System und Verfahren zur Verarbeitung von Abwässern und Verwendung bei der Herstellung von Mikroalgen

Details

Veröffentlichungs-Nr.

EP4790127

Anmeldetag

30. Dezember 2025

Veröffentlichung

12. August 2026

Rechtsraum

EP

IPC

C12M1/00, C12M1/107, C02F11/02

Abstract

A system and method are provided for processing an industrial effluent and cultivating microalgae. The system comprises a primary tank, a screening unit with a motor-driven cleaning mechanism, a flocculation tank supplied with a chemical flocculant, a sand filter, an acidification unit with pH control, a solid-liquid separation unit, an anaerobic digestion unit, and a microalga cultivation unit. The effluent is screened, flocculated, filtered, acidified to a pH from 4.2 to 5.2, preferably 4.45 to 4.75, and subjected to solid-liquid separation to remove precipitated proteins and destabilised colloidal material, thereby producing a clarified effluent. The clarified effluent is anaerobically digested at a defined organic loading rate to generate biogas and a liquid digestate. At least a portion of the digestate and/or carbon dioxide derived from the biogas is used for microalga cultivation. The system enables stable anaerobic digestion without membrane-based pretreatment and provides a conditioned stream suitable for downstream microalga growth.

Anmelder

Firma

Oprimee - Innovation Design Engineering Solutions, Lda

Land

🇵🇹 Portugal

Fachgebiete