Abstract:In this study, a group of compound heterotrophic and nitrifying bacteria was enriched and screened from inshore aquaculture environment. And several influencial factors for their purification ability were investigated. The experiment results showed that, the amount of added bacteria, glucose, temperature, pH and salinity all influenced their pollutant removing rate. When the amount of added combination of bacteria was 3%，time of treatment was 4 days, at temperatures 30±2 ℃, pH 8.1±0.2，salinity of 30±10 g/L and 2 g/L glucose was added, the purification effect was the best, resulting in a removal rate of 79.1% for ammonia, 85.2% for nitrite and 88.7% for COD, respectively. This study provided a theoretical basis for bioremediation of inshore aquaculture environment by compound bacteria.
