The coupled trickling filter-activated sludge process : design and performance /

Mode of access: Internet.

Report on tests of welding filter plates /

Mode of access: Internet.

Fine solids removal following combined chemical-trickling filter treatment /

Mode of access: Internet.

Wastewater stabilization lagoon : intermittent sand filter systems /

Mode of access: Internet.

High daily rate trickling filter performance : under the direction of the Board of State Health Commissioners, Upper Mississippi River Basin Sanitaton Agreement /

Includes bibliographical references.

Long term recharge of trickling filter effluent into sand /

Mode of access: Internet.

A preliminary investigation of the effectiveness of a diatomite filter in the removal of radioactive phosphorus from water /

"November 1, 1951."

Krylov subspace methods for solving large unsymmetric linear systems /

"COO-2383-0077"--P. 1 of cover.

Evaluation of filter flammability and filter bank fire detection systems /

"U.S. Atomic Energy Commission Contract AT(29-1)-1106."

Designs of filter plants, January 1900.

Mode of access: Internet.

Digital filter synthesis

"Cornell Aeronautical Laboratory, Inc. has assigned Report no. XA-2177-B-1 to this document."

Effects of filter response on analysis of aircraft noise data /

Mode of access: Internet.

Operator's manual : tester, airflow, gas-particulate filter unit, M39 (NSN 6680-00-436-4212).

"15 November 1983."

Organizational maintenance repair parts and special tools lists : filter units, gas-particulate, EMD and GED, 300 cfm, ABC-M6, FSN 4240-368-6127, FSN 4240-368-6126 and ABC-M6A1, FSN 4240-889-2317, FSN 4240-889-2316.

"26 October 1972."

Organizational, direct support, and general support maintenance repair parts and special tools lists : air conditioner, horizontal, compact, 36,000 BTUH, 208 volt, 3 phase, 400 hertz, NSN 4120-01-063-8182 (American Air Filter Co., model CH436-1), 208 volt, 3 phase, 50/60 hertz, NSN 4120-01-063-07573 ....

"15 May 1981."