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〔讨论〕常规的脱氮除磷工艺是否能达到一级A标准??

发布于:2006-09-26 17:38:26 来自:环保工程/水处理 [复制转发]
常规的脱氮除磷工艺是否能达到一级A标准??

现在对污水厂的出水要求越来越高,如果使用常规的脱氮除磷工艺,不加深度处理,是否能达到一级A标准,

有没有同行做过案例,

我以前做的都是达到一级B标准,和几个同事讨论,常规工艺到达一级A感觉有点不保险,
主要指标:COD:60→50;氨氮:8→5;TP:1→0.5,BOD:20→10;SS:20→10

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  • jyqlxw
    jyqlxw 沙发
    你们真敢说,不要张嘴国外,闭嘴国外
    目前国内有达标的BAF吗????
    2009-08-11 10:39:11

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  • xiaoyu188
    xiaoyu188 板凳
    我们现在有一项成熟的技术,可以快速提升现有活性污泥系统的能力(COD和氨氮)和稳定性, 可用于1B到1A的改造。该技术安装和维护可以在不停车的情况下进行。有愿意合作,请电邮到wastewater@live.cn,留下公司名称和联系方式。


    The Apex System, added to existing activated sludge systems, increases the effective Mixed Liquor Suspended Solids (MLSS) inventory of the system without increasing solids loading to the clarifier. This economical, easy-to-install system upgrades a wastewater treatment facility without increasing tankage. The Apex system requires no additional maintenance and installs with little or no disruption to plant operations.

    Increased Capacity

    The flexible, high-surface-area media is submerged in the activated sludge tanks to provide extensive surface area for biomass growth. The attached biomass population can increase the effective MLSS concentration by over 3000-4000 mg/l, increasing organic load capacity. This also reduces F/M ratios, improving process control and stability

    Higher MLSS Without Higher Clarifier Solids Loading

    Because a significant portion of the active biomass remains attached to the Apex rather than suspended in the mixed liquor, organic removal increases without overloading secondary clarifiers with higher solids loads. For activated sludge systems with clarifier solids loading problems, treatment performance can be maintained or even improved while reducing MLSS loading to the secondary clarifier.

    Resistant to Organic and Hydraulic Shock Loads

    An “Achilles Heel” of activated sludge technology is the potential for peak hydraulic surges to “wash out” the suspended biomass from the aeration basins. With Apex, a significant amount of biomass is fixed in place and is available to treat the incoming organic load that accompanies hydraulic surges

    Enhanced Nitrification

    The biomass living on the Apex media increases MCRT (Sludge Age), promoting nitrification. During cold weather and where lower compliance limits are imposed, the added biomass improves the performance of nitrifying plants, or even allows non-nitrifying plants to nitrify.

    Active Media Surface

    Apex media has a tensile strength in excess of 1000 lbs. per lineal foot, yet is flexible enough to move like “reeds in a stream.” This movement creates localized turbulence that constantly renews surface areas and promotes oxygen transfer.

    The total surface area available for biomass attachment at startup is up to 800 sq. ft. per cubic foot of installed media module. However, dry surface area does not tell the whole story. From those 800 sq. ft. of attachment points, the biomass grows underwater in 3 dimensions, creating flexible “branches” of non-blinding active surface area that can be measured in pounds per cubic foot, while still allowing for free flow of oxygenated wastewater through the media.

    Economical

    By improving wastewater treatment without adding aeration tankage or clarifiers, the Apex System is a low-cost solution to upgrading activated sludge plants.

    Easy to Install

    The entire Apex system can be installed without dewatering the aeration basin or modifying the aeration diffusers. The custom-sized/constructed Apex modules are lowered into the aeration basin with a crane and supported by the tank walls or on legs above the tank floor.

    Durable and Long-Lasting

    Apex is designed for durability and long life under the harsh conditions of an activated sludge aeration tank. The Apex media uses high-strength polyester. Even if a strand is cut or broken, the fabric will not fray or unravel.
    2008-01-30 16:18:30

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菜鸟有问?.

我有个问题想请教大家!在小型的污水处理工程当中,比如最近做的一个.生物接触氧化池和后续的斜管沉淀池可否连在一起,就是共用一墙体.而不是单独的两个池子.这是我的想法,有点菜.请大虾指点一 下.

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