backwash


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backwash

The reversal of the direction of a usual pattern of flow.
References in periodicals archive ?
This study is limited by having a small sample size, by being a convenience sample, and by using backwash collected from pools with a single filter medium (i.
The resulting report finds both types of auxiliary backwash produces a cleaner media than the control filter, analyzes the annual costs of each system, and identifies site-specific capital cost factors for utilities to consider.
The project name is the Falkenburg AWWTP Backwash Blowers.
HAS 6 STYLING STATIONS; TWO EUROPEAN SHAMPOO BACKWASH UNITS; A SEPARATE FACIAL & SKIN ROOM; AND A MANICURE AREA WITH SPA CHAIR.
Tenders are invited for 2015 Backwash Solids Dredging & Dewatering.
Elements of the treatment system include high rate coagulation mixers, gravity filters with granulated activated carbon-over-sand, a backwash pumping and treatment system, high service pumps, a clear well, a 23-million-gallon covered reservoir, a sludge disposal system and an emergency electrical generator system.
Irwin is the inventor of the patented Backwash Production Unit ("BPU") and Thermal Pulse Unit ("TPU"), and he is currently co-owner of BI-Comp, L.
The project is nearing completion and the shutdown is necessary to ensure the installation of backwash pumps which require 10 hours to complete.
While the water coming through faucets has an acceptable level of chloride, high amounts of the salt are swept away in the backwash, Preston said.
This reduces the frequency of the backwash cycles and also the volume of water used to backwash.
The Work included in this Invitation for Bids consists of furnishing all labor, materials, equipment and incidentals required to perform rehabilitation services to the Automatic Backwash Filters (ABW) No.
The Pharaoh's motivation and emotions are clear: a natural attachment to his slaves and his authority, fury at the insolence of the Hebrew upstarts, grief at the death of his firstborn, a backwash of vengeance and a final devastation.