[利用二硫代氨基甲酸盐型絮凝剂处理石油开采中聚合物驱模拟采出废水]
[Treatment of simulated produced wastewater from polymer flooding in oil production using dithiocarbamate-type flocculant].
作者信息
Gao Yue, Jia Yu-Yan, Gao Bao-Yu, Cao Bai-Chuan, Zhang Yong-Qiang, Lu Lei
机构信息
Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China.
出版信息
Huan Jing Ke Xue. 2010 Oct;31(10):2349-53.
A dithiocarbamate flocculant, DTC (T403), was prepared by the reaction of amine-terminated polyoxypropane-ether compound known as Jeffamine-T403 and carbon disulfide in alkaline solution. The oil removal efficiency of DTC (T403) for simulated produced wastewater from polymer flooding in oil production was studied by Jar-test. The effect of the dosage of DTC (T403), hydrolyzed polyacrylamide (HPAM), Fe2+ and Fe3+ ions, and pH on the oil removal efficiency of DTC (T403) was investigated. The results showed that the chelate polymer formed by DTC (T403) and Fe2+ ion has good oil removal performance by net capturing mechanism. HPAM had a negative effect on oil removal efficiency of DTC (T403). For the treatment of the simulated wastewater containing 0-900 mg/L of HPAM and 300 mg/L of oil, the residual oil concentrations in water samples decreased below 10 mg/L when the dosage of Fe2+ and DTC (T403) was 10 mg/L and 25 mg/L, respectively. The oil removal efficiency of DTC (T403) was affected by pH and good oil removal efficiency was obtained when the pH was below 7.5. DTC (T403) is appropriate for the treatment of oily wastewater containing Fe2+ ion.
一种二硫代氨基甲酸盐絮凝剂DTC（T403），由胺基封端的聚氧化丙烷醚化合物Jeffamine-T403与二硫化碳在碱性溶液中反应制备而成。通过烧杯试验研究了DTC（T403）对石油生产中聚合物驱模拟采出废水的除油效率。考察了DTC（T403）、水解聚丙烯酰胺（HPAM）、Fe2+和Fe3+离子的用量以及pH值对DTC（T403）除油效率的影响。结果表明，DTC（T403）与Fe2+离子形成的螯合聚合物通过净捕集机理具有良好的除油性能。HPAM对DTC（T403）的除油效率有负面影响。对于处理含有0 - 900 mg/L HPAM和300 mg/L油的模拟废水，当Fe2+和DTC（T403）的用量分别为10 mg/L和25 mg/L时，水样中的残余油浓度降至10 mg/L以下。DTC（T403）的除油效率受pH值影响，当pH值低于7.5时可获得良好的除油效率。DTC（T403）适用于处理含Fe2+离子的含油废水。
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