Introduction

Whole Systems Approach to Ecological Design

Appropriate Technology: Water

Organic Agriculture and Local Food

Appropriate Technology: Energy

Green Building & Retrofitting

Biological Processes in Wastewater

This section describes the biological theory behind the design of natural treatment systems.  It is good to have a general understanding of the biology, which will help in understanding the design process and also in operating natural treatment systems.

• Anaerobic Digestion
• Aerobic digestion
• Nitrification
• Denitrification
• Plant Rhizospheres

• Biological Processes in Wastewater
  • Anaerobic Digestion
  • Aerobic digestion
  • Nitrification
  • Denitrification
  • Plant Rhizospheres
• Building Constructed Wetlands