air pollution treatment Applications

Wastewater Treatment

Many industrial and pharmaceutical processes generate wastewater with volatile contaminants that increase the COD and BOD to a point where discharging to municipal wastewater is very costly or not an option. These contaminants can be removed from the water by distillation, substantially lowering the disposal cost, and, in many cases, the removed components can be further purified and reused in the process. MEGTEC offers the following solutions to remove the volatile contaminants and make wastewater suitable for discharge to most municipal wastewater treatment plants: Stripping columns using direct steam or a reboiler Distillation columns using indirect steam heat sources Our technologies have been applied to a range of processes including wastewater treatment from industries such as Pharmaceutical, Semiconductor, Chemical and Petrochemical.

Metallurgical

MEGTEC TurboSonic provides custom-designed atomizing technologies and air pollution control solutions for the non-ferrous metallurgical industry including Aluminum, Copper, Nickel, Zinc and precious metals producers. SoniCool™ Evaporative Gas Cooling & Conditioning controls high-temperature furnace and converter off-gases, lowering them to temperatures below other spray technologies—without wetting problems. By lowering the temperature and conditioning the gas stream, SoniCool™ protects downstream equipment from damage and improves the efficiency of downstream APC equipment, such as baghouses and electrostatic precipitators.

Cement

MEGTEC's extensive scrubber experience applies to the cement manufacturing process for the effective control of SO2 and HCl by the injection of lime slurry. Our customers can achieve up to 90% reduction of SO2 and 98% reduction of HCl using microfine or standard lime. The TurboSorb Spray Dryer Absorber (SDA) can often retrofit into an existing gas conditioning tower, or downcomer duct, to avoid the high cost of new capital equipment.

Ethanol and Biofuels

Controlling the VOCs and CO emissions produced in the feed dryers (wet and dry milling), coupled with the particulate matter being introduced and the need for the reduction of NOx are just the start of having a successful abatement solution. The challenges of smooth pressure control that reduces dryer fluctuations and plug resistant media that lessen the frequency of bake-outs are also part of a successful abatement system and we have the solutions. Our engineered oxidation systems provide reliable performance with minimal maintenance requirements. Externally accessible valve bearings and other critical components are kept out of the corrosive moisture-laden streams extending the life of the equipment and facilitate maintenance intervals. Our simple oxidizer designs control your emissions with minimal facility intervention and allow us to provide you with reliable and dependable equipment.

Wood Products

MEGTEC is a leader in providing regenerative thermal oxidizers (RTO) for VOC control for products such as OSB, MDF, SYP, plywood, particleboard, wood pelletizing and other engineered wood products, with particular expertise in solving the problems of media plugging and alkali attack associated with wood dryer exhaust. With thousands of systems installed worldwide in many process industries, MEGTEC has the knowledge to provide you with the best solution for your specific needs. MEGTEC’s designs are modular and cleanable, using alkali-resistant ceramics and corrosion-resistant materials of construction.

Iron and Steel

SoniCool™ Evaporative Gas Cooling & Conditioning uses a finely atomized water spray to cool EAF, BOF off-gases from over 2,400°F (1,315°C) to as low as 240°F (115°C), protecting ductwork and downstream air pollution control equipment from high temperature and sparks, while providing rapid cooling for dioxin and furan control. By optimizing humidity levels, SoniCool™ helps electrostatic precipitators. The water spray completely evaporates while cooling gases. There is no free water and no troublesome deposits in ducts, towers or hoppers. Turbotak rugged nozzles are made to the exact requirement, and ideally suited to the harsh conditions in the steel manufacturing process while still producing ultra-fine sprays, with precise control of dropsize and spray coverage.

Petrochemical

Durable regenerative thermal oxidizer (RTO) technology is at the core of our systems. MEGTEC designs and engineers system solutions to meet your special requirements, ranging from energy-efficient treatment of dilute volatile organic compound (VOC) flows, such as tank ventilation, to demanding applications utilizing VOC energy for secondary heat recovery; for example, in the form of process streams. This can include pre- and tail gas treatment systems, and could handle hazardous components such as sulphurous or chlorinated hydrocarbons. For special requirements, we can offer FTO (flameless thermal oxidation) and we can design systems operating safely on oxygen contents below 5%.

