What is EN ISO 27357:2011?

The EN ISO 27357:2011 standard is a comprehensive technical specification that sets the guidelines for the design and implementation of waste water treatment systems in various industries. It provides a framework for ensuring the efficient and effective treatment of wastewater, aiming to protect the environment and human health.

Key Components of EN ISO 27357:2011

The EN ISO 27357:2011 standard specifies the requirements for different components of a wastewater treatment system. These components include preliminary treatment processes, biological treatment processes, secondary treatment processes, tertiary treatment processes, and sludge treatment processes.

Preliminary treatment processes involve the removal of large debris, such as rocks and sticks, as well as sand and grit through screening and sedimentation. Biological treatment processes focus on the use of microorganisms to break down organic matter in the wastewater. Secondary treatment processes aim to remove dissolved and suspended organic matter using physical and chemical methods, while tertiary treatment processes target the removal of nutrients and other pollutants through various techniques such as filtration and disinfection. Sludge treatment processes involve the handling and disposal of the solid by-products generated during the treatment process.

Implementation and Compliance

To comply with EN ISO 27357:2011, companies need to develop and maintain wastewater treatment systems that meet the specified requirements. This includes proper design, installation, operation, and maintenance of these systems. The standard also emphasizes the importance of regular monitoring and assessment to ensure continued compliance and the achievement of desired performance targets.

Benefits and Impacts

The implementation of EN ISO 27357:2011 brings several benefits and impacts. Firstly, it helps to protect the environment by ensuring that wastewater is treated properly before being discharged. This reduces the pollution of rivers, lakes, and other water bodies. Secondly, it protects human health by preventing the contamination of drinking water sources and minimizing the exposure to harmful substances present in untreated wastewater. Lastly, the standard promotes sustainable development by encouraging efficient use of resources and the reduction of waste generation.