naa a22 4500 510750265 CHVBK 20180411083102.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11270-013-1715-x doi (NATIONALLICENCE)springer-10.1007/s11270-013-1715-x Effect of Seaweeds on Degradation of DDT in Soils [Elektronische Daten] [Simi Sudharshan, Megharaj Mallavarapu, Nanthi Bolan, Ravi Naidu] Seaweed was investigated as an amendment to enhance remediation of 1,1,1-trichloro-2,2-bis (p-chlorophenyl) ethane (DDT)-contaminated soil. Under anaerobic conditions, the addition of seaweeds increased DDT degradation between 61% and 88% of the original concentration after 14days of incubation whereas only 33% of DDT was degraded in unamended soil. DDT was degraded to metabolites such as 1,1-dichloro-2,2-bis (p-chlorophenyl) ethane (DDD), 1,1-dichloro-2,2-bis (p-chlorophenyl) ethylene (DDE), and 1-chloro-2,2-bis (p-chlorophenyl) ethylene (DDMU). Seaweed-amended soils converted 35-56% of DDT to DDD while the unamended soil formed only 15% DDD. Seaweed amendments modified soil conditions which include soils' dissolved organic carbon (DOC), ionic strength, redox potential, and pH. These significant physicochemical changes influenced the increase in DDT bioavailability and transformation in seaweed-amended soils compared to the unamended soils. Multiple linear regression analysis also suggested that factors such as DOC, calcium, redox potential, and pH are involved against DDT degradation (p = 0.02). Springer Science+Business Media Dordrecht, 2013 DDT nationallicence Seaweeds nationallicence Degradation nationallicence Sudharshan Simi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut Mallavarapu Megharaj Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut Bolan Nanthi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut Naidu Ravi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut Water, Air, & Soil Pollution Springer Netherlands 224/12(2013-12-01), 1-8 0049-6979 224:12<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1715-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1715-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sudharshan Simi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 700 1- Mallavarapu Megharaj Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 700 1- Bolan Nanthi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 700 1- Naidu Ravi Centre for Environment Risk Assessment and Remediation (CERAR), University of South Australia, 5095, Mawson Lakes, SA, Australia aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/12(2013-12-01), 1-8 0049-6979 224:12<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer