KINETIC-STUDY OF ANAEROBIC-DIGESTION OF OLIVE MILL WASTE-WATER PREVIOUSLY FERMENTED WITH ASPERGILLUS-TERREUS

被引：31

作者：

BORJA, R

GARRIDO, SE

MARTINEZ, L

RAMOSCORMENZANA, A

MARTIN, A

机构：

[1] UNIV CORDOBA, FAC CIENCIAS, DEPT INGN QUIM, AVDA SAN ALBERTO MAGNO S-N, E-14004 CORDOBA, SPAIN

[2] CSIC, INST GRASA & DERIVADOS, E-41012 SEVILLE, SPAIN

[3] UNIV GRANADA, FAC CIENCIAS, DEPT INGN QUIM, E-18071 GRANADA, SPAIN

[4] UNIV GRANADA, FAC FARM, DEPT MICROBIOL, E-18071 GRANADA, SPAIN

来源：

PROCESS BIOCHEMISTRY | 1993年 / 28卷 / 06期

关键词：

D O I：

10.1016/0032-9592(93)80027-E

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A kinetic study has been made of the anaerobic digestion of olive mill wastewater previously fermented with Aspergillus terreus. The anaerobic process was carried out in a digester containing Sepiolite as support for the mediating bacteria. The anaerobic digestion process was found to follow first-order kinetics and the experimental methane volume (G) - time (t) data to conform to an equation of the form G = G(m) [1 -exp (- K(A)t)], from which the apparent kinetic constant, K(A), was calculated. The kinetic constant was found to be scarcely influenced by the substrate concentration over the studied COD (chemical oxygen demand) range (viz. 3.9-8.8 g/litre). Its mean value was 1.45 days-1. This value was substantially higher than that obtained in the anaerobic digestion of untreated olive mill wastewater, and the process seemingly involved no inhibition phenomena as the biotoxicity and the total phenolic compound content (analysed by high performance liquid chromatography HPLC) were reduced by 86.8 and 94.3% respectively as a result of the pretreatment. Finally, the average COD fraction removal was around 70% and the yield coefficient was 349 ml CH4STP/g COD, viz. 30% higher than that provided by untreated wastewater.

引用

页码：397 / 404

页数：8

共 26 条

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