Non-woven fabric filter and wastewater treatement with activated sludge process using the non-woven fabric filter
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United States of America Patent
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app pub date -
Oct 24, 2005
filing date -
Oct 24, 2002
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Abandoned
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Abstract
A non-woven fabric filter used for wastewater treatment with activated sludge. The present invention, for the first time, uses non-woven fabric as a filtering material for wastewater treatment. The non-woven fabric filter for wastewater treatment includes a tubular non-woven fabric filtering portion, which has a mean pore size of 0.2 .mu.m to 150 .mu.m; a porous tubular supporting portion disposed on inner walls of the tubular non-woven fabric filtering portion to provide support; and a sealing portion for sealing two ends of the tubular non-woven fabric filtering portion and the tubular supporting portion, while leaving a hollow space in the tubular supporting portion.
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