Innovations in MF/UF membrane technologies: Development and scale-up of electrically conductive membrane coatings and recycled membranes for wastewater reuse

拟议的研究旨在开发膜技术的创新，并将这些创新加速到工业适用性的中试规模。该项目分为三个部分：1。防止表面污染的导电膜2.回收污染的膜用于非饮用再利用应用和3。材料放大和两者的中试规模测试。在第1部分中，重点是导电防污膜的操作条件。我们将评估导电MF和UF膜的抗胶体和抗生物污染能力，这些膜是由de Lannoy实验室中的几种成熟技术合成的。我们将进一步研究操作条件（施加的电压强度，极性，频率）如何影响导电膜的抗污染能力，并开发模型来预测最佳操作条件。在第2部分中，重点是膜材料的改性。通过蚀刻旧的/用过的微滤（MF）、超滤（UF）和反渗透（RO）膜表面，将污染的膜回收和再利用。这些污染、腐蚀和回收的膜将用于分离城市废水。渗透物将进行紫外线消毒处理，产品水将在非饮用水再利用应用中进行可行性评估。在拟议研究的第3部分中，我们将重点研究导电和回收膜的放大。我们将建立方法来扩大导电膜的应用在颇尔的膜生产线。规模化生产包括共挤出涂覆技术，以在MF和UF膜上涂覆导电表面层。我们还将回收污染的膜组件，并将其用于特洛伊公司运营的绿道污水处理厂的中试规模系统。我们将把回收的膜组件流出的水与在线紫外线消毒相结合，并评估水质是否适用于非饮用水再利用应用。

The proposed research aims to develop innovations in membrane technologies and accelerate those innovations to the pilot-scale for industrial applicability. The project is divided into three components: 1. Electrically conductive membranes to prevent surface fouling 2. Recycling fouled membranes for non-potable reuse applications and 3. Material scale-up and pilot-scale testing of both. In part 1, the focus is on operating conditions of electrically conductive anti-fouling membranes. We will evaluate the anti-colloidal and anti-biofouling capabilities of electrically conductive MF and UF membranes, synthesized from several established techniques in the de Lannoy lab. We will further investigate how operating conditions (applied voltage strength, polarity, frequency) impact the anti-fouling abilities of electrically conductive membranes and develop models to predict the optimal operating conditions. In part 2, the focus is on membrane material modifications. Fouled membranes will be recycled and reused by etching old/used microfiltration (MF), ultrafiltration (UF), and reverse osmosis (RO) membrane surfaces. These fouled, etched and recycled membranes will be used to separate municipal wastewaters. The permeate will be treated with UV disinfection and the product water will be evaluated for viability in non-potable reuse applications. In part 3 of the proposed research we will focus on investigating scaling-up of electrically conductive and recycled membranes. We will establish methods to scale up electrically conductive membranes for applications in Pall's membrane production line. Scale-up production includes co-extrusion coating techniques to coat MF and UF membranes with electrically conductive surface layers. We will also recycle fouled membrane modules and use them in the pilot scale systems currently at the Greenway wastewater treatment plant operated by Trojan. We will couple the effluent from the recycled membrane modules to inline UV disinfection and assess the water quality for its applicability to non-potable reuse applications.