Aminotris(methylenephosphonic) acid (ATMP) has been studied for its inhibition effect on the corrosion of carbon steel in secondary-treated municipal wastewater. In this application, ATMP is used as a corrosion inhibitor to protect the carbon steel infrastructure that is used in the treatment and conveyance of municipal wastewater.

Studies have found that ATMP is effective in inhibiting the corrosion of carbon steel in secondary-treated municipal wastewater. The phosphonic acid groups in ATMP can adsorb onto the surface of the carbon steel, forming a protective layer that hinders the electrochemical reactions that lead to corrosion.

In addition to its corrosion inhibition properties, ATMP has been found to be effective in controlling microbial growth in secondary-treated municipal wastewater. The antibacterial properties of ATMP help prevent the formation of biofilms, which can contribute to corrosion issues.

Overall, the use of ATMP as a corrosion inhibitor in secondary-treated municipal wastewater systems has shown promise in reducing the rate of corrosion and extending the lifespan of carbon steel infrastructure. Further research is needed to optimize the dosage and application of ATMP in this application and to evaluate its long-term effectiveness.