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    • 4. 发明申请
    • ACTIVATED SLUDGE WASTEWATER TREATMENT PROCESS
    • 活性污泥废水处理工艺
    • WO02059044A3
    • 2003-03-06
    • PCT/US0201146
    • 2002-01-16
    • RHODIASMITH STEPHEN ABROWN HOWARD E C
    • SMITH STEPHEN ABROWN HOWARD E C
    • C02F1/66C02F3/12C02F3/34
    • C02F3/1221C02F1/66C02F3/342Y02W10/15
    • There is provided a process for treating industrial wastewater (11) that substantially eliminates the generation of excess solids in the system requiring mechanical removal. The wastewater undergoes an equalization step (14, 16) wherein hydraulic flow is smoothed and the pH of the wastewater is adjusted to near neutral ph conditions. The equalized wastewater (17) is then transferred to aeration tanks (20, 22) where the organic process wastes are absorbed, metabolized, or otherwise biodegraded by the micro-organisms in the mixed liquor in the aeration tanks. After the aeration step, the wastewater is separated by gravity in a clarifying step to separate the wastewater into a liquid phase and a semi-solid phase. The clarified liquid phase (30) is withdrawn from the clarifier and discharged, while the semi-solid phase is transferred either directly back to the Aeration/biological treatment step, as recycle-activated sludge (36), or into a bioreactor (32) as waste-activated sludge. In the bioreactor the semi-solid phase is subjected to active aeration. The aerated waste activated sludge is then batch-recycled to the equalization tank (14, 16) discharging to the aeration step where it is mixed into newly introduced untreated wastewater and undergoes a new cycle of biological treatment. As a result of the indirect batchrecycling of bioreactor waste-activated sludge into the mixed liquor (biomass containing waste sludge) under aeration, which is also receiving recycle-activated sludge and enzymes, the excess solids generated in this process virtually eliminated.
    • 提供了一种处理工业废水(11)的方法,其基本上消除了在需要机械去除的系统中产生过量的固体。 废水进行平衡步骤(14,16),其中水力流平滑,并将废水的pH调节至接近中性pH条件。 然后将均衡的废水(17)转移到曝气池(20,22)中,其中有机过程废物被曝气池中的混合液体中的微生物吸收,代谢或以其它方式生物降解。 在曝气步骤之后,在澄清步骤中通过重力分离废水以将废水分离成液相和半固相。 将澄清的液相(30)从澄清器中排出并排出,同时半固相直接返回到曝气/生物处理步骤,作为再循环活性污泥(36)或转移到生物反应器(32)中, 作为废活性污泥。 在生物反应器中,半固相进行主动曝气。 然后将曝气废物活性污泥分批循环到均化罐(14,16)中,排放到曝气步骤,将其混入新引入的未处理废水中,并进行新的生物处理循环。 由于生物反应器废物活性污泥在曝气中间接批量循环进入混合液(含生物质的废污泥),这也是接收再循环活性污泥和酶,在此过程中产生的过量固体几乎消除了。
    • 8. 发明申请
    • WASTEWATER TREATMENT PROCESS
    • 废水处理工艺
    • WO2002059044A2
    • 2002-08-01
    • PCT/US2002/001146
    • 2002-01-16
    • RHODIA, INC.SMITH, Stephen, A.BROWN, Howard, E. C.
    • SMITH, Stephen, A.BROWN, Howard, E. C.
    • C02F
    • C02F3/1221C02F1/66C02F3/342Y02W10/15
    • There is provided a process for treating industrial wastewater that substantially eliminates the generation of excess solids in the system requiring mechanical removal. The wastewater undergoes an equalization step wherein hydraulic flow is smoothed and the ph of the wastewater is adjusted to near neutral ph conditions. The equalized wastewater is then transferred to aeration tanks where the organic process wastes are absorbed, metabolized, or otherwise biodegraded by the micro-organisms in the mixed liquor in the aeration tanks. After the aeration step, the wastewater is separated by gravity in a clarifying step to separate the wastewater into a liquid phase and a semi-solid phase. The clarified liquid phase is withdrawn from the clarifier and discharged, while the semi-solid phase is transferred either directly back to the Aeration/biological treatment step, as recycle-activated sludge, or into a bioreactor as waste-activated sludge. In the bioreactor the semi-solid phase is subjected to active aeration. The aerated waste activated sludge is then batch-recycled to the equalization tank discharging to the aeration step where it is mixed into newly introduced untreated wastewater and undergoes a new cycle of biological treatment. As a result of the indirect batchrecycling of bioreactor waste-activated sludge into the mixed liquor (biomass containing waste sludge) under aeration, which is also receiving recycle-activated sludge and enzymes, the excess solids generated in this process virtually eliminated.
