摘要
以吉化剩余污泥和辽河浮渣两种典型含油污泥为原料制备污泥吸附剂。吉化剩余污泥制备吸附剂(JA)的方法是以ZnCl_2溶液为活化剂,浓度0.5 mol/L,热解温度550℃,热解停留时间2 h;辽河浮渣制备吸附剂(LA)的方法为直接热解,热解温度650℃,热解停留时间2 h。结果表明:制备的两种吸附剂微观表面粗糙,呈不规则的多孔结构,并以中孔为主;JA和LA两种吸附剂的碘吸附值分别达到451.22 mg/g和376.48 mg/g,且对采油污水中COD和石油类的去除率强于木质活性炭,处理后的采油污水COD、石油类含量均达到《污水综合排放标准》(GB 8978—1996)中的二级标准。
The adsorbents were prepared from Jilin and Liaohe oily sludge with different method andthe adsorption characteristics were evaluated. The best preparation conditions for adsorbent JA from Jilin sludge are：addition of 0.5 mol/L ZnC12 activator, calcination temperature of 550 ℃for 2 h, while the adsorbent LA from Liaohe sludge is obtained by direct pyrolysis at 650 ℃ for 2 h. The surface morphologies of two adsorbents are relatively rough and have irregular porous structure with mainly in mesoporous. The iodine adsorption values of JA and LA are 451.22 mg/g and 376.48 mg/g respectively. Oil removal rates of adsorbents prepared are superior to activated carbon. COD and oil contents in adsorption treated oilfield wastewater can meet the requirements of grade two of ＂The National Integrated Wastewater Discharge Standard＂ （GB 89781-1996）.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2016年第1期22-26,共5页
Petroleum Processing and Petrochemicals
基金
中国石油科技创新基金资助项目(2013D-5006-0207)
长江大学工程技术学院科学研究发展基金资助项目(14j0101)
关键词
含油污泥
吸附剂
吸附特性
吸附能力
资源化利用
oily sludge
adsorbent
adsorption characteristic
adsorption capacity
resource utilization
