固态发酵技术制备溢油吸附剂

摘要:

石油开采、储存和运输过程中的溢油和泄漏等问题,已严重威胁到环境生态和人类健康.基于固态发酵技术,利用黑曲霉改性玉米秸秆制备出可生物降解的溢油吸附剂,可为开发生物改性溢油吸附材料提供新思路.利用多种表征技术对改性前后秸秆的组分、结构进行了分析,同时检测了秸秆的吸油性能,研究结果表明,35℃下黑曲霉作用玉米秸秆9d,改性材料对原油的吸附量可达14.28g/g,高于原玉米秸秆的吸油量(4.89g/g).秸秆吸油能力和其投加量呈负相关性,10min即达到吸附平衡.因此,利用固态发酵技术改性的玉米秸秆是一种高效和环境友好型的溢油清除材料.

A large volume of petroleum hydrocarbons coming from a variety of sources,human activities in the oil exploration,production,transportation and storage of petroleum,has been emitted into the environment and threatens the health of humans.A biodegradable oil-sorbent from corn stalk was prepared based on the technology of solid-state fermentation with Aspergillus niger,that would provide a new thought for employing a wider range of biomaterials to adsorb oil from contaminated environment.Results showed that the maximum sorption capacity of crude oil by modified corn stalk was up to 14.28 g/g,after the corn stalk was treated by Aspergillus niger at 35℃,while that by the original corn stalk was 4.89 g/g.Measurement of fiber components was employed and the structure changes of modified corn stalk were analyzed.Meanwhile,sorption performance of modified corn stalk was tested.Results showed that a negative correlation between oil absorption capacity and dosages of material,and it could reach the absorption equilibrium about ten minutes.Therefore,corn stalk modified by technology of solid-state fermentation is an efficient and environment-friendly sorbent for removal of spilled oil.

作者:

彭丹 郑刘春 李静华

Peng Dan;Zheng Liuchun;Li Jinghua(School of Traffic ＆Environment,Shenzhen Instit ute of Information Technology,Shenzhen 518172,China;School of Chemistry and Environment,South China Normal University,Guangzhou 510006,China;School of Environment,Henan Normal University,Xinxiang 453007,China)

机构地区:

深圳信息职业技术学院交通与环境学院 华南师范大学化学与环境学院 betway官方app 环境学院

出处:

《betway官方app 学报：自然科学版》 CAS 北大核心  2018年第4期67-73,共7页

基金:

国家自然科学基金(51508206) 深圳市科技计划(JCYJ20150417094158012 JCYJ20160415114215737 JCYJ20150626102232416 JCYJ20170306095333329) 广东省自然科学基金项目(2014A030313720) 广东省科技计划项目(2015A020215002)

关键词:

玉米秸秆 溢油 吸附 固态发酵 改性

corn stalk oil spill adsorption solid state fermentation modification

分类号:

X52 [环境科学与工程—环境工程]

固态发酵技术制备溢油吸附剂.pdf