Nano zero-valent iron microgel composite material as well as preparation method and regeneration method thereof

The invention discloses a nano zero-valent iron microgel composite material. Raw materials comprise the following components in parts by weight: 70-120 parts of acrylamide, 10-25 parts of chitosan, 2-3 parts of anionic emulsifier, 1-2 parts of nonionic emulsifier, 1-3 parts of photoinitiator, 0.08-0.1 part of preservative, 0.1-0.2 part of pH buffer agent, 3-8 parts of nano zero-valent iron and 1-3parts of dispersant. In addition, the invention also provides a preparation method and a regeneration method of the nano zero-valent iron microgel composite material. When the nano zero-valent iron microgel composite material is used for treating a heavy metal polluted water body, new metal ions are not introduced, heavy metal pollutants are effectively removed, the removal rate of copper ions inhigh-salinity wastewater reaches 95.0%, the salinity resistance and water hardness resistance are good, good wastewater treatment performance is still achieved after recycle, and the wastewater treatment stability is good. 本发