Maximum material recovery
Indaver is a supplier of high-quality materials and aims to expand this further. We continuously look for new and more efficient ways of recovering materials.
Indaver Molecule Management
Recycling is, mede dankzij de inspanningen van Indaver, de standaard geworden voor afvalstromen zoals glas, papier en plastics. Uit gevaarlijk afval kunnen we echter alleen grondstoffen terugwinnen als we zeker zijn dat dit veilig kan gebeuren voor mens en milieu. Indaver gaat deze uitdaging aan.
We zoeken voortdurend naar nieuwe en betere manieren om ook gevaarlijke afvalstoffen te valoriseren. In het verleden lag de klemtoon op het neutraliseren van gevaarlijk afval door molecules af te breken in chemische processen. Nu bestuderen we welke componenten van deze afvalstromen voldoende waardevol zijn om ze op een veilige en efficiënte manier terug te winnen.
We gaan dus kijken naar de kleinste bouwstenen, moleculen, en zien welke opnieuw nuttig en veilig kunnen worden gebruikt. Een voorbeeld hiervan is de zoutzuurregeneratie van Indaver bij Tata Steel in IJmuiden. We onderzoeken nu of en hoe we chloor, zwavelzuur, fluor, jodium en waardevolle metalen kunnen terugwinnen.
Precious palladium recovered from industrial waste
Given that our primary raw materials are diminishing and there is global pressure to reduce costs, our industry is reclaiming as many materials as possible from waste, from both the usual waste and additionally from complex industrial waste. Palladium is one of these rare natural raw materials - and consequently very expensive - which is used as a catalyst in pharmaceutical processes. In view of its rareness and high price, it is very beneficial for the industry to be able to recover this type of material.
Indaver set up Indaver Molecule Management® in order to reclaim as many materials as possible from that complex industrial waste. They analyse the chemical and pharmaceutical waste down to the smallest detail, or to a molecular level.
Special innovative techniques now make it possible to isolate rare and valuable molecules such as hydrochloric acid, iron oxide, rare earth metals, iodine and palladium without compromising on the quality of the end product. The leftover waste, is then processed in accordance with the strictest safety standards. That means rare materials can be re-used within the industry. At that point the circular economy becomes a reality because in doing this we are actually closing the loop.
Iodine recovery increases market competitiveness for European industry
Iodine has many applications: as an anti-oxidant in chemical processes, as a catalyst in the production of pharmaceuticals or as a contrast medium in medicine. Iodine is certainly an essential raw material for producing acetic acid, nylon and the familiar iodine tablets. Because iodine is mainly found in Japan and Chile and therefor has to be exported to Europe, this raw material is very expensive.
Iodine recovery is thus an economically efficient solution for Europe’s major industries. It also increases Europe’s independence as far as buying primary raw materials from other continents is concerned.
As a major player in Europe’s waste industry, Indaver manages around 5 million tonnes of waste a year. In the summer of 2014, Indaver set up a pilot project, together with a number of clients who have some waste streams that contain iodine. The primary consideration in doing this was environmental feasibility and the quality of the end residue. In-depth laboratory analysis of a range of test results confirmed the pure quality of the recovered iodine. To guarantee sales of larger volumes of recovered iodine, Indaver is in discussion with a range of potential buyers.
Based on our experience in the pilot test during the iodine recovery project, Indaver intends to scale up similar recovery technology with the ultimate aim of a full-scale recovery plant at its site in Antwerp.
Recovery of residues
Indaver examines how residues could be used from thermal treatment using energy recovery (waste-to-energy). This concerns recovery of rare earth metals, phosphorus and copper. This eliminates the need for mining new raw materials and significantly limits the amount of residues that is dumped.