Howard is the founder of Dryden Aqua Ltd and a marine biologist from Edinburgh.

The company was founded from his PhD research on molecular sieve ion exchange zeolitic sand filtration systems for closed system aquaculture and development of intensive aquaculture technology. His technology, while developed to improve animal health and protect the aquatic environment, is now being applied in numerous markets where clients demand effective, sustainable solutions to deliver clean, safe water.

Dr. Dryden has unique knowledge and experience of combining biology, chemistry and physical sciences to deliver unique portfolios of integrated technology to address water treatment across the spectrum. He is the inventor of the activated, bio and wormhole channel resistant filter media AFM®. AFM is used in the technology developed by Clean Water Wave.