Research On The Application Of Ultrasound in The Treatment Of Acrylic Fiber Wastewater

The wastewater from dry spinning acrylic fiber production is highly toxic and has poor biodegradability, making it a difficult to treat organic wastewater. This article uses ultrasonic method, Fenton reagent method, and ultrasonic Fenton reagent combination method to treat dry spinning acrylic fiber wastewater, and compares the effectiveness with other methods to treat dry spinning acrylic fiber wastewater. Based on this, a standard discharge process route is proposed. The article examined the effects of ultrasound frequency, wastewater pH, electroacoustic power, and time on the COD and BOD of acrylic fiber wastewater in the ultrasound method_ The effects of C (H2O2), C (Fe~(2+)), pH value, and reaction time on the COD and BOD of acrylic fiber wastewater in the Fenton reagent method were studied to determine the removal rate of 5_ Single factor experiment on the influence of removal rate. On the basis of separately examining the conditions of Fenton reagent method and ultrasonic method for treating dry spinning acrylic fiber wastewater, this study further investigated the influencing factors of ultrasonic Fenton combined method for treating dry spinning acrylic fiber wastewater. In the examination of various relevant factors, a comparison was made with Fenton reagent treatment and ultrasound treatment methods to investigate the effect of ultrasound Fenton combination method on improving treatment efficiency. The biochemical part adopts model testing method. The flocculated effluent and the effluent pretreated with flocculent ultrasonic Fenton were respectively fed into a biochemical model device to compare the COD degradation effects of individual biochemical effluent, flocculent biochemical effluent, and flocculent ultrasonic Fenton biochemical effluent. The flocculation ultrasonic Fenton SBR process was selected through experiments to treat dry spinning acrylic fiber wastewater. The COD degradation rate of the process can reach 88.7%, and the effluent COD meets the national secondary discharge standard.