a study on the performance of limestone roughing filter - ePrints@USM
a study on the performance of limestone roughing filter - ePrints@USM
a study on the performance of limestone roughing filter - ePrints@USM
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LIST OF SYMBOLS AND ABBREVIATIONS<br />
The following tabulati<strong>on</strong> lists <strong>the</strong> symbols used in this <strong>the</strong>sis. Because <strong>the</strong><br />
alphabet is limited, it is impossible to avoid using <strong>the</strong> same letter to represent more than<br />
<strong>on</strong>e c<strong>on</strong>cept. Since each symbol is defined when it is first used, no c<strong>on</strong>fusi<strong>on</strong> should<br />
result.<br />
Symbol<br />
APHA<br />
mm<br />
NTU<br />
TSS<br />
BOD<br />
MPN<br />
DO<br />
ha<br />
mg<br />
s<br />
ppm<br />
Q<br />
lps<br />
HRF<br />
DRF<br />
URF<br />
m<br />
SSF<br />
Descripti<strong>on</strong>s<br />
American Public Health Associati<strong>on</strong><br />
milimeter<br />
Nephelometric Turbidity Unit<br />
Total suspended solids<br />
Biochemical oxygen demand<br />
Most probable number<br />
Dissolved oxygen<br />
hectare<br />
miligram<br />
sec<strong>on</strong>d<br />
Part per milli<strong>on</strong><br />
Volumetric flow rate<br />
Liter per sec<strong>on</strong>d<br />
Horiz<strong>on</strong>tal flow <strong>roughing</strong> <strong>filter</strong><br />
Down flow <strong>roughing</strong> <strong>filter</strong><br />
Up flow <strong>roughing</strong> <strong>filter</strong><br />
meter<br />
Slow sand <strong>filter</strong><br />
xx
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