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Articles

RECIRCULATING WATER TREATMENT TECHNOLOGIES FOR CLOSED-CYCLE PLANT GROWTH SYSTEMS – THE SPF TREATMENT SYSTEM

Article number

481_62

Pages

527 – 538

Language

Abstract

The SPF (Specific Pathogen Free) is a closed-cycle water treatment technique for biological systems that removes unwanted compounds from the nutrient solution, delivers required compounds to the root zone, and controls potentially harmful microorganisms.
The benefits of this technique are resource recovery, elimination of discharges into the environment, and protection against root diseases and build up of phytotoxic contaminants.
The growing systems suitable for use with SPF technique, and the various processes involved in SPF water treatment are discussed.

Publication

International Symposium on Growing Media and Hydroponics

Authors

R. Evans, B. Vestergard

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1999.481.62

Online Articles (98)

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16. ROOT DISCOLORATION, GROWTH AND MICRO ELEMENT UPTAKE OF CHRYSANTHEMUM IN AEROPONICS AS AFFECTED BY IRON CHELATES AND PYTHIUM

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17. TWO INDUSTRIAL WATER-DERIVED WASTES AS POTENTIAL POTTING AMENDMENTS

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82. CARBON TOXICITY IN PLANTS

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A. N. Kämpf | P. Allen Hammer | T. Kirk

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87. FERTILIZATION AND GROWTH OF HIBISCUS STOCK PLANTS CULTIVATED AT HIGH LIGHT INTENSITIES

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88. HYDROPONICS WORLDWIDE

Merle H. Jensen

89. STATUS OF THE COMMERCIAL HYDROPONIC INDUSTRY IN THE UNITED STATES OF AMERICA

D. Brentlinger

90. STATUS OF THE GREENHOUSE INDUSTRY IN MEXICO

M. Steta

91. STATUS OF THE GREENHOUSE VEGETABLE INDUSTRY AND HYDROPONICS IN ONTARIO, CANADA

S. Khosla

92. STATUS OF THE GREENHOUSE INDUSTRY IN QUEBEC, CANADA

A. Carrier

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M. Mirza | M. Younus

94. DEVELOPMENT AND PROSPECT OF HYDROPONICS IN CHINA

Y.X. Xing | X.D. Meng

95. THE GREENHOUSE AND HYDROPONIC INDUSTRIES OF JAPAN

T. ITO

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E. Os | F. Benoit

97. GREENHOUSE INDUSTRY IN ITALY

A. Pardossi | F. Tognoni

98. PROTECTED HORTICULTURE IN GREECE

G. Mavrogianopoulos