Novel method for chrome tanning wastewater treatment and chrome recycling

A novel method for chrome tanning wastewater treatment and chrome recycling comprises two parts of chrome tanning wastewater treatment and chrome recycling, wherein chrome tanning wastewater treatment is implemented as follows: the chrome tanning wastewater is subjected to homogenization and quantification in a collection tank and then pumped by a pump into a pretreatment system for removal of fur residues, leather chips, protein, dyes and other impurities; the chrome tanning wastewater after impurity removal enters an ionic exchange fiber system for exchange and adsorption, and effluent with total chrome and hexavalent chrome up to the standard is recycled as washing water for the leather tanning procedure or enters a follow-up treatment system for up-to-standard discharge; ionic exchange fibers are regenerated with a regeneration solution after being adsorbed and saturated, and the regenerated ionic exchange fibers are used for circularly treating the chrome tanning wastewater. Recycling of chrome is implem