What is this BS EN 12255-12 - Wastewater treatment about?  
BS EN 12255-12 specifies requirements for control and automation systems on wastewater treatment plants for more than 50 PT. If necessary, the control system should also be designed to cover the control of sewer systems in the receiving area of the wastewater treatment plant.
BS EN 12255-12 the necessary information and data which are needed for the design and implementation of such systems as well as the performance requirements with respect to the hard- and software. Differences in wastewater treatment throughout Europe have led to a variety of systems being developed.
BS EN 12255-12 gives fundamental information about the systems.
BS EN 12255-12 has not attempted to specify all available systems.
Who is BS EN 12255-12 for - Wastewater treatment? 
BS EN 12255-12 on Wastewater treatment is useful for: 
- Urban wastewater collecting systems 
- Urban wastewater treatment plants 
- Plants treating industrial wastewater similar to urban wastewater  
- Water supply treatment plants 
- Sanitation department authorities 
- Public works department officials  
- Government and municipality officials 
Why should you use BS EN 12255-12- Wastewater treatment?  
Treatment of wastewater provides an opportunity for resource recovery, that helps to drought-proof ongoing operations. Reclaiming and reusing industrial wastewater reduces demands on limited freshwater resources, as well as the amount of wastewater and the associated contaminants that are released to the environment.
BS EN 12255-12 provides a requirements for control and automation systems on wastewater treatment plants with more than 50 PT, along with a water  quality parameter list.
BS EN 12255-12 is intended to provide control and automation guidelines that helps to promote understanding between different business parties, governments, to collaboratively develop wastewater treatment and automate technologies among different countries, improve the efficiency of industrial wastewater reuse, and save and protect the environment. Due to the similar nature, it applies to wastewater treatment concerning discharge. 
BS EN 12255-12 describes control and automation that covers the basic and most important information required to properly operate industrial process waste-streams to quickly determine the requirement of the appropriate treatment or implement technology options for specific industries, reduce operating costs for enterprises, and ultimately promote the systematic development of process water treatment and reuse technologies for industrial application. 
