Für den Inhalt der Angaben zeichnet die Projektleitung verantwortlich.
Dieses von der Gebert Rüf Stiftung geförderte Projekt wird von folgenden weiteren Projektpartnern mitgetragen: Different academic labs in Switzerland and abroad, such as EPFL, PSI, UNIL, UNIARK; Romande Energie SA; Landor AG; Pöyroy Engineering Groupt; Innovaud; Epura SA; Philip Morris Equity Partner; Miauton Management; Enable Program (EPFL); Venture Kick; Cimate-KIC; SPECO
Förderbeitrag: CHF 160'000
Dauer: 02.2016 - 10.2018
Handlungsfeld: Pilotprojekte, 1998 - 2018
Frédéric Juillard, CEO
Avenue Alexandre Vinet 22
1004 Lausanne (Schweiz)
- frederic.juillard@trea-tech. com
While wastewater can be recycled into valuable sources of water, nutrients, and energy, the water treatment byproducts, also known as sewage sludge, became a major waste product in most advanced societies. Today, more than 80% of sludge disposal is either incinerated or landfilled causing 2.8% of global greenhouse emissions, costing more than 150 MCHF per year in Switzerland (165 Bn globally) to Sewage Treatment Plants, and having potential harmful effects. Our catalytic hydrothermal gasification system was developed for the disposal of different types of liquid wastes that are usually incinerated or landfilled and instead, turns them into by-products such as clean water, biogas and mineral salts that can further be upgraded into Phosphoric Acid. This not only makes the sludge a new form a revenue instead of a cost but also reduces the contamination effects. Our main objective for the next 2 years is to scale up our lab-scale prototype to an industrial level and commercialize it in the Global Sewage Treatment Plant market. We plan to build our first commercial unit by 2020, with treatment capacity of 10 tons per day of sewage sludge.
Was ist das Besondere an diesem Projekt?
It is now well established that population and economic growth are placing water resources under increasing strain. Major regions of the world will face a massive water challenge in the coming decades if current trends continue – with potentially devastating consequences for human life and health, business and agriculture, international relations, and the environment if they do not adapt.
The growing volumes of municipal wastewater are increasing demand for efficiencies in treatment technologies to improve water reuse and recycling. Today there is an urgent need to develop innovative solution for a better management of sewage sludge. Regulations are crucial in this domain and evolve quickly. Within 2026, all Swiss facilities will have to recover Phosphate, a non-renewable resource essential to grow crops. We believe we have the right solution to meet with this new regulation. Many actual technologies focused on recovering phosphate out of incineration ashes, but today they are economically not viable. We know that if we can provide a cheaper solution to recover phosphate, we can get a huge market share since the need today is a reliable method to dispose the sludge, which can fulfill all regulations, and turn this waste into valuable byproducts.
Innovative side of the project:
Our sewage sludge disposal solution is unique since it is developed to turn sewage sludge into valuable by-products such as clean water, biogas and mineral salts.
Not only the TreaTech solution is 51% cheaper than current alternatives like incineration, but it does not produce CO2 emissions from burning the sludge. Moreover, we designed a technology that is installed on STP sites, and hence no longer requires any sludge transport to incinerators (20% of total sludge management costs).
Paradigm shift toward cleaner methods of wastewater treatment. Government legislation is now focused on maximizing the recovery of resources and is the most important driver of growth for sale of wastewater control technologies. All of the current solutions are unsustainable due to the loss of recyclable by-products such as Phosphate. TreaTech solves all critical legislative issues faced by STP’s today. Our technology is a clean alternative that offers a cost-efficient, eco-innovative and on-site solution for a high variable liquid waste disposal, promoting sustainability and green economy.
We divided tasks of our project in 3 work packages (WP):
WP1 was dedicated to the computer aided design and physical construction of the lab-scale semi-batch reactor that operates in supercritical conditions.
WP2 was dedicated to testing typical compositions of wastewaters from industrial and municipal streams. Several designs of our industrial scale plant were performed taking into account properties of the feedstock and the sewage treatment plants. Both WP 1 & 2 are already complete.
As of Feb. 2018, we have a lab-scale salt separator reactor able to process 1 kg. of sewage sludge per hours for more than 4 days. Thanks to our recently patented
high-pressure separation system, this prototype allows to continuously extract 100% of mineral salts and deliver a liquid effluent whose carbon compounds can be converted at >99.9% into biogas. The processed water meets Swiss legal standards for STPs.
Finally, WP3 will be dedicated to the reporting phase, and to the definition of a continuous, medium scale reactor. This new design will be physically realized in a future STP and integrated into the demonstrator existing at PSI, to test thermodynamic behavior of continuous flows.
Gassner M., Vogel F., Heyen G., and Maréchal F. (2011). Optimal process design for the polygeneration of SNG, power and heat by hydrothermal gasification of waste biomass: Thermoeconomic process modeling and integration. Energy & Environmental Science;
Gassner, M., F. Vogel, et al. (2011). "Optimal process design for the polygeneration of SNG, power and heat by hydrothermal gasification of waste biomass: Process optimisation for selected substrates." Energy and Environmental Science;
Gassner, M., F. Vogel, et al. (2010). A process and a plant for hydrothermal SNG production from waste biomass;
Luterbacher, J. S., M. Froling, et al. (2009). "Hydrothermal Gasification of Waste Biomass: Process Design and Life Cycle Assessment." Environmental Science & Technology 43(5): 1578-1583;
Peterson, A. A., F. Vogel, et al. (2008). "Thermochemical biofuel production in hydrothermal media: A review of sub- and supercritical water technologies." Energy & Environmental Science 1(1): 32-65;
Vogel, F., M. H. Waldner, et al. (2007). "Synthetic natural gas from biomass by catalytic conversion in supercritical water." Green Chemistry 9(6): 616-619.
New publications will be issued within the next 2 years considering results obtained by the mean of our lab-scale prototype.
Am Projekt beteiligte Personen
Letzte Aktualisierung dieser Projektdarstellung 17.10.2018