The main reasons why Guigang rotary kiln lime is used to kill fish ponds in Guangdong coastal aquaculture farms are as follows:

In terms of quality and effectiveness

High purity: The lime produced by Guigang rotary kiln usually has a calcium oxide content of over 90%. High purity lime can undergo chemical reactions more fully when it comes into contact with water, releasing a large amount of heat and rapidly increasing the pH value of the water, thereby more effectively killing pathogens such as bacteria, viruses, parasites, as well as harmful organisms such as wild fish and frog eggs in fish ponds.

Adequate response: The production process of the rotary kiln ensures uniform lime firing and good reactivity. When it is used for disinfection and sterilization fish ponds, it can quickly and fully react with water to generate strong alkaline calcium hydroxide, which can make the water body and bottom mud of fish ponds reach a high alkaline environment in a short time and enhance the disinfection and sterilization effect.  

Cost and transportation aspects

Cost effectiveness: Lime production in Guigang area has a certain scale effect and relatively low production costs. For Guangdong coastal aquaculture farms, on the premise of ensuring the disinfection and sterilization effect, the use of Guigang rotary kiln lime can reduce the breeding cost and improve economic benefits.

Convenient transportation: Guigang has a superior geographical location and convenient transportation. It is relatively close to the coastal areas of Guangdong and has convenient road and waterway transportation networks. This makes the transportation cost of lime relatively low, allowing for timely supply to aquaculture farms and ensuring production continuity.

Improvement of water quality and sediment

Adjusting water quality: The calcium ions in the lime of Guigang rotary kiln can precipitate suspended solids and colloidal substances in the water, making the water clear. At the same time, it can also adjust the hardness and alkalinity of the water, which is conducive to maintaining a suitable water quality environment for aquaculture.

Improving sediment quality: It can react chemically with harmful substances such as organic matter and heavy metals in fish pond sediment, promote the decomposition and mineralization of organic matter in sediment, reduce the accumulation of harmful substances in sediment, improve the sediment environment, and provide good habitat and growth conditions for aquaculture organisms.