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Veolia to deliver crystalline water-soluble fertilizer plant in Tunisia

Published by
World Fertilizer,


Veolia Water Technologies will provide a processing plant integrating HPD® crystallisation systems designed to produce phosphorus fertilizer of high purity and solubility.

The ALKIMIA Group, a Tunisian chemical holding company specialised in the production of phosphate salts for industrial applications, relied on Veolia to deliver its HPD crystallisation technologies at a new 25 000 tpy mono-ammonium phosphate (MAP) plant located in Gabes, Tunisia.

Integrated to the plant, which will produce higher-value fertilizer for regional export, Veolia designed a circuit to process mono and diammonium phosphate solution through a double crystallisation sequence using HPD PIC™ technology that allows for minimising the waste purge and achieving higher production yields. The production line includes solid-liquid centrifugal separation, drying, cooling, and screening systems to deliver a product with a large crystal size that has maximum purity (i.e. higher than 99% wt) and solubility (i.e. impurities concentration below 0.2% wt).

Because crystalline fertilizer production operations are complex, delicate and sensitive, Veolia proposed a solution that followed a series of laboratory tests to simulate the crystallisation process and confirm its technical feasibility at a bench-scale. This crucial step reduced the risks and gave the ALKIMIA Group the confidence that the proposed technical and commercial process is both straightforward and scalable.

“We are pleased to help ALKIMIA diversify its product portfolio into higher-value products. This project at Gabes reflects the confidence of leading MAP producers in Veolia’s crystallisation knowhow to deliver fully-soluble phosphorus fertilizers to a market hungry for sustaining crop yields amid increased water scarcity” stated Jim Brown, CEO of Veolia Water Technologies Americas.

Read the article online at: https://www.worldfertilizer.com/project-news/17102019/veolia-to-deliver-crystalline-water-soluble-fertilizer-plant-in-tunisia/

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