Wastewater treatment bacteria are sourced from nature. A large variety of wastewater bacteria have been selectively bred through artificial means in laboratory trials, and then undergo a series of acclimatization and cultivation processes to produce salt-tolerant, shock-resistant, and highly stable treatment strains. These strains are tasked with restoring organic pollution in living environments, production areas, and rivers, adhering to principles of being non-toxic, non-harmful, free from secondary pollution, and safe for human health. They effectively remove ammonia nitrogen, BOD, COD, SS, nitrate, sulfate, color, odor, toxic substances, and compound pollutants. Through the pretreatment stage at the front end of the wastewater treatment process, followed by anaerobic and aerobic biological stages, they effectively degrade pollutants in water.