SulfAxTM Systems

Application

MV’s SulfAxTM Systems are for use in treating biogas streams from landfills to anaerobic digestion elements at farms, wastewater treatment facilities and food & beverage processing operations. When evaluating the best system for your project – an MV Engineer will run the Capex vs. Opex cost difference of both a SulfAx system vs. H2SPlus system to identify the most cost-efficient solution for biogas adsorption to deliver against your project requirements.

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Design & Technology

The SulfAx System is designed to optimize high capacity granular media. MV Technologies uses high-performance AxTrap granular media for its superior attributes and ease of removal. The granular media is installed in fiber-reinforced plastic (FRP), stainless steel or carbon vessels through a manway. Gas flows through the vessel (top down) and the iron oxide reacts with and eliminates the hydrogen sulfide and light mercaptans from the gas. The spent media is removed through a bottom side manway on the vessel, typically with a vacuum truck. Vessels are sized for a certain gas velocity and desired bed life, depending on inlet hydrogen sulfide concentration and outlet hydrogen sulfide requirements, and rate of adsorption. By utilizing up to a~20 ft. bed depth, media life can be adjusted, depending on available pressure drop. Additional vessel designs for the medium are available and range from drums to roll-off style vacuum boxes.

  • Different formulations of the media are available based on application and the presence of varied constituents in the gas such as non-methane VOC’s and siloxanes.
  • Effectively removes hydrogen sulfide with or without oxygen in the gas – and based on the amount of O2 in the gas – removal efficiency of up to 20 lbs. of hydrogen sulfide per cubic foot of media.

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Performance & Benefits

The SulfAx System a superior alternative to other leading granular media-based systems for hydrogen sulfide in wastewater treatment, waste management, restaurants, and agriculture primarily due to its innovative design and enhanced efficiency. One of the system’s key advantages lies in its unique sulfide-oxidizing process, which effectively minimizes the buildup of harmful byproducts often associated with traditional systems. These advantages include:

  • Lower pressure drop, resulting in a lower chance of corrosion, odor, and more serious complications.
  • The spent media can be vacuum removed even if oxygen is present, and without the need for water. This makes changeouts safer, quicker and easier.
  • The unique iron oxide matrix of the AxTrapTM media avoids the excessive heating and combustion commonly found with other spent iron oxide media (both on combustible and non-combustible substrates).
  • Injection of small amounts of air may improve efficiency by as much as 50% or greater.
  • Not affected by free liquids whose concentration may increase the risks of hazard or pollution.
  • Does not contain crystalline silica, commonly known as “quartz” that is known to cause cancer (a carcinogen) which is OSHA hazardous when present above a level of 0.2% by weight.
  • Includes environmentally friendly materials such as carbon, iron oxide and stainless steel tailored to your needs, reducing exposure to potential resulting toxicity.
  • The peace of mind that comes with full adherance to regulatory compliance.

*MV Technologies is a distributor of AxTrap™ media products. AxTrap™ media is the exclusive product of Axens with USA and foreign patents granted and applied for. AxTrap™ is a trademark of Axens, all rights reserved.

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SulfAX Systems FAQ

The SulfAx™ System is designed to remove H2S, or hydrogen sulfide, as efficiently as possible from landfills, biogas streams caused by an organic compound, wastewater treatment plants, food and beverage processing pans, and various industrial environments. SulfAx™ System’s role is to ensure that all biogas encountered is purified via adsorption to meet industrial, environmental, local, state, and federal standards and regulations while reducing maintenance costs and protecting the investment you’ve made into your SulfAx™ System.

SulfAx™ Systems have emerged as a cutting-edge solution across diverse industries, including food and beverage processing, agriculture, wastewater treatment, and waste management sites. These sophisticated adsorption systems are designed to tackle the challenges posed by biogas emissions, particularly hydrogen sulfide, which is notorious for its unpleasant odor and potential health hazards. By employing a technical approach that combines advanced material science with engineering principles, SulfAx™ Systems effectively mitigate harmful gases, thereby enhancing air quality and promoting a healthier environment to ensure a clean and healthy surrounding environment free of odor, pollution, and corrosion while maintaining environmental compliance.

SulfAx™ System was designed to be as highly effective as possible around high-capacity granular media, offering easier media exchange, lower pressure drop, and improved efficiency. The SulfAx™ System works flawlessly even when in the presence of free liquids and oxygen generated via anaerobic digestion. The unique iron oxide formulation reduces the risk of your system heating, which is common with traditional media removal solutions.

The SulfAx™ System is effective and efficient whether oxygen is present in the gas stream from anaerobic digestion you’re treating or not. Adding small amounts of oxygen to the SulfAx™ System can actually increase the efficiency of hydrogen sulfide removal by up to 50%. This allows for even further improvements to your system’s performance without negatively affecting existing media.

SulfAx™ System uses vessels made from several materials, including carbon, stainless steel, FRP, or fiber-reinforced plastic, depending on your specific requirements and application. Your environment’s gas composition and needs will help determine which materials are ideal for your SulfAx™ System solution.

The SulfAx™ System uses AxTrap™ media to aid in the process of removing hydrogen sulfide from the targeted biogas stream via adsorption. Using AxTrap™ is highly effective. With the use of high-quality activated carbon, it’s possible to remove up to 20 pounds of hydrogen sulfide per cubic foot of media (this will also vary based on the oxygen content found in the gas stream itself).

The SulfAx™ System has been engineered with versatility in mind, addressing a broad spectrum of hydrogen sulfide concentration levels. This innovative system features a customizable media bed depth and adjustable vessel configurations, allowing operators to seamlessly tailor the setup to meet specific inlet hydrogen sulfide concentrations and desired outlet levels. Such adaptability is crucial in environments where hydrogen sulfide levels may vary significantly or experience unexpected fluctuations. This ensures that the SulfAx™ System can maintain effective performance and compliance, regardless of changing conditions.

Yes, the AxTrap™ media is designed to be safe to handle and dispose of, regardless of the toxicity of your surrounding environment or the industry you’re working in. AxTrap™ does not contain known carcinogens such as crystalline silica, which is found in many alternative media sources available today. By using materials like activated carbon and stainless steel in our processes, we hope to reduce the environmental impact and chance of pollution in waste management and wastewater treatment. We not only actively adhere to regulatory compliance – we exceed it.

AxTrap™ media is developed with a unique chemical structure, including iron oxide, that prevents combustion and excessive heating (that may occur with alternative iron oxide-based products). The use of AxTrap™ media is a way to maintain peace of mind, knowing that your environment is safe whether combustible or non-combustible substrates are present. MV Technologies