2种氧化法对模拟水产养殖废水净化效果Purification Effect of Two Oxidation Methods on Simulated Aquaculture Tail Water
叶丙聪,吕布,周建聪,张兴志,郑兴,顾志峰
摘要(Abstract):
【目的】比较电化学氧化法和臭氧氧化法两种氧化法对模拟水产养殖废水中营养盐的净化效果。【方法】通过将添加药物的模拟养殖废水随机分成电化学实验组和臭氧实验组,利用电化学和臭氧两种氧化法对模拟养殖废水进行处理,分别监测硝酸盐、亚硝酸盐、氨氮以及正磷酸盐随时间延长的去除效果。【结果】电化学和臭氧两种氧化法对废水中硝酸盐、亚硝酸盐、氨氮以及正磷酸盐分别处理15 h后,其质量浓度均呈下降趋势,净化效果差异极显著(P <0.01)。在处理6 h后,臭氧处理组的亚硝酸盐质量浓度显著低于电化学处理组(P <0.01),分别为2.96 mg/L和18.63 mg/L;在处理13~15 h时,臭氧处理组的硝酸盐质量浓度显著低于电化学处理组(P <0.05),分别为3.45 mg/L和10.68 mg/L;在处理1 h后,臭氧处理组氨氮质量浓度始终显著低于电化学处理组(P <0.05);而正磷酸盐的质量浓度在处理15 h后,电化学处理组质量浓度显著低于臭氧处理组(P <0.05),分别为114.98 mg/L和134.30 mg/L。【结论】较之电化学氧化法,臭氧氧化法对模拟海水养殖废水营养盐中的硝酸盐、亚硝酸盐和氨氮处理效果更好,而对正磷酸盐处理效果相对较差。
关键词(KeyWords): 电化学氧化法;臭氧氧化法;养殖废水;硝酸盐;亚硝酸盐;氨氮;正磷酸盐;水质净化
基金项目(Foundation): 国家自然科学基金(31772847);; 国家重点研发计划项目(2018YFD0900704);; 海南大学科研启动基金(KYQD(ZR)20061)
作者(Author): 叶丙聪,吕布,周建聪,张兴志,郑兴,顾志峰
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