Emergency VOC reduction for the pharmaceutical industry

Introduction A common practice in chemical or pharmaceutical plants is to collect VOC (volatile organic compounds) laden air or gas streams and treat them in one central place. for example, in a thermal combustion unit. Thermal combustion units need maintenance or, in the event of sudden breakdown, replacement by an alternative technology. Mobile filters with…

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Formaldehyde removal from air with activated carbon

Formaldehyde, IUPAC name methanal, is the simplest aldehyde, with the formula, CH₂O. Its structure is shown in Figure 1. It occurs naturally but is toxic and highly volatile. Figure 1: Structure of formaldehyde Removal of formaldehyde is complex as it can adopt many forms. In its simplest form, formaldehyde is a gas. It is skin-irritating…

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Selection of the auxiliary equipment for air and gas treatment systems

The design or selection of the auxiliary equipment of an activated carbon filter depends on a combination of different selection criteria and must be in accordance with the local safety rules. Fan When selecting an industrial fan, we must take into consideration different criteria: Flow rate Can the fan deliver the required flow rate needed…

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Design and selection of activated carbon air and gas treatment systems

The design of an activated filter will determine the energy consumption and the activated carbon usage of an adsorption treatment system. Jacobi Services offers a complete range of compact mobile filters of the type EcoFlow™ designed for optimal flow distribution, low pressure loss and for optimum activated carbon consumption. The design or selection of a…

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Odour control

Definitions Odour is the property of a substance that activates the sense of smell and can cause nuisance and health damage. Companies can emit odour (emissions) to the environment that can bother people and lead to complaints and bad publicity. Fugitive emissions contribute to air pollution and climate change as well as an economic cost…

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Air treatment with activated carbon in soil remediation projects

In certain soil remediation projects, there can be a need for purification of exhaust from air strippers, tent ventilation and even the interstitial air in the ground present naturally or under purge from treatment systems. Air Strippers The pump and treat method is a technology often used in soil remediation projects where contaminated groundwater is extracted by…

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Ammonia (NH₃) removal from air

Introduction Ammonia (NH₃) is a colourless, low molecular weight gas with the chemical formula NH₃ (See figure 1). It has a pungent smell, often associated with strong household cleaners. Ammonia (NH₃) is lighter than air but can be easily condensed to a liquid due to strong hydrogen bonding between the ammonia molecules (hydrogen bonding is…

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Arsine (AsH₃) removal from air

Introduction Arsine (AsH₃) is an extremely toxic gas that is generated upon exposure of arsenic-containing ores to acids. It is also a by-product of refining of non-ferrous metals. Arsine is used extensively in the manufacture of microchips, solid-state lasers and for the synthesis of organoarsenic compounds. Arsine (AsH₃) is a colourless, flammable, non-irritating toxic gas…

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Phosphine (PH₃) removal from air

Introduction Phosphine is the compound with the chemical formula PH₃. Phosphine (PH₃) is used as an intermediate in organophosphorus chemistry and as a dopant in the semiconductor industry. Phosphine (PH₃) is alsowidely used as a fumigant (for example, in the tobacco industry) that does not leave residues on the stored product, and for pest control.…

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