Resilience and Stability of Wastewater Treatment Plant under Stochastic Influent: A Novel Pollutant-Carbon Synergy Framework

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Global climate change is increasing the frequency and duration of random environmental variations, placing wastewater treatment plants (WWTPs) under dual pressures to remove pollutants control carbon emissions. This study introduces a novel Coupling Coordination Degree (CCD) index time-series generation model evaluate synergy between these objectives analyze impact influent stochasticity on performance, stability, resilience various processes. Under similar stochastic conditions, Anaerobic/Anoxic/Oxic-Membrane Bioreactor (A²/O-MBR) Cyclic Activated Sludge System (CASS) processes demonstrate superior performance compared Carrousel Oxidation Ditch (OD) Anaerobic/Anoxic/Oxic (A²/O). A evaluation framework was developed assess varying Autocorrelation Coefficient (ACC) values revealing that as ACC approaches zero, reduced fluctuation results in more uniform pollutant capacity loads, which enhances stability. The rankings highlight advantage CASS, attributed its cyclic operation mode, while A²/O-MBR shows greater sensitivity load fluctuations. provides methodological for evaluating stability urban infrastructure systems conditions insights security policy development management.

Language: Английский

Resilience-Oriented Analysis and Enhancement of Smart Infrastructure Using a Cyber-Physical-Social Dynamic Metanetwork Approach

Journal of Management in Engineering, Journal Year: 2025, Volume and Issue: 41(4)

Published: April 15, 2025

Language: Английский

Effects of the Policy of Re-Designation of Counties as Cities or City Districts on the Agricultural Carbon Emission: Evidence from the Yangtze River Delta Region in China

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 8088 - 8088

Published: Sept. 16, 2024

It is of great practical significance to utilize the agricultural carbon emission reduction effect policy re-designation counties as cities or city districts (RCCD) achieve high-quality development. This paper uses panel data 39 in Yangtze River Delta region China from 2010 2022, and adopts a staggered difference-in-difference model threshold identify causal impact RCCD on emissions (ACE). We show that: (1) Overall, exerts tangible dampening ACE, with experimental group exhibiting significant 0.069 compared control post-implementation policy. (2) A dual-threshold environmental regulation emerges context RCCD, wherein ACE varies depending level regulation. (3) The notable inhibitory influence urban high urbanization levels, underdeveloped regions central regions. (4) Agricultural green technology progress plays mediating role relationship between ACE. (5) suppressive characterized by delayed enduring influence. Our study has both theoretical implications for accelerating

Language: Английский