Efficiency of a hybrid solid digestion-denitrification column in suspended solid and nitrate removal from recirculating aquaculture system
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چکیده
منابع مشابه
Biological phosphate removal in a prototype recirculating aquaculture treatment system
Efforts to reduce phosphorus concentrations in aquaculture systems have mainly dealt with improving the bioavailability of phosphorus in fish feed. Once released into the culture water, phosphorus is generally left untreated and discharged with the effluent water. In the present study, results are presented on a prototype recirculating treatment system originally designed for removal of organic...
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A simple process for nitrate removal is proposed for its application in aquaculture. Biodegradable polymer pellets are acting as solid substrate and biofilm carrier for denitrification. Laboratory experiments with conventional aquaria and fish were used to examine the feasibility and a first evaluation of the process performance in a recirculated aquaculture system. All over the test-period the...
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Dietary cholesterol has been shown to be essential for several crustacean species. However, cholesterol requirement of narrow-clawed crayfish has not been reported. Therefore, a 12-week feeding trial was conducted to determine deitary cholesterol requirement of narrow-clawed crayfish. Juvenile crayfish with an average body weight of 13.8±1 g mean weight were intensively stocked in an indoor rec...
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1. Current State of Aquaculture and Environment 2. Aquaculture Water Constituents 3. Waste Water Discharge Guidelines for Aquaculture 4. Introduction to Recirculating Aquaculture Systems (RAS) 5. Recirculating Aquaculture System Applications 6. Primary Clarification – Suspended Solids removal 7. Bacterial Processes 7.1 Nitrification 7.1.1 Nitrition 7.1.2 Nitration 7.2 Denitrification 8. Filtrat...
متن کاملEnhancement of Anaerobic Digestion to Treat Saline Sludge from Recirculating Aquaculture Systems
The effectiveness of carbohydrate addition and the use of ultrasonication as a pretreatment for the mesophilic anaerobic digestion of saline aquacultural sludge was assessed. Analyses were conducted using an anaerobic sequencing batch reactor (ASBR), which included stopped gas production attributed to the saline inhibition. After increasing the C : N ratio, gas production was observed, and the ...
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ژورنال
عنوان ژورنال: Environmental Engineering Research
سال: 2015
ISSN: 1226-1025
DOI: 10.4491/eer.2014.s1.011