CECAEN Rev 3
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Division 37

Collection and treatment of wastewater

This CAEN division covers all activities related to the collection of wastewater from households and industry, as well as its treatment for discharge into the environment. If your business involves the collection of wastewater through sewerage networks and its treatment in treatment plants, this is your code.

Included Activities & Applicability

  • ✅ Collection of domestic and industrial wastewater Treatment of wastewater through physical
  • ✅ chemical and biological processes Maintenance and operation of treatment plants Transport of wastewater through sewerage networks Treatment of sludge resulting from treatment

Excluded Activities & Restrictions

  • ❌ Construction of sewerage networks (code 4221) Water prospecting and drilling activities (code 0910
  • ❌ 4221) Distribution of drinking water (code 3600) Collection and treatment of groundwater or surface water for drinking purposes (code 3600)

Subordinate Structure

370 Collection and treatment of wastewater
→
3700 Collection and treatment of wastewater
→

Detailed Analysis & Commercial Insights

CAEN Division 37: Collection and Treatment of Wastewater

CAEN Division 37, entitled "Collection and Treatment of Wastewater", represents an essential component of the environmental infrastructure in Romania. It covers the entire wastewater management chain, from collection from households and factories to treatment for the protection of water resources. In the context of accession to the European Union, Romania had to align treatment standards with European directives, which generated massive investments in the modernization of treatment plants and the expansion of sewerage networks. Macroeconomically, this niche contributes to public health and environmental sustainability by reducing pollution of surface and groundwater. Entrepreneurs active in the field face challenges related to high operating costs, the need for qualified personnel, and compliance with increasingly strict environmental regulations. However, the demand for collection and treatment services is increasing, especially in urban and industrial areas, where wastewater volumes are significant. The long-term outlook remains favorable, with financial support from European and national funds for infrastructure development. To succeed, operators must focus on energy efficiency, technological innovations, and partnerships with local authorities.