Prefilters

Word PREFILTERS
Character 10
Hyphenation N/A
Pronunciations N/A

Definitions and meanings of "Prefilters"

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Here you will find one or more explanations in English for the word prefilters. Define prefilters, prefilters synonyms, prefilters pronunciation, prefilters translation, English dictionary definition of prefilters.

Synonyms and Antonyms for Prefilters

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The word "prefilters" in example sentences

Another disadvantage is that chlorine in municipal water supplies is corrosive to the RO filters, so activated charcoal prefilters must be changed fairly often if your tap water contains chlorine. ❋ Unknown (2009)

Our house is on an in-ground pump system, so our well water does not contain chlorine, which extends the life of the charcoal prefilters. ❋ Unknown (2009)

They come with all of the prefilters, pumps, tubing and fittings needed to connect it to your drainage and irrigation systems, and also with a remote control so you can operate the pump from anywhere nearby. ❋ Unknown (2008)

This manual mainly focuses on the design, construction and operation or prefilters and roughing filters. ❋ Unknown (1996)

As different fractions of rough filter material are generally used in prefilters, they are called roughing filters. ❋ Unknown (1996)

After having given enough evidence in favour of prefilters and roughing filters, this manual will conclude with some strong statements on rural water supplies in developing countries, and will emphasise some weak aspects pertaining to the implementation of water treatment plants. ❋ Unknown (1996)

However, the roughing filter technology continued to be developed in the following years, and different types of prefilters and roughing filters were studied and tested. ❋ Unknown (1996)

Studies on design and performance of prefilters functioning under tropical water quality conditions have been, and are still being, conducted by various research groups. ❋ Unknown (1996)

Raw water turbidity of 500 NTU is now reduced to 60 -180 NTU by the upflow roughing filters, to 12 - 30 NTU by the second prefilters, and the filtrate of the slow sand filters is now always less than 5 NTU. ❋ Unknown (1996)

A general layout of different prefilters is given in Fig. 24, the main differences in use and configurations of the prefilters are summarised in Table 2, and the detailed filter design and operation explained in Chapters ❋ Unknown (1996)

The treatment plants, monitored for about half a year, revealed a good performance of the prefilters and enabled slow sand filter runs of several months [34]. ❋ Unknown (1996)

Declining filter operation rate of roughing filters to supply slow sand filters with a constant flow is not advisable due to the relatively small water volume stored in the prefilters. ❋ Unknown (1996)

Part 2 elucidates design, construction and operation characteristics of different prefilters and roughing filters. ❋ Unknown (1996)

Filter maintenance is not very demanding as the prefilters do not include any mechanical parts apart from the valves. ❋ Unknown (1996)

Furthermore, prefilters and roughing filters can improve the bacteriological water quality; i.e., a 1-2 log reduction of faecal coliforms has often been recorded. ❋ Unknown (1996)

Design and application of prefilters vary considerably. ❋ Unknown (1996)

Raw water conditioned by prefilters and roughing filters will usually meet slow sand filter requirements. ❋ Unknown (1996)

However, this procedure should be applied only to slightly turbid raw water carrying dissolved organic matter which will not be reduced by the prefilters but used for the development of the "Schmutzdecke" in the slow sand filter. ❋ Unknown (1996)

However, biochemical reactions might also occur in the prefilters, especially if the raw water contains high organic loads. ❋ Unknown (1996)

The Andean experience reveals that gravel prefilters enhance slow sand filter. operation and increase the overall plant performance. ❋ Unknown (1996)

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