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    Method and apparatus for water treatment using screens
    2.
    发明授权
    Method and apparatus for water treatment using screens 有权

    公开(公告)号：US10287195B2

    公开(公告)日：2019-05-14

    申请号：US14032952

    申请日：2013-09-20

    申请人： D.C. Water & Sewer Authority

    发明人： Sudhir N. Murthy ,  Eugenio Giraldo ,  Norman D. Dockett ,  Haydee De Clippeleir ,  Bernhard Wett ,  Walter F. Bailey, Jr.

    IPC分类号： C02F3/00 ,  C02F3/12 ,  C02F3/28 ,  B01D36/00 ,  C02F3/30

    摘要： An apparatus and method for selecting, retaining or bioaugmenting solids in an activated sludge process for improving wastewater treatment using screens. The screens can be used to separate and retain solids based on size, compressibility or shear resistance. The screens are used to separate and select slow growing organisms, faster settling organisms, or materials added to absorb, treat or remove constituents in the activated sludge process. A swapping screen arrangement provides another means of selecting various particles. The exposed shear rate or time, particle compression, or SRTs can be adjusted manually and/or automatically in response to detected readings from an instrument such as a spectrophotometer or other optical approaches to optimize selection of organisms. The present disclosure may be configured as an activated sludge system operated at different solids residence times (SRT) for different solids fractions allowing slow growing organisms to get established in competition with faster growing organisms or aggregates thereof.

    METHOD AND APPARATUS FOR WATER TREATMENT USING SCREENS
    4.
    发明申请
    METHOD AND APPARATUS FOR WATER TREATMENT USING SCREENS 审中-公开
    使用屏幕进行水处理的方法和装置

    公开(公告)号：US20140083936A1

    公开(公告)日：2014-03-27

    申请号：US14032952

    申请日：2013-09-20

    申请人： D.C. Water & Sewer Authority

    发明人： Sudhir N. Murthy ,  Eugenio Giraldo ,  Norman D. Dockett ,  Haydee De Clippeleir ,  Bernhard Wett ,  Walter F. Bailey, JR.

    IPC分类号： C02F3/12 ,  C02F3/30

    CPC分类号： C02F3/00 ,  B01D36/00 ,  C02F3/006 ,  C02F3/12 ,  C02F3/1205 ,  C02F3/1221 ,  C02F3/1226 ,  C02F3/1236 ,  C02F3/2866 ,  C02F3/307 ,  C02F2209/005 ,  C02F2209/10 ,  C02F2209/105 ,  C02F2303/24 ,  Y02E50/343 ,  Y02W10/15

    摘要： An apparatus and method for selecting, retaining or bioaugmenting solids in an activated sludge process for improving wastewater treatment using screens. The screens can be used to separate and retain solids based on size, compressibility or shear resistance. The screens are used to separate and select slow growing organisms, faster settling organisms, or materials added to absorb, treat or remove constituents in the activated sludge process. A swapping screen arrangement provides another means of selecting various particles. The exposed shear rate or time, particle compression, or SRTs can be adjusted manually and/or automatically in response to detected readings from an instrument such as a spectrophotometer or other optical approaches to optimize selection of organisms. The present disclosure may be configured as an activated sludge system operated at different solids residence times (SRT) for different solids fractions allowing slow growing organisms to get established in competition with faster growing organisms or aggregates thereof.

    摘要翻译： 用于在活性污泥方法中选择，保留或生物固体固体的装置和方法，用于改善使用筛网的废水处理。 筛网可用于基于尺寸，压缩性或抗剪切性分离和保留固体。 屏幕用于分离和选择生长缓慢的生物，更快的沉降生物体或添加的物质以吸收，处理或去除活性污泥过程中的成分。 交换屏幕布置提供了选择各种粒子的另一种方法。 暴露的剪切速率或时间，颗粒压缩或SRT可以根据来自诸如分光光度计或其他光学方法的仪器的检测到的读数而手动和/或自动地调节以优化生物体的选择。 本公开内容可以被配置为在不同的固体残留时间（SRT）下操作用于不同固体部分的活性污泥系统，从而允许与较快生长的生物体或其聚集体竞争的生长缓慢的生物。