Characterization of soluble molecules from thermochemically pretreated sludge

被引：43

作者：

Penaud, V ^{[1
]}

Delgenès, JP ^{[1
]}

Moletta, R ^{[1
]}

机构：

[1] INRA, Lab Biotechnol Environm, F-11100 Narbonne, France

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING | 2000年 / 126卷 / 05期

关键词：

D O I：

10.1061/(ASCE)0733-9372(2000)126:5(397)

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soluble molecules generated during the thermochemical pretreatment of an industrial microbial biomass were characterized by a dark color and a poor anaerobic biodegradability. Fractionation of this thermochemically pretreated microbial biomass has been investigated in order to identify inhibitory or refractory fractions. An adsorbent resin (Amberlite XAD 7HP) was selected for its ability to partially remove color from the pretreated substrate. Resin treatment or acid precipitation (pH = 3) were both effective in increasing biodegradability and removing biotoxicity from the pretreated microbial biomass. The increase in biodegradability was found to be the consequence of elimination of high-molecular-weight compounds through resin treatment or pH precipitation.

引用

页码：397 / 402

页数：6

共 30 条

[1]

American Public Health Association, 1985, STAND METH EX WAT WA

[2]

[Anonymous], 1978, BIOTECHNOL BIOENG SY, DOI DOI 10.1080/15730620600578629

[3]

BUCKHOLZ LL, 1988, CEREAL FOOD WORLD, V33, P547

[4]

EASTMAN JA, 1981, J WATER POLLUT CON F, V53, P352

[5]

EINARSSON H, 1988, MICROBIOS, V53, P27

[6] INHIBITION OF BACTERIAL-GROWTH BY MAILLARD REACTION-PRODUCTS [J].

EINARSSON, H ;

SNYGG, BG ;

ERIKSSON, C .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1983, 31 (05) :1043-1047

[7]

FINOT PA, 1981, PROG FOOD NUTR SCI, V5, P193

[8]

GREENSHIELDS RN, 1992, PROCESS BIOCHEM, P11

[9]

HAUG RT, 1983, J WATER POLLUT CON F, V55, P23

[10]

HERNANDEZ M, 1994, APPL ENVIRON MICROB, V60, P3909

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