SBIR Phase I: Development and Evaluation of Novel Polymeric Sheet Membranes for Membrane Bioreactors

SBIR 第一阶段：用于膜生物反应器的新型聚合物片膜的开发和评估

• 批准号: 1549418
• 负责人: Subir Bhattacharjee
• 金额: $ 14.89万
• 依托单位: Water Planet Engineering LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1549418&HistoricalAwards=false
• 关键词: SBIR; Phase; Development; Evaluation; Novel

The broader impact/commercial potential of this Small Business Innovation Research Phase I project is that it delivers a novel polymeric membrane filtration material that is resistant to fouling by sticky organic matter present in wastewaters treated in membrane bioreactors (MBRs). Membrane fouling is a leading problem encountered in MBR systems, and is poorly served by incumbent technologies. Filtration membranes made from the proposed engineered polymer material could be significantly more fouling resistant, easily cleanable, and display enhanced chemical resilience compared to conventional polymeric membranes used in commercially available MBRs. The global MBR applications market is at its early growth phase, with no clear dominant technology and market leader. The proposed membrane technology will be highly differentiated and is expected to substantially improve the economics and reliability of MBRs.The technical objectives of this Phase I research project are to develop a flat sheet membrane with (1) high water permeability, (2) hydrophilic and super-oleophobic surface properties, (3) high mechanical/thermal/acid/base resistance, and (4) high oxidant resistance. Membranes with high water permeability require lower operating pressures (lower energy requirements). Membranes that are extremely hydrophilic are more fouling resistant, and membranes that are highly oleophobic are more oil-tolerant. Mechanical, thermal, and chemical (acid, base, chlorine) tolerance are critical for enabling aggressive membrane cleaning. The oxidant tolerance is specifically desired to render the membranes functional in high purity oxygen membrane bioreactors (HPO-MBR), where high organic loading is maintained in persistently higher oxidation potential (high dissolved oxygen) media. Thus, polymeric membranes with better long-term oxidant resistance could exhibit longer lifetimes, and lower cleaning frequencies and downtime in an HPO-MBR process. This project aims to molecularly design the side chain functionality of the backbone polymer entity to create such an oxidation tolerant membrane. A polymeric membrane with these specifications has never been made, but would be very attractive to customers that need to treat wastewater with high chemical oxygen demand (COD) in advanced MBR processes.

这个小型企业创新研究阶段I项目的更广泛的影响/商业潜力在于，它提供了一种新型的聚合物膜过滤材料，该材料可抵抗在膜生物反应器（MBRS）中处理的废水中存在的粘性有机物的结垢。 膜污染是MBR系统中遇到的主要问题，并且在现有技术方面对膜不良。与在市售MBRS中使用的常规聚合物膜相比，由提议的工程聚合物材料制成的过滤膜可能明显具有更大的结垢，易于清洁的耐药性，易于清洁，并且表现出增强的化学弹性。全球MBR应用市场正处于其早期增长阶段，没有明显的主要技术和市场领导者。提出的膜技术将高度差异化，并有望大大提高MBR的经济学和可靠性。该阶段I研究项目的技术目标是开发具有（1）高水通透性的平片膜，（2）亲水性和超接物性表面性能，（3）高机械/热/酸/碱基抵抗，（3）高机械/碱基抵抗，（4）高电阻，（4）高氧化剂。渗透率高的膜需要较低的工作压力（能量需求较低）。极度亲水性的膜具有更大的耐药性，而高度含油的膜更耐油。机械，热和化学（酸，碱，氯）耐受性对于实现侵袭性膜清洁至关重要。氧化剂的耐受性是特异性的，以使膜在高纯度氧气生物反应器（HPO-MBR）中起作用，在高纯度氧气生物反应器（HPO-MBR）中，高有机负荷在持续更高的氧化潜力（高溶解氧）培养基中保持较高。因此，具有更好的长期氧化剂耐药性的聚合物膜可以表现出更长的寿命，并且在HPO-MBR过程中降低清洁频率和停机时间。该项目旨在分子设计主干聚合物实体的侧链功能，以创建这种氧化耐受性膜。具有这些规格的聚合膜从未制定过，但是对于需要在高级MBR过程中需要高化学氧需求（COD）的废水的客户来说，这将非常有吸引力。