共 7 条
Treatment of spent filter backwash water from drinking water treatment with immersed ultrafiltration membranes
被引:7
作者:
Curko, Josip
[1
]
Mijatovic, Ivan
[1
]
Rumora, Dean
[2
]
Crnek, Vlado
[1
]
Matosic, Marin
[1
]
Nezic, Mladen
[3
]
机构:
[1] Univ Zagreb, Fac Food Technol & Biotechnol, Zagreb 10000, Croatia
[2] Almes Eko Ltd, Dept Engn, Rijeka 51000, Croatia
[3] Istarski Vodovod Ltd, Res Dept, Buzet 52420, Croatia
关键词:
Ultrafiltration;
Water reuse;
Spent filter backwash water;
Drinking water;
D O I:
10.1080/19443994.2013.774142
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
The purpose of this study was to investigate characteristics of treatment of spent filter backwash water (SFBW) from two full-scale drinking water treatment plants (WTPs) with immersed ultrafiltration membranes in order to achieve reuse of permeate. During this study, 10% of daily generated SFBW from the treatment plants in Croatia were treated on two pilot-scale UF plants. Three different types of immersed membranes were employed and operated with fluxes, which ranged from 10 to 54L/m(2) h in two continuous experiments, which lasted 75 and 96days. During both experiments, transmembrane pressure, flux, and turbidity of filtrate were constantly measured. Rate of membrane fouling was very slow, and no chemical cleaning was needed but the membranes were regularly relaxed. Turbidity of permeate was always below 0.5NTU. Results confirmed that permeate could be reused either for backwashing of sand filters, or as a source of raw water for drinking water treatment process.
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页码:4901 / 4906
页数:6
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