Innovative Water Management

Re–Circulation and Re–Use: How Smart Water Comes to Life

Page: 6/6

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Water and Hygiene Management

Cooling systems play an important role in industrial process flows. Cooling water needs to be treated to prevent deposits and corrosion, and also to maintain hygiene standards. The water in the cooling loop is permanently infested with legionella and pseudomonads, creating a health hazard for the staff working at industrial companies and also putting neighbors at risk. The hazard can be minimized by reducing aerosol release and implementing active legionella control measures.

The VDI guideline 2047-2 dated January 2014 contains a code of practice for hygienically sound operation of systems which release heat through the evaporation or spraying of water. The guideline recommends that a risk assessment be carried out for the complete system. The measures include inspection and documentation as well as identification, evaluation and minimization of risks.

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Battling Biofilm Formation

Companies such as EnviroChemie and BWT offer legionella management solutions. The Cillit CEE Facility Management & Risk Analysis Package includes holistic risk analysis and verified monitoring of evaporative chilling systems. To eliminate water-related deposits and corrosion as a potential source of biofilm formation, Dipolique recommends installation of a properly designed water treatment system, use of suitable conditioning agents and management of total salt content based on data acquired with inductive conductivity probes.

Conclusion

Resource conservation and economic considerations make it imperative to carry out intelligent ‘use’ of industrial process water and to ‘consume’ as little as possible. Water should not be transported, heated or contaminated more than its process requirements.

* Source: ACHEMA/ published in PROCESS Worldwide Subcontinent Edition

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