Enhanced rapid gravity filtration and dissolved air flotation for pre-treatment of river Thames reservoir water

被引：15

作者：

Bauer, MJ

Bayley, R

Chipps, MJ

Eades, A

Scriven, RJ

Rachwal, AJ

机构：

[1] Thames Water Utilities Ltd, Res & Dev, Reading RG2 0JN, Berks, England

[2] Thames Water Utilities Ltd, Operat Sci, Walton Adv Water Treatment Works, Walton On Thames KT12 2EG, Surrey, England

来源：

WATER SCIENCE AND TECHNOLOGY | 1998年 / 37卷 / 02期

关键词：

algae; anthracite; COCO-DAFF (R); contact filtration; dissolved air flotation; dual media filtration; hydraulic uprating; rapid gravity filtration; reservoir management; slow sand filtration;

D O I：

10.1016/S0273-1223(98)00007-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Thames Water treats approximately 2800MI/d of water originating mainly from the lowland rivers Thames and Lee for supply to over 7.3million customers, principally in the cities of London and Oxford. This paper reviews aspects of Thames Water's research, design and operating experiences of treating algal rich reservoir stored lowland water. Areas covered include experiences of optimising reservoir management, uprating and upgrading of rapid gravity filtration (RCF), standard co-current dissolved air flotation (DAF) and countercurrent dissolved air flotation/filtration (COCO-DAFF(R)) to counter operational problems caused by seasonal blooms of filter blocking algae such as Melosira spp., Aphanizomenon spp. and Anabaena spp. A major programme of uprating and modernisation (inclusion of Advanced Water Treatment: GAC and ozone) of the major works is in progress which, together with the Thames Tunnel Ring Main, will meet London's water supply needs into the 21st Century. (C) 1998 IAWQ. Published by Elsevier Science Ltd.

引用

页码：35 / 42

页数：8

共 19 条

[1]

CHIPPS MJ, 1994, IWSA IAWQ WORKSH OPT

[2]

CHIPPS MJ, 1993, P FILTECH C KARLSRUH, V1, P63

[3]

CHIPPS MJ, 1993, P INT OZONE ASS 11 W, V2, pS17

[4]

CILLIE GG, 1966, 3 INT C WAT POLL RES

[5] COUNTERCURRENT DISSOLVED AIR FLOTATION FILTRATION [J].

EADES, A ;

BRIGNALL, WJ .

WATER SCIENCE AND TECHNOLOGY, 1995, 31 (3-4) :173-178

[6]

EADES A, 1993, ICHEME RES EVENT

[7]

Glendinning D. J., 1996, J CIWEM, V10

[8]

JANSSENS JG, 1985, ROLE OZONE WATER WAS

[9]

JANSSENS JG, 1989, WATER SUPPLY, V7, pSS11

[10]

JEKEL MR, 1992, P 2 S AFR INT OZ ASS

← 1 2 →