Testing graywater treatment plants

Are American and Australian tests suitable for use in Europe?

Water reuse in countries with drought and water shortage is necessary in order to provide sufficient water quantity for public, agricultural or private use. In addition to the use of rainwater, the usage of purified graywater is becoming increasingly important.

There are no standards in place in Europe for testing graywater plants. Countries such as the USA, Canada, the United Kingdom and Australia, on the other hand, have developed testing standards. Testing graywater plants offers the advantage that the manufacturer obtains a certificate which guarantees the quality of his product under normal conditions and under different stress conditions.

Testing graywater plants creates trust in the functional efficiency of the treatment technology and the quality of the treated water. In performance standards limit values are given depending on the end use. Authorities, designers and consumers are thus provided with an instrument enabling them to decide on suitable technologies.

It is important for graywater treatment systems to be tested by an independent third party that is authorized to perform such a test. In Europe, consideration is currently given to drawing up a testing standard for graywater plants. The question is whether existing standards are suitable for use in Europe. The contribution presents the American and Australian standards and discusses to what extent these standards are suitable for testing in Europe. This question will also be considered against the backdrop of the international marketing of graywater plants.

Related articles:

Issue 2014-02 German small wastewater treatment plants

Prospects in Europe from a supplier‘s point of view –

Because of the keen competition here in Germany, many suppliers of small wastewater treatment plants are heading to the other European countries. They mostly hope to escape from the German competitive...

Issue 2018-02 Decentralized rainwater treatment plants

Technologies and testing procedures

Progressive soil sealing combined with an increasing occurrence of heavy rainfall events represents an enormous challenge for urban drainage. In addition, a significant proportion of the pollution of...

Issue 2013-01 Mall GmbH

Harvesting rainwater on site

Mall GmbH will demonstrate their competency relating to all aspects of rainwater on their stand at BAU in hall A1: The company is a sought-after partner in decentralized drainage solutions providing...

Issue 2014-02 The work for the European Standard for small wastewater ­treatment plants EN 12566

A never ending but always actual story –

Often inexperienced users of standards believe that standards are some kind of “Ten Commandments” of technology that cannot be changed any more. But standards reflect the accepted rules of...

Issue 2013-02 Revision of the European standard EN 12566-3 for small wastewater treatment plants

Impact from quality and quantity of raw wastewater in the EU Member states

Working with and at the European standard for small wastewater treatment plants EN 12566-3 for seven years, amending it the first time in 2009 and adding a second amendment, that will be published in...