Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater
    3.
    发明授权
    Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater 有权
    减少废水中溶解和/或常压硫化物的硝酸盐需求的方法和装置

    公开(公告)号:US07285207B2

    公开(公告)日:2007-10-23

    申请号:US11176018

    申请日:2005-07-07

    IPC分类号: C02F3/00

    摘要: A method and apparatus for treating wastewater streams by adding, either separately or as a mixture, a nitrate containing compound and an alkaline material in an amount sufficient to achieve a lower concentration of atmospheric hydrogen sulfide and dissolved sulfides downstream of the addition as compared to the atmospheric hydrogen sulfide and dissolved sulfides present in the wastewater stream prior to the addition. By adding alkaline material in addition to a nitrate containing compounds, the amount of nitrate containing compound added can be reduced by at least 10% as compared to the amount of nitrate that would theoretically need to be added in the absence of alkaline material to achieve a comparable lower concentration of atmospheric hydrogen sulfide and dissolved sulfides in the wastewater stream.

    摘要翻译: 一种用于处理废水流的方法和装置,该方法和装置分别或作为混合物,以足以实现较低浓度的大气硫化氢和溶解硫化物的浓度加入添加物中的硝酸盐含量化合物和碱性物质,与 大气中的硫化氢和溶解的硫化物存在于废水流中。 除了含硝酸盐化合物之外,通过添加碱性物质,与在不存在碱性物质的情况下理论上需要添加的硝酸盐的量相比,添加的含硝酸盐化合物的量可以降低至少10%,以达到 可比较的废水中较低浓度的大气硫化氢和溶解硫化物。

    DOSING CONTROL SYSTEM AND METHOD
    4.
    发明申请
    DOSING CONTROL SYSTEM AND METHOD 审中-公开
    控制系统和方法

    公开(公告)号:US20110168609A1

    公开(公告)日:2011-07-14

    申请号:US13011012

    申请日:2011-01-21

    IPC分类号: C02F1/70 C02F1/00 B01D35/00

    摘要: A method and system of controlling addition of a treating agent based on a control function comprising a plurality of demand values is disclosed. Process parameters of a fluid to be treated are measured and one or more control signals are generated based on the measured process values and the control function. The control signals are used to actuate a treating agent dosing system and also used to monitor and compare the levels, status or condition of the treating agent. Additional features of the invention compensate for rain events.

    摘要翻译: 公开了一种基于包括多个需求值的控制功能来控制加工处理剂的方法和系统。 测量待处理流体的工艺参数,并根据所测量的过程值和控制功能生成一个或多个控制信号。 控制信号用于致动处理剂剂量系统,​​并用于监测和比较处理剂的含量,状态或状况。 本发明的附加特征补偿下雨事件。

    Methods for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater
    5.
    发明授权
    Methods for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater 有权
    降低废水中溶解和/或常压硫化物的硝酸盐需求的方法

    公开(公告)号:US07087172B2

    公开(公告)日:2006-08-08

    申请号:US10700381

    申请日:2003-11-04

    IPC分类号: C02F3/00

    摘要: A method and apparatus for treating wastewater streams by adding, either separately or as a mixture, a nitrate containing compound and an alkaline material in an amount sufficient to achieve a lower concentration of atmospheric hydrogen sulfide and dissolved sulfides downstream of the addition as compared to the atmospheric hydrogen sulfide and dissolved sulfides present in the wastewater stream prior to the addition. By adding alkaline material in addition to a nitrate containing compounds, the amount of nitrate containing compound added can be reduced by at least 10% as compared to the amount of nitrate that would theoretically need to be added in the absence of alkaline material to achieve a comparable lower concentration of atmospheric hydrogen sulfide and dissolved sulfides in the wastewater stream.

