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分子筛催化剂生产废水的生物处理

Environmental Protection of Chemical Industry(2014)

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Abstract
采用氨化—硝化—反硝化三段联合生物工艺处理分子筛催化剂生产过程中产生的含有机胺废水.实验结果表明:在氨化过程中,当进水COD稳定为1 200~1 600 mg/L时,出水COD低于300 mg/L,COD去除率稳定在80%左右,当进水ρ(有机氮)为100~160 mg/L时,出水ρ(有机氮)均低于30 mg/L,有机氮去除率大于80%,在整个氨化过程中,出水ρ(氨氮)较进水ρ(氨氮)提高了35~200 mg/L;硝化过程中,当进水ρ(氨氮)小于等于300 mg/L时,出水ρ(氨氮)最终稳定在15 mg/L以内,氨氮去除率大于90%;在反硝化过程中,亚硝酸盐氮去除率基本稳定在98%以上,最终出水COD低于80 mg/L,出水ρ(总氮)低于25 mg/L.
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Key words
wastewater,catalyst,bio-treatment
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