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Bioremediation of Lead Contaminated ...

Soumano, Victoire Daniela,

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Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments // Victoire Daniela Soumano.
Author:	Soumano, Victoire Daniela,
Description:	1 electronic resource (64 pages)
Notes:	Source: Masters Abstracts International, Volume: 86-11.
Contained By:	Masters Abstracts International86-11.
Subject:	Environmental health. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31998245
ISBN:	9798315724575

Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments /
Soumano, Victoire Daniela,

Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments /Victoire Daniela Soumano. - 1 electronic resource (64 pages)

Source: Masters Abstracts International, Volume: 86-11.

As result of anthropogenic activities, soil contamination by heavy metals particularly lead (Pb) has raised concerns globally due to the exposure risks. High concentration of Pb in soils negatively affect soil microbial communities, plant growth, crop yield, water sources, and human health. This study aimed at evaluating a low cost, low tech, and environmentally friendly remediation method to reduce phytoavailable Pb concentration through the application of biochar and compost amendments. A pot experiment was conducted on highly Pb contaminated soils collected from a residential backyard in New Orleans, Louisiana, USA. Contaminated soil was treated with two soils to amendment ratios: 1 gallon of soil to ¼ and ½ gallons of amendments. The treatments used were biochar, chicken manure compost, vegetation compost, biochar & chicken manure compost, and biochar & vegetation compost. Phytoavailable and total Pb concentrations were measured as well as soil pH, conductivity, and organic matter content. Soil microbial communities' DNA was extracted and sequenced using 16S V3/V4 and ITS specifically for bacterial and fungal communities sequencing to determine microbial community composition. Treatments were applied to the contaminated soil and incubated at room temperature for two months, at which time sparkler radishes were planted to assess the effect of the treatments on plant growth and uptake of Pb.The results indicated that chicken manure compost and biochar combined with chicken manure compost effectively reduced phytoavailable Pb concentration. The two effective treatments had better plant growth results; however, due to lack of sufficient radish harvest, we were unable to assess plant uptake and translocation factor. Microbial communities' composition revealed that bacterial communities' diversity increased and fungal community diversity decreased with decreasing phytoavailable Pb concentration. In conclusion, for a short-term period, chicken manure compost and the combination of biochar and chicken manure compost were effective amendments to reduce phytoavailable Pb concentration in contaminated urban soils.

English

ISBN: 9798315724575Subjects--Topical Terms:

543032
Environmental health.
Subjects--Index Terms:

Biochar

Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments /
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245 1 0 $a Bioremediation of Lead Contaminated Soil With Biochar and Composts Amendments / $c Victoire Daniela Soumano.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2025
300 $a 1 electronic resource (64 pages)
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500 $a Source: Masters Abstracts International, Volume: 86-11.
500 $a Advisors: Paltseva, Anna; Villa, Jorge Committee members: Schubert, Brian A.; McDonald, Mark D.; Chistoserdov, Andrei Y.
502 $b M.S. $c University of Louisiana at Lafayette $d 2025.
520 $a As result of anthropogenic activities, soil contamination by heavy metals particularly lead (Pb) has raised concerns globally due to the exposure risks. High concentration of Pb in soils negatively affect soil microbial communities, plant growth, crop yield, water sources, and human health. This study aimed at evaluating a low cost, low tech, and environmentally friendly remediation method to reduce phytoavailable Pb concentration through the application of biochar and compost amendments. A pot experiment was conducted on highly Pb contaminated soils collected from a residential backyard in New Orleans, Louisiana, USA. Contaminated soil was treated with two soils to amendment ratios: 1 gallon of soil to ¼ and ½ gallons of amendments. The treatments used were biochar, chicken manure compost, vegetation compost, biochar & chicken manure compost, and biochar & vegetation compost. Phytoavailable and total Pb concentrations were measured as well as soil pH, conductivity, and organic matter content. Soil microbial communities' DNA was extracted and sequenced using 16S V3/V4 and ITS specifically for bacterial and fungal communities sequencing to determine microbial community composition. Treatments were applied to the contaminated soil and incubated at room temperature for two months, at which time sparkler radishes were planted to assess the effect of the treatments on plant growth and uptake of Pb.The results indicated that chicken manure compost and biochar combined with chicken manure compost effectively reduced phytoavailable Pb concentration. The two effective treatments had better plant growth results; however, due to lack of sufficient radish harvest, we were unable to assess plant uptake and translocation factor. Microbial communities' composition revealed that bacterial communities' diversity increased and fungal community diversity decreased with decreasing phytoavailable Pb concentration. In conclusion, for a short-term period, chicken manure compost and the combination of biochar and chicken manure compost were effective amendments to reduce phytoavailable Pb concentration in contaminated urban soils.
546 $a English
590 $a School code: 1363
650 4 $a Environmental health. $3 543032
650 4 $a Soil sciences. $3 2122699
650 4 $a Environmental science. $3 677245
653 $a Biochar
653 $a Bioremediation
653 $a Composts
653 $a Phytoavailable
653 $a Plant growth
653 $a Soil microbial communities
690 $a 0470
690 $a 0481
690 $a 0768
710 2 $a University of Louisiana at Lafayette. $b Environmental Resource Science. $e degree granting institution. $3 3826282
720 1 $a Paltseva, Anna $e degree supervisor.
720 1 $a Villa, Jorge $e degree supervisor.
773 0 $t Masters Abstracts International $g 86-11.
790 $a 1363
791 $a M.S.
792 $a 2025
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31998245