Influence of organic loading rate change modes on PHB production by halophilic sludge fermenting acetate acid

CUI Youwei; ZHANG Hongyu; JI Siyuan; SHI Yunpeng

doi:10.11949/j.issn.0438-1157.20150287

您当前的位置：

首页 >

文章列表页 >

Influence of organic loading rate change modes on PHB production by halophilic sludge fermenting acetate acid

更新时间：2025-12-10

- Influence of organic loading rate change modes on PHB production by halophilic sludge fermenting acetate acid
- CIESC Journal Issue 10, Pages: 4177-4184(2015)
- 作者机构：
  
  北京工业大学环境与能源工程学院,北京,100124
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150287
  CLC： 703
- Online First：05 October 2015，
  
  Published：05 October 2015
- 稿件说明：
移动端阅览
CUI Youwei, ZHANG Hongyu, JI Siyuan, et al. Influence of organic loading rate change modes on PHB production by halophilic sludge fermenting acetate acid[J]. CIESC Journal, 2015, (10): 4177-4184.
DOI：

CUI Youwei, ZHANG Hongyu, JI Siyuan, et al. Influence of organic loading rate change modes on PHB production by halophilic sludge fermenting acetate acid[J]. CIESC Journal, 2015, (10): 4177-4184. DOI： 10.11949/j.issn.0438-1157.20150287.

摘要

以嗜盐混合菌发酵生产PHB具有免灭菌程序、易提取、产量高等优势而被广泛关注。本研究集中考察了嗜盐混合菌(MMCs)发酵生产PHB过程中调整容积负荷的方式对PHB生产的影响。在研究中通过比较恒定接种生物量改变底物浓度以及恒定底物浓度调整接种生物量两种调整方式下PHB发酵生产的最大细胞含量、PHB最大容积产率以及表观动力学

确定了MMCs的最佳OLR

以及两种变化方式的本质差异。研究结果表明

两种方式下随着OLR升高

细胞内最大PHB的积累量和PHB容积产率也随着增加。本研究发展的嗜盐MMCs最佳OLR 0.91 kg·(kg·d)-1。在相同的OLR下

高的接种生物量始终具有高的碳源转化率和底物消耗速率。为此

采用高接种生物量发酵生产PHB可以提高PHB生产效率并降低PHB的成本。

Abstract

Polyhydroxybutyrate (PHB) production by halophilic mixed consortia draws a lot of attention because of its great advantages

such as no sterilization

extraction convenience and high production. In this study

halophilic mixed microbial cultures were used to investigate the influence of adjusting modes of the organic loading rate on PHB production. Two adjusting modes were applied including adjusting sludge concentration with a consistent substrate concentration and substrate concentration with a consistent sludge concentration. The maximum PHB content in cells

maximum PHB volumetric yield and kinetics were compared to confirm the optimum OLR and the key difference in the two modes. The experimental results showed that the high OLR led to a high PHB content in cells and a high PHB volumetric yield. In this study

0.91 kg ·(kg ·d)-1 was proved to be the optimum OLR for halophilic MMCs. On condition of identical OLR

the high sludge concentration led to high carbon source conversion ratio and substrate consumption rate. Then

a high sludge concentration can enhance PHB productivity and depress PHB production cost.

关键词

Keywords

references

Views

184

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of pH on PHA production by halophilic sludge fermenting mixed VFAs substrate

Advantages and risks of swirling cooling granulation towers

Study on microwave enhanced removal performance of organic matter in coking waste salt

Identification of gas-liquid two-phase flow patterns in a riser based on recursive characteristics and CNN

Thermodynamic study of germanium-impurity competitive deposition in GeCl4-MxCly-H2 system

Related Author

No data

Related Institution

No data

⁰