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Pharmaceuical Special Waste

NaHCO3
Active Carbon / Lignite
Ca(OH)2*MgO

Technical Sodium Bicarbonate and Activated Carbon/Lignite Coke for Special Hospital Waste to Energy Incineration Plants

The treatment of hospital special waste (HSW) plays a crucial role in healthcare management and public health. HSW is subject to stringent disposal regulations, as it may contain infectious, toxic, and radioactive materials. Incineration is the preferred option for the disposal of HSW, as it neutralizes biological risks and allows for energy recovery. However, this process can lead to the emission of hazardous substances, including sulfur oxides (SOx), hydrochloric acid (HCl), hydrofluoric acid (HF), and heavy metals, which require appropriate abatement treatments before release into the atmosphere.

To ensure that emissions are kept under control, the combined use of technical sodium bicarbonate and activated carbon or lignite coke is used as a flue gas purification strategy for RSO waste-to-energy plants, with the addition of magnesium lime as an optional reagent for certain types of plants.

Solution with Technical Grade Sodium Bicarbonate plus Active Carbon or Lignite Coke

The two-stage treatment system uses technical sodium bicarbonate and then activated carbon or lignite coke to address a broad spectrum of gaseous and particulate pollutants. Sodium bicarbonate is introduced into the flue gas flow to neutralize acids and convert them into non-hazardous salts, such as sodium sulfate or sodium chloride. Activated carbon or lignite coke, added downstream, adsorbs heavy metal particles and other toxic substances present in the flue gas.

Magnesium Lime

In some systems, magnesium lime can be added to the combustion chamber because it is effective in neutralizing the diluted acids present in certain types of special hospital waste, assisting the bicarbonate in neutralization. Similar to activated carbon, it has the ability to interact and bind with certain pollutants, including heavy metals, improving filtration. This confirms it as a valuable additional reagent, alongside bicarbonate and activated carbon or lignite coke.

Design and Realization

MetalTek specializes in the design and manufacture of high-quality mills and feeders with top-quality components. Our equipment is available in various configurations, and upon request, we can design customized loading and injection solutions for every need.

Metaltek Mills Specialized for Technical Grade Sodium Bicarbonate Active Carbon or Lignite Coke Metaltek Dosers Specialized for Magnesium Lime

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Metaltek Services: Assistance, Maintenance and Monitoring

Assistance, Maintenance and Monitoring Services on existing systems

Metaltek, with thirty years of experience in the sector, supplies cutting-edge systems for the purification of industrial fumes, designed to guarantee reliability, continuous efficiency and compliance with environmental regulations.

Thanks to our team of highly specialized consultants and designers, we create customized solutions that optimize the use of sodium bicarbonate, activated carbon, lignite coke and magnesium lime , reducing operating costs and waste. We offer timely assistance, professional analyses, teams equipped to work at heights and in confined spaces, and a constantly stocked spare parts warehouse. The quality and robustness of our systems, combined with global technical support and our Tek Lab analysis service make them ideal for flue gas purification where precision, reliability, and service continuity are essential.

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Tek Lab by Metaltek is a leader in the analysis of industrial fumes and residues. A cutting-edge technology to detect and address issues with overdosing or problems related to excess acids, dioxins, or other harmful compounds. It offers both on-premises analysis and on-site monitoring and analysis with its mobile laboratory.

Quality Products and exclusive Metaltek Services: a benchmark, the state of the art of Hospital Special Waste to Energy Incineration Plant

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Flue Gas Cleaning with Technical Grade Sodium Bicarbonate, Active Carbon or Lignite Coke and Magnesium Lime

FAQ

What pollutants are typically present in the flue gases resulting from the incineration of HSW?

In addition to SOx, HCl, and HF, the incineration of HSW can release other dangerous substances, such as dioxins and furans, fine and ultrafine particulate matter, and various heavy metals (such as mercury, lead, and cadmium), all of which require careful mitigation measures.

Why use technical grade sodium bicarbonate and activated carbon/lignite coke in the incineration of hospital special waste (HSW)?

The incineration of HSW can release acidic substances such as SOx, HCl, and HF, as well as heavy metals which are hazardous to the environment and human health. These components must be neutralized before the fumes can be released into the atmosphere. Technical grade sodium bicarbonate and activated carbon/lignite coke are effective in reducing these pollutants.

How does sodium bicarbonate work in the flue gas treatment from incineration?

Sodium bicarbonate reacts with the acids in the flue gases to neutralize them, converting hazardous substances into non-toxic salts. This reaction can occur at the high temperatures present during the incineration process, making sodium bicarbonate an ideal reagent for these systems.

What is the role of activated carbon and lignite coke in treating the flue gases of HSW?

Activated carbon and lignite coke adsorb pollutants such as heavy metals that cannot be chemically neutralized. They can also absorb volatile organic compounds and other toxic substances, making them an essential component in the overall strategy for flue gas purification.

How do activated carbon and lignite coke differ?

While both are used in flue gas purification, they differ significantly in efficiency and application: activated carbon, with its high adsorptive capacity due to a unique porous structure, is excellent for capturing organic gases and vapors. Lignite coke shows specific effectiveness at low temperatures, offering a lower-cost alternative for applications operating below 200°C.

What benefits does the use of Magnesia Lime (Magnesium Oxide) offer in flue gas treatment?

Magnesium oxide, also known as Magnesia lime, when used in conjunction with sodium bicarbonate, emerges as a powerful additive in purifying the gases emitted from the incineration of hospital special waste. This synergy proves particularly effective in neutralizing acidic pollutants present in the flue gases. The combined use of these substances not only ensures a more complete purification compared to using a single component, enhancing the filtration process's effectiveness, but also facilitates compliance with existing environmental emission standards. It adds further benefits in retaining additional contaminants such as heavy metals, thus enhancing the quality of filtration.

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