【摘要】：采用超聲吹脫-次氯酸鈉氧化工藝處理酮連氮法制肼廢水,優(yōu)化了工藝條件,并進行了尾水處理與鹽分回收。實驗結果表明:在超聲聲能密度0.08 W/mL、吹脫氣量2 000 L/h、次氯酸鈉溶液(有效氯10%)投加量15mL/L、反應時間20 min的最優(yōu)條件下,COD、氨氮和肼類物質去除率分別達到96.97%、99.02%和96.60%,處理成本約為30元/t(以廢水計);尾水經(jīng)蒸餾處理后可滿足GB 8978—1996《污水綜合排放標準》的一級B標準,回收NaCl純度為98.92%,達到GB/T 5462—2015《工業(yè)鹽》的精制工業(yè)鹽一級標準。
[Abstract]:The process conditions were optimized and the tail water treatment and salt recovery were carried out by ultrasonic blowing and sodium hypochlorite oxidation process for the treatment of hydrazide wastewater from ketodiazide production. The experimental results show that under the optimum conditions of ultrasonic energy density 0.08W 鈮，

本文編號：2491652