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Hospital & Lab

Sterilization and Disinfection of contaminated hospital and lab wastewater

Case Study

Often hospitals, morgues, and other activity units that deal with wastewaters contaminated by human organic matter and potentially hazardous pathogenic do not process such contaminated waters before their disposal. This happens especially when they are connected to municipal systems. If the site is not connected, the investment in wastewater treatment can reach thousands of euros per ton of effluent, resulting in an absence of wastewater treatment before disposal.

Unfortunately, the health sector wastewaters carry several risks for local populations and the facility’s staff if not well taken care of. Here are some of those risks:

  • Workers at municipal facilities can fall ill if directly exposed to such effluents.
  • The facility’s staff, users, and even patients may also be exposed to pathogenic viruses and bacteria.
  • In certain cases, the treatment environment at the municipal facility can contribute to the growth of several viruses and bacteria, such as hepatitis.

Thus, to avoid these risks for the population and the environment, the European Union is insisting on legislation implying the treatment of health sector wastewaters in their source. For this reason, several European sites have already installed wastewater treatment systems, to become compliant and reduce the risk for the public health.


What do they do?

The traditional and still current approach to the health sector wastewater treatment is to containerize and outsource disposal of contaminated waters or send them to incineration or, although not legal, simply reject them together with sewage.

What are they trying to achieve?

What clients from the health sector try to achieve concerning wastewater treatment is to eliminate any source of public health hazard for patients, workers, and the general population.


Ozone treatment for wastewaters: increases safeness, decreases costs,
and demands lower maintenance

Ozone treatment achieves complete elimination of harmful bacteria and viruses – the most powerful oxidizer available.

Effluents are treated at room temperature and normal pressure, avoiding the cost and risk of a heated and under pressure process.
The whole system is completely hermetic, with no contact between operators and effluents.

Simple replacement of UV lamp every 5000 hours, general cleansing if running with long downtimes.

Units for lab scale, on-site installation, or full hospital scale on specific site areas. For the later, either standard models or customized systems may be necessary. These solutions are cheaper, much easier to operate (as there are no steam requirements), and smaller than autoclave.



Total elimination of hazardous contaminants by using ozone treatment for wastewater

At stake, we have here one more successful case of wastewater treatment solutions for health units. The results achieved were the total elimination of hazardous pathogens, such as viruses and bacteria, and delivery of safe wastewater which can be handled in any treatment plant. Along its whole path, from its point of generation down to the treatment plant, the wastewaters will be safe for maintenance, manipulation, technical interventions, and even if any leak happens, no risk nor hazard will be spread among workers, patients, visitors, and the general population. The results validated through independent renown virology research institutions set a log4 reduction on MNV and HAdV with a real treatment device, running in a real lab operation.

Data Results

Numbers on how ozone treatment for wastewaters is reducing virus and bacteria



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