Conversion from waste to soil.

"Our research studies, ranging from laboratory analyzes to economic evaluations, create a sustainable impact with resource recovery."

Summary

Struvite is a nutritious slow-release fertilizer produced via precipitation of waste streams. It is considered as an optimal phosphate recovery due to 51.8% P2O5

content in its structure.

Project

Nutrient Recovery and High-value Fertilizer Production from Biogas Plant Wastes

This project is funded by RaEng (Royal Academy of Engineering).

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What is Struvite?

Struvite, magnesium ammonium phosphate/MAP (MgNH4PO4.6H2O) is considered as the optimal phosphate mineral for recovery as it contains 51.8% of P2O5 (based on MgNH4PO4) and could potentially be used as a slow-release fertilizer. It is a waste product in biogas or wastewater treatment plants and formed via precipitation.

Benefits

Struvite crystallization in the pipeline and its accumulation cause significant environmental and industrial issues such as pollution problems like eutrophication, odor formation, clogging in the pipelines, ............

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Usage Areas

Slow-releasing, high quality, eco-friendly fertilizer. Building coatings with simultaneous photocatalytic activity for clean-up of surface adsorbed pollutants, Excellent host for radioactive cesium. Flame-resistant behavior ............

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Examples in the World

In the Netherlands, struvite is recovered with 80-90% efficiency from anaerobic effluent or rejection water and it is mixed up with other fertilizers or exported to Germany. Japan recovers struvite from ............

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Product

It is experimentally proved that struvite fertilizer with its composite and high Mg content is more effective than single superphosphate in boosting the plant yield and phosphorus uptake.

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