Colour removal from a nitration effluent using ozonation

使用臭氧化从硝化废水中去除颜色

• 批准号: 515371-2017
• 负责人: Mohseni, Madjid
• 金额: $ 1.82万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640356
• 关键词: Colour; removal; nitration; effluent; using

Ozonation is an effective process for the degradation of colour residues that are recalcitrant to biologicaltreatment in industrial effluents. A major advantage of ozonation is that, it generally does not generate anyadditional waste streams that require further treatment (for example filtration does so). The selectivity of ozonetowards coloured and recalcitrant compounds, however, is dependent on characteristics of the effluent. This isespecially of importance because ozone should not be used to treat organics that are easily biodegradable andcan be removed via conventional biological processes. Hence, a thorough laboratory-scale assessment ofefficiency of ozonation in selective removal of recalcitrant compounds from a coloured effluent is required tounderstand the advantages and limitations of this technology and to draw economic conclusions on itscommercial-scale application.This research is initiated by the University of British Columbia (UBC) and involves active participation of BCResearch Inc. (BCRI). The main objective of this project is to research efficiency of ozonation for the removalof residual colour from an effluent produced in the mono-nitrobenzene production process.The first and second stages of the project will involve identification of the important process parameters anddesign of a test plan to study the effect of each parameter on colour removal efficiency. The third stage willexecute the designed test plan in a lab-scale ozone contactor, which is available in our laboratory, anddetermination of the kinetics of the oxidation process, and identification of the importance of differentparameters. The last stage will focus on testing the optimum operating parameters in a larger scaleflow-through ozonation unit, which is also available in our laboratory.

臭氧化是降解工业废水中难以进行生物处理的有色残留物的有效方法。臭氧化的一个主要优点是，它通常不会产生任何需要进一步处理的额外废物流（例如过滤）。然而，臭氧对有色化合物和难降解化合物的选择性取决于废水的特性。这一点尤其重要，因为臭氧不应用于处理易于生物降解且可通过常规生物过程去除的有机物。因此，需要对臭氧化从有色废水中选择性去除顽固化合物的效率进行彻底的实验室规模评估，以了解该技术的优点和局限性，并得出其商业规模应用的经济结论。这项研究由不列颠哥伦比亚大学 (UBC) 发起，BCResearch Inc. (BCRI) 积极参与。该项目的主要目标是研究臭氧化去除单硝基苯生产过程中产生的废水中残留颜色的效率。该项目的第一和第二阶段将涉及重要工艺参数的确定和测试计划的设计，以研究每个参数对颜色去除效率的影响。第三阶段将在我们实验室提供的实验室规模臭氧接触器中执行设计的测试计划，确定氧化过程的动力学，并确定不同参数的重要性。最后阶段将重点测试更大规模的流通式臭氧化装置的最佳操作参数，该装置也可在我们的实验室中使用。