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Bioleaching in the WNA

Bioleaching 2015

Bioleaching I

IHK Reutlingen awarded towards the University of Tuebingen, Prof. Dr. Andreas Kappler, and Novis GmbH the award “Excellent Technology Transfer Neckar Alb”.

In a public ceremony the award was handed over to Prof. Kappler and to Novis GmbH. Novis was honoured for a newly developped process technology – Bioleaching – , to revocer Rare Eartch Elements and other metals from incineration slag by utilizing bacteria for the extraction.

Credits: Anna-Lisa Lange (IHK Reutlingen)

Please find here the official press release (sorry: German language only): à link


Bioleaching II

SZ Digital is describing the new Novis approach towards the Bioleaching. Bioleaching is focussing on the recovery of Rare Earth Metals and precious Metals from incineration slag by Bioleaching with the help of acids and bacteria.


Here you can find the full article (sorry: only in German): 



Novis in Moscow (2015)

Th 15th of Mai 2015 is the ceremonial opening of the exhibition: «Renewables – made in Germany». As main side event a scientifical-practical seminar is beeing held: "Potenzials of Green Energy" in Germany and in Russia.  Katherina Helle is beeing honored in presenting Novis and it contribution towards Green Energy.

The organizer is the Deutsches Wissenschafts- und Innovationshaus Moskau. The published announcement in russian language is here: Russian.

Biogas Journal 02/2015

Im Biogasjournal wurde über die Besonderheiten der Anlage Grimal in Südfrankreich berichtet: Diese Biogasanlage funktioniert mit reinem Schaftmist. Da keine Gärgülle ausgebracht werden soll, wurde zusätzlich ein Vakuumtrockner installiert, so daß am Ende der Prozesskette ausschließlich Dünger entsteht, der komplett an einen Düngerhändler verkauft wird. (Ein Klick aufs Bild öffnet den Originalbeitrag).

German Coffee Association


End of February Dr. Thomas Helle was invited as an expert for coffee waste digestion. On behalf of RENAC Berlin, he spoke to GErman coffee companies attending a seminar from the German Coffee association. He presented different concepts for the utilization of side streams from coffee rasting. Beforehand novis has done a biogas potential analysis for potentials for silver coffee skins.

Thomas Helle as expert at the BIOPRO BW GmbH

At the 15th of December in 2014, 'BIOPRO Baden-Württemberg GmbH' published an article featuring Thomas Helle. In particular, the article is about the exploitation of slag produced by waste-to-energy installations.

You can read the article right here.

GIZ - Presentation about Ghana

At the 20th November of 2014 Thomas Helle presented at the giz in Berlin (Link). The main topic of the presentation was the usage of innovative biomass potentials for the power production in Ghana. The international auditorium, composed of 60 people, was impressed by the many practical experiences of the novis company in the region of Subsahara in Africa. Especially the cocoa producers in Ghana see a big potential in their residues and to use them for power and heat production. Yet the bigger companies are holding back at the moment. They await the results of novis new technology to exploit cocoa shells and to reuse them for the production of cocoa products.

At the moment the novis company is building the first plant for the processing of cocoa shells. The implementation is expected to be at the end of 1.Q.2015.

Brussels – Biobased Initiative-Joint Undertaking

At the end of November Thomas Helle participated as expert for the European commission in Brussels as part of the Biobased Initiative – Joint Undertaking (BBI-JU). During the event high-level proposals of European companies had to be evaluated. The BBI-JU is a partnership between the European Commission and the bio-based European industry. The commission sees the central approach for innovative technologies of the next ten years in the bio-based industry.

Thomas Helle at the SWR1 TV-show

At the 18th of August (2014), the interview from SWR1 with Thomas Helle was broadcasted in the german television station ARD. In the following video you can watch the recording of the show. (unfortunately only in german language).



First Biogas Plant with Hydrolysis in Germany

Location of the plant (built in 1995, 350 kWel)
Location of the plant (built in 1995, 350 kWel)

The well known German Agency for Renewable Raw Materials (FNR) has recently published a new report, which shows that the use of hydrolysis for biogas plants can bring up to 24% more biogas (Link).


The novis experts built their first biogas plant with hydrolysis in the year 1985. Especially for substrates, that are heavy to use such as gras silage, champignoncompost, sheep manure or cocoa shells hydrolysis is under most circumstances the best choice to go for.


The FNR report claims, that the hydrolysis temperature has no influence on the results, whereby we have learned that the process stability and the outcome are heavily dependant on its temperature and the process organization.

Please feel free to contact us whenever you are planning the upgrading of an existing plant or the addition of new substrates.

SWR1 Leute: Thomas Helle (Radio Interview) (2014)

Thomas Helle at SWR1 Studio
Thomas Helle at SWR1 Studio

On the 1st of August, Thomas Helle was the studio guest of the day in the famous radio production "People" (Suedwestrundfunk). Moderated by Stefan Siller a debate was conducted about Africa, renewable energies, cocoa shells and the benefits of hypnosis for the company management.


A podcast - sorry: only in German language - can be found on the news pages of SWR.


Or just click on download.

Radio Interview Thomas Helle as download
MP3 Audio Datei 28.4 MB

Publicity: Cocoa, Rice and Banana (2014)

The newspaper "Renewable Energies" highlighted the engagement of Novis in Africa. Special attention was given to the possibilities of obtaining energy from rice husk, cocoa shells and banana stems.


Another report in the same newspaper presented the possibilities of African and Asian countries to cover significant amounts of their power demand by utilizing rice shells (rice husk). Novis has proven these possibilities with some running engines in West Africa.


We do believe, that power from rice husk is a good possibility. Furthermore Novis has developed a technology to transfer rice husk to food graded powder. Same holds true for the transformation of cocoa shells to cocoa powder.

Adobe Acrobat Dokument 237.3 KB
Adobe Acrobat Dokument 5.4 MB