-   Article AERwater: Knowledge of the exact load profiles

AERZEN prepares for Water 4.0

With AERwater, AERZEN brings together analysis, engineering, equipment technology, financing and service into one integrated system. With AERwater, AERZEN has developed performance modules that bring the principles of Industry 4.0 to wastewater technology. They form the basis for future Water 4.0 solutions.

The energy requirements of waste-water treatment plants are interdependent in many ways. These include the special features of the cleaning procedures used, the overriding cleaning target, various local marginal conditions and the efficiency of the applied technology. The longest lever can be applied to aeration - specifically to ventilation technology. The supply of microorganisms with sufficient oxygen for ammonium degradation requires powerful blower technology, which requires around 80 percent of the energy required for aeration - and more than 50 percent of the total energy required by a wastewater treatment plant.

With AERwater, AERZEN starts precisely in this energy-intensive process area, since the savings potential through digitised, intelligent overall optimisations can be appropriately high. Assembled from precisely combined modules, AERwater covers the entire process air cycle from planning through to service.

The service module AERaudit starts with a measurement of the volume flows prevailing on site and the subsequent calculation of actual load profiles. AERZEN‘s service team, equipped with sensor technology, energy meters and data loggers, analyses the operating data in real time and obtains clarity during evaluation as to where low and peak loads lie and what potential savings rest untapped in the blower station.

The aim is to determine the compressed air requirement as precisely as possible so that the Performance³ calculation can then be carried out. Behind this is the tailor-made machine and technology design including the RoI (Return on Investment) calculations necessary for investment decisions.

Performance³ - The next generation

With Performance³ AERZEN achieves a new level of efficiency - in the form of the three high-performance technologies turbo blowers, positive displacement blowers and rotary lobe compressors. These technologies enable us to make the best possible selection in terms of energy efficiency for every application. The results of AERaudit form the basis for using the most suitable active principles or for freely combining them. Extended by the AERsmart machine control system different machine combinations can be continuously operated very close to the ideal operating point - which ultimately leads to extremely economical use of electrical energy.

However, optimisations are also available outside of pure machine technology. AERwater‘s machine room optimisation includes AERZEN‘s expertise in the planning of room ventilation and sound concepts as well as solutions for heat recovery. With a view towards the operating phase, AERwater also includes the realisation, i.e. the support of waste water companies in the dismantling of old plants, the commissioning of the new technology and the securing of operations during the construction phase with rental machines. Numerous services up to process monitoring round off the service package.