Sustainable Environmental Engineering

6Resiliency on Temporal Scale

Minimal interruption of infrastructure service ensures the continuity of economic prosperity.

OBJECTIVES

• To define and quantify the resiliency of EEIS
• To carry out mass balance for steady versus unsteady systems
• To formulate different mathematic models in predicting population growth
• To design an equalization tank to reduce unsteady effect
• To obtain rate constants using derivative versus integrated kinetic analysis
• To establish reaction kinetics and mechanisms of catalysts that reduce reaction time
• To estimate reaction kinetic rate constant of organic pollutants with aqueous hydroxyl radicals by group theory or QSAR models
• To establish the temperature effect on SEE system performance and resilience under temperature variation
• To illustrate how Hammett analysis could be used to explore reaction mechanism in heterogeneous catalytic system such as UV/TiO₂
• To explore relationship between spatial and temporal scales in designing EEIS

6.1 Principle 3

Resiliency is the ability of EEIS to cope, recover, or adapt to chronic or acute stressors due to system properties such as robustness, adaptive capacity/redundancy, rapidity, and resourcefulness. In a simple term, resiliency refers to the ability to absorb shock such as temperature, flooding, or droughts. A simple quantification of resiliency is the time that an EEIS recovers from a stressor event and loss of function. On temporal scale, EEIS should be resilient over 20, 50, and 100 years with quantified ...