPAM)在提高油田采收率的同时,也为采出水的处理提出了新的挑战。采用UV254 nm处理,将其应用于油田含聚合物污水的快速降粘。研究结果表明:UV254 nm应用于聚丙烯酰胺配水时,在30 min的处理过程中,粘度由57.2 m Pa·S迅速降低为2.12 m Pa·S;实际含聚污水的粘度在30 min处理过程中由2.902 m Pa·S降低为1.096 m Pa·S。UV254 nm处理同样可以控制实际含聚污水中的悬浮物和含油量,使其在30min的处理过程中由42.73 mg/L和38.96 mg/L分别降为20.91 mg/L和23.54 mg/L。UV254 nm在油田含聚污水处理上对粘度、含油量和悬浮物实现了较好的控制,且可以缩短处理时间,减小构筑物体积,因此可以作为传统沉降工艺的替代工艺应用于油田含聚污水的处理。展开更多
The most abundant natural biopolymer on earth, cellulose fiber, may offer a highly efficient, low-cost, and chemical-free option for wastewater treatment. Cellulose is widely distributed in plants and several marine a...The most abundant natural biopolymer on earth, cellulose fiber, may offer a highly efficient, low-cost, and chemical-free option for wastewater treatment. Cellulose is widely distributed in plants and several marine animals. It is a carbohydrate polymer consisting of β-1,4-linked anhydro-D-glucose units with three hydroxyl groups per anhydroglucose unit(AGU). Cellulose-based materials have been used in food, industrial, pharmaceutical, paper, textile production, and in wastewater treatment applications due to their low cost, renewability,biodegradability, and non-toxicity. For water treatment in the oil and gas industry, cellulose-based materials can be used as adsorbents, flocculants, and oil/water separation membranes. In this review, the uses of cellulose-based materials for wastewater treatment in the oil & gas industry are summarized, and recent research progress in the following aspects are highlighted: crude oil spill cleaning, flocculation of solid suspended matter in drilling or oil recovery in the upstream oil industry, adsorption of heavy metal or chemicals, and separation of oil/water by cellulosic membrane in the downstream water treatment.展开更多
文摘聚丙烯酰胺(HPAM)在提高油田采收率的同时,也为采出水的处理提出了新的挑战。采用UV254 nm处理,将其应用于油田含聚合物污水的快速降粘。研究结果表明:UV254 nm应用于聚丙烯酰胺配水时,在30 min的处理过程中,粘度由57.2 m Pa·S迅速降低为2.12 m Pa·S;实际含聚污水的粘度在30 min处理过程中由2.902 m Pa·S降低为1.096 m Pa·S。UV254 nm处理同样可以控制实际含聚污水中的悬浮物和含油量,使其在30min的处理过程中由42.73 mg/L和38.96 mg/L分别降为20.91 mg/L和23.54 mg/L。UV254 nm在油田含聚污水处理上对粘度、含油量和悬浮物实现了较好的控制,且可以缩短处理时间,减小构筑物体积,因此可以作为传统沉降工艺的替代工艺应用于油田含聚污水的处理。
基金financially supported by PetroChina Scientific Research and Technology Development Project, China (2018A-0907, YGJ2019-11-01)the support from CFI and NSERC, Canada
文摘The most abundant natural biopolymer on earth, cellulose fiber, may offer a highly efficient, low-cost, and chemical-free option for wastewater treatment. Cellulose is widely distributed in plants and several marine animals. It is a carbohydrate polymer consisting of β-1,4-linked anhydro-D-glucose units with three hydroxyl groups per anhydroglucose unit(AGU). Cellulose-based materials have been used in food, industrial, pharmaceutical, paper, textile production, and in wastewater treatment applications due to their low cost, renewability,biodegradability, and non-toxicity. For water treatment in the oil and gas industry, cellulose-based materials can be used as adsorbents, flocculants, and oil/water separation membranes. In this review, the uses of cellulose-based materials for wastewater treatment in the oil & gas industry are summarized, and recent research progress in the following aspects are highlighted: crude oil spill cleaning, flocculation of solid suspended matter in drilling or oil recovery in the upstream oil industry, adsorption of heavy metal or chemicals, and separation of oil/water by cellulosic membrane in the downstream water treatment.
