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There is a strong focus on improving aeration efficiency in prawn ponds

Update:24-05-2023
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Aerator For Prawn Pond There is a strong focus on impro […]

Aerator For Prawn Pond

There is a strong focus on improving aeration efficiency in prawn ponds. This is important as the aerator is an essential part of the pond infrastructure. It is also beneficial for the overall health of the fish in the pond. Aerators treat hydrogen sulfide and oxygenate the water. As the dissolved oxygen concentration increases, aerobic bacteria are able to thrive and prevent spikes of sludge from forming. The aerator also helps to control phosphorus levels. Dissolved oxygen transfer rates are decreased with salinity and suspended solids concentration.

One of the most common types of aerators used for shrimp ponds is a propeller-aspirator-pump aerator. These aerators use a two-pole motor that rotates at 3,600 rpm. Typically, they are installed on a dike. Other types of mechanical aerators include floating electric aerators and paddlewheel aerators. Mechanical aerators are often powered by diesel engines. They may be mounted side-by-side or diagonally.

Aerators are usually driven by a 7.5 to 16-hp diesel engine. Some farms have aerators that are assembled by the farmer. Others have factory-manufactured aerators. Depending on the type of aerator, the amount of energy required to run it can vary widely.

A survey by the Australian Prawn Farmers Association (APFA) revealed that aerators vary greatly in their performance. The average aerator-to-shrimp yield ratio was 312 kg/hp. The standard deviation was 88 kg/hp. Several farmers reported using half of their aerator capacity during the day and the rest at night. Approximately 40% of this variation was due to mechanical factors.

Wenling Seafull Machinery Co., Ltd has suggested that aerators be monitored on-farm to identify variations in electrical performance. The data obtained will help to develop optimized strategies for aerator fleet management. In addition, it will contribute to the aerator knowledge base.

It has been reported that the energy requirements for aerators can be calculated with equations. However, it is important to note that the amount of electricity needed for aerators is different from the amount of power that is actually applied to the shaft. Moreover, the electricity consumed by the motor is often referred to as wire power. Consequently, the electricity consumed by aerators may be a significant percentage of the total energy used on a farm.

During aeration, the surface area of the water is increased. This reduces the chances of mosquito breeding and also prevents the formation of ice crystals. Additionally, aerators help to reduce sunlight for algae growth. Ultimately, this increases the quality of the water for the shrimp.

Since aerators are very expensive, farmers are encouraged to use aerators that are rated for the amount of electricity they are likely to consume. When aerators are fouled, they will reduce the equipment's energy efficiency and lead to higher electricity costs.

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