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Title: The factors determining nitrogen removal from sewage using a gravel bed hydroponic treatment system.
Author: Ashworth, Robert Frederick.
Awarding Body: Portsmouth Polytechnic
Current Institution: University of Portsmouth
Date of Award: 1991
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No abstract available
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Water pollution & oil pollution