PROCESS ANALYSIS OF OVERLAND-FLOW TREATMENT OF WASTE-WATER

被引：0

作者：

OVERMAN, AR

ANGLEY, EA

SCHANZE, T

WOLFE, DW

机构：

[1] CAMP DRESSER & MCKEE INC,MAITLAND,FL

[2] FLORIDA DEPT ENVIRONM REGULAT,TALLAHASSEE,FL

来源：

TRANSACTIONS OF THE ASAE | 1988年 / 31卷 / 05期

关键词：

Flow of Water - Mass Transfer--Analysis - Sanitary Engineering--Testing;

D O I：

暂无

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Treatment performance of overland flow for total suspended solids (TSS), biological oxygen demand (BOD) and Organic N was analyzed through the film transfer model. Average water velocity was used as the key input parameter. At low velocity mass transfer from the bulk stream to the organic mat was diffusion limited, while surface kinetics controlled the upper limit on mass transfer. Rates of reduction were similar for TSS and BOD, slower for organic N and faster for heavy metals. Flow processes were also characterized by Reynolds and Damkohler numbers. The Damkohler number is the ratio of characteristic times of convection and reduction. Values ranged 1 to 6 for several studies reviewed.

引用

页码：1375 / 1382

页数：8