Design, Prototyping, and Assessment of a Wastewater Closed-Loop Recovery and Purification System

Sustainability

Cristina Mora¹  Francesco Pilati¹  Mauro Gamberi¹  Marco Bortolini¹  Alberto Regattieri¹ 

[1] Department of Industrial Engineering, Alma Mater Studiorum—University of Bologna, Viale del Risorgimento, 2, Bologna 40136, Italy;

关键词: wastewater purification;    food and beverage industry;    water reuse;    water saving;    ultra-filtration;    economic assessment;    life-cycle-assessment;    EU project;   

DOI  :  10.3390/su9111938

来源: DOAJ

【 摘 要 】

Efforts to decrease the water use within industry are mandatory to pursue product and process sustainability. Particularly, the European Union (EU) is at the top level for water consumption in industry, while some sectors, such as the food and beverage (F&B), are highly water-intensive with hundreds of liters per hour of consumed and, then, drained water. This article provides a systematic overview of the most innovative insights coming from an EU Eco-Innovation project dealing with greening the F&B industry through the design, prototyping, technical, economic, and environmental assessment of a wastewater closed-loop recovery and purification system. The system, tailored for a standard mid-size F&B company using 2–3 billion L/year of raw water, collects, purifies and recirculates the key produced wastewater streams with an overall recovery efficiency of about 56%. The proposed purification technology comes from the most efficient combination of membrane-based filtration methods, reverse osmosis (RO), and ultraviolet modules. Evidence from the technical design, full-scale on-site technology prototyping, net-present-value (NPV) analysis and system life-cycle-assessment (LCA) are presented concluding about the convenience of adopting the proposed solution to reduce costs and impacts on the environment.

【 授权许可】

Unknown