SRR28520861 SUC_CON.fastq sludge-5 SRR28520862 SUC_1.fastq sludge-4 SRR28520863 STA_CON.fastq sludge-3 SRR28520864 STA_2.fastq sludge-2 SRR28520865 STA_1.fastq sludge-1