![Continuous methane fermentation and the production of vitamin B"1"2 in a fixed-bed reactor packed with loofah [An article from: Bioresource Technology]](https://www.ebooknetworking.net/books/B00/0RQ/bigB000RQZSHM.jpg)
Continuous methane fermentation and the production of vitamin B"1"2 in a fixed-bed reactor packed with loofah [An article from: Bioresource Technology]
Book Details
Author(s)Y. Yang, Z. Zhang, J. Lu, T. Maekawa
PublisherElsevier
ISBN / ASINB000RQZSHM
ISBN-13978B000RQZSH2
MarketplaceFrance 🇫🇷
Description
This digital document is a journal article from Bioresource Technology, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
A fixed-bed reactor with acclimated methanogens immobilized on a loofah support was studied on a laboratory scale to evaluate the system producing methane from the mixture of CO"2 and H"2 gas, with the production of vitamin B"1"2 as a by-product. Fermentation using CO"2/H"2 acclimated methanogens was conducted in a jar fermentor with hydraulic retention times (HRTs) of three and six days. The performance of the reactor was mainly dependent on the HRT. With an HRT of three days, the methane production rate and the vitamin B"1"2 concentration in the culture broth were 6.18 l/l-reactor/h and 2.88 mg/l-culture liquid; these values were 11.96 l/l-reactor/h and 37.54 mg/l-culture liquid for an HRT of six days. A higher total cell mass of methanogens retained 42.5 g dry cell/l-culture liquid was achieved in the HRT of six days. The loofah carrier immobilized almost 95% of the methanogens, which led to a more effective bio-reaction. It was also observed that the fermentation system had a better ability to buffer pH, especially for an HRT of six days.
Description:
A fixed-bed reactor with acclimated methanogens immobilized on a loofah support was studied on a laboratory scale to evaluate the system producing methane from the mixture of CO"2 and H"2 gas, with the production of vitamin B"1"2 as a by-product. Fermentation using CO"2/H"2 acclimated methanogens was conducted in a jar fermentor with hydraulic retention times (HRTs) of three and six days. The performance of the reactor was mainly dependent on the HRT. With an HRT of three days, the methane production rate and the vitamin B"1"2 concentration in the culture broth were 6.18 l/l-reactor/h and 2.88 mg/l-culture liquid; these values were 11.96 l/l-reactor/h and 37.54 mg/l-culture liquid for an HRT of six days. A higher total cell mass of methanogens retained 42.5 g dry cell/l-culture liquid was achieved in the HRT of six days. The loofah carrier immobilized almost 95% of the methanogens, which led to a more effective bio-reaction. It was also observed that the fermentation system had a better ability to buffer pH, especially for an HRT of six days.
