National invention patent , patent No.ZL2008 1 0139555.9  (attachment  Equipment outline drawing process)

Waste water produced by furfural is belong to Complex organic wastewater, which contain cetic acid, furfural and alcohols, aldehydes, ketones, esters, organic acids and many kinds of organics, PH is 2-3, high concentration in COD,and bad in biodegradability.

The process regard saturated steam as heat source, evaporation system make

Waste water vaporized, boost pressure to reach production requirement, recycle the furfural and heat from the waste water to realize waste water recycle in production process.    The device adopt automatic program to control.