About us

Dryden Aqua is one of the largest manufacturer of glass filtration media. As marine biologists, we have a unique knowledge combination and detailed understanding of the biological as well as the physio-chemical reactions in water. This has enabled us to develop and manufacture a highly innovative range of products such as the Activated Filter Media AFM®.

We are proud to provide sustainable and cost-effective solutions for the drinking & waste water industry, for aquaria and aquatic life support systems as well as for swimming pools worldwide.

About Dr. Howard Dryden

Dr. Howard Dryden 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.
Dr. Dryden has unique knowledge combination of biology, chemistry and technology and is the inventor of the activated, bio-resistant filter media AFM®. Dr. Dryden is one of the world’s leading experts in sustainable water treatment.

our mission

Our mission is to provide solutions that have a positive environmental impact on our ecosystem. We help to make this world a better place: a non-toxic environment for everyone.

SAVE THE OCEANS
SAVE THE PLANET

Dryden Aqua supports GOES Foundation to save coral reefs and restore plankton levels in our oceans.

the team that drives our mission

Dominik Graf

Managing Director, Dryden Aqua Distribution AG Responsible for Europe, Russia and Africa

Philipp Meyer

Managing Director, Dryden Aqua Ltd. Responsible for America, Asia & Australia

Mike Causer

Technical Director, Dryden Aqua Group Responsible for Aquaria and aquaculture Worldwide

Florent Thevenin

Sales & Marketing Manager

Jonathan Sollberger

Sales & Project Manager

Manuela Hauenstein

Marketing & Sales Administration

Dominik Schnyder

Logistic Manager

Marilyn Wakefield

Finance and Administrative Director

Anna Blunschi

Accountant

Jamie McBride

Operations Director

Matthew Dryden

Water process Engineer

Graeme McQuarrie

Sales Manager UK/Ireland

Terry Chang

VP Business Development SEA

Li Li

Business Development Manager China

Sean McDermott

VP Sales - North America

Karen McIntyre

Customer Service Manager
  • Dominik Graf

    Managing Director, Dryden Aqua Distribution AG Responsible for Europe, Russia and Africa
  • Philipp Meyer

    Managing Director, Dryden Aqua Ltd. Responsible for America, Asia & Australia
  • Mike Causer

    Technical Director, Dryden Aqua Group Responsible for Aquaria and aquaculture Worldwide
  • Florent Thevenin

    Sales & Marketing Manager
  • Jonathan Sollberger

    Sales & Project Manager
  • Manuela Hauenstein

    Marketing & Sales Administration
  • Dominik Schnyder

    Logistic Manager
  • Marilyn Wakefield

    Finance and Administrative Director
  • Anna Blunschi

    Accountant
  • Jamie McBride

    Operations Director
  • Matthew Dryden

    Water process Engineer
  • Graeme McQuarrie

    Sales Manager UK/Ireland
  • Terry Chang

    VP Business Development SEA
  • Li Li

    Business Development Manager China
  • Sean McDermott

    VP Sales - North America
  • Karen McIntyre

    Customer Service Manager

our locations

Our Factories

Dryden Aqua Distribution

Büsserach, Switzerland

Dryden Aqua Technology

Edinburgh, United Kingdom

Our Offices

Dryden Aqua Germany (DAG)

Weimar, Germany

Dryden Aqua North America

Dallas, TX, U.S.A

Dryden Aqua Asia (DAA)

Shanghai, China

our factories

Dryden Aqua Distribution
Büsserach, Switzerland
Dryden Aqua Technology
Edinburgh, United Kingdom

our offices

Dryden Aqua Germany
Weimar, Germany
Dryden Aqua North America
Dallas, TX, U.S.A
Dryden Aqua Asia
Shanghai, China

Sophisticated & sustainable glass factory

Our production is propably the most sophisticated glass processing factory in the world. We optimise every part to make the best material available, with the best shape and size for our applications.

AFM® is manufactured under ISO9001-2008 conditions and is certified under DWI EC Reg31, NSF50 & NSF61 for swimming pools and potable water use and HCAAP certified for food and drinks markets.

crusher

The recycled glass goes through a first crusher to break oversized pieces

magnet

We remove all ferrous and non-ferrous metal pieces using powerful magnets

blower

All papers and plastics are extracted with the use of specific blowers

spiral-wash

The glass goes into a unique spiral washer to clean off all impurities

dewatering

A dewatering screener is used before sending the glass to the dryer

rain-water-loop

Sustainable:

The rain water we use to wash the glass follows a unique “sustainable loop” at the end of which we can reuse it to wash more glass!

green-power

Self-sufficient:

To run our factory, we produce 90% of our own power using solar panels and heat recovery systems.

biogas

Zero waste:

The sludge we receive from the washing process is sent to a biogas company and used to produce electricity.

