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Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater./
作者:	Ameh, Thelma.
面頁冊數:	1 online resource (83 pages)
附註:	Source: Masters Abstracts International, Volume: 56-06.
標題:	Environmental science. -
電子資源:	click for full text (PQDT)
ISBN:	9780355181999

Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater.
Ameh, Thelma.

Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater. - 1 online resource (83 pages)

Source: Masters Abstracts International, Volume: 56-06.

Thesis (M.S.)--Tarleton State University, 2017.

Includes bibliographical references

The removal of crude oil spills from the marine environment is a problem of environmental concern that requires technical knowledge and skill for the recovery of spilled material. Mechanical, chemical and biological techniques have been historically used to recover crude oil spills from coastal waters, however such processes have proven to be cost-demanding. This feasibility study employed the use of plant-derived adsorbent materials for cleaning crude oil spills because they offer the advantages of affordability, biodegradability, hydrophobicity and high absorption rate. Biopolymers employed were derived from fenugreek seeds (Trigonella foenum-graecum), psyllium husk (Plantago spp.), okra fruit (Abelmoschus esculentus) and tamarind seed (Tamarindus indica)..

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355181999Subjects--Topical Terms:

1179128
Environmental science.
Index Terms--Genre/Form:

554714
Electronic books.

Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater.
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245 1 0 $a Biopolymers as Treatment Agents for Crude Oil-Contaminated Seawater.
264 0 $c 2017
300 $a 1 online resource (83 pages)
336 $a text $b txt $2 rdacontent
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500 $a Source: Masters Abstracts International, Volume: 56-06.
500 $a Adviser: Rajani Srinivasan.
502 $a Thesis (M.S.)--Tarleton State University, 2017.
504 $a Includes bibliographical references
520 $a The removal of crude oil spills from the marine environment is a problem of environmental concern that requires technical knowledge and skill for the recovery of spilled material. Mechanical, chemical and biological techniques have been historically used to recover crude oil spills from coastal waters, however such processes have proven to be cost-demanding. This feasibility study employed the use of plant-derived adsorbent materials for cleaning crude oil spills because they offer the advantages of affordability, biodegradability, hydrophobicity and high absorption rate. Biopolymers employed were derived from fenugreek seeds (Trigonella foenum-graecum), psyllium husk (Plantago spp.), okra fruit (Abelmoschus esculentus) and tamarind seed (Tamarindus indica)..
520 $a Laboratory prepared seawater samples were used for experiments which employed aqueous polymer treatments in 5% crude oil spiked seawater samples. The treatment groups employed all four polymers individually, as well as six double-polymer combinations in 12 concentrations that ranged from 0.10 g/L to 12.00 g/L. Experimental controls groups contained 5% crude oil without polymer treatments. Experimental setups were left for a 24-hour period after which the U.S.EPA Method 1664B was used to separate and recover crude oil from the contaminated seawater samples with n-hexane as the extraction solvent. Fenugreek-okra combination treatment achieved about 50% crude oil removal efficiency at a concentration of 0.6 g/L while psyllium treatment removed about 52% crude oil from water at 9.0 g/L. Comparison to polyacrylamide, which is a commercial polymer, proved that biopolymers have a potential in crude oil recovery applications.
520 $a Comparative analysis of crude oil removal in closed and open systems were done to determine the effect of evaporation on the polymer treatment process. The control group had an efficiency range of 6 -- 14% in the closed system, while 26% was achieved in the open-beaker experiment. While the psyllium polymer treatment achieved a similar range of crude oil removal between 60 -- 70% in both the closed and open system; the performance of fenugreek-okra combination dropped to 18 -22% range in the closed system and 40% efficiency in the open system.
520 $a Gas chromatographic analysis of the untreated and treated crude oil detected the presence of straight chain hydrocarbons which had retention times corresponding to nC12 -- nC17 alkane standards. The peak responses of psyllium treated crude oil consistently decreased with increasing concentration of the treatment when compared with peak responses of the control, an indication that the concentration of hydrocarbons in the polymer treated crude oil was impacted by the treatment.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Environmental science. $3 1179128
655 7 $a Electronic books. $2 local $3 554714
690 $a 0768
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Tarleton State University. $b Chemistry, Geosciences and Environmental Sciences. $3 1186032
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10289179 $z click for full text (PQDT)