Activated sludge metagenome

Excess activated sludge was collected from the North City WWTP of Nanjing, which uses a unitank process that treats the domestic sewage at a daily capacity of 300 thousand tons.剩余活性污泥（Excess activated sludge）取自南京市城北污水处理厂（North City WWTP），该厂采用UNITANK工艺处理生活污水，日处理规模达30万吨。