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Resins and Carbons

Mixed Bed Resin

Purolite MB400 is a high quality resin mixture for direct purification of water. It is suitable for use in regenerable or non-regenerable cartridges and in large ion exchange units. Passage of water at recommended flow rates through the resin as supplied can achieve almost complete reduction of total dissolved solids. The residuals produce average conductivity values of about 0.1 μs cm-1 for a major portion of the service run which may be extended depending upon the final water quality being acceptable. Equivalent volumes of ultra pure water may be obtained after regeneration but only if sufficient regenerant quantities are employed to achieve the percentage conversion levels equivalent to those of the “as supplied” resin. Generally acceptable capacity and quality is obtained economically at lower regeneration.

HPC 205

The HPC 205 is a small mobile interchangeable activated carbon adsorption filter, specially developed for the treatment and purification of air and gases. This mobile filter is an absorber and transport vessel in one. This mobile container can be used on site as a gas phase pilot unit for the removal of VOC, solvents and odours. The filter can be used for small industrial applications like sewer gas vents, air stripping, exhaust vents, chemical storage tanks vents. The HPC 205 is normally delivered pre-filled on-site and can easily be moved by a hand pallet truck or forklift. The filter should be placed on a flat and hard surface. The filter is normally used up-flow as single filter or in parallel with other filters. Screw connections allow the filters to be configured on-site to the process arrangement required by the operators. The filter is operated until saturation of the activated carbon. Once the activated carbon is saturated, normally the entire filter is replaced by another unit filled with fresh carbon.

FEATURES

  • Applicable anywhere
  • Rapid and easy site installation
  • Supplied fully equipped and ready to use
  • Little or no maintenance required
  • Simple for carbon refilling (metal version)
  • A range of mobile filters are available for larger flows

TECHNICAL DESCRIPTION

  • Material coated steel
  • Diameter: 575 mm 560 mm
  • Height: ± 900mm ± 960 mm
  • Content: ± 220 litres
  • Weight empty: ±15kg
  • Filling: ±75kg _ 175 litres dry A.C. (vessel shipping wt. ±90kg) caution! Weight at saturation or wet can go up to 200kg.
  • Connections BSP female
  • Inlet DN50 – at the bottom
  • Outlet DN50 – at the top operating conditions
  • Max. flow rate 200 m³/h.

Activated Carbon

What is Activated Carbon?

Activated carbon is a porous form of carbon which can be manufactured from a variety of carbonaceous raw materials. The principal products are made from coconut shell, coal, peat or wood. The activation process involves treating the raw material with steam or chemicals, thereby developing a pore structure.

Activated carbon is characterized by a vast system of pores of molecular size within carbon particles resulting in the formation of a material with extensive internal surface area.

How Does It Work?

The atoms of carbon comprising the large internal surface area of activated carbon present attractive forces outward from the surface. These forces, known as Van der Waals forces, attract the molecules of the surrounding gas or liquid.

The combination of these attractive forces and those of molecules in the surrounding medium result in absorption of molecules at the surface of the activated carbon. Some molecules have structures which make them more easily adsorbed than others and it is due to this that separation of molecules is achieved.

Activated Carbon Selection

Selection of the most appropriate activated carbon type is based either on known characteristics of the chemicals to be removed in an absorption process or by a series of controlled laboratory tests. Powder carbons are mainly used in batch processes and removed by filtration after an appropriate contact time whereas granular carbons are used in fixed or moving bed filters. In each case of granular carbons, the smallest particle size is normally selected consistent with retention in the filter and acceptable flow resistance since this will provide the best adsorption kinetics. Activated carbon is sometimes chemically impregnated to enhance the performance by chemisorption when the adsorption affinity for particular contaminants is too weak to be effective.

Downloads

FileDescriptionFile sizeDownloads
pdf HPC-205 Carbon Drums206 KB20
pdf Resins and Carbons378 KB15