A STUDY OF THE EFFECTS OF METHANOL IN START-UP OF UASB REACTORS

被引：10

作者：

CAYLESS, SM ^{[1
]}

MARQUES, DMLD ^{[1
]}

LESTER, JN ^{[1
]}

机构：

[1] IMPERIAL COLL SCI TECHNOL & MED,PUBL HLTH ENGN LAB,LONDON SW7 2BU,ENGLAND

来源：

BIOLOGICAL WASTES | 1990年 / 31卷 / 02期

关键词：

D O I：

10.1016/0269-7483(90)90166-P

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Upflow anaerobic sludge blanket reactors were started up, using a stepped loading regime, on a dairy waste prepared from raw ice-cream production waste from an ice-cream manufacturing plant. One UASB was supplemented with methanol. Granules were detected in the methanol-fed UASB at 3 weeks after start-up. The maximum load of 6·7 kgCOD m-3 day-1 with an HRT of 0·75 days could not be sustained during the 73 days of operation. Complete granulation had, however, occurred by the 4th week. Methanol addition at start-up aided rapid biomass granulation, and enhanced the settling velocity and specific activity of the sludge. However, wash-out was severe and residual biomass was sensitive to methanol withdrawal and produced no net growth. © 1990.

引用

页码：123 / 135

页数：13

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