Particle size distribution in an effluent from an advanced primary treatment and its removal during filtration

被引：21

作者：

Landa, H

Capella, A

Jimenez, B

机构：

来源：

WATER SCIENCE AND TECHNOLOGY | 1997年 / 36卷 / 04期

关键词：

advanced primary treatment; helminths eggs; particle size; rapid filtration;

D O I：

10.1016/S0273-1223(97)00435-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The filtration efficiency of an Advanced Primary Treatment System (APT) was annualized in terms of suspended solids concentration, particle size distribution and helminth eggs counts. A study was carried out on three one-metre deep sand filters with a specific size (ES) of 0.6, 0.8 and 1.2 mm. More than 50 runs were done with operating rate of 7, 10, 12 and 15 m/h. Basic design-related information was obtained for the APT system. A filter with a 1.2 mm ES provided the best effluent, with 0.1 Helminth egg/L. The average suspended solid concentration in the effluent was 39 mg/L. The most recommendable filtration rate was 10 m/h with a run time of 33 h. A study of the particle distribution was made for each step of the process based on size. (C) 1997 IAWQ. Published by Elsevier Science Ltd.

引用

页码：159 / 165

页数：7

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