for hydrophobic membranes means that we can apply 1 bar pressure differentials without causing the water to permeate as a liquid; on the contrary, will allow water vapor through the membrane...

in the presence of fresh water or as soon as the CO2 content rises above 15 mg · L–1. However, this remains a superficial attack and will not jeopardise structural longevity. In effect, the bicarbonates produced...

be treated. The concentration of hydrocarbons in ballast water may be as high as 100 mg/L. During cleaning operations, a massive quantity of detergent is used (0.1 to 3.0 g/L). Hydrocarbon emulsions...

. Table 1 provides groundwater properties based on the main analytical parameters. In particular, the following needs to be noted: good bacteriological purity, low turbidity, constant temperature...

plant (Belgium) for the refinery of Tirlemon. Flow rate: 30 m3· h–1. Removing colour from sugar beet syrup. Three twin columns dairies Demineralisation and colour removal process applied to diluted...

that a residual chlorine level be maintained in order to prevent bacterial growth. However, the concentration level of residual chlorine must not exceed 0.5-1 mg/L in order to avoid the toxic effects on sensitive...

gravel and/or sand in "prefilters" that might be preceded by “roughing” systems) before being delivered to "polishing" filters through which it percolated at the rate of approximately 5 m · d–1 (in other...

: concentration of the ion to be fixed and that remains in the treated water. It is expressed in mg · L–1, mg · L–1, milliequivalents/litre, sometimes as a percentage in relation to the influent. Breakdown...

section of the openings (including leaks) and Q extracted flow rate, it is agreed that there will be no backflow of air from inside the rooms towards the outside when V = Q·S–1 is > 2 m·s–1...

or inhibition of vital metabolisms. The main characteristics of oxidizing biocides are: a fast action rate of between 1 and 15 minutes depending on water quality; a continuous injection; an action...

and s is make-up water salinity. Figure 12. Open recirculating circuit flow (concentration) balance In a open recirculating cooling circuit, C can vary from 1 to 6 or even up to 10. When...

– Mexico) – Flow: 6,000 m3.d-1 Consequently, the inclusion of homogenising tanks becomes essential. These tanks are also used to feed treatments, especially biological treatments, should production...

. Given the network rate (better than 100 Mb), no data is lost even in the event of an avalanche of alarms. Figure 13. Valenton (France) architecture Figure 14. Architecture niveau 1...

, sub-section 33.3.1.6. The UN N4 test provides information on the sludge's aptitude to self heat through oxidation in air at temperatures of 100°C, 120°C and 140°C in a cube-shaped, sheet steel cage...