VOC and odour abatement efficiency
Thermal oxidisers installed worldwide
Years on discontinuous and variable processes
Industrial waste treatment generates some of the most complex gas streams of any sector: VOCs, odours, HCl, HF, HB2, SOx and fine particulates, often present simultaneously in the same stream. Variable composition, discontinuous flow rates, unpredictable peaks and among the most stringent regulatory limits of any industry. We design thermal oxidisers integrated with wet scrubbers and bag filters, calibrated to the real variability of the process to ensure regulatory compliance even under the most critical operating conditions.
In waste treatment, a single type of pollutant is rarely the only challenge. The gas stream often contains both organic VOCs and inorganic pollutants such as HCl, HF, HB2, SOx and particulates at the same time. This is why we design integrated systems: the thermal oxidiser abates VOCs and odours, the wet scrubber neutralises inorganic acids, the bag filter captures particulates. One plant, one responsible party, one interface for the client.
For high flow rates and continuous or semi-continuous streams. Up to 99% VOC and odour abatement, thermal efficiency up to 96%. Manages concentration and composition variations typical of waste processes.
Recovers heat through thermal oil or steam generation, returning energy directly to the client’s production process. Excess heat from the flue gases can be used to pre-heat the process gas or the combustion air. Suitable for processes with high and variable VOC concentrations or for flows too dirty to be treated by an RTO.
For inorganic pollutants HCl, Cl₂, HF, HBr e SOx generated by waste treatment processes. Corrosion and high-temperature resistant materials. Automated system with solid residue management in bulk bags.
For fine particulate capture, including sub-micron particles. Designed for aggressive high-temperature streams, integrable with scrubbers upstream or downstream, depending on the pollutant type.
No two waste treatment plants are the same. Stream composition, process discontinuity and local regulatory limits vary for every site. This is why every Donau Carbon Technologies project starts from an analysis, not from a catalogue.
We design RTOs capable of managing the concentration peaks and composition variations typical of waste processes without the plant going to bypass or requiring shutdown. Capacity from 3,000 to 330,000 Nm³/h.
For streams that simultaneously contain VOCs, acid pollutants, and particulates, we design the complete treatment train: each component is sized relative to the others to ensure overall compliance.
LEL sensors, process analysers and remote supervision from office: every parameter is recorded and made available for the documentation required by environmental permits and inspection audits.
The industrial waste treatment sector is subject to the IED Directive in its most stringent application, to the specific BAT BREF for waste management and to additional requirements imposed by local permits depending on proximity to populated areas. We design every plant integrating these requirements from the outset: emission limit values are not the project's finish line, they are the engineering input parameters.
We design to meet them under all operating conditions, including the emission peaks typical of start-up and transition phases.
At many waste treatment sites, local permits impose limits more stringent than those set by the IED. We design with site-specific requirements, not only national limits.
Every waste treatment plant differs in stream composition, operational discontinuity and local regulatory requirements. The questions we receive most often concern precisely the management of this variability.
We analyse the real emission time profile: flow rate, concentration, temperature and composition across the different phases of the process. The RTO is sized to manage peaks without oversizing for the average. We often integrate bypass or buffer systems to optimise energy consumption during low-emission phases.
Yes, but it requires an integrated sequential system: the thermal oxidiser abates organic VOCs, converting them to CO₂ and H₂O, but does not remove HCl and SOx, which are in fact concentrated in the combustion fumes. The downstream wet scrubber neutralises these acids with a basic solution before they are emitted to the atmosphere.
For acidic high-temperature streams, we use corrosion-resistant materials: special steels, high chemical resistance plastic linings or ceramic materials for parts in direct contact with the fumes. The choice depends on temperature, acid concentration and the composition of particulates in the stream.
Every Donau Carbon Technologies plant is can be equipped with a continuous emissions monitoring system (CEMS) that records relevant parameters, VOC, HCl, SO₂, particulate, temperature and flow rate concentrations in real time. Data is archived and made available for the periodic reports required by permits and for inspection audits.
Solvent recovery with vacuum nitrogen regeneration on a flexible packaging line. Solvent: ethyl acetate. Flow rate: 110,000 m³/h. X-CSR plant installed in 2024.
Solvent recovery on a flexible packaging printing line. Solvents: ethyl acetate and various. Flow rate: 110,000 Nm³/h. Installed in 2021.
Every waste stream is different. Tell us about your process: we will respond with a personalised technical analysis and a dedicated contact.
