Method for processing wastewater generated in a process for preparing butadiene through oxidative dehydrogenation of industrial butylene

The invention discloses a method for processing wastewater generated in a process for preparing butadiene through oxidative dehydrogenation of industrial butylene. The method concretely comprises enabling wastewater generated in the process of preparing butadiene through oxidative dehydrogenation of industrial butylenes to pass a micro-filtration membrane, so as to intercept large-particle-size thallus and suspended solids in wastewater; after wastewater is subjected to clarification and safety filtration, performing permeation separation on wastewater through a reverse osmosis membrane, so as to obtain purified water at the permeation side and wastewater with high organics content at the non-permeation side, returning purified water to an aldehyde washing tower as desalted water for usage, and adding wastewater with the high organics content into a negative-pressure steam stripping tower, introducing waste gas obtained after steam stripping into a catalytic system employing noble metal platinum or palladium as an active composition for catalytic oxidation, so as to generate carbon dioxide and water, and returning wastewater at the tower bottom to the aldehyde washing tower or discharging into a biochemical sewage processing system. The method is simple in technology, long in apparatus running period, low in running cost, good in purified water quality, and economic and thorough in waste gas processing, and possesses extremely good economic benefit and social benefit.