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Under the EU's Urban Waste Water Treatment Directive 1991, local authorities are obliged to construct secondary and tertiary water treatment plants by 2008. New wastewater treatment plants were built in Dublin, Cork, Limerick and Galway between 2000 and 2011, generating additional capacity equivalent to the needs of a population of 3.96 million.
2014 - In 2014 Tricel Novo attained the Benor Certificate (Belgian licence) for their wastewater-treatment plants. [13] 2015 - In May 2015, Minister for Jobs, Enterprise and Innovation, Richard Bruton announces the creation of 100 new jobs at Tricel. 40 of these are to be situated in the company's headquarters in Killarney.
Together, the four treatment plants receive about 150 million litres of wastewater on a typical day, using biological and ultraviolet treatment processes. The treated water is discharged to the sea. The sludge resulting from filtration and treatment is de-watered (with this water further treated) and the solid content is sent to landfills.
The largest wastewater treatment plants can be defined in several ways. The largest in term of capacity, both during dry and wet-weathers, is the Jean-R.-Marcotte Wastewater Treatment Plant in Montreal. With full secondary treatment of effluents it would be the Deer Island Waste Water Treatment Plant of Boston.
Eastern Europe still copes with much lower rates of 40%–65% of the population connected to primary wastewater treatment at least. [19] Europe in general is improving: Over the last decade more households accessed public treatment plants or even upgraded their treatment system (e.g. from secondary to tertiary treatment). [20]
Sewage treatment plant (a type of wastewater treatment plant) in La Crosse, Wisconsin. Wastewater treatment is a process which removes and eliminates contaminants from wastewater. It thus converts it into an effluent that can be returned to the water cycle. Once back in the water cycle, the effluent creates an acceptable impact on the environment.
The term sewage treatment plant (STP) (or sewage treatment works) is nowadays often replaced with the term wastewater treatment plant (WWTP). [7] [8] Strictly speaking, the latter is a broader term that can also refer to industrial wastewater treatment. The terms water recycling center or water reclamation plants are also in use as synonyms.
An industrial wastewater treatment plant may include one or more of the following rather than the conventional treatment sequence of sewage treatment plants: An API oil-water separator, for removing separate phase oil from wastewater. [43]: 180 A clarifier, for removing solids from wastewater. [44]: 41–15