CROSS-FLOW FILTRATION OF THERMOPHILIC NIGHT-SOIL FERMENTATION SUSPENSION

被引：6

作者：

MATSUMOTO, Y ^{[1
]}

TOTSUKA, Y ^{[1
]}

YAMAMOTO, S ^{[1
]}

KAWASHIMA, Y ^{[1
]}

OCHI, A ^{[1
]}

MIYAUCHI, K ^{[1
]}

机构：

[1] TOYO CLEAN CHEM CO LTD,SHIZUOKA 41023,JAPAN

来源：

KAGAKU KOGAKU RONBUNSHU | 1990年 / 16卷 / 02期

关键词：

Cross-Flow Filtration; Gel Layer; Hydroponic Culture; Membrane Separation; Microfiltration; Night-Soil Treatment; Permeate Resistance; Specific Filtration Resistance; Thermophilic Fermentation Suspension; Ultrafiltration;

D O I：

10.1252/kakoronbunshu.16.197

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thermophilic fermentation suspension of night-soil was filtrated in cross-flow mode using various thermostable membranes. The influence of operating conditions on flux was studied. Limiting fluxes were obtained, and higher feed velocity and lower feed concentration resulted in a higher limiting flux. Difference in membrane module structure had a great effect on this limiting flux. The fluxes obtained with a flat membrane module (NTR-C70-F) were three to five times higher than those with a tubular one. A gel layer was formed on the membrane surface. This layer had a large permeate resistance, and its specific filtration resistance was about 4.5×1015m·kg-1 at 300 kPa. In a long-term pilot test, the permeate flux was stable at about 1.6m3·m-2·d-1 at a feed velocity of 2m·s-1. It was also found that the permeate solution contained a great deal of NH4-N and Cl- compared with commercial hydroponic culture solution. © 1990, The Society of Chemical Engineers, Japan. All rights reserved.

引用

页码：197 / 203

页数：7

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