EVERYTHING FROM ONE SOURCE: THE FIRST PLACE TO GO WITH YOUR PROJECT

ACID FLY ASH WASHING: HIGH RESIDUE QUALITY WITH RECOVERY OF VALUES

Acid washing extracts salts and heavy metals from fly ash and concentrates them into recyclable form. The process pays for itself because the concentrate contains over 20% zinc. This operation is combined with wet flue gas scrubbing; the acid effluent from the scrubber is used as the wash liquor for the fly ash. Fly ash treatment yields extremely leach-resistant residues with low pollutant levels meeting the limits of the eluate test – the world's toughest. Acid washing reduces the dioxin content of the fly ash to well below all applicable limits. Your advantages: Clean residues that are easily disposed of Recovery of zinc Low treatment costs

Combustion system

THE COMBUSTION SECTION: THE HEART OF THERMAL WASTE TREATMENT The success of a thermal waste treatment plant rests on environmental safety, operational reliability, cost-efficiency and maximal energy recovery – but success comes only when the combustion and energy recovery systems are optimally paired. Our specialists combine custom concepts for every plant, precisely matched to site-specific requirements. One thing you can depend on: Our designs are always state-of-the-art and ensure optimal environmental and economic performance. The combustion system consists of the following components: The reciprocating grate, a component tested under the most extreme conditions The water-cooled Aquaroll® grate for high loadings A combustion chamber designed for optimal gas burnout The user-friendly combustion capacity control system A steam generator featuring high availability and long campaign times

ENERGY RECOVERY: DESIRABLE FOR MANY REASONS

Recovering the energy contained in waste is one of the key goals in thermal waste treatment. Our plants can recover this energy at efficiencies from about 60% to over 100% (with additional utilization of the heat of condensation present in the flue gas) and deliver it to households and/or industry for use. Because more than 50% of the energy content of non-recyclable waste comes from renewable sources, more than half of the recovered energy is CO2-neutral. This means there is a reduction in greenhouse gas emissions to levels below those of all other thermal processes. Energy from the treatment process can be delivered as: Heat for households and industries Electric power via high-efficiency cogeneration schemes Cold as an alternative form of energy

FLUE GAS SCRUBBING: MULTISTAGE PROCESS FOR LOW EMISSIONS

The flue gas scrubbing system comprises multiple stages in which gaseous pollutants and heavy metals are removed from the flue gas. The wet scrubber cleans up the flue gases reliably and with minimal doses of consumables even when the pollutant burden is high. Residues are extremely small in quantity. The pollutant-laden water is neutralized and either purified or concentrated by evaporation. The result is emission values just a fraction as high as the most stringent limits. Your advantages: Multistage treatment Minimal use of consumables Very small amounts of residues

FLUE GAS TREATMENT TO ABATE POLLUTANT EMISSIONS

Flue gas treatment processes that we have developed ensure that all pollutants are efficiently and sustainably eliminated. We provide customized concepts to guarantee better than required compliance with the world's strictest emission regulations. We supply processes from the following list to meet your needs: Multistage wet scrubbing with minimal use of consumables Semi-dry process for compact plants Dry sodium bicarbonate process for minimal residues SCR and SNCR processes for the complete destruction of nitrogen oxides Special reactors for dioxin removal

TOTAL PLANT OR PLANT SECTIONS: YOUR NEED IS OUR MISSION

Thermal waste treatment is our core competence With the know-how we have gained in the course of 75 years, we are the reliable partner for any task, from individual components to plant sections to turnkey plants with post-startup service, or even plant operation. We offer you the capabilities you need, reliably and on time. Our technology is known everywhere In Europe, the U.S.A. and Asia, our name is a synonym for high quality, reliability and on-time performance. Regardless of whether your plant is supplied by us, one of our regional partners or a licensee, Von Roll Inova technologies are your guarantee of economical operation and compliance with all environmental standards. General contractor or system vendor Do you need a total turnkey plant or just system components? Whenever you build on Von Roll Inova technologies, your project is in good hands. We can handle your turnkey plant, from feasibility studies, design and engineering all the way to fabrication, installation, commissioning and personnel training. And we are there for the planning and construction of plant sections such as combustion or flue gas treatment, too. We exercise the same care in designing and implementing these projects as we do in engineering and building total plants. We also assure a smooth handover at the time of commissioning. Von Roll Inova, setting the pace in thermal waste treatment for 75 years.