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Prototype Study of Uniform Modular Filter Components
Author(s) -
Packard Ver L.
Publication year - 1965
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1965.tb01461.x
Subject(s) - backwashing , filter (signal processing) , modular design , inflow , engineering , environmental science , computer science , mechanical engineering , geology , electrical engineering , operating system , oceanography , inlet
This article discusses a prototype study of a new principle in filter backwashing control that allows for better control of filter media fluidity, longer net filter runs, and better assurance of effluent quality uniformity. The study showed advantages over the hydraulic conditions in conventional filters and led to the installation of a filter bay of 119 uniform modular “egg crate” filter components in September 1964. The prototype study carried the search for better filter medium control and improved backwash conditions that would produce uniform bed fluidity one step further than other investigations, incorporating the principle of backwash control by regulating the distribution of wash water out of the filter, instead of using the conventional method of controlling wash water inflow. It moved the control from the bottom to the top of the bed.