Filters filters

Slurry characteristics filtering filtering filtering Dilute dilute... 

Optics12 Grating Filters Grating Filters Filters Filters... 

Films, anodic oxide Films, passivating Films, plastic Film theory Film wrappers Filter Filter aid Filter aids Filter fabrics Filtering centrifuges Filter media Filters... 

The advantage of single-pass over cross-flow filtration is that it is an easier system to operate and can be cost effective, particularly if the product to be filtered is expensive, because very tittle of the initial fluid is lost during filtration. However, because the flow pattern of the fluid is directly through the filter, filter life maybe too short for the fluid being filtered. The minimum flow rate needed downstream of the filter must also be considered, especially when there are time constraints to the process. In some situations it may be more advantageous to use a cross-flow system where higher flow rates may be easier to obtain. 

Cake Filters Filters that accumulate appreciable visible quantities of solids on the surface of a filter medium are called cake filters. The slurry feed may have a solids concentration from about 1 percent to greater than 40 percent. The filter medium on which the cake forms is relatively open to minimize flow resistance, since once the cake forms, it becomes the effective filter medium. The initial filtrate therefore may contain unacceptable sohds concentration until the cake is formed. This situation may be made tolerable by recycling the filtrate until acceptable clarity is obtained or by using a downstream polishing filter (clarifying type). 

Filtering devices Half or quarter mask and filter Filtering half-mask without inhalation valves Valved filtering half masks Filtering half masks Full face mask and filter Power assisted filtering device with full, half or quarter masks Power filtering device with helmet or hood 4-40... 

Cartridge filters Filters normally consisting of nonwoven V-pleated filter paper made into flat panels or cylindrical car-... 

Coated/treated filters Filters that have been coated with a chemical specific for the contaminant to be collected. The coatings enhance the collection by chemically reacting with the contaminant as the air is drawn through the filter. 

Media filters Filters that collect particulate matter on individual filter elements. 

Reverse air cleaning filters Filters that become self-cleaning by dislodging the impacted dust when the gas flow is reversed. 

Filtrier-barkeit, /. filterability, filtering property. -becher, m. filtering beaker, -beutel. 

Kerzen-docht, m. candle wick, -filter, n. candle filter, filter candle, -masse, /. candle composition. -nuss, /. candlenut. -nussol, n. candlenut oil. -stUrke, /. candle power, zundung,/. electric ignition,... 

Spent filters, filter media, and backwash involved in the treatment of the product or an exempt waste... 

The vanadium pentoxide catalyst is prepared as follows Suspend 6 g. of pure ammonium vanadate in 50 ml. of water and add slowly 7 5 ml. of pure concentrated hydrochloric acid. Allow the reddish-brown, somi-colloidal precipitate to settle (preferably overnight), decant the supernatant solution, and wash the precipitate several times by decantation. Finally, suspend the precipitate in 76 ml. of water and allow it to stand for 3 days. This treatment renders the precipitate granular and easy to filter. Filter the precipitate with suction, wash it several times with cold 5 per cent, sodium chloride solution to remove hydrochloric acid. Dry the product at 120° for 12 hours, grind it in a mortar to a fine powder, and heat again at 120° for 12 hours. The yield of catalyst is about 3-5 g. 

Air (particulate and organolead) Collection of particulate matter collected onto nucleopore filters filtered gases cryogenically trapped and thermally desorbed XRF (particulate) GC/GFAAS (gaseous) 0.3 pg/m3 0.2 ng/m3 46->90 90-100 De Jonghe et al. 19 ... 

Each serie of measurements consisted of two parallel samples with counting during and after sampling, one with the screen diffusion battery and the second as the reference sample, so that the fractional free radon daughters could be calculated. The radon daughters are collected on a membrane filter (filter diameter 25 mm, pore diameter 1.2 ym) and the decays of Po-218 and Po-214 are counted by means of alpha spectrometry with a surface barrier detector (area 300 mn ). 

Fabric filters filters made from fabric materials and used for removing particulate matter from gas streams (see Baghouse). 

Casings, caps, framework of ventilation, fan blades, air filters, filters and pumps of industrial dishwashers, softeners, washing machines, detergent product vats, parts of pumps used for handling chemicals, frames, rollers of cables, parts with film hinge, electrical components, translucent parts, cases, pipes. .. 

Polypropylenes are cost-effective polymers for casings, caps, framework of ventilation, fan blades, air filters, filters and pumps of agricultural machines, pipes. .. 

At the appropriate time points, aliquots are removed from the mixture and filtered under vacuum through GF/C filters. Filters are then washed twice with 5 ml of ice-cold buffer and processed as described above. 

Collection (liters) (1/mln) Filter Filter Absorbed Total Analysis %)... 

Fig. 1. Double glove-box system for the preparation and refining of actinide metals 1. RF heating system 2. Water cooled quartz vacuum furnace 3. Box filled with circulating nitrogen 4. -I- 5. Argon in and out filters filter 6. Stainless steel box filled with circulating argon 7. Vacuum lock chamber 8. Pump...

Autoclave. (ABC 009) serial no. (provide number) autoclave is utilized for sterilization of solution buffer vessels, filters, filter housings, closures, filling machine dosing system, and support equipment. The unit has a chamber size of (width x length x height) mm and (provide volume) liter capacity with dual interlocking doors. 

Timolol concentration in tear fluid samples was measured in the same way, but 200 pi of the diluted tear fluid in phosphate buffer were used instead of 180 pi plasma. After incubation, bound and free radioligand were separated by vacuum filtration through Whatman GF/F glass fibre filters. Filters were washed three times with 10 ml ice-cold 310 mOsm phosphate buffer, dried and counted for retained radioactivity in 5 ml of Lipoluma-Lumasolve-water (10 1 0.2) mixture using... 

A suspension of baker s yeast (p = 20kgm 3, p =0.0012 kg rn s ) is filtered with a dead-end filter (filter area = 1 m ) at a constant filtration pressure. Neglecting the resistance of the filtering medium, determine the filtration pressure difference AP to obtain 0.5 m of filtrate after 2.5 h. 

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