Dry scrubber — DFGT

清除有害污染物在烟气中is done in three steps: gas cooling, reagentinjection and filtering.擦洗系统包括添加剂，反应和居住室的剂量机制以及用于最终灰尘的袋过滤器。

Advantages

• Positive environmental impact. Dry scrubbers produces comparatively little waste material.
• 烟气在水的温度和烟气中最常见的酸性成分上方的温度下离开系统。这减少或消除了堆栈上可见的水蒸气羽流。
• Dry scrubbing reduces or eliminates corrosion issues.
• 袋过滤器的实施导致灰尘排放最低。它们通常小于5 mg/m3。
• Aerosol emmisions, such as “white smoke” are effectively captured in a bag filter.
• No make-up water required.
• 没有相关的费用，例如从湿洗涤器中取出，运输和存储废水。
• DI dry scrubbers are capable to achieve emission levels within EU regulations as a single step solution, depending upon the type of additive used, design of the system, acidic gas loads and dosing capacities.

缺点

• 干洗店通常具有较高的资本投资成本。
• The residual waste powder (fly ash) is highly toxic and must be safely disposed at a secured hazardouswaste landfill site,or sent to a specialist treatment plant.
• Dry scrubbers cannot remove 100% contaminants from the flue gas.

湿洗涤器 - wfgt

Flue gas isfunneledthrough an area and sprayed with a wet substance.Water is used as当要去除灰尘和颗粒物时循环流体，但是化学物质可以是added for heavier pollutants.As flue gases pass through the cleaning mist, contaminants are attracted to the mist and pulled outfromthe flue gases and attach to the liquid, because of its chemical composition.

Advantages

• Capability to achieve very low emission concentrations on acidic flue gas compounds, with relative simple technology.
• 能够吸收酸性烟气成分供应中的宽和快速波动。
• 可以达到相当低的灰尘排放浓度，通常低于50 mg/m³纠正（作为单步解决方案，它不足以符合欧盟法规）。
• Wet scrubbers can tolerate a wide range of temperatures, making them ideal for operation in almost any environment.
• 相对低的投资成本。
• Quite simple to operate and control.

缺点

• Water from工业质量需要以足够的量提供。
• Water treatment is required.可以通过焚化过程处理较小的废水数量。
• Maintaining PH within certain margins to avoid corrosion.

• A wet scrubbing process adds significant amounts of vapour to the exhaust, which causes the release of a “white vapour plume” when vented through the smokestack.

组合DFGT + WFGT

A combination of dry and wet flue gas treatment might be the best choice in specific cases. It results in the most optimum emission reduction solution, as the advantages and disadvantages of each option will be balanced and optimized.

添加剂

The choice of which additive to use, depends on the type of waste and contaminants to be removed. Operating costs could be considered as well.

We apply the following additives

Dry scrubbing

• 基于sodium bicarbonate(NaHCO₃). This relative new technology can achieve higher emission reduction efficiencies, resulting in lower operating costs. It’s our preferred option compared to conventional lime (calcium) based technologies.
• 除了干刷洗活性炭to capture dioxins and heavy metals.

Wet scrubbing

• Wet scrubbing based on苛性（NaOH），以稀释形式存在。

Filter bags

Catalytic FABRIC filter BAGS FOR DRY FLUE GAS TREATMENT.

A catalytic fabric filter bag consists of different fabric layers, whereas each layer contains a unique long life catalyst to decompose and remove multiple gaseous compounds.

在一个步骤中，没有注入活化的碳，催化织物过滤器将多达99％的二恶英和呋喃转化为无害的气态（主要是CO₂和h₂O), allowing them to be discharged safely through the smokestack. The catalytic performance for removing dioxins and furans and intercepting dust passes the strictest emission regulations.

Emission monitoring — CEMS

Flue gas emissions should be monitored on a continuous basis to ensure that final emissions constantly comply with the applicable regulations. A Continuous Emission Monitoring System (CEMS) permanently measures typical emission parameters e.g. SO₂, HCl, NO_x, HF, CO, O₂, H₂o，co₂，TOC，颗粒物，不透明度和更多组件。排放results are represented in the central control room and stored in a database for reporting to authorities. Dry and wet scrubbing require different monitoring devices.