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Category Archives: Air Filtration

NGK Ceramics

A2V recently completed the air extraction and treatment system to NGK’s newest manufacturing line at their facility in Airport Industria, Cape Town. As per previous projects, the system extracts air contaminated with xylene and other benzine type organic contaminants and treats it through a particulate filter to remove ash, followed by activated carbon filter to remove the organic vapors, before discharging the treated air to atmosphere.

The project also included AC supply to maintain the air temperature in the process at optimal levels as well as the fresh air supply to the operator workstations on the line.

This is the third system that A2V have installed as a turnkey project for NGK and continue to service.

The extraction system from the new BMW productions line, NGK Ceramics

The extraction system from the new BMW productions line, NGK Ceramics

The activated carbon filter and stack at NGK Ceramics

The activated carbon filter and stack at NGK Ceramics

Protea Chemicals – New Chlorine Store

A2V were appointed to carry out the mechanical ventilation design for the new chlorine gas storage facility at Protea Chemicals. This included modifying the existing chlorine scrubber system so that it could serve the new storage facility as well as the existing facility.

The ventilation system was designed to ensure early detection of  leaks with chlorine sensors situated at low points in the collection zone. The sensors activate the emergency extraction and scrubbing system and close the exits in the event of a tank rupture. The floor of the storage area is designed to be effectively ‘swept’ by even extraction via a low level extraction manifold located along one side of the facility.

A2V also carried out the Fire Prevention Plan for the new facility which was commissioned in September 2013.

Emergency Chlorine Scrubber



NGK Ceramics – Gas Extraction and Carbon Adsorbtion System

A2V were appointed to design an air extraction and filtration system  for one of NGK Ceramic’s new manufacturing process. The new manufacturing process produces a number of organic solvents  as vapours, including xylene, ethyl benzene, n-buthanol, ethanol and methanol. Of these solvents, benzene is restricted in terms of the National Air Quality Act (2004). The limit is currently 10 ug/m3 and will be amended to 5 ug/m3 in 2015.


South Cape Ostrich Tanning (SCOT) – Extraction and scrubbing of Chlorine

A2V were appointed by SCOT for a solution to the problem of noxious gasses in their factory. The gasses are produced in a number of tanks as part of the tanning processes and include, ammonia, hydrogen sulphide, chlorine and sulphur dioxide. (more…)

Riga Odour Removal System

A2V were appointed by VT Filtration (UK) to design and manufacture an air filtration system to remove a variety of odorous compounds from a pilot waste to ethanol plant to be installed in Riga in Lithuania. (more…)

Volatile Organic Vapour Condenser

The Volatile Organic Vapour Condenser (VOVC) was developed for removing condensable organic compounds from factory emissions. (more…)

Water Regenerable Carbon

This patented non-impregnated catalytic carbon was designed specifically for odour control in wastewater applications where the main pollutants are hydrogen sulphide and mercaptans. It is unique in that it has a high capacity for sulphide removal without the need for chemical impregnants. (more…)