摘要
以高含氨废水为研究对象,考察了实验条件对真空脱氨效果的影响。研究结果表明,含4mmθ不锈钢环填料的真空柱脱氨效果较好,pH值与水温是主要影响因素。在进料含氨水浓度为5000mg/L、pH值为12、夹套水温为50℃、真空度为7.9kPa、进料流速为20mL/min的较缓和条件下,单次实验氨脱除率可达87.2%,连续实验平均脱氨率为86.2%。
The effects of test conditions on the efficiency of ammonia removal from wastewater with high ammonia content were studied by vacuum desorption method. Results showed that the pH value of wastewater and the temperature of jacket heating water were the main influential factors. When treating wastewater with a NH3 content of 5 000 mg/L using a vacuum column packed with 4 mm θ stainless steel packing, under the conditions of a wastewater pH value of 12, a jacket-water temperature of 50℃ a vacuum degree of 7. 9 kPa, a feed rate of 20 mL/min, the once-through removal rate ofammonia reached 87.2% and an average ammonia removal rate of 86.2% was obtained from continuous experiments.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2007年第11期20-24,共5页
Petroleum Processing and Petrochemicals
关键词
氨
减压
废水
ammonia
vacuum
waste water
