Recycling Process of Ammonia-Nitrogen Wastewater Produced from Ion-Absorbed Rare Earth Separation Plants AITranslate
Abstract AITranslate
For the ammonia-nitrogen wastewater produced from ion-absorbed rare earth separation plants,the influence of production process and emission requirements on wastewater treatment process is analyzed,and the technological route of ammonia recycling in the wastewater is proposed.A combined process based on dissolved air floatation is applied to remove the organic extractant from the wastewater.The electrocoagulation technology is used to remove heavy metals in depth.The ammonia-nitrogen in wastewater is recovered in the form of NH3·H2O by steam stripping technology,and ammonia-nitrogen resource utilization is realized while the wastewater is discharged to the standard.The ammonia-nitrogen content of de-aminated wastewater can be reduced to less than 15 mg/L.For the treatment of 1 m3 wastewater,the steam consumption is about 90110 kg/m3,the treatment cost is about 110 to 130 yuan/m3,and the value of recovered NH3·H2O is about 140 yuan/m3,which can completely offset the treatment cost.The process is technically and economically feasible.
KeyWords AITranslate
1李志强,陶莉,李许玲,向波,刘晨明,林晓.稀土萃取料液中油的成分及除油技术现状[J].当代化工研究,2020(10):1-4. 被引量：4
2乔淑芳,刘辉,陈娅娜.重金属废水处理技术研究进展[J].当代化工研究,2021(9):122-124. 被引量：12
3马宗云,卢阶主,庄辉.电凝聚技术在稀土冶炼废水处理中的应用[J].有色冶金设计与研究,2019,40(5):37-39. 被引量：2
4聂程.汽提蒸氨法处理三元前驱体生产中的高浓度氨氮废水[J].水处理技术,2021,47(10):136-139. 被引量：6
5朱志亮,周建跃,殷红燕,束世平,刘乃鸿.氨-水精馏技术在工业废水脱氨中的应用[J].现代化工,2008,28(S1):111-113. 被引量：4
6李武东,朱志亮.汽提法处理稀土行业高浓度氨氮废水模拟计算[J].化工装备技术,2012,33(1):37-40. 被引量：9
7李绍媛,王永辉,李雅楠.NH_4^+转型和废水温度对吹脱-汽提塔回收氨的影响[J].河南化工,2018,35(3):45-47. 被引量：2
1朱溶坤.浅谈气浮工艺处理污水应用现状[J].中文科技期刊数据库（文摘版）工程技术,2022(5):0103-0106.
2肖慧敏.中国不锈钢冶炼工艺技术的进展[J].中文科技期刊数据库（全文版）工程技术,2021(9):0149-0149.
3张立峰,解剑锋,倪雪峰.金属丝缠绕线隙式过滤器工艺研究[J].汽车零部件,2023(3):56-60.
4李钊,万骏.江苏省某离子型稀土分离企业放射性源项辐射调查与分析[J].中文科技期刊数据库（文摘版）医药卫生,2021(4):0298-0300.
5张浩波,马丽.溶气气浮工艺在城镇污水处理厂对深度除磷效果的探究[J].石油石化物资采购,2023(5):136-138.
6许雄文,张桂铭,何国锋.浸梗机补水温度控制优化改进[J].设备管理与维修,2023(9):97-98.
7张骞,蓝桥发,郭浩然,杨幼明,钟声,张小林.粉煤灰基地质聚合物固化低放射性稀土酸溶渣[J].有色金属:冶炼部分,2023(7):75-83.
8韦巧瑜.造纸废水好氧处理过程的DE算法改进措施研究[J].造纸科学与技术,2023,42(1):78-80.
9付乐,罗国豹.城镇污水处理厂高排放标准处理工艺案例分析[J].净水技术,2023,42(3):174-180.
10赵宇彤,史俊,刘栓,邓慧萍.水中微塑料的常规与新兴去除工艺的研究进展[J].净水技术,2023,42(S01):32-39.
Basic Information:
DOI：
Chinese Library Classification Number:X756[环境科学与工程—环境工程]
Citation Information:
For the ammonia-nitrogen wastewater produced from ion-absorbed rare earth separation plants,the influence of production process and emission requirements on wastewater treatment process is analyzed,and the technological route of ammonia recycling in the wastewater is proposed.A combined process based on dissolved air floatation is applied to remove the organic extractant from the wastewater.The electrocoagulation technology is used to remove heavy metals in depth.The ammonia-nitrogen in wastewater is recovered in the form of NH3·H2O by steam stripping technology,and ammonia-nitrogen resource utilization is realized while the wastewater is discharged to the standard.The ammonia-nitrogen content of de-aminated wastewater can be reduced to less than 15 mg/L.For the treatment of 1 m3 wastewater,the steam consumption is about 90110 kg/m3,the treatment cost is about 110 to 130 yuan/m3,and the value of recovered NH3·H2O is about 140 yuan/m3,which can completely offset the treatment cost.The process is technically and economically feasible.
quote
| GB/T 7714-2015 | [1] WANG Ming. Recycling Process of Ammonia-Nitrogen Wastewater Produced from Ion-Absorbed Rare Earth Separation Plants[J]. Rare Metals and Cemented Carbides, 2023(3): 13-17. |
| MLA | [1] WANG Ming. "Recycling Process of Ammonia-Nitrogen Wastewater Produced from Ion-Absorbed Rare Earth Separation Plants." Rare Metals and Cemented Carbides, no. 3, 2023, pp. 13-17. |
| APA | [1] WANG Ming. (2023). Recycling Process of Ammonia-Nitrogen Wastewater Produced from Ion-Absorbed Rare Earth Separation Plants. Rare Metals and Cemented Carbides(3), 13-17. |
| IEEE | [1] WANG Ming, "Recycling Process of Ammonia-Nitrogen Wastewater Produced from Ion-Absorbed Rare Earth Separation Plants," Rare Metals and Cemented Carbides, no. 3, pp. 13-17, 2023. keywords: {ion-absorbed rare earth;ammonia-nitrogen wastewater;steam stripping;dissolved air flotation;electrocoagulation;recycling} |