沸石生物联合吸附再生工艺参数优化研究
Study on parameter optimization of zeolite enhanced contact-adsorption regeneration-stabilization process
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摘要: 简述了沸石生物联合吸附再生工艺(ZCS工艺)的工艺原理,选取了影响沸石生物联合吸附再生工艺污水处理效果的影响因素,通过正交实验,优化了工艺的运行参数。在优化结果为泥龄(SRT)40 d、沸石投加量16.8 g/L、外回流比(R)1、内回流比(r)1、A池碳源投加比(m)0、吸附池溶解氧(DO吸)1 mg/L和O池溶解氧(DOO)2 mg/L的条件下稳定运行后,出水水质达到《城镇污水处理厂污染物排放标准》(GB18918-2002)中一级B标准的要求。Abstract: The principle of zeolite enhanced contact-adsorption regeneration-stabilization process (ZCS process) was briefly stated in the paper, and then the effects of different factors on longterm treatment efficiency of ZCS Process were studied according to the orthogonal experiments. The results of parameter optimization were: SRT of 40 d, zeolite powder dose of 16.8 g/L, Rof 1, r of 1, m of 0, DOa of 1 mg/L and DOO of 2 mg/L. Under the optimal conditions, the concentrations of ammonia and TN in effluent could meet grade B of the first level in “Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant of China (GB18918-2002)”.
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Key words:
- zeolite /
- parameter optimization /
- orthogonal experiment
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