公开(公告)号：US20080200565A1

公开(公告)日：2008-08-21

申请号：US12011567

申请日：2008-01-28

申请人： Jeffrey H. Harwell ,  David A. Sabatini ,  William Shaw ,  Mrinal Gala ,  Bor-Jier Shiau ,  Tzu-Ping Hsu

发明人： Jeffrey H. Harwell ,  David A. Sabatini ,  William Shaw ,  Mrinal Gala ,  Bor-Jier Shiau ,  Tzu-Ping Hsu

IPC分类号： A61K47/14 ,  C11D3/20 ,  B08B3/04 ,  C09K8/60

CPC分类号： C11D17/0021 ,  C09K8/524 ,  C09K8/584 ,  C09K8/602 ,  C11D1/123 ,  C11D1/29 ,  C11D1/37

摘要： Surfactant systems are provided that, upon contact with an oil, can produce a Windsor Type III middle phase microemulsion at a total surfactant concentration of 1.5% to 1.0% or less based on the weight of water in the surfactant system, without the need for a cosolvent or linking molecule. The microemulsions can have a separation time less than about 2 hours and even less than about 15 minutes.

摘要翻译： 提供表面活性剂体系，当与油接触时，可以基于表面活性剂体系中的水的重量，产生总表面活性剂浓度为1.5％至1.0％或更低的Windsor III型中间相微乳液，而不需要 共溶剂或连接分子。 微乳液可以具有小于约2小时，甚至小于约15分钟的分离时间。

公开(公告)号：US06186938B1

公开(公告)日：2001-02-13

申请号：US09489047

申请日：2000-01-21

申请人： Jeffrey H. Harwell ,  David A. Sabatini

发明人： Jeffrey H. Harwell ,  David A. Sabatini

IPC分类号： B09C100

CPC分类号： B09C1/00 ,  B09C1/02

摘要： Some ground water sites are capable of achieving risk-based closure without remedial efforts due to the soil's natural intrinsic remediation. However, in many cases this may not be possible due to the magnitude of the contamination. Surfactant enhanced intrinsic remediation is capable of enhancing natural remediation in several ways. First, by introducing the surfactant above its Krafft temperature when the ground water temperature is below the surfactant Krafft temperature, it is possible to install a permeable, sorptive wall that significantly decreases the contaminant migration, thereby improving the opportunity for natural intrinsic remediation to mitigate the contamination. If the contaminant levels are too great for this approach, as may be the case when “source zone” soil contamination is present, the approach is coupled with active extraction/ surfactant enhanced intrinsic remediation of the “source” zone (e.g., surfactant flushing). Thus, either by itself or in combination with other activities, an enhanced intrinsic remediation approach will allow for a site to undergo risk-based closure.

摘要翻译： 由于土壤的天然内在修复，一些地下水地点能够进行风险关闭，无需补救。 然而，在许多情况下，这可能是不可能的，因为污染的大小。 表面活性剂增强内在修复能够以多种方式增强自然修复。 首先，当地下水温度低于表面活性剂克拉夫特温度时，通过将表面活性剂引入其克拉夫特温度以上，可以安装可渗透的吸附壁，显着降低污染物迁移，从而改善自然内在修复的机会，以减轻 污染。 如果污染物水平对于这种方法来说太大了，就像“源区”土壤污染物存在的情况一样，该方法与活性提取/表面活性剂相结合，增强了“源”区的内在修复（例如表面活性剂冲洗） 。 因此，本身或与其他活动结合使用，增强的内在补救方法将允许现场进行基于风险的关闭。