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城市无氧过器废水处理使用先进的氧化工艺,潜在用于不受限制的作物生产

Barnabas Oluoch¹, William Musazura¹, Benton Otieno²

¹Crop Science Discipline, University of KwaZulu-Natal, Pietermaritzburg, South Africa.

Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering

|January 11, 2025

概括

臭氧溶解是处理分散废水处理系统 (DEWATS) 废水的最有效的先进氧化工艺 (AOP),可以在没有再生的情况下实现显著的病原体减少. 这为水的再利用提供了一个有希望的替代工程湿地.

科学领域:

环境工程环境工程
水处理技术水处理技术
先进的氧化过程先进的氧化过程

背景情况:

分散废水处理系统 (DEWATS) 需要先进的抛光,以便重新使用水.
建筑湿地是一种常见但空间密集的抛光方法.
先进的氧化工艺 (AOP) 为 DEWATS 废水处理提供了一个潜在的替代方案.

研究的目的:

为了优化和比较AOP (臭氧化,UV光解,TiO2光催化) 用于DEWATS废水抛光.
评估病原体减少,再生潜力和对水质参数的影响.
确定废水再利用应用中最有效的AOP.

主要方法:

使用臭氧分解,紫外线光解和TiO2光催化,抛光来自DEWATS的无氧过器 (AF) 废水.
评估病原体 (大肠杆菌,大肠杆菌总体) 的减少和再生.
监测物理参数 (pH,EC,度),有机物质 (COD,BOD,DOC,humic) 和营养物质 (氨,酸盐,ortho-P) 的情况.

主要成果:

臭氧化和TiO2光催化实现了6.4-log的病原体减少;紫外线光解实现了6-log.
臭氧溶解阻止了病原体的再生,而TiO2和UV光解显示了再生.
臭氧溶解显著改善了废水质量,减少了BOD,COD,humics和度,没有再生.

结论:

臭氧溶解是DEWATS废水抛光的最有效的AOP,提供优越的病原体无活化,无需重新生长.
臭氧溶解显示出作为废水再利用建设湿地的有效替代品的潜力.
可能需要进一步优化TiO2光催化和UV光解,以减轻再生问题.

关键词:

先进的氧化过程具有先进的氧化过程.二氧化光催化剂的光催化紫外线光解是一种UV光解.无氧过器废水排放物臭氧溶解是一种臭氧溶解.

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