Testing of biological aerated filter (BAF) media

被引：17

作者：

Kent, TD

Fitzpatrick, CSB

Williams, SC

机构：

[1] CRANFIELD UNIV,SCH WATER SCI,CRANFIELD MK43 0AL,BEDS,ENGLAND

[2] THAMES WATER UTIL LTD,RES & DEV,READING RG2 0JN,BERKS,ENGLAND

来源：

WATER SCIENCE AND TECHNOLOGY | 1996年 / 34卷 / 3-4期

基金：

英国工程与自然科学研究理事会;

关键词：

backwashing; biological aerated filter (BAF); biomass; collapse-pulsing; filter media; minimum fluidisation velocity (V-mf);

D O I：

10.1016/0273-1223(96)00600-2

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The cost of filter media contributes a significant proportion of the initial capital outlay in wastewater treatment by biological aerated filters (BAFs). Media characteristics also affect day to day running costs such as those involved in backwashing. To allow an informed choice relating to filter media and their prospective uses a number of standards have been produced, most recently the British Effluent and Water Association (BEWA) standard. The aim of this study was to investigate a number of granular media using the BEWA standard in order to determine their suitability for BAFs. All the media samples investigated appear suitable for use as BAF media with one in particular having all the necessary characteristics e.g. low density, high specific surface area and resistance to attrition. Copyright (C) 1996 IAWQ. Published by Elsevier Science Ltd.

引用

页码：363 / 370

页数：8

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