Influence of Soil pH and Temperature on Atrazine Bioremediation
2016
Andleeb, Shahla | Zhao, Jiang | Rehman, Khalil ur | Olajide, Erinle Kehinda | Ying, Zhang
Present study was conducted to clarify soil pH and temperature influence on different atrazine bioremediation techniques. For this purpose, sodium citrate, Arthrobactor sp. strain DNS10, sawdust and animal manure were selected to clarify their atrazine remediation efficiency under pH 5, 7 and 9 and temperatures 20, 30 and 40°C, respectively. Results showed that atrazine remediation was generally optimized at pH 7 and 30°C for all the treatments except sodium citrate as soil treated with sawdust was not temperature dependant, but at pH 5 remediation process was determined slower. Atrazine remediation in soil with no additional amendment was only 34%, while in soil treated with sawdust, DNS10, sodium citrate and animal manure were 75.17%, 89%, 74.17% and 76.83% at optimized pH and temperature. Overall atazine removal rate was significantly (≥0.01) higher with increasing in temperature at all the selected pH.
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