Effects of temperature and surfactants on naphthalene and phenanthrene sorption by soil

来源 :环境科学学报(英文版) | 被引量 : 0次 | 上传用户:bbtr12376
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Adsorption experiments were carried out to investigate the sorption behaviors of naphthalene and phenanthrene in six different soils and to determine the effects of temperature, linear alkylbenzene sulfonate (LAS) and cetylrimethyl ammonium bromide (CTAB) on sorption. The results show that for a given sorbent phenanthrene exhibited greater nonlinear and stronger sorption than naphthalene. There was a strong negative correlation for the Koc values with organic carbon content (foc). The increase of temperature was not favorable to sorption. Sorption decreased along with the increasing aqueous LAS concentration from 0 to 1000 mg/L. At low CTAB concentration (< 100 mg/L), the adsorption increased as CTAB hemimicelles formed on the soil surface. At high concentration, CTAB decreased the adsorption by occupying active hydrophobic adsorption sites and solubilization of naphthalene and phenanthrene.
其他文献
为了满足高品质混凝土路面砖(板)的成型需要,应该在模具的每一个腔内都应均匀地填充新拌混凝土;也就是说,每一个模具腔内都必须重量相同填充的新拌混凝土.在此基础上,将底层
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
随着全球化进程的不断深入,农业发展全球化已成了衡量一个国家发展的重要因素,我国作为人口大国,粮食刚需量不断提升,如何解决粮食供给问题,是目前农业发展最为迫切需要解决
当前,治理果树病虫害是我国果树业健康发展、果品总产量增加的重要关键,有效的果树病虫害治理还能够有效改善生态环境,促进社会可持续发展.为此,文章结合山东临沂地区实际情
期刊
当今建筑幕墙企业面对的是原材料价格攀升、人工成本不断上涨等日益激烈和残酷的市场竞争环境,若想在市场中立于不败之地,谋求企业的长远发展,建立企业技术标准化体系将是幕
The present paper focuses on the development steps of heat exchangers dedicated to single room ventilation unit with heat recovery (SRVHR) by proposing a numeri
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
工程施工中,材料的选择和质量控制是整个工程管理工作的重要组成部分.材料的选择不仅决定着整个工程的质量也同样关乎着人们的生命和财产安全.合理科学的选择施工材料不仅可