    • 提供了一种处理工业废水(11)的方法,其基本上消除了在需要机械去除的系统中产生过量的固体。 废水进行平衡步骤(14,16),其中水力流平滑,并将废水的pH调节至接近中性pH条件。 然后将均衡的废水(17)转移到曝气池(20,22)中,其中有机过程废物被曝气池中的混合液体中的微生物吸收,代谢或以其它方式生物降解。 在曝气步骤之后,在澄清步骤中通过重力分离废水以将废水分离成液相和半固相。 将澄清的液相(30)从澄清器中排出并排出,同时半固相直接返回到曝气/生物处理步骤,作为再循环活性污泥(36)或转移到生物反应器(32)中, 作为废活性污泥。 在生物反应器中,半固相进行主动曝气。 然后将曝气废物活性污泥分批循环到均化罐(14,16)中,排放到曝气步骤,将其混入新引入的未处理废水中,并进行新的生物处理循环。 由于生物反应器废物活性污泥在曝气中间接批量循环进入混合液(含生物质的废污泥),这也是接收再循环活性污泥和酶,在此过程中产生的过量固体几乎消除了。
    • 9. 发明申请
    • UPGRADEABLE PASSIVE OPTICAL NETWORK
    • 可升级被动光网络
    • WO2007047697A1
    • 2007-04-26
    • PCT/US2006/040597
    • 2006-10-17
    • FUJITSU LIMITEDBOUDA, MartinSMITH, Stephen, A.
    • BOUDA, MartinSMITH, Stephen, A.
    • H04J14/02
    • H04J14/02H04B10/272H04J14/0226H04J14/0227H04J14/0232H04J14/0246H04J14/0247H04J14/0252H04J14/0282H04Q11/0005H04Q11/0067
    • In accordance with the teachings of the present invention, an upgradeable passive optical network is provided. In a particular embodiment, an upgradeable optical network includes an upstream terminal and a distribution node. The upstream terminal is operable to forward a downstream signal comprising traffic in a first wavelength, the traffic in the first wavelength transmitted by a first transmitter at the upstream terminal. The distribution node is communicatively coupled to the upstream terminal and is operable to communicate the downstream signal from the upstream terminal to a first plurality and a second plurality of downstream terminals. The distribution node comprises a primary power splitter configured to create a plurality of copies of the downstream signal for communication to the downstream terminals. The distribution node is configured to facilitate the addition of a wavelength router at a section of the distribution node such that the wavelength router may be added to the distribution node without interrupting the communication of traffic through the network and such that the addition of the wavelength router allows for routing of traffic in a second wavelength transmitted by a second transmitter to be added at the upstream terminal, the traffic destined for the first plurality of downstream terminals; and routing of traffic in a third wavelength transmitted by a third transmitter to be added at the upstream terminal, the traffic destined for the second plurality of downstream terminals.
    • 根据本发明的教导,提供了可升级的无源光网络。 在特定实施例中,可升级光网络包括上游终端和分发节点。 所述上游终端可操作地转发包括第一波长的业务的下行信号,所述第一波长的业务由所述上游终端处的第一发射机发送。 分发节点通信地耦合到上游终端,并且可操作以将来自上游终端的下游信号传送到第一多个和第二多个下游终端。 分配节点包括主功率分配器,其被配置为创建用于与下游终端通信的下游信号的多个副本。 分发节点被配置为便于在分发节点的一部分处添加波长路由器,使得波长路由器可以被添加到分发节点而不中断通过网络的业务的通信,并且使得添加波长路由器 允许由第二发射机发送的第二波长的业务路由,以在上游终端添加,指向第一多个下游终端的业务; 以及由第三发射机发送的第三波长的业务路由,以在上游终端添加,所述业务指向第二多个下游终端。