APPLICATION OF FLOATING MEDIUM FILTER IN WATER AND WASTE-WATER TREATMENT WITH CONTACT-FLOCCULATION FILTRATION ARRANGEMENT

被引：23

作者：

NGO, HH ^{[1
]}

VIGNESWARAN, S ^{[1
]}

机构：

[1] UNIV TECHNOL SYDNEY,SCH CIVIL ENGN,BROADWAY,NSW 2007,AUSTRALIA

来源：

WATER RESEARCH | 1995年 / 29卷 / 09期

关键词：

FLOATING MEDIUM FILTER; CONTACT-FLOCCULATION FILTRATION; FIRST STAGE FILTER; WATER TREATMENT; WASTE-WATER TREATMENT; STATIC FLOCCULATOR;

D O I：

10.1016/0043-1354(95)00016-E

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Conventional granular filtration, although successfully used in water treatment and tertiary wastewater treatment, suffers from some disadvantages such as limited retention capacity and high energy requirement for backwashing. Use of floating filter medium overcomes these shortcomings especially when direct filters are used in the treatment plants. A laboratory-scale study carried out indicated that the floating medium filter with downflow direct filter arrangement was a good pretreatment unit to reduce the pollutant load in rapid filters used as polishing filter units. Due to its ability to form uniform micro-flocs of the order of 26-40 mu m throughout the filter run, the Boating medium filter can serve as an excellent static flocculator.

引用

页码：2211 / 2213

页数：3