Our global water resources are under pressure. In many countries, decades of uncontrolled and untreated wastewater discharge have resulted in severe environmental degradation of both inland and coastal waters. Even today, less than half of the world’s wastewater is collected and less than 20 percent is treated. This is a serious environmental challenge and one that also poses a threat to the long term sustainability of access to clean water sources for drinking water.
Simply improving the percentage of wastewater that is collected and derived from human settlements is not enough to ensure water security in the long run. UN’s SDG 6.3 seeks to halve the proportion of untreated wastewater discharged into our water bodies by 2030. This requires increased treatment capacity and optimisation of the treatment process to ensure that the final effluent discharge complies with the required quality standards according to the vulnerability of the receiving water environment.
New EU rules aim to ensure better drinking water and less waste
New EU directive map out how drinking water quality and supply can improve across the EU. Denmark has helped to focus on water waste in the revised EU directive aimed at ensuring consumers healthy and clean drinking water.
Unlocking the potential of wastewater
On a global scale, less than half of all wastewater is collected and less than one fifth is treated. This has led to severe environmental degradation of many inland and sea waters around the world. This white paper provides lessons learned from Danish stakeholders within wastewater treatment.
State-of-the-art treatment plant for hospital wastewater
Thanks to a public–private innovation partnership, Herlev Hospital in the Capital Region of Denmark has commissioned an entirely new purification plant that uses advanced technology to eliminate medicinal products and bacteria from waste water. Consequently, the hospital no longer releases cytotoxins and antibiotic-resistant bacteria into the sea. The waste water from the hospital is now […]
Bathing water quality in the harbour requires a modern sewer system
Copenhagen is one of the few cities in the world where you can safely bathe in the harbour. This is largely owing to the extension and upgrading of the sewer system that has taken place in the recent years. Among other things realized through closing of many of the outlets where combined sewer overflow was previously discharged in connection with heavy rain. Instead, large tanks have been set up for collection and delay of the wastewater, and control of sewer system and wastewater treatment plants has been introduced.
Implementing ARP at Bjergmarken WWTP
EnviDan has implemented the Activated Return sludge Process (ARP) at Bjergmarken WWTP in Roskilde. The ARP is used to increase the organic capacity, and thus prevent an otherwise necessary expansion of the plant. At Bjergmarken WWTP part of the bioconversion takes place in a separate volume where return sludge is added. This makes it possible […]