TY - JOUR
T1 - Compost Biostimulation for Improved Soil Bioremediation using Endophytic Bacillus Sp.
AU - Maumela, Pfariso
AU - Serepa-Dlamini, Mahloro H.
N1 - Publisher Copyright:
Copyright © 2024, AIDIC Servizi S.r.l.
PY - 2024
Y1 - 2024
N2 - The use of bacterial endophytes in soil bioremediation is limited by nutrient availability in the soil. In this study, garden compost was used as a biostimulant during the bioremediation of lead contaminated soil with a bacterial endophyte. The experimental data showed that the cell wall of the Bacillus sp. strain MHSD_36 resulted in 36% lead biosorption. The addition of glucose and peptone in the growth media, enhanced biomass growth and lead biosorption, achieving a maximum of 76% lead removal. The use of compost as a cheaper carbon and nitrogen source improved the biosorption capacity of strain MHSD_36 during the bioremediation of lead contaminated soil. Compost biostimulation resulted in a residual lead of 250 mg/Kg, from an initial concentration of 300 mg/Kg, compared to 282 mg/Kg without biostimulation. The endophytic bacteria Bacillus sp. strain MHSD_36 is a potential lead biosorbent. Moreover, compost is an organic biostimulator with potential application in soil decontamination.
AB - The use of bacterial endophytes in soil bioremediation is limited by nutrient availability in the soil. In this study, garden compost was used as a biostimulant during the bioremediation of lead contaminated soil with a bacterial endophyte. The experimental data showed that the cell wall of the Bacillus sp. strain MHSD_36 resulted in 36% lead biosorption. The addition of glucose and peptone in the growth media, enhanced biomass growth and lead biosorption, achieving a maximum of 76% lead removal. The use of compost as a cheaper carbon and nitrogen source improved the biosorption capacity of strain MHSD_36 during the bioremediation of lead contaminated soil. Compost biostimulation resulted in a residual lead of 250 mg/Kg, from an initial concentration of 300 mg/Kg, compared to 282 mg/Kg without biostimulation. The endophytic bacteria Bacillus sp. strain MHSD_36 is a potential lead biosorbent. Moreover, compost is an organic biostimulator with potential application in soil decontamination.
UR - http://www.scopus.com/inward/record.url?scp=85206520996&partnerID=8YFLogxK
U2 - 10.3303/CET24111123
DO - 10.3303/CET24111123
M3 - Article
AN - SCOPUS:85206520996
SN - 2283-9216
VL - 111
SP - 733
EP - 738
JO - Chemical Engineering Transactions
JF - Chemical Engineering Transactions
ER -