Lotte Chemical Corporation

Daniel Eumine Suk

Gyu Hong Min

Jin Min Kim

Young Lim Koo

Jong Sang Park

Fufang Zha

Byung Kook Hwang

Jihye Kim

Byung-Kook Hwang

An aerator device, a filter system including an aerator device, and a method of aerating a filter using an aerator device. An aerator device includes a housing having an interior cavity; a first plate in the interior cavity and defining a first cavity portion and a second cavity portion thereof, the first plate being spaced apart from a top wall of the housing to define a first opening through which the first cavity portion and the second cavity portion are in communication; and a second plate defining a first chamber and a second chamber of the second cavity portion, the first chamber and the second chamber being in communication with each other below a lower end of the second plate, the housing having an inlet opening in communication with the first cavity portion, and an outlet opening through the top wall and in communication with the second chamber.

Aerator device, filter system including an aerator device, and method of aerating a filter using an aerator device

A module of hollow fiber membranes is re-configured to break up and rearrange a skein into multiple miniskeins each having no more than 250 fibers, all lower miniheaders of the miniskeins being slidably held for vertical movement in vertical slots in an aerator box. Upon shrinkage of the fibers, the lower miniheaders rise in the box. Each miniskein has from 2-12 planar ordered arrays in which the fibers are adhesively secured, preferably without potting the lower miniheaders. The lower ends of the fibers are dead-ended and lower miniheaders are positioned sequentially, transverse to the longitudinal axes of the upper header and the aerator box; its upper miniheader is potted in a choice of configurations. This configuration of miniskeins provides a packing density in each miniheader, whether upper or lower, not attainable in a prior art skein; the use of an aerator box having an area (footprint) no greater than 35% of that of the upper header, provides an effective packing density in the aerator box which provides exceptionally effective use of sparging air and readily removable sludge which drops through the bottom of the aerator box.

Hollow fiber membrane module with miniskeins in miniheaders having a zig-zag configuration

Growing community of inventors

Uiwang-si, South Korea

Daniel Eumine Suk