International Patent: METHOD FOR DEEP NITROGEN AND PHOSPHORUS REMOVAL BY SELF-ENRICHMENT OF GRANULAR SLUDGE COUPLED WITH AUTOTROPHIC BIOFILM IN CONTINUOUS-FLOW URBAN WASTEWATER

GENEVA, June 26 -- BEIJING DRAINAGE GROUP CO., LTD filed a patent application (CN2025/121654) for “METHOD FOR DEEP NITROGEN AND PHOSPHORUS REMOVAL BY SELF-ENRICHMENT OF GRANULAR SLUDGE COUPLED WITH AUTOTROPHIC BIOFILM IN CONTINUOUS-FLOW URBAN WASTEWATER”. With publication no. WO/2026/118622, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: C02F 3/30

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

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