References

Industry: Pharmaceutical industry

Problem:
The production of surgical material requires large quantities of ehyl acetate, the disposal of which has been posing problems because it is complex and expensive. Thermal combustion has never been an option due to cost and environmental considerations. Moreover, the company wants to reclaim and reuse this expensive raw material. Approx. 6,000 m3 of waste air are produced per hour. However, the amount of waste air varies considerably depending on the production process. The cost of the solvent contained in the waste air amounts to approx. 40,000 € / annum. Moreover, the customer must comply with the Cges-legal limit of 50mg/m3n set by the authorities.

Solution:
AWS built a filter plant inside a reefer container which was installed on the roof of the factory building. On site, the filter plant merely required connection to the waste air system of the factory hall. The air cleaned by the AWS filter can be brought out on ground level and complies with the strict environmental laws. The reclaimed solvent can be reused and thermal combustion is no longer required.

Industry: Aircraft industry

Problem:
Aircraft parts are varnished using highly solvent-based varnishes (containing more than 50% solvents). Waste air extraction and thermal combustion have been employed to date. Due to the high energy costs for thermal combustion and the amount of CO2 emissions released during this process, the company decided to search for a more cost-efficient and eco-friendly alternative.

Solution:
AWS developed a solution which combines several components in one system. This caters for the various working requirements. In order to save costs, elements (destillates) used in all processes have been integrated within the overall control system. The air cleaned by the AWS filter can be brought out on ground level and complies with the strict environmental laws. The reclaimed solvents can be reused and thermal combustion is no longer required.

Industry: Services (Hotel) 

Problem:
The kitchen waste of a 5 star hotel is collected at the back of the hotel in an underground tank and collected by the refuse collection service once a month. Odour formation often makes it impossible to rent out the above lying rooms.

Solution:
The AWS system very effectively neutralises the excaping greases and odours, and requires virtually no maintenance. It does not create any audible running noise. Now the hotel is able to rent out the rear of the hotel-room wing without restrictions.

Industry: Chemical industry 

Problem:
During the lime production process, deposits (eggshell) form due to the variations in air humidity. This can enter the finished product and impairs the quality of the lime. The client has already attempted various solutions, all of which have not brought any satisfactory results.

Solution:
AWS installed a process air humidification system, which solved the problem of incrustation. 750 litres of water are introduced into 90,000m3 of air every hour. The AWS technology enables precise and consistent control of the amount of humidity entering the production hall, which prevents incrustation. Due to the robustness of the installation, it is possible to operate it in dusty and strongly vibrating production towers. The installation runs 24 hours, 7 days a week.

Industry: Services (Bank) 

Problem:
The air in the counter area of a bank is very dry. Employees and customers alike suffer from this arid air.

Solution:
An AWS installation ensures consistent humidification (55%). It has been designed to exactly cater for the dimensions of the counter area and the offices. The AWS filter system introduces the humidity on a molecular level. This prevents the formation of drips in the air channels and thus also prevents bacterial contamination. The plant requires little maintenance from utilities management.