4.5 Article

Integrating online differential titrimetry and dynamic modelling as innovative energy saving strategy in a large industrial WWTP

期刊

CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
卷 24, 期 6, 页码 1771-1780

出版社

SPRINGER
DOI: 10.1007/s10098-022-02285-2

关键词

Nitrification control; Activated sludge modelling; On-line titrimeter; Energy saving

资金

  1. Consorzio Cuoiodepur S.p.A.
  2. Ente Cassa di Risparmio di Firenze (CORE project)
  3. European Union [872053]
  4. Marie Curie Actions (MSCA) [872053] Funding Source: Marie Curie Actions (MSCA)

向作者/读者索取更多资源

The present study successfully integrated an innovative online continuous titrimeter and plant-wide modelling as a support tool for the optimization of the nitrification unit in a large-scale industrial wastewater treatment plant. The combination of the online titrimeter and historical data modelling provided real-time information, assisting in optimizing the economic and environmental costs of the wastewater treatment plant.
Wastewater treatment plants (WWTP) are required to meet increasingly stringent effluent quality standards as well as to improve process sustainability in terms of energy efficiency, in line with the call for a paradigm shift towards the more sustainable concept of wastewater resource recovery facility (WRRF). In this context, optimised Instrumentation, Control and Automation (ICA) systems as well as process and plant-wide modelling have become key tools for optimising economic and environmental costs. The present work reports on the successfull integration of an innovative on-line continuous titrimeter and plant-wide modelling as a support tool for the optimisation of the nitritification unit in a large-scale industrial WWTP. The information gathered from the on-line titrimeter allowed for real-time estimation of the Ammonia Oxidation Rate of the activated sludge and, ultimately, of the nitrification residual capacity of the plant. Results on the titrimeter long-term operation and historical data modelling supported plant managing decisions, such as lowering the dissolved oxygen (DO) set-point of the oxidation unit, straightforwardly resulting in energy saving. [GRAPHICS]

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