  • crusher

    The recycled glass goes through a first crusher to break oversized pieces

  • magnet

    We remove all ferrous and non-ferrous metal pieces using powerful magnets

  • blower

    All papers and plastics are extracted with the use of specific blowers

  • spiral-wash

    The glass goes into a unique spiral washer to clean off all impurities

  • dewatering

    A dewatering screener is used before sending the glass to the dryer

  • rain-water-loop

    Sustainable:

    The rain water we use to wash the glass follows a unique “sustainable loop” at the end of which we can reuse it to wash more glass!

  • green-power

    Self-sufficient:

    To run our factory, we produce 90% of our own power using solar panels and heat recovery systems.

  • biogas

    Zero waste:

    The sludge we receive from the washing process is sent to a biogas company and used to produce electricity.

arrows

We only use green and brown glass in the manufacture of AFM® because white glass does not contain the metal oxides needed to make the media self-sterilizing.

AFM® contains more than 95% green and brown glass.

pick-hack

The grading process of AFM® has been engineered to obtain a precise consistent particle size and shape.The sphericity and uniformity coefficient are crucial for the outstanding hydraulic properties of AFM®.

grain

The raw AFM® goes through a unique three-step chemical and thermal activation process. The Activation is the reason for its bio-resistance and superior filtration properties. The surface of AFM® is negatively charged. The surface of AFM®ng becomes hydrophobic (neutral charge).

lab

AFM® is manufactured under ISO9001-2008 conditions and is certified under DWI EC Reg31, NSF50 & NSF61 for swimming pools and potable water use and HCAAP certified for food and drinks markets.

  • arrows

    We only use green and brown glass in the manufacture of AFM® because white glass does not contain the metal oxides needed to make the media self-sterilizing.

    AFM® contains more than 95% green and brown glass.

  • pick-hack

    The grading process of AFM® has been engineered to obtain a precise consistent particle size and shape.The sphericity and uniformity coefficient are crucial for the outstanding hydraulic properties of AFM®.

  • grain

    The raw AFM® goes through a unique three-step chemical and thermal activation process. The Activation is the reason for its bio-resistance and superior filtration properties. The surface of AFM® is negatively charged. The surface of AFM®ng becomes hydrophobic (neutral charge).

  • lab

    AFM® is manufactured under ISO9001-2008 conditions and is certified under DWI EC Reg31, NSF50 & NSF61 for swimming pools and potable water use and HCAAP certified for food and drinks markets.

  • Step 1

    The recycled glass goes through a first crusher to break oversized pieces
  • Step 2

    We remove all ferrous and non-ferrous metal pieces using powerful magnets
  • Step 3

    All papers and plastics are extracted with the use of specific blowers
  • Step 4

    The glass goes into a unique spiral washer to clean off all impurities
  • Step 5

    A dewatering screener is used before sending the glass to the dryer
  • Step 6

    The rain water we use to wash the glass follows a unique “sustainable loop” at the end of which we can reuse it to wash more glass!
  • Step 7

    To run our factory, we produce 90% of our own power using solar panels and heat recovery systems.
  • Step 8

    The sludge we receive from the washing process is sent to a biogas company and used to produce electricity.
  • Step 9

    We only use green and brown glass in the manufacture of AFM® because white glass does not contain the metal oxides needed to make the media self-sterilizing.

    AFM® contains more than 95% green and brown glass.

  • Step 10

    The grading process of AFM® has been engineered to obtain a precise consistent particle size and shape.The sphericity and uniformity coefficient are crucial for the outstanding hydraulic properties of AFM®.

  • Step 11

    The raw AFM® goes through a unique three-step chemical and thermal activation process. The Activation is the reason for its bio-resistance and superior filtration properties. The surface of AFM® is negatively charged. The surface of AFM®ng becomes hydrophobic (neutral charge).

  • Step 12

    AFM® is manufactured under ISO9001-2008 conditions and is certified under DWI EC Reg31, NSF50 & NSF61 for swimming pools and potable water use and HCAAP certified for food and drinks markets.

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Contact us

Dryden Aqua Ltd
Production, Research & Development
Butlerfield Ind. Est Bonnyrigg
Edinburgh
EH19 3JQ
United Kingdom
Mail: info@drydenaqua.com
Phone: +44 1875 822222