SRS5072737 SAMN12221507 D2 527639 wastewater metagenome Chitosan was not added to the an aerobic tank(50L) of one D-A2O reactor sewage disposal system containing 3000mg/L activated sludgeat a proportion of 1:10. Metagenomics were sequenced after 7 days. bioproject 552937 host sewage isolation_source active sewage in sewage treatment plant collection_date 2017-07-25 geo_loc_name China: Sewage Treatment Plant of Yuxi city lat_lon 24.09 N 102.26 E BioSampleModel Metagenome or environmental SRS5072738 SAMN12221506 D1 527639 wastewater metagenome Chitosan was added to the an aerobic tank(50L) of one D-A2O reactor sewage disposal system containing 3000mg/L activated sludgeat a proportion of 1:10 . Metagenomics were sequenced after 7 days. bioproject 552937 host sewage isolation_source active sewage in sewage treatment plant collection_date 2017-07-25 geo_loc_name China: Sewage Treatment Plant of Yuxi city lat_lon 24.09 N 102.26 E BioSampleModel Metagenome or environmental SRS5072739 SAMN12221509 E2 527639 wastewater metagenome 10g of the original activated sludge was added into culture dish, then 10ml of sterile distilled water, 0.1g of chitosan were not added, and placed under room temperature 25. Metagenomics were sequenced after 7 days. bioproject 552937 host sewage isolation_source active sewage in sewage treatment plant collection_date 2017-07-25 geo_loc_name China: Sewage Treatment Plant of Yuxi city lat_lon 24.09 N 102.26 E BioSampleModel Metagenome or environmental SRS5072740 SAMN12221508 E1 527639 wastewater metagenome 10g of the original activated sludge was added into culture dish, then 10ml of sterile distilled water, 0.1g of chitosan were added, and placed under room temperature 25. Metagenomics were sequenced after 7 days. bioproject 552937 host sewage isolation_source active sewage in sewage treatment plant collection_date 2017-07-25 geo_loc_name China: Sewage Treatment Plant of Yuxi city lat_lon 24.09 N 102.26 E BioSampleModel Metagenome or environmental