IFAT 2022 - Fraunhofer IKTS

Trade fair / May 30, 2022 - June 03, 2022

IFAT

At IFAT, everything revolves around environmental technologies. From water and wastewater management to waste and raw materials management, the latest ideas, products and industrial solutions are presented at this international trade fair. Technologies in the fields of pollutant management, sustainable road construction or mineral engineering can also be discovered. The circular economy of the future will be on display for municipal and private disposers, industry representatives, service providers and scientists.

IKTS booth: Hall B2, Booth 101

Joint booth Fraunhofer SysWasser Alliance: Hall B2, Booth 215/314

Highlights

Hot gas cleaning with ceramic filter media

Compact hybrid systems for disinfection of wastewater and elimination of trace substances

Centralized closed-loop treatment of wastewater to drinking water

CO₂-neutral oxygen generation for ozonation in wastewater treatment plants

Detection and elimination of micropollutants

Event details

Location

Munich
IKTS booth: Hall B2, Booth 101

Joint booth Fraunhofer SysWasser Alliance: Hall B2, Booth 215/314

Date

May 30, 2022 - June 03, 2022

Hot gas cleaning with ceramic filter media

Ceramic filter media capable of cleaning have proven their worth in hot gas cleaning at operating temperatures of 800 °C and higher. Current projects are concerned with the hot gas dedusting of waste gases from the steel and lime industries in order to separate CO₂ from them. Fraunhofer IKTS has developed a new approach for this: by combining hot gas filtration with ceramic filters and CO₂ separation with nanoporous membranes, hot and dust-laden waste gases can be used for the first time to recover CO₂ as raw material and heat at the same time.

Other new process developments at IKTS are aimed at the energy-efficient and selective separation of valuable substances from hot gas processes by means of filtration. For example, phosphate-containing ashes can be recovered from sewage sludge monocombustion and heavy metals can be removed at the same time. The concept is based on a modification of the ashes during incineration and the directly subsequent separation of the reaction products. This material separation is carried out by hot gas filtration, making use of the different volatilities of the reaction products that form.

Compact hybrid systems for disinfection of wastewater and elimination of trace substances

Trace substances of anthropogenic origin pose new challenges for operators of water treatment plants. Previous technological solutions are very cost-intensive and a complete and residue-free degradation of such substances is often not possible. In cooperation with industrial partners, Fraunhofer IKTS is developing compact, robust and self-cleaning wastewater treatment systems that can be used both at the point-of-use as the last treatment step before consumption or at the point-of-emission for the treatment of organically polluted partial streams. For this purpose, ceramic microfiltration flat membranes are extended with a titanium dioxide-based photocatalysis zone and the filtrate is irradiated with energy-efficient UV-A LEDs. This allows particles to be separated, wastewater to be disinfected and organic trace substances such as pharmaceuticals, odorants and flavoring agents to be completely degraded in a single step. Possible applications include the treatment of hospital wastewater (yellow water from radiology stations), the removal of trace substances from drinking water before further use (beverage production), the disinfection of cooling tower water, or the treatment of organically contaminated industrial and municipal wastewater for reuse (recirculating water in aquaculture).

Topic: Porous ceramics in filtration and related applications

Industrial solutions: Water and waste water technology

Centralized closed-loop treatment of wastewater to drinking water

Central wastewater treatment plants are usually based on biological processes, which limits their performance and availability. Certain constituents, such as drug residues, are not degraded. In addition, the systems cannot be switched on and off at will and are therefore not very flexible. autartec® water treatment systems from Fraunhofer IKTS offer an alternative here, as purely physical-chemical processes such as filtration, electrolysis and photocatalysis are coupled together. It is crucial to design reactors and process chains in such a way that these processes are combined in a very confined space with high energy efficiency in order to treat wastewater into drinking water. This is made possible by the use of functionalized and highly stable ceramic components, such as membrane filters and cellular molded bodies. Results show that these key components can be used very effectively.

Industrial solutions: Water treatment using autartec® systems

CO₂-neutral oxygen generation for ozonation in wastewater treatment plants.

Fraunhofer IKTS is one of the leading research institutions in the field of material separation with ceramic materials. In the separation of oxygen – O₂ – from air with mixed conducting ceramic membranes, only IKTS is able to realize membrane modules and pilot plants with technically relevant throughputs up to about 60 Nm³/h O2. Here, the modular device concept and the patented process control are designed for on-site production of O₂ with minimal operating costs and CO₂ emissions. The oxygen produced is highly pure, sterile and dry. The ceramic membranes are based on readily available, recyclable material.

The company poXos® (pure oXygen on site) is based on this technology and will establish itself in the market as a supplier of O₂ generators for small and medium sized O₂ consumers. Customers benefit from low O₂ prices and CO₂ emissions. In wastewater treatment by ozonation, poXos® offers a considerably simplified and also closed process cycle. In addition to the on-site generation of oxygen, it includes integrated destruction of the residual ozone and reuse of the off-gas. A reduction in operating costs of up to 60 % can be achieved. For the first time, this enables climate- and resource-friendly as well as CO₂-neutral operation of the fourth treatment stage in wastewater treatment plants.

Flyer: Decentralized oxygen production (EN) [ PDF 3.71 MB ]

Detection and elimination of micropollutants

Fraunhofer IKTS develops technology combinations that are clearly superior to established approaches. New sensor concepts support the reliable detection of trace substances and the demand-oriented control of wastewater treatment. For the first time, IKTS will present an exhibit visualizing these approaches at the joint booth of the Fraunhofer SysWater Alliance (Hall B2 No. 215/314). By means of a touch screen, the exhibit illustrates a modular system for wastewater treatment. Membrane adsorption, photocatalytic oxidation, sonoelectrochemical oxidation as well as trace substance detection compose this and are integrated as physical components in the exhibit.

© Fraunhofer IKTS
Photocatalysis module for the treatment of potable water.

© Fraunhofer IKTS
Hot gas filtration test rig for honeycomb filters or filter candles.

Trade fairs

Trade fair / May 30, 2022 - June 03, 2022

IFAT

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Contact Press / Media

Maria Kaminski