    摘要翻译: 一种用于处理废水流的方法和装置,该方法和装置分别或作为混合物,以足以实现较低浓度的大气硫化氢和溶解硫化物的浓度加入添加物中的硝酸盐含量化合物和碱性物质,与 大气中的硫化氢和溶解的硫化物存在于废水流中。 除了含硝酸盐化合物之外,通过添加碱性物质,与在不存在碱性物质的情况下理论上需要添加的硝酸盐的量相比,添加的含硝酸盐化合物的量可以降低至少10%,以达到 可比较的废水中较低浓度的大气硫化氢和溶解硫化物。

    Gas treatment systems and methods
    6.
    发明授权
    Gas treatment systems and methods 有权
    气体处理系统和方法

    公开(公告)号:US08318476B2

    公开(公告)日:2012-11-27

    申请号:US11799742

    申请日:2007-05-02

    IPC分类号: A61L9/01 C02F3/34

    摘要: Systems and methods for biological and chemical gas treatment are disclosed. The systems may generally include a biological treatment zone and a chemical oxidation zone. An oxidizing agent subsystem may deliver an oxidizing agent, such as chlorine dioxide, to the chemical oxidation zone. The oxidizing agent subsystem may generate the oxidizing agent in situ from a product of the biological treatment zone. The oxidizing agent subsystem may include a reaction chamber and a source of a reactant, such as an alkaline metal chlorite reservoir. A controller may be in communication with various sensors and other components to generally manage operation of the disclosed systems.

    摘要翻译: 公开了用于生物和化学气体处理的系统和方法。 该系统通常可包括生物处理区和化学氧化区。 氧化剂子系统可将氧化剂(例如二氧化氯)输送到化学氧化区。 氧化剂子系统可以从生物处理区的产物原位产生氧化剂。 氧化剂子系统可以包括反应室和反应物源,例如碱金属亚氯酸盐储存器。 控制器可以与各种传感器和其他部件通信,以一般地管理所公开的系统的操作。

    Apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater
    7.
    发明授权
    Apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater 有权
    用于减少硝酸盐需要减少废水中溶解和/或常压硫化物的装置

    公开(公告)号:US07138049B2

    公开(公告)日:2006-11-21

    申请号:US11176764

    申请日:2005-07-07

    IPC分类号: C02F3/00 B01D21/30

    摘要: A method and apparatus for treating wastewater streams by adding, either separately or as a mixture, a nitrate containing compound and an alkaline material in an amount sufficient to achieve a lower concentration of atmospheric hydrogen sulfide and dissolved sulfides downstream of the addition as compared to the atmospheric hydrogen sulfide and dissolved sulfides present in the wastewater stream prior to the addition. By adding alkaline material in addition to a nitrate containing compounds, the amount of nitrate containing compound added can be reduced by at least 10% as compared to the amount of nitrate that would theoretically need to be added in the absence of alkaline material to achieve a comparable lower concentration of atmospheric hydrogen sulfide and dissolved sulfides in the wastewater stream.

    摘要翻译: 一种用于处理废水流的方法和装置,该方法和装置分别或作为混合物,以足以实现较低浓度的大气硫化氢和溶解硫化物的浓度加入添加物中的硝酸盐含量化合物和碱性物质,与 大气中的硫化氢和溶解的硫化物存在于废水流中。 除了含硝酸盐化合物之外,通过添加碱性物质,与在不存在碱性物质的情况下理论上需要添加的硝酸盐的量相比,添加的含硝酸盐化合物的量可以降低至少10%,以达到 可比较的废水中较低浓度的大气硫化氢和溶解硫化物。

    Dosing control system and method
    8.
    发明授权
    Dosing control system and method 有权
    剂量控制系统及方法

    公开(公告)号:US07905245B2

    公开(公告)日:2011-03-15

    申请号:US11542649

    申请日:2006-10-02

    IPC分类号: B01D17/12

    摘要: A method and system of controlling addition of a treating agent based on a control function comprising a plurality of demand values is disclosed. Process parameters of a fluid to be treated are measured and one or more control signals are generated based on the measured process values and the control function. The control signals are used to actuate a treating agent dosing system and also used to monitor and compare the levels, status or condition of the treating agent. Additional features of the invention compensate for rain events.

    摘要翻译: 公开了一种基于包括多个需求值的控制功能来控制加工处理剂的方法和系统。 测量待处理流体的工艺参数,并根据所测量的过程值和控制功能生成一个或多个控制信号。 控制信号用于致动处理剂剂量系统,​​并用于监测和比较处理剂的含量,状态或状况。 本发明的附加特征补偿下雨事件。