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    • 4. 发明授权
    • Injection control system of flocculating agent
    • 絮凝剂注射控制系统
    • US4783269A
    • 1988-11-08
    • US37157
    • 1987-04-10
    • Kenji BabaShoji WatanabeNaoki HaraMikio YodaShunji MoriShunsuke NogitaYuzi YamasawaToshimitu Akiyama
    • Kenji BabaShoji WatanabeNaoki HaraMikio YodaShunji MoriShunsuke NogitaYuzi YamasawaToshimitu Akiyama
    • C02F1/52C02F1/68G01N33/18
    • C02F1/685C02F1/5281
    • An injection control system of a flocculating agent comprises: a flocculating pool into which the inflow liquid flocculating agent is injected and which forms flocs of suspended matters in the liquid; flocculating agent injecting means for injecting the flocculating agent into the flocculating pool; floc image pickup means for photographing a state of the flocs in the flocculating pool and for converting luminance data of the flocs into an electric signal; image recognizing means for recognizing the shape of floc by binarizing the image signal derived from the floc image pickup means on the basis of a luminance level of each pixel; flocculation state deciding means for calculating a characteristic amount of a diameter distribution of the flocs on the basis of the floc shapes recognized by the image recognizing means; and injection amount control means for controlling an amount of the flocculating agent which is injected from the flocculating agent injecting means on the basis of the characteristic amount.
    • 絮凝剂的注射控制系统包括:絮凝池,流入液体絮凝剂注入其中并在悬浮液中形成絮凝物; 用于将絮凝剂注入絮凝池的絮凝剂注入装置; 絮凝图像拾取装置,用于拍摄絮凝池中的絮状物的状态并将絮状物的亮度数据转换为电信号; 图像识别装置,用于通过基于每个像素的亮度级对来自絮状图像拾取装置的图像信号进行二值化来识别絮体的形状; 絮凝状态决定装置,用于根据由图像识别装置识别的絮状形状来计算絮凝物的直径分布的特征量; 以及喷射量控制装置,用于根据特征量控制从絮凝剂喷射装置喷射的絮凝剂的量。
    • 6. 发明授权
    • Process for controlling an aeration tank in an activated sludge sewage
treatment
    • 控制曝气池在活性污泥污水处理中的应用
    • US4437992A
    • 1984-03-20
    • US355110
    • 1982-03-05
    • Yukio SaitoShunsuke NogitaSyoji WatanabeKenji Baba
    • Yukio SaitoShunsuke NogitaSyoji WatanabeKenji Baba
    • C02F3/12B23D61/04C02F3/00G01N33/18
    • C02F3/006B23D61/04G01N33/1806G01N33/1866Y02W10/15
    • It is necessary for maintaining a good assimilating characteristic of microorganisms upon organic matter in an aeration tank to control a gas flow rate and a return sludge flow rate to optimum values. To this effect, it is necessary to know a concentration of organic matter or a organic load. In the present invention, it is confirmed that carbon dioxide (CO.sub.2) or nitrous oxide (N.sub.2 O) in an exhaust gas from the aeration tank has a correlation with it, and the aeration tank is controlled as N.sub.2 O or CO.sub.2 as an index. Furthermore, it is confirmed that CO.sub.2 formation rate has a good correlation with COD or BOD in the upstream half section of the aeration tank, whereas N.sub.2 O formation rate has a good correlation with COD or BOD in the latter half section thereof along sewage flow direction, and more improved control can be attained by a combination of both CO.sub.2 and N.sub.2 O indices.
    • 在曝气池中保持微生物对有机物质的良好吸收特性是必要的,以将气体流速和返回污泥流量控制到最佳值。 为此,有必要了解有机物或有机负载的浓度。 在本发明中,确认来自曝气槽的废气中的二氧化碳(CO 2)或一氧化二氮(N 2 O)与其相关,曝气池被控制为N 2 O或CO 2作为指标。 此外,证实了CO 2形成速率与曝气池上游半部分的COD或BOD有很好的相关性,而N2O的形成速率与沿着污水流动方向的后半部分的COD或BOD有很好的相关性, 并且通过CO 2和N 2 O指数的组合可以获得更好的控制。