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首页> 外文期刊>International Journal of Environmental Science and Technology >Clogging reduction and removal of hormone residues with laboratory-scale vertical flow organic-based filter and hybrid wetland
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Clogging reduction and removal of hormone residues with laboratory-scale vertical flow organic-based filter and hybrid wetland

机译：使用实验室规模的垂直流有机滤池和混合湿地来减少和去除激素残留物的堵塞

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摘要

A laboratory-scale, intermittently fed, organic-based vertical flow filter was tested as a pre-treatment of high-strength urban wastewater to reduce the risk of clogging in treatment wetlands. At an average hydraulic loading rate of 815 L/m(2) day and average surface loading rates of biological oxygen demand of 458 g/m(2) day, chemical oxygen demand of 594 g/m(2) day and suspended solids of 310 g/m(2) day, the organic-based vertical flow filter achieved removal efficiencies of 48 % of biological oxygen demand, 45 % of chemical oxygen demand, 69 % of suspended solids and 51 % of turbidity. For this unit, removals were significantly correlated with organic surface loading rates but not with hydraulic loading rate. Additionally, the organic-based vertical flow filter removed almost completely the hormone residues studied: estrone, 17 beta-estradiol, 17 beta-ethynyl estradiol, diethylstilbestrol, estriol, norethisterone and testosterone, most probably by the combination of adsorption onto the organic substrate and biodegradation. The efficiency of the combined system was remarkable for biological oxygen demand (97 %), chemical oxygen demand (89 %), suspended solids and turbidity (99 %), fecal coliforms and E. coli (99.9 %) and fecal enterococci (99 %).
机译：测试了实验室规模的间歇性进料有机基立式流量过滤器，作为高强度城市废水的预处理，以减少处理湿地被堵塞的风险。在815 L / m（2）天的平均水力负荷率和458 g / m（2）天的生物需氧量的平均表面负荷率，594 g / m（2）天的化学需氧量和每天310 g / m（2），基于有机物的立式流量过滤器的去除效率为生物需氧量的48％，化学需氧量的45％，悬浮固体的69％和浊度的51％。对于该单元，清除量与有机表面负荷率显着相关，但与水力负荷率无关。此外，基于有机物的垂直流滤器几乎完全去除了所研究的激素残留物：雌酮，17β-雌二醇，17β-乙炔基雌二醇，己二烯雌酚，雌三醇，炔诺酮和睾丸激素，很可能是通过吸附到有机底物和生物降解。组合系统的效率在生物需氧量（97％），化学需氧量（89％），悬浮固体和浊度（99％），粪便大肠菌和大肠杆菌（99.9％）和粪便肠球菌（99％）方面非常出色）。

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