Stormwater treatment using an ultrafiltration membrane and pulsatile fluid flow

IF 1.6 3区环境科学与生态学 Q3 WATER RESOURCES

Urban Water Journal Pub Date : 2023-03-09 DOI:10.1080/1573062x.2023.2183136

Saida Kaykhaii, Inga Herrmann, Annelie Hedström, Kerstin Nordqvist, Maria Viklander

引用次数: 0

Abstract

A polymeric ultrafiltration (UF) membrane was used for stormwater treatment, with the focus on evaluating the increase in the membrane process productivity by adding pulsatile fluid flow to UF membrane treatment. Sedimentation and sieving were used as pre-treatment. The result showed that increasing the pulse frequency from 0 to 4 Hz increased productivity from −6.6 to 82 LMH. UF membrane removed suspended solids, oil and turbidity below detection limit. The UF membrane also separated total coliforms, E. coli and P. aeruginosa below detection limit. Total organic carbon (TOC) was reduced by between 81%, in average. In addition, the UF membrane was able to reduce BOD7 and COD to below 7 mg/L in the permeate. According to the US EPA, WHO, and national regulations in Canada, Japan, and South Korea, treated stormwater can be used for flushing toilets and streets irrigation and agricultural use.

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雨水处理采用超滤膜和脉冲流体流动

采用聚合物超滤(UF)膜处理雨水，重点评价了在超滤膜处理中加入脉动流体对膜工艺生产率的提高。前处理采用沉降和筛分。结果表明，将脉冲频率从0增加到4 Hz，生产率从−6.6提高到82 LMH。超滤膜对悬浮物、油和浊度的去除均低于检出限。超滤膜对总大肠菌群、大肠杆菌和铜绿假单胞菌的分离也低于检出限。总有机碳(TOC)平均减少81%。此外，超滤膜还能将渗透液中的BOD7和COD降至7 mg/L以下。根据美国环保署、世界卫生组织以及加拿大、日本和韩国的国家法规，经过处理的雨水可用于冲洗厕所、街道灌溉和农业用途。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Urban Water Journal WATER RESOURCES-

CiteScore

4.40

自引率

11.10%

发文量

101

审稿时长

3 months

期刊介绍： Urban Water Journal provides a forum for the research and professional communities dealing with water systems in the urban environment, directly contributing to the furtherance of sustainable development. Particular emphasis is placed on the analysis of interrelationships and interactions between the individual water systems, urban water bodies and the wider environment. The Journal encourages the adoption of an integrated approach, and system''s thinking to solve the numerous problems associated with sustainable urban water management. Urban Water Journal focuses on the water-related infrastructure in the city: namely potable water supply, treatment and distribution; wastewater collection, treatment and management, and environmental return; storm drainage and urban flood management. Specific topics of interest include: network design, optimisation, management, operation and rehabilitation; novel treatment processes for water and wastewater, resource recovery, treatment plant design and optimisation as well as treatment plants as part of the integrated urban water system; demand management and water efficiency, water recycling and source control; stormwater management, urban flood risk quantification and management; monitoring, utilisation and management of urban water bodies including groundwater; water-sensitive planning and design (including analysis of interactions of the urban water cycle with city planning and green infrastructure); resilience of the urban water system, long term scenarios to manage uncertainty, system stress testing; data needs, smart metering and sensors, advanced data analytics for knowledge discovery, quantification and management of uncertainty, smart technologies for urban water systems; decision-support and informatic tools;...