Meeting the Environmental Challenge
Technical expertise is your domain. Our domain is understanding the technical merits of a given product, how it is differentiated compared to the competition, and how to exploit opportunities in the given market sector.
Please find below some more detailed technical information on some specific areas of expertise in the environmental sector, where Macken Barnes has made an impact.
Industrial Gas filtration.
Dust Filtration (particulates)
This technology can be used in combination with multi-cell cyclones and acid gas treatment (see below), to provide a turnkey solution for Biomass Gas Treatment plants.
High temperature ceramic catalytic filtration to treat NOx and Dioxins.
Ceramic catalytic filtration combine the capability of conventional bag filters, with higher temperature capability (180-400C), in order to treat dust (<2mg/Nm3), NOx and dioxins (>90% conversion) and acid gases in a single process step.
Urea injection is required to treat the NOx (see below).
Conventional bag filter and SCR configurations require cooling prior to the bag filter (to protect the filtration media), and re-heating prior to the SCR.
This method is therefore comparatively energy inefficient, with lower dust and SOx abatement capability.
Injection systems: Acid gas treatment using sorbent, and urea (NH3) for NOx abatement
As described above, injection systems are required to treat acid gases (SOx, HCL…), and NOx.
Natural Frequency Vibrating machinery: waste stream recycling and sorting.
Vibratory machinery is used to convey and separate different materials.
Such Natural Frequency Vibrating equipment are used to supply solutions of added value in areas such as Waste to Energy Bottom Ash Recycling, Municipal Waste Recycling, Recycled Glass cleaning and separation, Construction and Demolition, Wood/Biomass preparation, and Scrap Metal Recycling.
The advantages of Two Mass, Sub-tuned, Natural Frequency Equipment, compared to direct force driven alternatives, include:
Less rotating weight, no large bearings to maintain and replace, smaller horsepower requirement that brute force designs, resist slowing down or stopping under surge loading, quickly come to rest when stopped, large contact/screening contact area and hence higher separation efficiency.
Industrial Liquid Filtration
The selection of Filtration media is a critical in the separation of solid and liquids. Resistance to blinding, low filtrate turbidity and easy cake discharge are all important factors in optimising process performance. Filtration media will typically be used in such equipment as filter presses, and pressure filters.
Areas of application include Chemical/Pharmaceutical, Sewage, Mining, Minerals and Foodstuffs.
Filtration media types are selected on the basis of the material choice (polypropylene or nylon for example), the weave pattern (satin or staple…), and the weight of fabric (g/m2), which usually governs the mechanical resistance of the woven fabric.