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首页> 外文期刊>Nature environment and pollution technology >Effects of Peat and Mushroom Residues on Removing Ammonia-Nitrogen and Total Phosphorus in Wastewater
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Effects of Peat and Mushroom Residues on Removing Ammonia-Nitrogen and Total Phosphorus in Wastewater

机译：泥炭和蘑菇残留物对废水中氨氮和总磷的去除效果

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Peat and mushroom residues were selected for adsorption isotherm and adsorption kinetics experimentsand to comparatively discuss the effects of removing ammonia-nitrogen and the total phosphorus inwastewater. The results showed that the peat and mushroom residues for removing ammonia-nitrogen and the total phosphorus followed the Freundlich and Langmuir equations of the adsorptionisotherm. By using a fitting equation, we obtained the static adsorption quantities of ammonia-nitrogen,which were 2.3679 mg/g and 2.1643 mg/g, and the static adsorption quantities of total phosphoruswere 1.4363 mg/g and 1.3758 mg/g. A first-order kinetics equation was used to fit the reactionprocess of the two-substrate adsorption of ammonia-nitrogen and the total phosphorus. The correlationcoefficients were all desirably above 0.990. Furthermore, the adsorption rates of ammonia-nitrogenwere 0.0088 g/(mg·min) and 0.0084 g/(mg·min), and the adsorption rates of the total phosphoruswere 0.001 g/(mg·min) and 0.0006 g/(mg·min). In a simulation of the soil percolation system, a volumeratio of 10% peat and 10% mushroom residues with different sizes of 0.5, 2 and 4 mm were mixedwith the soil in different treatments (T1-T6), and the control group was the soil (CK). The concentrationof ammonia-nitrogen in the wastewater was 54.45-78.96 mg/L, and the hydraulic loading was 0.08 m 3 /(m 2 ·d). The performance of seven types of experimental devices for removing ammonia-nitrogen in thewastewater was T2 > T3 > T1 > T6 > T5 > T4 > CK. The average concentration of ammonia-nitrogenin the effluent water was 65.58 mg/L, and the removal rate of ammonia-nitrogen and the total phosphorusreached 88.04-95.32% and 89.23-97.08%, respectively, which satisfied the additional minimum UWTDtreatment performance for a discharge to a sensitive area.
机译：选择泥炭和蘑菇残留物进行吸附等温线和吸附动力学实验，并比较讨论去除氨氮和废水中总磷的效果。结果表明，泥炭和蘑菇残留物用于去除氨氮和总磷符合吸附等温线的Freundlich和Langmuir方程。通过拟合方程，得出氨氮的静态吸附量分别为2.3679 mg / g和2.1643 mg / g，总磷的静态吸附量分别为1.4363 mg / g和1.3758 mg / g。利用一阶动力学方程拟合氨氮和总磷两基质吸附的反应过程。相关系数都希望高于0.990。此外，氨氮的吸附率为0.0088g /（mg·min）和0.0084g /（mg·min），总磷的吸附率为0.001g /（mg·min）和0.0006g /（mg·min）。分钟）。在土壤渗流系统的模拟中，在不同处理（T1-T6）下，将体积比为10％的泥炭和10％的蘑菇残渣（大小分别为0.5、2和4 mm）混合在一起，对照组为土壤（CK）。废水中氨氮浓度为54.45-78.96 mg / L，水力负荷为0.08 m 3 /（m 2·d）。七种去除废水中氨氮的实验装置的性能为：T2> T3> T1> T6> T5> T4> CK。废水中氨氮的平均浓度为65.58 mg / L，氨氮和总磷的去除率分别达到88.04-95.32％和89.23-97.08％，满足了污水排放的额外最小UWTD处理性能。到敏感区域。

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