Liquid purification or separation – Casing divided by membrane into sections having inlet – Each section having inlet
Patent
1996-03-25
1997-07-29
Fortuna, Ana
Liquid purification or separation
Casing divided by membrane into sections having inlet
Each section having inlet
21032184, 210231, 210232, 210346, 210488, B01D 6300
Patent
active
056518897
ABSTRACT:
A membrane apparatus includes a bubble supplying portion for supplying micro bubbles which is provided at a location in the vicinity of the entrance of a flow passage for raw liquid. Thus, the growth of a gel layer on a membrane surface can be prevented, and a large filtering amount can be maintained while preventing sludge from blocking the membrane. Moreover, since bubbles uniformly pass through the inter-membrane passages, sludge blocking can be evenly prevented over the entire surface of the membrane. When a flat membrane is used as the filtering membrane, there is provided an advantage of reducing the frequency of work for disassembling the frame and cleaning the membranes. A membrane treatment apparatus includes the membrane apparatus, an aeration apparatus, a circulating tank, and a filtrate pump. Since the relative density of raw liquid which has received bubbles in the membrane apparatus decreases, a difference in density is produced between that raw liquid and raw liquid which is newly supplied from the circulating tank to the passage and which contain no bubbles. Since this difference in density causes a flow of raw liquid, no power is needed for circulation. Accordingly, a circulating pump can be omitted so as to reduce costs including initial cost and operation cost.
REFERENCES:
patent: 4832841 (1989-05-01), Gutman et al.
patent: 5192456 (1993-03-01), Ishida et al.
patent: 5437787 (1995-08-01), Ishida et al.
patent: 5482625 (1996-01-01), Shimizu et al.
Hashimoto Tadaaki
Irie Kouji
Shirage Hirokazu
Wataya Sakae
Yamamoto Kimio
Fortuna Ana
Mitsui Petrochemical Industries Ltd.
LandOfFree
Sludge treatment membrane apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sludge treatment membrane apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sludge treatment membrane apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-631125