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，因此产生大约相同数量的废水。为了实现水处理系统的封闭，从而减少对**环境的用水需求，水回收已广泛应用于工业，包括食品加工业。由于膜分离的优势，膜技术在水的回收和再利用中起着主导作用。中AMEC福斯特惠勒环境与基础设施（FWEI）是中AMEC福斯特惠勒美洲有限公司的一个部门，为一家大型食品加工公司设计和优化一个水回收工厂。膜基水回收厂面临的主要挑战是膜污染，它会使膜性能恶化，降低工艺效率，增加膜清洗时的化学用量，从而缩短膜的使用寿命。该研究将研究**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)**膜的膜污染机制，最终制定具有成本效益的**膜污染清洁策略，以提高水的回收率，降低运营成本和环境影响。预计本研究将产生膜基水和废水处理的新知识，可在全面的膜过滤工厂中实施，并将提高中AMEC FWEI工艺工程师的专业知识和知识，从而在加拿大和世界范围内提供优质和改进的膜水和废水净化咨询服务。

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.