Alcohol ester wastewater recycling device and method

The invention relates to an alcohol ester wastewater recycling device, which comprises: a first evaporation unit for heating and evaporating alcohol ester wastewater, recycling steam effluent, performing first treatment on first concentrated water flow at the bottom, and performing second treatment on residual liquid as first produced water flow; the first treatment and the second treatment are performed in parallel, the second treatment treating the second produced water stream in the biological unit and the third produced water stream from the nanofiltration unit in the GTR3 unit or the second GTR4 unit. The invention also relates to an alcohol ester wastewater recycling method. The alcohol ester wastewater is recycled through two treatment routes, the problem of filtration of high-concentration brine at a concentrated water end is solved through first treatment, the problem of sewage discharge is solved through second treatment, and the first treatment and the second treatment are staggered, so that concen