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Ostara's Pearl® System by Evoqua
A nutrient recovery solution to help transform wastewater treatment plants into true resource recovery facilities
![](/siteassets/images/products/anaerobic-wastewater-treatment/anaerobicdigestionretrofits-product.jpg?width=450&quality=80)
Anaerobic Digestion Retrofits
Expertise from simple repairs to complete replacements
![](/siteassets/images/products/aerobic-wastewater-treatment/dystor-product.jpg?width=450&quality=80)
Dystor® Double Membrane Digester Gas Holder Systems
Dome-shaped, engineered membrane system to store biogas, and prevent odors.
![](/siteassets/documents/products/anaerobic/duo-deck-covers-product-1.jpg?width=450&quality=80)
Duo-Deck Digester Covers
Fixed and floating steel digester covers and gasholders of the truss style, dual-deck design
![](/siteassets/images/products/anaerobic-wastewater-treatment/captivatorsystem-product.jpg?width=450&quality=80)
Captivator® System
Produce more biogas and consume less energy and space