Declining‐Rate Filters: Regulatory Aspects and Operating Results

Cornwell, David A.; Bishop, Mark M.; Dunn, Howard J.

doi:10.1002/j.1551-8833.1984.tb05456.x

Cited by 4 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Receiving required turbulent head losses can be achieved by slightly disabling the full opening of butterfly valves located at the outflows from each of individual filters [21]. In this way the rule of operation is the same as for installing orifices but any changes require less maintenance.…”

Section: Principles Of Constructionmentioning

confidence: 99%

The progression of flow rates in variable declining rate filter systems

Dąbrowski¹

2006

Acta hydrochim. hydrobiol.

View full text Add to dashboard Cite

It has been demonstrated that the mathematical model of variable declining rate filters developed by Di Bernardo may be described by (z + 1) non-linear equations, where z is the number of filters in a bank. Three approximate solutions to this system of equations have been developed and then verified by comparison with numerical solution and published experimental data. Two of these solutions appeared to be very accurate, while the third showed higher, but still acceptable errors of calculation. According to this approximation, flow rates through filters are elements of a geometric progression.

show abstract

Section: Principles Of Constructionmentioning

confidence: 99%

The progression of flow rates in variable declining rate filter systems

Dąbrowski¹

2006

Acta hydrochim. hydrobiol.

View full text Add to dashboard Cite

show abstract

Design Options for Water Filtration

Monk¹

1987

Journal AWWA

View full text Add to dashboard Cite

Options for a gravity filtration unit must be carefully evaluated before an optimum design can be finalized. This article explains a number of alternatives, identifies many of their advantages and disadvantages, and reviews the interrelationship of the components of a filtration system so that alternatives can be matched with the peculiarities of each project under consideration. Examples are provided to demonstrate these concepts.

show abstract

Some Theoretical and Conceptual Views of Filtration

Amirtharajah¹

1988

Journal AWWA

View full text Add to dashboard Cite

This article relates the fundamental concepts of granular media filtration to the major factors influencing the overall quality of filtered water. In present-day theory, the particle removal mechanisms of transport, attachment, and detachment are described in two different modeling approaches: (1) phenomenological theories, and (2) trajectory theories. These theories are coupled with empirical evidence to stress the importance of chemical destabilization, initial degradation and filter ripening, minimization of rate changes, and the use of polymers for producing high quality water. JOURNAL AWWA 36 RESEARCH AND TECHNOLOGY

show abstract

Declining‐Rate Filters: Regulatory Aspects and Operating Results

Cited by 4 publications

References 2 publications

The progression of flow rates in variable declining rate filter systems

The progression of flow rates in variable declining rate filter systems

Design Options for Water Filtration

Some Theoretical and Conceptual Views of Filtration

Contact Info

Product

Resources

About