Increasing wastewater treatment plant capacity by cellulose recovery with a rotating belt filter : lab and plant-wide modelling studies

通过旋转带式过滤器回收纤维素来提高废水处理厂的处理能力：实验室和全厂建模研究

• 批准号: 491558-2015
• 负责人: Vanrolleghem, Peter
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586963
• 关键词: Increasing; wastewater; treatment; plant; capacity

Increased population pressure in urban areas and the associated increase in hydraulic and organic loads causes wastewater facilities to be pushed closer to their design capacities. However, retrofitting an existing plant to increase its capacity is not easily done as space requirements and capital investments are typically large. Rotating Belt Filters (RBFs) represent an innovative small footprint alternative with a lower capital cost and relative ease of installation. An RBF works as a sieve and can be installed as a pre-treatment to remove some of the incoming waste load thus reducing the pressure on the subsequent treatment steps. Moreover, the solids that are retained by the RBF can be potentially recovered for either reuse or conversion to energy. Cellulose has shown great potential in this respect as it is removed in great quantities by RBFs. This project aims to assess the feasibility of retrofitting overloaded treatment plants with an RBF taking into consideration plant-wide performance improvement, capex costs as well as the potential for resource and energy recovery. In order to accomplish these goals a plant-wide modelling study is proposed. Trojan Technologies with their detailed knowledge on the practical operation and modelling of RBFs will work together with Université Laval's research team modelEAU who have a vast experience with full-plant wastewater treatment modelling, to develop a model that is able to describe the fate of cellulose throughout a treatment plant. Subsequently this model will be applied to compare plant extension with an RBF to conventional retrofitting strategies in order to obtain a decision making tool to support future investments.

城市地区人口压力的增加以及相关的水力和有机负荷的增加， 废水处理设施应更接近其设计能力。然而，改造现有工厂， 增加其容量并不容易，因为空间需求和资本投资通常很大。 旋转带式过滤器（RBFs）是一种创新的占地面积小的替代方案，具有较低的资本成本， 安装相对容易。径向基函数作为一个筛子，可以安装作为一个预处理，以消除一些 引入的废物负荷因此降低了对后续处理步骤的压力。此外， 被RBF保留的废物可以潜在地回收用于再利用或转化为能量。纤维素具有 在这方面显示出很大的潜力，因为它被RBFs大量去除。 本项目旨在评估改造超载处理厂与径向基函数的可行性， 考虑工厂范围内的绩效改进、资本支出成本以及资源和 能量回收为了实现这些目标，提出了一个工厂范围内的建模研究。木马 技术与他们的详细知识的实际操作和建模的RBFs将工作 与拉瓦尔大学的研究团队modelEAU一起， 废水处理建模，开发一个模型，能够描述整个过程中纤维素的命运， 处理厂随后，该模型将被应用于比较工厂扩展与RBF， 传统的改造战略，以获得决策工具，以支持未来的投资。