Roots blower AT-50S

The blower impeller adopts the original curve track and the optimized design to improve the full-adiabatic efficiency as well as the volumetric efficiency, which makes the capacity and pressure superior.

The screen lines adopt the helical construction which used the method of casing at the suction and discharge sides to be cut to a helical shape. The triangle suction and discharge port formed by a straight line of the rotor top is opened and closed gradually which makes the operation more balanced and the liberation and noise limited.

Whether you are producing shrimp or fish, anywhere you are using aeration systems to oxygenate your water, you can benefit from the efficiency and durability of our Roots blower AT-50S. Oxygen improves the growing of tilapia by supplying oxygen needs on a 24/7 basis because the oxygen supports the aerobic digestion of all foods whenever the tilapia needs or wants to eat.

Specifications

Accessories of Roots blower AT-50S

Problems

You can see that in 2010-2011 there were many more problems with bacterial diseases than before. In the past, bacterial infection was seldom a problem with Pacific White Shrimp culture. This indicates that there is something wrong or something lacking with the aquaculture management practices used at present. Usually it is a problem with overfeeding. Excess feed causes a build up of waste materials in the pond, which encourages the growth of disease-causing Vibrio bacteria. When the oxygen or DO level in the pond drops over the course of the culture period, the shrimp are likely to get sick.

The most appropriate DO for shrimp health and normal growth is from no less than 4 mg/L (ppm) up to the saturation point. The amount of oxygen that can remain dissolved in the water depends on the water temperature. When the temperature is higher, the water can hold less oxygen. For shrimp culture it is best to maintain the DO at 6-8 mg/L, or no less than 4 mg/l all the time. In reality, on most farms the DO only stays this high during the first month or two of the culture period. On some farms, once the shrimp are 30 days old the night time DO, from about midnight to early morning before dawn, goes down to less than 3 ppm. This situation is found on extensive culture farms with no aerators and on semi-intensive culture farms or sometimes on intensive farms or sometimes on intensive farms.