Use of ammoniated cellulosic materials for remediation of oil-contaminated wetlands by G. A Breitenbeck
(
file
)
1
edition published
in
1997
in
English
and held by
2
libraries
worldwide
This study investigates the potential of naturally occurring and N-enriched absorbents for in situ remediation of wetland soils contaminated with crude oil. Several of these materials were capable of absorbing and retaining 3 to 5 times their weight in crude oil. Absorbents tested included bagasse (<0.5% N), ammoniated bagasse (6.5% N), a mixture (1:1) of bagasse and cottonseed meal (3.1% N), and ground chicken feathers (13.2% N). Surface application of ammoniated bagasse and ground chicken feathers to soil contaminated with 200 ml of South Louisiana Crude oil per kg of marsh soil resulted in losses of 97% and 95%, respectively, of contaminant oil in 90 days. By contrast, losses of oil from soil treated with cottonseed meal were similar to those from untreated soil (55% and 58%, respectively). Ammoniated bagasse was significantly more effective than non-ammoniated bagasse in absorbing oil. Studies are currently underway to determine if application of ammoniated bagasse can also enhance growth of marsh vegetation.
An electronic switchboard employing negative impedance devices(
Book
)
3
editions published
between
1961
and
1962
in
English
and held by
1
library
worldwide
Several different types of matrix configurations were studied. Calculations were made to determine the probability of blocking, number of crosspoints and grade of service for each of the types considered. The results of these calculations are shown and 2 basic matrix configurations are examined in detail. The 4 layer PNPN switching device was completely explored and the results are illustrated, indicating the feasibility of the device selected to perform the switching functions required in the matrix. Tentative circuit configurations for the matrix are shown along with a circuit diagram of a send and receive path employing the PNPN device. (Author).
Ernie fuori controllo : una collezione di sofisticata letteratura e arte by Bud Grace
(
Book
)
1
edition published
in
1997
in
Italian
and held by
1
library
worldwide
Ernie by Bud Grace
(
Journal / Magazine / Newspaper
)
in
Swedish
and held by
1
library
worldwide
B. Grace's Erling - ved sine fulde 5 by B Grace
(
Book
)
1
edition published
in
1995
in
Danish
and held by
1
library
worldwide
Ernie : jag är inte hennes kille by Bud Grace
(
Book
)
1
edition published
in
1989
in
Swedish
and held by
1
library
worldwide
Ernie kommer i kläm by Bud Grace
(
Book
)
1
edition published
in
1998
in
Swedish
and held by
1
library
worldwide
Ernie : häng med på party by Bud Grace
(
Book
)
1
edition published
in
2000
in
Swedish
and held by
1
library
worldwide
Ernie : tomten lämnar inga garantier by Bud Grace
(
Book
)
1
edition published
in
2005
in
Swedish
and held by
1
library
worldwide
Ernie(
Journal / Magazine / Newspaper
)
in
Swedish
and held by
1
library
worldwide
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