▎ 摘　　要

NOVELTY - Recycling fracturing flowback fluid involves: subjecting fracturing flowback fluid to electroflocculation treatment, electroflotation treatment, electrocatalytic treatment and electroadsorption treatment to obtain desalinated fresh water and electroadsorption concentrated water; and hardening concentrated water by adding alkali, filtering, and subjecting to bipolar membrane electrodialysis treatment to obtain acid, alkali and desalinated fresh water. USE - The method is useful for recycling fracturing flowback fluid. ADVANTAGE - The method realizes the treatment of oil and gas in the fracturing flowback fluid through above-mentioned treatment process, and effectively removes suspended matter, organic matter, total iron, total salinity, bacteria, and total hardness. The quality of treated water can meet the requirement of recycled water quality. The generated acid can be reused in oilfield acidification, acid fracturing and other production processes. The generated alkali can be reused in alkali addition and hardening treatment process, which realizes zero discharge of fracturing flowback fluid. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a recycling device.