Does hydrolyzed polyacrylamide biotransformation improve biodegradation performance in anaerobic sludge blanket reactor?

The biotransformation of hydrolyzed polyacrylamide (HPAM) in an up-flow anaerobic sludge blanket reactor, including its biodegradation performances, mechanisms, key enzymes, and functional microorganisms, was explored. Response surface methodology was applied to further improve HPAM degradation.

What is biodegradation of hydrolyzed polyacrylamide?

Biodegradation of hydrolyzed polyacrylamide by the combined expanded granular sludge bed reactor-aerobic biofilm reactor biosystem and key microorganisms involved in this bioprocess Bioresour. Technol., 263 ( 2018), pp. 153 – 162

Can Bacillus megaterium degrade hydrolyzed polyacrylamide (HPAM)?

Bacillus megateriumcould effectively degrade hydrolyzed polyacrylamide (HPAM). Cytochrome P450 played a central role in cleaving the carbon chain of HPAM molecule. Nitrogen removal was mainly catalyzed by urease. Enzymes in different fractions played distinct roles in the biodegradation of HPAM.

Is polyacrylamide biodegradable?

Study on HPAM biodegradation is not often seen in previous work, but polyacrylamide (PAM) biodegradation have been studied for a long period. However these studies provided seemingly contradictory results. Suzuki et al. observed that PAM was only slightly biodegradable under aerobic conditions.

Can hydrolyzed polyacrylamide be biodegraded in anaerobic baffled reactor aeration tank?

Biodegradation for hydrolyzed polyacrylamide in the anaerobic baffled reactor combined aeration tank Contribution of hot spring bacterial consortium in cadmium and lead bioremediation through quadratic programming model ( fourth ed.), Chinese Environmental Science Publishing House ( 2002)

Does partially hydrolyzed polyacrylamide (HPAM) cause problems in production water?

However, partially hydrolyzed polyacrylamide (HPAM) present in production water causes some problems. For example, after polymer flooding, HPAM will remain in the produced water generated by oilfields, increasing the difficulty in oil–water separation.