28-EB in action. Concrete structure contains trickling filter system for aerobic post-treatment of wastewater after septic tank (note open brickwork to promote air circulation).  In the foreground, containers for leaf mould production – also a form of environmental biotech. 

28-EB in action. Concrete structure contains trickling filter system for aerobic post-treatment of wastewater after septic tank (note open brickwork to promote air circulation).  In the foreground, containers for leaf mould production – also a form of environmental biotech. 

Full size 4160 × 3120 pixels

28-EB in action. Concrete structure contains trickling filter system for aerobic post-treatment of wastewater after septic tank (note open brickwork to promote air circulation).  In the foreground, containers for leaf mould production – also a form of environmental biotech. 

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.