Non-Fouling Ceramic Membranes for Treatment of Metastable Oil/Water Emulsions

用于处理亚稳态油/水乳液的防污陶瓷膜

• 批准号: 9360331
• 负责人: Richard Higgins
• 金额: $ 6.5万
• 依托单位: CeraMem Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9360331&HistoricalAwards=false
• 关键词: Non; Fouling; Ceramic; Membranes; Treatment

9360331 Higgins The objective of this project is to evaluate a physical wastewater treatment process applicable to such waste streams; namely, crossflow ultrafiltration (UF) using novel ceramic membranes that are treated to have low-surface-free-energy, "non- fouling" surfaces. Processing of metastable oil-in-water emulsions with conventional UF membranes leads to rapid membrane fouling and flux decline and is generally uneconomic because of this problem. Ceramic UF membranes with modified, low-energy surfaces will be evaluated using low-cost, high-surface-area supports. The resulting membrane modules will be evaluated for filtration properties using different types of synthetic metastable oil-in-water emulsions. The objectives of these experiments will be definition of preferred membrane modification techniques and demonstration of the capability of surface- modified membranes to maintain high, stable permeate flux levels while producing a substantially hydrocarbon-free permeate. This is a Phase I award based on a proposal submitted in response to NSF 93-18, Small Business Innovation Research (SBIR) Program Solicitation, addresses a class of wastewaters, metastable oil/water emulsions and similar waste streams for which a need exists for more cost-effective treatment and for which the flows on a national scale are large. Current treatment technologies for metastable oil/water emulsions are often ineffective, and substantial impairment of water resources results from disposal of such inadequately treated waste streams. The membranes to be evaluated, if developed and integrated within a production scale membrane module would be the key element in an oily wastewater treatment system with low capital and operating costs. Applications for this technology include those with extremely high waste flows, such as produced water from oil wells and desalter bottoms from crude oil washing at refineries.

9360331 Higgins 该项目的目标是评估适用于此类废物流的物理废水处理工艺； 即，使用新型陶瓷膜的错流超滤（UF），该陶瓷膜经过处理具有低表面自由能、“无污染”表面。 使用传统超滤膜处理亚稳态水包油乳液会导致膜快速污染和通量下降，并且由于这个问题通常是不经济的。 具有改性、低能表面的陶瓷超滤膜将使用低成本、高表面积的支撑物进行评估。 将使用不同类型的合成亚稳态水包油乳液评估所得膜组件的过滤性能。 这些实验的目的是定义优选的膜改性技术并证明表面改性膜保持高、稳定的渗透物通量水平同时产生基本上不含烃的渗透物的能力。 这是一个基于响应 NSF 93-18 小企业创新研究 (SBIR) 计划征集提交的提案的第一阶段奖项，涉及一类废水、亚稳态油/水乳液和类似废物流，这些废物流需要更具成本效益的治疗，并且在全国范围内的流量很大。 目前用于亚稳态油/水乳状液的处理技术通常是无效的，并且由于处理这种未经充分处理的废物流而导致水资源的严重损害。 如果待评估的膜被开发并集成到生产规模的膜组件中，则将成为资本和运营成本较低的含油废水处理系统的关键要素。 该技术的应用包括那些废水流量极高的应用，例如油井的采出水和炼油厂原油洗涤的脱盐塔底液。