Freshwater and non-freshwater
Freshwater and non-freshwater are terms used in sustainability reporting to describe the type of water available. Freshwater is defined as water with a filtrate dry residual (TDS) of less than 1,000 mg/l, while non-freshwater includes all other types of water that exceed this limit.
The distinction between freshwater and non-freshwater is of great importance for sustainability, as freshwater is crucial for most human activities, including agriculture, industry, and drinking water supply. Non-freshwater sources such as saltwater, brackish water, and wastewater can only be treated into drinking water through complex processes, which require significant energy and resources.
The sustainable use of freshwater sources is therefore crucial to ensure that they are preserved for future generations. This should take into account not only ecological aspects, but also social and economic factors. Sustainable water management includes measures such as the promotion of water efficiency, the creation of water conservation areas and the use of innovative technologies for water treatment.
Overall, the distinction between freshwater and non-freshwater is an important aspect of sustainability reporting as it provides insight into the availability and use of water sources and can thus help to promote sustainable water management.