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SUSTAINABLE AND APPROPRIATE TECHNOLOGY VIDEOS
Natural Biological Systems Technology
12/12/07
09:13:13 am, by stynesjk 
, 49 words, 253 views 
Categories: Water and Sanitation (WATSAN), Constructed Wetlands
Natural Biological Systems Technology
Ayala water and ecology company specializes in natural biological systems (nbs) technology. This uses plants to purify water, soil, and air. For example, these systems treat waste water produced on agricultural farms so that it can be replaced into streams in compliance with environmental standards.
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This is a collection of existing videos on Sustainable and Appropriate Solutions used in the world today.The videos are divided by topics into several categories and sub-categories (see below).
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