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ISSN Imprimer: 2150-3621
ISSN En ligne: 2150-363X
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EXERGETIC OPTIMIZATION OF AN INTEGRATED MUNICIPAL SOLID WASTE INCINERATOR AND WASTEWATER TREATMENT PLANT
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RÉSUMÉ
The increase in human population results in high demand for clean and potable water and large municipal solid waste (MSW) generation. At the same time, a global scenario of freshwater shortage is expected. This paper presents an exergetic analysis and optimization of an integrated MSW incineration and wastewater treatment plant, in which thermal energy generated by incinerating MSW is recovered for wastewater treatment. The methodology consists of assessing the viability of the system through an exergetic analysis. The system is divided into three modules: (i) incinerator, (ii) heat exchanger, and (iii) microalgae-based photosynthetically driven emissions filter. A mathematical model is presented for steady-state operation based on the conservation laws and the second-law of thermodynamics. The system's exergetic efficiency is optimized for operating parameters (e.g., incineration rate and air-fuel ratio). The integrated plant enables heat recovery for steam generation and provides microalgae bioproduct that can be processed for high-value products (e.g., animal feed, nutraceuticals, pharmaceuticals).
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