The Research Situation and Develop prospect of Biodegradation of polyacrylamide

　　　At present, the domestic and abroad research for biodegradation of polyacrylamide still stays in the primary stage. Overseas studies normally focus on the effect about PAM to the soil microbial community and soil ecological environmental. And, as a flocculants settled slag, it has the influence on storage environment
In 1999, Huangfeng and his team studied sulfate reducing bacteria’s degradation to PAM. Hanchangfu use glucose, ammonium tartrate, benzene methanol, MgSO4 and KH2PO4, VB, trace elements liquid as culture medium , take yellow phanerochaete chrysosporium as culture, then cultivate yellow phanerochaete chrysosporium by 21d in 35 ℃, this bacteria has a special enzyme catalytic degradation ability to PAM. The advanced strains which are cultivated by Zhangjunying at the same time in degradation of PAM can degrade deciduous acrylamide monomer quickly and it will not cause secondary pollution to the environment during the degradation process. In the United States sustainable environmental biology technology conference, they put forward the genetic engineering microorganism, optimizing microbial strains and biology sensing technology available in strain, the three big latest development technology fields. Building genetic engineering bacteria which contains functional genes and has stronger competitive is one of main goals in current biologi technology.
Looking for high-effective degradation PAM’s microbiology is the next working goal for researcher. With the continuous development of oil industry, the requirement for oil extraction sewage treatment and recycle need to be improved. On the basis of original primary treatment, we need combine with the practical situation to add deep treatment unit to do the further purify process so that we can satisfy oil development demand. With the rapid development of molecular biology technology and gene engineering technology, microbiology is certain to be an important way to resolve the environmental pollution problems caused by PAM polyacrylamide and its degradation.