• 总氮气（TN）和总磷（TP）降低至3mg / L和0.3 mg / L.

Carrousel®系统自20世纪70年代末以来，为处理废水提供了可靠的方法。有超过700个安装，从那时起已经引入了许多创新

目前可用六种不同的流程图，包括Bardenpho®系统。我们最常见的系统是具有自由内部回收的A2C™系统，用于生化需氧量（BOD），总氮（TN）和总磷（TP）减少到美国最低许可限额。还提供了新的Alternatir™系统，可在两级系统中减少BOD，TN和TP，无需内部回收泵送。许多独特的设计也被交付，包括环绕澄清器结构和同心环厂或刷子厂改造。

Key components of a Carrousel system are the high efficiency Excell® aerator, the nutrient-destroying EliminatIR™ gate , and the operator-friendly Oculus™ control system.

Excell® Aerator 有效地提供Carrousel盆地所需的所有通气和混合。 3.85 lb O2/HP-hr 电源调低高达90％ 1 man day of maintenance/year 你保持干净！- 甲板下方没有维护

Oculus™ System “全部看到眼睛”的过程 用户友好的界面 高效曝气控制 优化的营养消除 节约能源 Reduce chemical dependency Remote access

elpinatir™门 Internal Recycle (IR) control 自动广告justs to maximize denitrification 0-12Q之间的IR率 Anaerobic cycling for phosphorus removal

The Excell aerator with the high efficiency surface impeller and the floor-scouring lower turbine efficiently provides aeration at full speed and at 80-90% turndown (drawing 10-20% nameplate power), while still maintaining sufficient mixing in the basin. The Excell aerator offers the best energy savings and dissolved oxygen control on the market.

The EliminatIR gate controls internal recycle from the aerobic zone to the anoxic zone while never drawing more than ½ a horsepower, saving significantly on power and maintenance compared to pumped systems. The EliminatIR gate comprises an electrically-actuated gate that regulates flow through the internal recycle channel.

With greater reliability of instrumentation today, the Oculus control system may be used to enhance operations to save energy and reduce nutrients. In its simplest form, the Oculus control system controls aeration with a DO probe and controls nitrate with an ORP or nitrate probe. Additional analyzers available are ammonia, mixed liquor suspended solids, pH, and phosphorus, which can be incorporated into the Excell aerator and EliminatIR gate control algorithms within the Oculus control system.

对于缺氧和厌氧区，可提供平台安装的混合器和潜水混合器。

Adding membrane digestion or the ProSet™ clarifier is a great way to minimize nutrient release from the sludge handling process.

在那里有了如此多的Carrousel系统，改造是一个Cinch，可以将这些较旧的安装带到更新的技术。联系Salt Lake CityOvivo®办公室或您当地的代表以了解更多信息。

Carrousel系统如何防止风暴流动？

Carrousel系统具有大量的内部混合。每滴水通过曝气区100次在它留下流出物堰之前。这允许有机载荷的阻尼效果。新的Eliminatir™门也可用于在峰值事件期间存储固体。

Carrousel系统如何对待这种低营养限制？

Carrousel systems have been around since the advent of nutrient removal in the United States, the late 1970s. A combination of dedicated volumes (aerobic, anoxic, and anaerobic) with unlimited and free (no pumps required) internal recycle allows for a TN of less than 3 mg/L and a TP of less than 0.3 mg/L, or even lower. Recent research has suggested that the combination of repeated floc shear in the aeration zones and the reflocculation in the long channel zones significantly enhances simultaneous nitrification/denitrification as well.

为什么Carrousel系统如此一致地满足低营养限制？

The power turndown of the Excell aerator can reach 90%, so DO (dissolved oxygen) control even at low flows is no problem. Preventing overation is the key to good, consistent biological nutrient removal, and lack of power turndown is a reason so many other systems fail or need large amounts of chemicals to make up for this deficiency. In addition, the free internal recycle (with no pumps) from the aeration zone to the anoxic zone can reach very high values (IR/Q can be >10), allowing for large denitrification rates.

Carrousel系统体积大吗？

Carrousel systems are designed like any system that operates with CSTR (complete stirred tank reactor) kinetics using common activated sludge modeling software (although Ovivo does use a proprietary model for biological treatment and optimum hydraulics). The long SRT (solids retention time) systems are a thing of the past. Most Carrousel systems are designed at a 6 to 15 day SRT depending on climate and treatment objectives.

Carrousel Systems是否占地面积大？

Carrousel systems can be much deeper in SWD (sidewater depth) than competing systems. With draft tube aerator technology and our unique Excell aerator, designs of 23-25 feet SWD are possible. We have three such systems operating in the United States.

为什么Carrousel系统如此受欢迎？

Quite simply, Carrousel systems are the most operator-friendly system on the market that can easily meet the most stringent permit limits in the United States.

是否需要许可费？

不

我的工厂需要什么配置？

In general, refer to the可用的流量表. Ovivo process engineers will develop a proposal specific to your plant.

How many Carrousel system installations are out there?

超过700个Carrousel系统仅安装在美国！