語系:
繁體中文
English
說明(常見問題)
回圖書館首頁
手機版館藏查詢
登入
回首頁
切換:
標籤
|
MARC模式
|
ISBD
Nitrate-nitrogen removal in disturbe...
~
Busch, Dennis Lloyd.
FindBook
Google Book
Amazon
博客來
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics./
作者:
Busch, Dennis Lloyd.
面頁冊數:
149 p.
附註:
Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1364.
Contained By:
Dissertation Abstracts International66-03B.
標題:
Environmental Sciences. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3167669
ISBN:
0542035537
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics.
Busch, Dennis Lloyd.
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics.
- 149 p.
Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1364.
Thesis (Ph.D.)--University of Minnesota, 2005.
Experiments on disturbed and undisturbed wetland microcosms were conducted to determine the effect that wetland hydrology, hydraulic loading rate, and temperature have on nitrate removal rates, denitrification kinetics, and potential denitrification. Wetland microcosms were constructed using Webster soil from the Southern Research and Outreach Center in Waseca, Minnesota. Two hydrologic flow regimes were used: vertical-flow, where drainage water flowed vertically through the sediment in the microcosm, and surface-flow, where drainage water flow was horizontal over the surface of wetland sediment. Hydraulic loading rates were 8, 25, and 75 cm day-1. The acetylene block method was used to determine the effect temperature and hydrology has on potential denitrification and denitrification kinetics. Tests were conducted on soil slurries produced from undisturbed soil microcosm stored at 10, 15, and 20°C and subjected to vertical-flow or stagnant no-flow conditions.
ISBN: 0542035537Subjects--Topical Terms:
676987
Environmental Sciences.
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics.
LDR
:03496nmm 2200325 4500
001
1814879
005
20060719122838.5
008
130610s2005 eng d
020
$a
0542035537
035
$a
(UnM)AAI3167669
035
$a
AAI3167669
040
$a
UnM
$c
UnM
100
1
$a
Busch, Dennis Lloyd.
$3
1904322
245
1 0
$a
Nitrate-nitrogen removal in disturbed and undisturbed wetland microcosms subjected to vertical-flow and surface-flow hydrology and the affects hydrology, storage temperature, and incubation temperature exert on denitrification kinetics.
300
$a
149 p.
500
$a
Source: Dissertation Abstracts International, Volume: 66-03, Section: B, page: 1364.
500
$a
Adviser: James L. Anderson.
502
$a
Thesis (Ph.D.)--University of Minnesota, 2005.
520
$a
Experiments on disturbed and undisturbed wetland microcosms were conducted to determine the effect that wetland hydrology, hydraulic loading rate, and temperature have on nitrate removal rates, denitrification kinetics, and potential denitrification. Wetland microcosms were constructed using Webster soil from the Southern Research and Outreach Center in Waseca, Minnesota. Two hydrologic flow regimes were used: vertical-flow, where drainage water flowed vertically through the sediment in the microcosm, and surface-flow, where drainage water flow was horizontal over the surface of wetland sediment. Hydraulic loading rates were 8, 25, and 75 cm day-1. The acetylene block method was used to determine the effect temperature and hydrology has on potential denitrification and denitrification kinetics. Tests were conducted on soil slurries produced from undisturbed soil microcosm stored at 10, 15, and 20°C and subjected to vertical-flow or stagnant no-flow conditions.
520
$a
My results indicated that nitrate removal rates in disturbed (40.9 to 180.3 ng NO3-N g-1 hr-1) and undisturbed (47.7 to 122.4 ng NO3-N g-1 hr-1) vertical-flow wetland microcosms were significantly greater than rates observed in disturbed (-5.8 to 3.8 ng NO3-N g-1 hr-1) and undisturbed (12.1--46.7 ng NO3-N g-1 hr-1) surface-flow wetland microcosms.
520
$a
Results of the kinetic experiment indicated that denitrification in soil slurries follows a Michaelis-Menten-like model. The values determined for Vmax ranged from 201.6 to 439.8 ng NO3-N g-1 hr-1, and significantly increased with temperature. Hydrology did not have a significant effect on limiting rates overall, but hydrology did have a significant effect on limiting rates for soils stored at 15 and 20°C. The Michaelis Constant (Km) ranged from 10.5--58.0 uM and increased significantly with temperature. The effect of hydrology was insignificant on the Michaelis Constant.
520
$a
Potential denitrification rates had a significant direct relationship with incubation temperature, and varied inversely with storage temperature. The highest rates of potential denitrification (1,409 ng NO3-N g-1 hr-1) were observed in soil stored at cold temperatures and incubated at warm temperatures. The effect of hydrology was insignificant overall; however, hydrology did have a significant effect when considering only the soils stored at 15 and 20°C.
590
$a
School code: 0130.
650
4
$a
Environmental Sciences.
$3
676987
650
4
$a
Hydrology.
$3
545716
650
4
$a
Biogeochemistry.
$3
545717
690
$a
0768
690
$a
0388
690
$a
0425
710
2 0
$a
University of Minnesota.
$3
676231
773
0
$t
Dissertation Abstracts International
$g
66-03B.
790
1 0
$a
Anderson, James L.,
$e
advisor
790
$a
0130
791
$a
Ph.D.
792
$a
2005
856
4 0
$u
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3167669
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9205742
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入