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The biodegradation of Daqing crude oil in seawater was studied by petroleum-degrading Zoogloea sp. strain SY1 isolated from soil. The results showed its biodegradation rate was 44.5% without nutrients. SY1 can adapt to NaCl concentration, temperature, pH, and dissolved oxygen in the seawater. Biodegradation rate was improved by appending nitrogen and phosphorus. Phosphorus, pH, NaCl, and nitrogen...
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