Biotreatment of fish farm effluents using the cyanobacterium Phormidium bohneri

Dumas, André; Laliberté, G.; Lessard, Paul; Noüe, J. de la

doi:10.1016/s0144-8609(97)01013-3

Cited by 62 publications

(27 citation statements)

References 9 publications

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“…Other widely used microalgae cultures for nutrient removal are Chlorella [119,120], Scenedesmus [121], and Spirulina species [122]. Nutrient removal capacities of Nannochloris [123], Botryococcus brauinii [124], and cyanobacterium Phormidium bohneri [125,126] have also been investigated.…”

Section: à3mentioning

confidence: 99%

Microalgae for biodiesel production and other applications: A review

Mata

Martins

Caetano

2010

Renewable and Sustainable Energy Reviews

4,668

2,494

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Section: à3mentioning

confidence: 99%

Microalgae for biodiesel production and other applications: A review

Mata

Martins

Caetano

2010

Renewable and Sustainable Energy Reviews

4,668

2,494

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“…In the province of Quebec (Canada), the limit for P loading from freshwater trout production is now regulated with a maximum permitted of 4.2 kg ton −1 of fish produced (TFAEDQ 2003). A number of technologies based on bioengineering, biotechnological, biological and chemical cleaning have been reported to reduce effluent P from aquaculture operation (Summerfelt et al 1995;Dumas et al 1998;Hussenot et al 1998). Many of these technologies are subject to high initial capital investment, difficulty in controlling critical operational parameters and are not particularly applicable for cage culture operations 10;thiamin,1;riboflavin,4;pyridoxine,3;20;0.01;niacin,10;biotin,0.15; folic acid, 1; choline, 1000; inositol, 300; magnesium carbonate, 1.24 g; calcium carbonate, 2.15 g; potassium chloride, 0.90 g; sodium chloride, 0.40 g; potassium iodide, 0.4; copper sulfate, 30; cobalt sulfate, 0.2; ferric sulfate, 0.20 g; manganese sulfate, 30; zinc sulfate, 40; dibasic calcium phosphate, 5 g; sodium fluoride, 10.…”

Section: Introductionmentioning

confidence: 99%

Effects of alternating feeding regimes with varying dietary phosphorus levels on growth, mineralization, phosphorus retention and loading of large rainbow trout (Oncorhynchus mykiss)

Koko

Sarker

Proulx

et al. 2010

Aquat. Living Resour.

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-Excessive phosphorus (P) levels in freshwater aquaculture effluents are a major environmental problem in certain receiving water bodies. This study aimed to test an approach alternating that alternating feeding P deficient and P sufficient diets and measure P loading from rainbow trout (Oncorhynchus mykiss) culture. Three experimental practical diets consisting of P-deficient (0.4% P, P04), optimum level of P (0.6% P, P06) and P-sufficient as control diet (0.8% P, P08) were formulated. Six different feeding regimes of P-sufficient diet continuously (P08), P-deficient diet continuously (P04), optimum dietary level of P (P06) continuously, one week P-deficient/one week optimum level of P diet (P04/P06.1), 2 weeks P-deficient/2 weeks optimum level of P diet (P04/P06.2) and 4 weeks P-deficient/ 4 weeks optimum level of P diet (P04/P06.4) were tested. Fish were fed twice daily to apparent satiation level 16 weeks. Fish fed all alternating regimes showed growth rate (weight and length) comparable to those of continuous feeding with P08 and P06 diet. The feed conversion ratios (FCR) for all alternating regimes were comparable to that of the P08 and P06 continuous feeding regime. Neither the thermal unit growth coefficient (TGC) nor condition factor (K) significantly influenced by feeding regimes. Vertebrae P, ash and whole body ash content did not differ among regimes. Except fish fed continuous P04 diet, the ash and P content in opercula and whole body total P content were not significantly different among each other in a continuous feeding and alternating feeding schedule. Fish fed all alternating regimes showed significantly lower P consumption than those fed continuously fed with P08 and P06. Different feeding regimes had no effect P retention. Significantly higher P loading (solid and dissolved) was noted in fish fed continuously with P08 diet, in contrast P loading values were lower for all alternating feeding regimes. The study demonstrated that growth and tissue mineralization of fish maintained on alternating feeding regimes with P04 and P06 diet were comparable to those continuously fed with diet of P08. These results demonstrate that it is possible to reduce P intake by 34% and reduce P loading 52% by adopting alternating feeding regimes compared to P08 diet. This study provides evidence that alternating feeding of P deficient and optimum dietary levels using practical ingredients can be adopted as a means of reducing P loading from rainbow trout culture without compromising growth.

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“…Other widely used microalgae cultures for nutrient removal are Chlorella [115] and Spirulina species [116]. Nutrient removal capacities of Nannochloris [117]), Botryococcus brauinii [118] and cyanobacterium Phormidium bohneri have also been investigated [119][120]. Environmental applications production of biodiesel and other bio-products from microalgae can be more environmentally sustainable, cost-effective and profitable, if combined with processes such as wastewater and flue gas treatments.…”

Section: Wastewater Treatmentsmentioning

confidence: 99%

Microalgal Biotechnology: Prospects and Applications

Mostafa¹

2012

Plant Science

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Plant Science 276composition, pigments and different constituents which may vary with salt stressed culture conditions and describe the antioxidant characteristics of algae. What are microalgae?Microalgae are prokaryotic or eukaryotic photosynthetic microorganisms that produce carbohydrates, proteins and lipids as a result of photosynthesis. They can grow rapidly and live in harsh conditions due to their unicellular or simple multicellular structure. Examples of prokaryotic microorganisms are Cyanobacteria (Cyanophyceae) and eukaryotic microalgae are for example green algae (Chlorophyta) and diatoms (Bacillariophyta). Microalgae are present in all existing earth ecosystems, not just aquatic but also terrestrial, representing a big variety of species living in a wide range of environmental conditions. It is estimated that more than 50,000 species exist, but only a limited number, of around 30,000, have been studied and analyzed [4]. Sunlight, water, nutrients and arable land are the major requirements for growing algae. Micro algae have the ability to fix CO2 using solar energy with efficiency 10 times greater than that of the terrestrial plants with numerous additional technological advantages. Algae are more efficient at utilizing sunlight than terrestrial plants, consume harmful pollutants, have minimal resource requirements and do not compete with food or agriculture for precious resources [5].

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Biotreatment of fish farm effluents using the cyanobacterium Phormidium bohneri

Cited by 62 publications

References 9 publications

Microalgae for biodiesel production and other applications: A review

Microalgae for biodiesel production and other applications: A review

Effects of alternating feeding regimes with varying dietary phosphorus levels on growth, mineralization, phosphorus retention and loading of large rainbow trout (Oncorhynchus mykiss)

Microalgal Biotechnology: Prospects and Applications

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