Biofloc Definition

Definition and applications of biofloc technology BFT in aquaculture. Biofloc technology BFT is as an environmentally friendly aquaculture technique based on in situ microorganism production.

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In other words biofloc is a symbiotic process that includes confined aquatic animals heterotrophic bacteria and other.

Biofloc definition. Serves as seeding for biofloc formation. Higher productivity per sqm area than other methods. MaB-flocs or M icro a lgal B acterial flocs settle by gravity up to density of 20 g per liter.

Better utilization of land and water. Emission of toxic metabolites. Definition- The Biofloc is a protein rich macro aggregate of organic material and micro-organisms including diatoms bacteria protozoa algae fecal pellets remains of dead organisms and other invertebrates.

In addition continuously water movement in the. Currently MaB-flocs are being applied for sewage treatment on lab and pilot scale in Germany New Zealand and Belgium. Aggregates formed by a complex interaction between particulate organic matter and a large range of microorganisms such as bacteria and phytoplankton and grazers such as rotifers ciliates and flagellates protozoa and copepods.

The sustainable approach of such system is based on growth of microorganism in the culture medium benefited by the minimum or zero water exchange. Biofloc technology is a technique of enhancing water quality through the addition of carbon sources to the aquaculture system contained in the feed or external carbon sources. Biofloc Technology BFT one of the innovative waste management and nutrient retention technologies offers a solution to solve the problems.

In aquaculture ponds Biofloc Technology removes toxic metabolites and through microbial mass protein production. Directly from the water or recovered to become protein meal is very promising. Emerenciano et al 2013 DEFINITION.

The environmental friendly aquaculture system called Biofloc Technology BFT is considered as an efficient alternative system since nutrients could be continuously recycled and reused. Advantages of Biofloc. This can minimize water exchange and water usage in aquaculture systems by maintaining adequate water quality within the culture unit.

Transition foam formation then it get brown. Fish and shrimp are grown in an intensive way minimum of 300 g of biomass per square meter with zero or minimum water exchange. It has traditionally been used in outdoor ponds that contain naturally photoautotrophic algae that provides the water.

Transition is fast with tilapia longer with shrimp Add carbon if TAN is above 2 mgl Adding clay wheat bran etc. Development of biofloc system It may take a few weeks depends on the biomass. BioFlocTechnology BFT is an aquaculture system which forms a biota with limited or zero water exchange under high stocking density using strong aeration.

Biofloc technology BT is defined as the use of aggregates of bacteria algae or protozoa held together in a matrix along with particulate organic matter for the purpose of improving water quality waste treatment and disease prevention in intensive aquaculture systems. Biofloc is a heterogeneous system of aggregate suspended particles along with a variety of microorganisms such as bacteria fungi algae invertebrates and detritus etc. Develop systems providing a reasonable costbenefit ratio to support economics and social sustainability.

Defined as conglomerates diatoms faecal pellets exoskeleton remains of dead organisms protozoa and bacteria. BioFlocTechnology BFT is an aquaculture system which forms a biota with limited or zero water exchange under high stocking density using strong aeration. This is a major improvement for microalgal technology for wastewater treatment.

Biofloc technology BFT is one method with filtration directly from water. Ray et al 2010.

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