Reliable treatment of condensates from drying and evaporation
In numerous industrial production processes or environmental applications, contaminated distillate is produced in large-scale separation processes. This substrate is also called condensate, vapor condensate, drying vapors or simply vapors. They are produced during the drying of substances.
An example is the thermal utilization of sewage sludge as CO2-neutral fuel:
Sewage sludge is increasingly incinerated in mono-fuel plants that allow the recovery of phosphorus. The upstream drying process of the sewage sludge produces exhaust air saturated with water vapor, the so-called drying vapors. Depending on the type of drying and the drying temperature, they contain solids in the form of dust as well as highly concentrated organic or nitrogenous compounds (odor-intensive ammonia). The exhaust air produced must not be emitted untreated.
In most applications, the vapor is condensed for thermal utilization purposes, which offers many advantages. Gas and odor emissions of surrounding areas are reliably prevented. Space-consuming investments for gas purification are avoided. The pollutants are swiftly transferred to the liquid phase, the so-called vapor condensate. This, however, requires post-treatment on the water side.
In dissolved and thus volumetrically concentrated form, the pollutants can be inertized very efficiently when using intelligent water process technologies. Modern WEHRLE processes, like for example the high-performance BIOMEMBRAT® Membrane Bioreactor, offer excellent conditions for the combined elimination of highly concentrated organic matters and ammonium. WEHRLE’s solutions are highly efficient and compact. They cannot be compared with conventional municipal sewage treatment technology in large concrete tanks.Core unit of a containerized condensate and distillate treatment plant
designed by WEHRLE
In many cases, a single-stage removal of the main water pollutants from condensate and distillate is sufficient to achieve the quality for indirect discharge into the sewer system. Yet even with several treatment steps, WEHRLE plants can be operated economically due to their small footprint and attractive conditions.
Your advantages – condensate & distillate:
- Independence from local conditions and location policies
- Reduction of approval risks for your project
- Economically reliable calculation over decades
- Full automation, also for emission ranges, without high personnel requirements
- WEHRLE systems: modular design, possibility of future extension, longevity!