The volume of urban wastewater discharged after treatment in Japan is projected to rise from 15.4 billion cubic meters per year in 2024 to 15.6 billion cubic meters per year by 2028. This signifies a consistent year-on-year increase of approximately 0.32%. The wastewater discharge in 2023 stood at 15.35 billion cubic meters.
- Year-on-year increase: - From 2024 to 2025: 0.32% - From 2025 to 2026: 0.34% - From 2026 to 2027: 0.32% - From 2027 to 2028: 0.32%
The Compound Annual Growth Rate (CAGR) over the last five years is approximately 0.33%, indicating a modest upward trend in urban wastewater discharge.
Future trends to watch for include advancements in wastewater treatment technology, increased urbanization, and regulatory changes aimed at environmental conservation, which may influence the total volume of discharged treated wastewater.
