contact time


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contact time

A term of art referring to the length of time water is exposed to a disinfectant—e.g., chlorine contact time.
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The initial pH of the solution had the greatest effect on removal (%), followed by adsorbent dosage, adsorbent dosage-initial pH interaction, contact time, contact time-initial pH interaction, contact time-adsorbent dosage interaction and contact time-adsorbent dosage-initial pH.
[ILLUSTRATION OMITTED] Key Process Parameters Conveyer Speed: 1.25 ft/min Total Contact Time: 11.5 sec Solder Temperature: 525[degrees]F Peak Topside Temperature: 133[degrees]C Duration (ambient to wave): 5:18 Preheater Location & Type Zone #3 Zone #2 Zone #1 Set Point Set Point Set Point ([degrees]F) ([degrees]F) ([degrees]F) Top: Calrod 380 470 470 Bottom: Forced Air 330 380 380 FIGURE 4.
No significance was found at the P<0.05 level between the pre-test values and the post-test values for E/C (Wingate P=0.65; Bosco P=0.70), power (P=0.71; P=0.10), force (P=0.79; P=0.35), contact times (P=0.20; P=0.71), or maximal height (Wingate P=0.18).
Therefore, the influence of temperature on phenol adsorption was minor compared with that of dosage and contact time. Phenol adsorption on the ceramic granules can be accomplished at normal temperatures.
Compared with ternary blends with 80% PE, the role played by the PE/PA contact time in the nodule final size in the case of ternary blends with 20% PE is certainly less important because of the formation of a continuous clay interphase during mixing.
The results of the sorbents dose and contact time are given in figures 2 and 3 respectively.
3.1 Influence of contact time on dynamic interfacial tension
For bridging, contact time and preheat temperature were more important while for through-hole penetration, preheat temperature was the main contributor.
The reason that we can not get rather high acrylic acid yield with long contact time at elevated reaction temperature can be due to the occurrence of side reactions from lactic acid.
Initially available only to Boyd Coffee Company customers west of the Mississippi River, The Coffee Profiler is pre-programmed by a Boyds technician, guaranteeing quality in every cup of coffee by controlling all aspects of the brewing process including water contact time, temperature, formula, volume, dilution and bypass.
Studies demonstrated that relatively low ozone concentration (less than 1 mg/L) and short contact time (1 min) are sufficient to inactivate 99% of viruses, such as rotaviruses, parvoviruses, feline calicivirus, and hepatitis A virus (Shin & Sobsey, 2003; Thurston-Enriquez, Haas, Jacangelo, & Gerba, 2005).