Tag Archive for: heavy metal depletion

Phosphate fertilizer from sewage sludge ash

The amended Sewage Sludge Ordinance gradually restricts direct agricultural utilization and requires operators of large sewage treatment plants to recover the phosphate bound in sewage sludge and ashes. A new approach makes it possible to fully recycle sewage sludge ashes and make the phosphate available for standard and compound fertilizers. (article in German language)

Phosphorus Recycling – Sustainable Growth Formula

Phosphorus recovery: Glatt Ingenieurtechnik has developed an innovative process that converts sewage sludge ash economically and without waste into fertilizer granules that can be marketed directly. (Article in German)