In calcination processes, solid intermediates and products are regularly handled in the fine powder form (ex: kaolin or metakaulin). There is a need to separate these very fine powders from the exhaust streams of calciners, fluid bed dryers or incinerators, often at critical temperature conditions. For PM emission control at very high temperature ( >600 ºC), traditional bag filters following temperature exchangers or scrubbers are used as end stage dedusters.
For PM emission control in very high temperature exhaust streams ( >600ºC ), such as gasification, pyrolysis and incineration, traditional bag filters following temperature exchangers, ceramic filters, or scrubbers are used as end stage dedusters. For most arrangements, a primary high temperature separator, namely a cyclone, is important to reduce as much ash and char as possible. A good efficiency is important to reduce concentration of solids to the final stage dedusters, avoiding plugging of scrubbers...
Polycyclic Aromatic Hydrocarbons (PAHs) are a group of over 100 different chemicals that are known to be formed typically during incomplete combustion of organic matter at high temperature. Their major sources in the atmosphere include industrial processes, vehicle exhausts, waste incinerations, and domestic heating emissions. Due to their carcinogenic/mutagenic effects, 16 PAHs are currently listed as priority air pollutants.
Process control and emission monitoring in a waste to energy plant is a challenge. A large number of gaseous components need to be measured with high accuracy. Almost 100% uptime is required and the monitoring system needs to be easy to maintain and fast to calibrate.
With 30 years` experience, and more 300 operational, industrial air pollution plants, ERG has an extensive reference list to draw on. So even if your application does not fit neatly into one of the categories described in our portfolio of experience, we are likely to have relevant experience to help us solve your air pollution problem.
Lime slurry can be easily applied to rough terrain with a fine spray, minimizing waste and dust migration while providing a much safer, cost effective alternative. Flue gas treatment for industrial facilities and hazardous waste incinerators.
Monitoring of emissions from incinerators is a demanding application for Continuous Emission Monitoring Systems. The emissions produced are highly corrosive, some of the gases are soluble and, because the waste being burnt is constantly changing, the resulting stack gas temperature varies widely.
Local authorities incinerate domestic waste and other kinds of waste that typically include plastics, batteries and a diversity of unknown compounds. These may all produce acidic and other toxic emissions. Therefore, efficient flue-gas cleaning systems are needed to prevent their release into the environment.
A large pharmaceutical plant runs a Thermal Oxidiser on plant to incinerate their solvent-containing gas streams before emission. When the oxidiser is offline, then the plant must monitor the release of solvent to the atmosphere. A ProtIR 204C fixed monitoring system was installed that continually measures 24 plant solvents, including Acetone, Cyclohexane, DCM, DMF, IPA, MIBK, Toluene and THF. Given the high levels that are possible, the system has an active dilution system, reducing the concentration of the...
Waste incineration is a complex area. The mix of waste, moisture content, temperature of the waste, surrounding air and a variety of other factors interact and affect which residues are formed. Combustion entails often a gas consisting of heavy metals, sulfur oxides, chlorides, dioxins, etc. It is extremely important with a proper handling of the gas and the task often requires a mixture of wet and semi-dry treatment. EnviBAT offers equipment that brings particle levels down to extremely low levels, which guarantee...
Conditioning of Ash and DustNo matter where ash and dust accumulate, AVA continuous or batch mixers can condition them to a transportable final product for disposal or recycling. The applications range from power plant ash derived from lignite, hard coal, biomass, or waste incineration power plants to filter dusts from steelworks and coking plants through to special applications such as hot or reactive ashes from various processes, such as shale oil production.