||Recommended practice for the use of Parshall flumes and Palmer-Bowlus flumes in wastewater treatment plants /
||National Bureau of Standards (NEL), Gaithersburg, MD. Fluid Engineering Div.;Municipal Environmental Research Lab., Cincinnati, OH.
|| Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Parshall flumes. ;
Sewage treatment ;
Flow rate ;
Open channel flow ;
Flow measurement ;
Parshall flumes ;
Performance evaluation ;
Sewage treatment plants ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||vi, 57 p. : ill. ; 28 cm.
Parshall and Palmer-Bowlus flumes are suitable for in-plant open channel flow measurement of raw wastewater and treated effluent as well as wastewater in intermediate stages of treatment. Parshall flumes are empirical devices which must be fabricated and installed according to specific requirements in order to yield the 'standard' values of discharge. The discharge of Palmer-Bowlus flumes can be determined analytically within specified error limits provided that described criteria for construction and installation are met. The accuracy of a flume-based measuring system depends upon a combination of the accuracies of the flume itself and the secondary instrumentation. The basic uncertainty of properly constructed and installed flumes is about + or - 3 percent. Suggested methods of calibrating and monitoring the performance of the flumes and secondary instruments are described.
"EPA-600/2-84-186." "November 1984." "EPA 78-D-X0024-1." "PB85-12275." "Project officer, Walter W. Schuk."