Characterization of Membrane Fouling for Optimization of Membrane Filtration Processes for Improved Water Recovery

食品加工业消耗大量的水，因此产生了大约相同数量的废水。为了实现水处理系统的关闭，从而减少**环境对水的需求，水回收已被广泛应用于工业，包括食品加工业。由于**膜分离的优势，**膜技术在水回收和再利用中发挥着主导作用。Amec Foster Wheeler Environment&Infrastructure(FWEI)是AMEC**Foster Wheeler America Ltd的一个部门，受聘为一家大型食品加工公司设计和优化水回收厂。膜再生水处理厂面临的主要挑战是膜污染，膜污染会恶化膜的性能，降低工艺效率，增加膜清洗中的化学使用量，从而降低膜的使用寿命。拟议的研究将研究**污染物的性质，并确定来自大型食品加工水回收厂的超滤(UF)和反渗透(RO)**膜的膜污染机理，并最终制定具有成本效益的**膜污染清洗策略，以提高水回收效率，降低运营成本和环境**影响。预计这项研究将产生可在全规模膜过滤工厂实施的膜基水和废水**处理方面的新知识，并将增强AMEC FWEI工艺工程师的专业知识和**知识，从而在加拿大和世界的**膜水和废水净化方面提供出色和改进的咨询服务。

Food processing industry consumes a large amount of water and thus generates approximately the same amount**of wastewater. To achieve water treatment system closure and thus reduce water demand from the**environment, water reclamation has been widely used in industries, including food processing industry.**Membrane technology plays a dominant role in water reclamation and reuse, due to the advantages of**membrane separations. AMEC Foster Wheeler Environment & Infrastructure (FWEI), a division of AMEC**Foster Wheeler Americas Ltd has been hired to design and optimize a Water Reclamation Plant for a major**food processing company. The major challenges in membrane-based water reclamation plants is membrane**fouling, which deteriorates membrane performance, decreases process efficiency, increases chemical usages in**membrane cleaning, and thus reduces membrane lifespan. The proposed study will examine the nature of**foulants and identify the mechanisms of membrane fouling of ultrafiltration (UF) and reverse osmosis (RO)**membranes from a large scale food processing water reclamation plant and ultimately develop cost effective**membrane fouling cleaning strategies to improve water recovery and reduce operating costs and environmental**impact. It is anticipated that this study will generate new knowledge in membrane-based water and wastewater**treatments that can be implemented in full-scale membrane filtration plants and will enhance the expertise and**knowledge of AMEC FWEI process engineers and thus provide excellent and improved consulting service in**membrane water and wastewater purification in Canada and the world.