The sewer, as the vein of the city, cleans and drains the filth, isolates the diseases, and is closely related to the citizens' health.
In Chengdu, the maintenance of the large-scale drainage system costs over 330 million yuan per year.
Hydrogen sulfide(\(H_2S\)) is one of the most critical factors causing corrosion of sewer pipes, causing losses of more than 50 million yuan every year. Moreover, it is a neurotoxic, flammable, and explosive gas that may cause poisoning and explosions.
It is mainly produced by anaerobic microorganisms - sulfate-reducing bacteria (SRB).
SCU-China developed an engineered E. coli preparation for SRB. Through biofilm disruption, quorum sensing quenching, and SRB-targeted cocktail therapy, it reduces hydrogen sulfide concentration in the sewer and alleviates the sewer crisis.
We also equipped it with a predator-based suicide system, which allows it to commit suicide after completing the task or flowing into natural water.
SCU-China 2023 believes a small act will make our home a better place.