Patent
Water quality control in fish ponds
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TLDR
In this article, a system for water quality control and improvement in intensive fish culture systems is described, where the aim of the water treatment is to reduce the content of inorganic nitrogen and of organic matter.Abstract:
There is provided a system for water quality control and improvement in intensive fish culture systems. The aim of the water treatment is to reduce the content of inorganic nitrogen and of organic matter. The system comprises a fish pond, a settling pond, a fluidized bed reactor and a trickling filter. The system according to the invention can be an essentially closed one, except for periodic water replenishment. It is suited for ponds with sweet or salt water.read more
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References
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Journal ArticleDOI
Aerobic and anaerobic biofiltration in an aquaculture unit—Nitrite accumulation as a result of nitrification and denitrification
Jaap van Rijn,Guillermo Rivera +1 more
TL;DR: The rate of ammonia oxidation in the trickling filter was shown to be dependent on the ambient ammonia concentration in the unit, indicating that ammonia oxidation by the nitrifying bacteria was substrate-limited with respect to ammonia.
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Controlled denitrification process and system
TL;DR: In this article, a bed of anaerobic bacteria fed by a carbon source was used for nitrate reduction, and an industrial process control system was used to monitor inputs and control outputs.
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Water treatment in a plant for intensive fish culture
TL;DR: In this paper, the water is circulated in two circuits fed from a shared reservoir (110) for microbiological water treatment and mechanical solids separation The solions separation is preferably carried out in a filter or microsieve (104).