The nature of the industrial waste water and the concentration of substances can give rise to levels of pollution that pose a serious risk for health and safety, particularly in confined spaces. In addition, they can give rise to significant odour nuisance for populations living nearby or adjacent to the facility.

Biological systems often are the only appropriate technology because of their ability to treat a large spectrum of compounds and due to their low operating cost. To ensure a correct process selection it is necessary to fully characterize the airstream (including every airstream that has to be threatened), and it is necessary to determine the best technology (or the best technologies group) to engage each specific case.

Removal of acidic gases produced by wastewaters in tannery industry using chemical scrubbers and biotrickling filters

Waste water in the tanning industry service are characterized by very high concentrations of hydrogen sulphide and reduced sulphur compounds.

Air Clean has produced numerous successful applications in this area using the latest generation of MónaShell® biotrickling technology, in addition chemical scrubber can be used in conjunction with a MónaFil® granular peat biological filter.

Reference technology

Removal of BTX produced by wastewater treatment plants in the petrochemical industry by means of scrubbers and biotrickling filters

Petro-chemical plants are often characterized by containing emissions BTX (benzene, ethylene and xylene) some of these compounds (benzene) are hazardous to health (carcinogenic compounds).

Air Clean has developed a biological system that can break down the BTX. This biological system has high removal efficiency with low operating costs compared to that of conventional systems (activated carbon).

Recently, the use of biological systems has been listed as best available technology for odour treatment of industrial wastewater treatment plants. I.e. as an example, recently the biological reduction systems were listed as best available technologies for the deodorization of process tanks in refineries.

Reference technology

Abatement of odour and VOC emissions produced by the food and dairy industries using biotrickling filters

In the food processing industry sewage treatment plants they are often characterized by extremely high concentrations of hydrogen sulphide and ammonia, (i.e. the dairy industry).

Air Clean has produced numerous successful applications using the biotrickling MónaShell® system for odour treatment.

Reference technology

Abatement of odour and VOC emissions generated by the industrial wastewater treatment plants using chemical scrubbers, activated carbon systems and biological techniques

Industrial water treatment plants for third parties are often installed near population centers and are therefore a potential source of mal odor. The difficulties associated with this type of applications depends on the characterization of wastewaters that are received, and therefore also of specific chemicals giving rise to the mal odour. These emissions can be highly variable in chemical makeup and concentration.

Air Clean has extensive experience in dealing with the problem of the treatment of atmospheric emissions from these types of systems, using both biological systems and chemical systems with including dry scrubbers, alone or in combination with each other.

Reference technology

Biogas purification (removal of H2S) by biological cleaning