Odor Control

We treat air streams to remove odors allowing industrial processes to be operated in compliance with local regulations and without causing a nuisance to neighbors due to odors and smells. Our technologies have been applied to a range of processes including: Waste treatment (municipal and industrial) Manufacture of flavors Food processing Waste water treatment (Municipal and industrial) Chemical manufacture Rendering

Electronics

In the fast-changing electronics industry with its need for new materials and products, demand for 100% uptime, smooth production operation, many in clean-room environments, MEGTEC meets and exceeds continuous demand for raising the bar of technology excellence. MEGTEC works either directly with the end user or through engineering firms or contractor companies, offering tested package systems as required and our end user list includes most of the well-known manufacturing companies around the globe including producers of ceramic condenser/capacitor, thin film FCCL, solar back film, plasma and LCD screen makers in Asia. We have the breadth of technologies in our portfolio and with our strong engineering design capabilities, collaborate from each of our global facilities and can review your application and recommend the best solution.

Coating and Laminating

MEGTEC’s experience and application know-how are at your command for tough drying and web handling applications such as slow-drying coatings and materials or thin film coating and laminating. Dryers can be equipped with a wide variety of nozzle configurations ranging from simple slot nozzles to sophisticated Coanda-style air bars and patented air foil systems. A full range of heat sources are available including steam, direct and indirect gas-fired, thermal oil, electric, hot water and IR. In addition, the air handling systems can be integrated into the dryer enclosure or stand-alone for remote installation. When the process requires pollution control systems for solvent-based applications, MEGTEC also offers regenerative thermal oxidizers, solvent recovery, distillation and purification systems. MEGTEC also offers waste heat recovery packages to “close the energy loop” between pollution controls and the process, in order to reduce production costs and increase customer profits

Waste to Energy

We can treat the air streams from waste management plants, MBT (Mechanical Biological Treatment) reception and composting areas, Waste Water Treatment Plants (WWTP), Refuse Derived Fuel (RDF) Plants, gasification of waste, syngas, torrefaction, gas engines and biogas upgrading. In waste management plants and WWTP, we remove the odors that may be causing a nuisance to neighbors, with bioreactors using Biomass to degrade odorous components and where odors are particularly intractable or VOC emissions higher, thermal oxidizers to meet prescribed emission limits and odor levels. In RDF Plants, Syngas, Gasification, Gas Engine and Biogas Upgrading applications, we employ thermal oxidizers, particulate removal and DeNOX systems, for the control of VOC, NOx, CO and particulates to prescribed emission limits.

Power Generation

MEGTEC is actively involved in providing Power Generation solutions for many applications ranging from utilizing process heat recovery systems to utilization with boilers, to recovering and utilizing Ventilation Air Methane (VAM) from coal mines. MEGTEC has developed VAM processing technologies for either abatement only and in combination with energy recovery and utilization. MEGTEC’s proven technologies are destroying methane while generating high quality carbon credits, electricity for coal mines and heating for local communities and facilities.

Gas detection analyzers for pollution control

Government and environmental groups are forcing industries with medium to high VOC exhausts to reduce emissions by as much as 98%. Incineration using pollution control devices such as oxidizers and flare stacks is one way to bring the exhaust emissions in line with the regulations. Capturing and reusing solvent in a solvent recovery system is another way.

Purifications solutions for air and purification industry

Carus Corporation is the manufacturer of a series of manganese based catalysts, called CARULITE® catalysts. These Hopcalite type catalysts are used for breathable air purification, emission air purification, and process air purification.

VOC Abatement Improves Air Quality

Air Quality Monitoring Equipment for Industry

Signal manufacture a wide range of Air Quality Monitoring equipment, from reference method integrated systems down to battery powered indicative units.

Disinfection of air-conditioning systems

The good condition of an air-conditioning system in terms of hygiene is a key element in maintaining at a high level the quality of indoor air. In this way an important factor in human health is ensured. The basic steps related to the hygiene of an air-conditioning installation are: Mechanical cleaning of vents. Chemical cleaning and disinfection.

Vapour-Liquid filtration for the Air Pollution Treatment Industry

Chemical and Pharmaceutical Solutions

The application of VOC emission control equipment for the chemical and pharmaceutical industries requires a thorough knowledge and understanding of the customer's process and requirements, and having the ability to offer custom solutions. MEGTEC has years of experience in finding solutions to support the chemical industries worldwide. with our range of solutions including scrubbers and wet electrostatic precipitators, carbon adsorption systems for solvent recovery, distillation and purification equipment, and thermal oxidation systems.