Process optimization for PHA production by activated sludge using response surface methodology

被引：46

作者：

Hong, Chen ^{[1
]}

Hao, Huang ^{[1
]}

Haiyun, Wu ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Environm & Resource Sci, Dept Environm Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

BIOMASS & BIOENERGY | 2009年 / 33卷 / 04期

关键词：

Polyhydroxyalkanoates; Activated sludge; Response surface methodology; Magnetic field; POLY-BETA-HYDROXYBUTYRATE; CHAIN FATTY-ACIDS; POLYHYDROXYALKANOATES; CULTURES; BIOMASS; GROWTH; STORAGE; WATER; FIELD;

D O I：

10.1016/j.biombioe.2008.11.004

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A five-level-three factor central composite rotary design was employed to find out the interactive effects of three variables, i.e. static magnetic field intensity, concentration of NH(3)-N and initial pH on polyhydroxyalkanoates (PHA) production by activated sludge under the aerobic dynamic feeding (ADF) technique. Response surface methodology (RSM) was utilized for process optimization and a second-order polynomial equation was obtained by multiple regression analysis. A yield of 49.5% of dry cell weight (dcw) was achieved at optimized conditions, i.e. magnetic field 11mT, NH(3)-N 4.8 mg l(-1) (C:N = 60:1)and initial pH 9.0. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：721 / 727

页数：7

共 25 条

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