Development of customer-specific solutions – from conception to plant engineering
Since 2003 until 2015, three independent plants for freeze- and vacuum drying of books, archive materials and other types of mobile cultural heritage have been installed at the shared location of ZFB and ZFB-PM in Leipzig. ZFB-PM has optimized those plants over years for a high performance with a possibly low energy consumption to enable an economic operation in the high-competitive conservation market. In the last decades for instance, harmed and endangered books after the fire at the Herzogin Anna Amalia library, the collapse of the Collogne City Archive or after several local flood catastrophes have been saved by a treatment in the in-house optimized freeze-drying process.
From 2004 to 2012, ZFB-PM developed and commissioned a novel industrial mass deacidification process for books and archive documents – the ZFB:2 process. Since 2012, the ZFB:2 plant with integrated vacuum drying and solvent recycling is successfully in operation and has by now after capacity expansions become the world’s largest mass deacidification plant for the treatment of archive documents and books which are endangered by acidic catalyzed degradation processes.
Furthermore, the portfolio of ZFB-PM includes the chemical development, process-engineering and production of sub-micro-dispersions, which can be used as e. g. deacidification agent (impregnation) or for the production of technical ceramics (ferrits).
In the past years, beyond that, we adressed microwave-based drying processes and have experiences in the construction and production of appropriate plants.
A further current focus is nanotechnology, especially the plant development for the production of nanocellulose (microfribrillated cellulose).
Paper splitting plant
One of our focal points are plants for the preservation and restoration of paper documents, e. g.:
Beyond that, we also process development tasks in further fields of technology, like:
Of course, our services include the machine assembly, commissioning and the training of your employees. Subsequently, we provide a fully After-Sales-Service with technical support, maintenance and delivery of consumable supplies.
HOMIVAT is funded by the KMU-innovative program and aims for the development of a combined microwave-vacuum drying process for food industries. The novel drying process shall be applied without rotating drums like the current state of the art and will work with an optimized energy input, specially matched to the specific drying course. HOMIVAT moves microwaves – not the drying goods.
At the end of the project, a functional demonstrator at technical scale shall be available. The process can be used to gently dry sensitive foods like fruits, mushrooms or herbs with high quality.
The project is processed since 01.01.2018 in cooperation with AFORMA GmbH and AFT microwave GmbH.
Pomace is a by-product of the processing of fresh fruit and results when the fruits are grounted to mash. The resulting juice will be processed further but the remaining valuable pomace is actually used as animal feed. Today only about 10% of the resulting pomace amounts are dried and used for different products (additive in medical products, tea, fruit bars). It is well known, that pomace usually contains more valuable active agents than the actual juice. Classic drying processes are very time-consuming (10 hours or more) and expensive and even worse: they destroy a large percentage of precious vitamins and active agents.
The project aims for the development of a highly efficient microwave-based drying process which allows drying times of up to one hour to create a bio-material of high value, e. g. for food industries.
The project is processed since 01.01.2020 in cooperation with TESOMA GmbH, IfU GmbH – Privates Institut für Umweltanalysen and Naturmittel Biller.