東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Studies of high rate anaerobic bio-c...

Cheong, Dae-Yeol.

Linked to FindBook

Google Book

Amazon

博客來

Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters./
Author:	Cheong, Dae-Yeol.
Description:	255 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3253.
Contained By:	Dissertation Abstracts International66-06B.
Subject:	Engineering, Agricultural. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178663
ISBN:	0542185067

Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters.
Cheong, Dae-Yeol.

Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters. - 255 p.

Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3253.

Thesis (Ph.D.)--Utah State University, 2005.

An efficient and stable operational strategy for an anaerobic sequencing batch reactor (ASBR) was studied to overcome inhibitory potential when anaerobically treating synthetic high strength organic wastewaters to produce methane. The ASBR systems, which were operated under batch and fed-batch modes, were conducted at a wide range of volumetric organic loading rate (VOLR) (1.5--24 g COD/L/d) by varying hydraulic retention time (HRT) (1.25, 2.5, and 5 days) at 35°C. The fed-batch mode ASBR, which was operated with a long feed time compared with the usual operation of an ASBR, was the most stabile for treating synthetic organic wastewater, even at the higher VOLR, and provided a higher COD removal efficiency and methane production rate compared to the short feed batch mode in the experimental ranges investigated. The formation of lower volatile fatty acid concentrations for the fed-batch mode confirmed the stability and efficiency of this operational strategy.

ISBN: 0542185067Subjects--Topical Terms:

1019504
Engineering, Agricultural.

Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters.
LDR:03356nmm 2200301 4500 001 1815115
005 20060613121910.5
008 130610s2005 eng d
020 $a 0542185067
035 $a (UnM)AAI3178663
035 $a AAI3178663
040 $a UnM $c UnM
100 1 $a Cheong, Dae-Yeol. $3 1904552
245 1 0 $a Studies of high rate anaerobic bio-conversion technology for energy production during treatment of high strength organic wastewaters.
300 $a 255 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3253.
500 $a Major Professor: Conly L. Hansen.
502 $a Thesis (Ph.D.)--Utah State University, 2005.
520 $a An efficient and stable operational strategy for an anaerobic sequencing batch reactor (ASBR) was studied to overcome inhibitory potential when anaerobically treating synthetic high strength organic wastewaters to produce methane. The ASBR systems, which were operated under batch and fed-batch modes, were conducted at a wide range of volumetric organic loading rate (VOLR) (1.5--24 g COD/L/d) by varying hydraulic retention time (HRT) (1.25, 2.5, and 5 days) at 35°C. The fed-batch mode ASBR, which was operated with a long feed time compared with the usual operation of an ASBR, was the most stabile for treating synthetic organic wastewater, even at the higher VOLR, and provided a higher COD removal efficiency and methane production rate compared to the short feed batch mode in the experimental ranges investigated. The formation of lower volatile fatty acid concentrations for the fed-batch mode confirmed the stability and efficiency of this operational strategy.
520 $a The influence of environmental pH and bacterial stress on anaerobic hydrogen production was studied on batch vial cultures and completely mixed batch reactors (CMBRs) to selectively enrich hydrogen-producing species from natural, mixed anaerobic sludge. In the batch vial experiments, the culture at the initial pH 7, using inocula exposed to the bacterial stress of chemical acidification (as perchloric acid), showed the best hydrogen-producing potential of the enrichment procedures studied. The CMBR that was operated with pH controlled at 5.7 had the largest hydrogen production among the observed pH values. The batch vial and CMBR anaerobic fermentation revealed that butyrate formation was correlated to higher hydrogen yield.
520 $a The effects of pH and HRT on the acid-phase ASBR were studied with the aim of optimizing the conversion of synthetic organic wastewater (COD of 25,000 mg/L) into bio-hydrogen. A full factorial design using an evolutionary operation was applied, and the experimental results from 20 runs revealed that a maximum hydrogen production rate of 4,460--5,540 mL/L/d was obtained at HRT = 8 h and pH = 5.7. Hydrogen production rate was strongly dependent on HRT, and the effect (P < 0.05) was statistically significant. The hydrogen-producing acid-phase ASBR had a higher hydrogen production rate compared to that produced using continuous-flow stirred tank reactors.
590 $a School code: 0241.
650 4 $a Engineering, Agricultural. $3 1019504
650 4 $a Engineering, Environmental. $3 783782
690 $a 0539
690 $a 0775
710 2 0 $a Utah State University. $3 960049
773 0 $t Dissertation Abstracts International $g 66-06B.
790 1 0 $a Hansen, Conly L., $e advisor
790 $a 0241
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178663