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    • 8. 发明授权
    • Process and apparatus for the biological purification of sewage
    • 污水生物净化的工艺和设备
    • US4374730A
    • 1983-02-22
    • US215758
    • 1980-12-12
    • Alexandru BrahaHans DaucherKlaus HessPeter KroetzschHelmut MerkelRoland RoedlWalter SchwaegerlRichard Stickel
    • Alexandru BrahaHans DaucherKlaus HessPeter KroetzschHelmut MerkelRoland RoedlWalter SchwaegerlRichard Stickel
    • C02F3/12C02F3/30
    • C02F3/1294C02F3/12C02F3/301C02F3/302Y02W10/15Y10S210/903
    • A process for the biological purification of effluent which is contaminated with nitrogen in the form of ammonium, nitrite or nitrate ions or in the form of organic compounds, by oxidizing the nitrogen under aerobic conditions and reducing the nitrogen under anaerobic conditions, wherein the sewage to be treated, mixed with activated sludge, is subjected, in an aeration basin, to oxygen-containing gas bubbles introduced from below and is thereby simultaneously enriched with dissolved oxygen, to oxidize carbon compounds and nitrogen compounds, and transported upward, by the buoyancy of the gas bubbles, releases gas at the surface of the liquid and, due to the higher average density of the mixture of lower gas content, in part automatically again flows downward in the aeration basin, to undergo further aeration, while in part it overflows into a denitrification basin which communicates with the aeration basin through an opening at the liquid surface, and an opening at the bottom of the partition, is mixed, in the denitrification basin, with the contents thereof by mechanical means and flows back, through an opening near the bottom, in the partition, to the aeration basin.The invention further relates to an activated sludge basin, wherein jet aerators are arranged parallel, and horizontally, at the bottom of the basin, a vertical partition divides the basin into an aeration compartment and a denitrification compartment, both compartments possessing jet aerators, and passages in the partition connect the two compartments of the basin in the area of the surface of the liquid, and in the vicinity of the bottom.
    • 通过在有氧条件下氧化氮气并在厌氧条件下还原氮气的方法,用于以氮,亚硝酸盐或硝酸根离子的形式被氮污染或以有机化合物的形式污染的流出物的方法,其中将污水 与活性污泥混合,在曝气池中进行从下面引入的含氧气泡,从而同时富集溶解氧,氧化碳化合物和氮化合物,并向上运送,由浮力 气泡在液体表面释放气体,并且由于较低气体含量的混合物的更高的平均密度在曝气池中自动再次向下流动,以进一步曝气,同时部分地溢出 通过在液面上的开口与曝气池连通的反硝化池,在p底部的开口 在反硝化池中混合,其机械装置的内容物通过隔板底部的开口流回到曝气池。 本发明还涉及一种活性污泥池,其中喷射式曝气器平行布置,并且水平地布置在盆底部,垂直隔板将盆分为通气室和反硝化隔室,两个具有喷射曝气器的隔室和通道 在隔板的两个隔间连接液体表面区域和底部附近。