Waster water solution from ECOWATER AQUA

Whether it's municipal sewage, whether it's industrial water, whether it's some aquaculture wastewater Water contains a lot of ammonia, nitrite, and other substances. Ammonia nitrogen has the greatest influence on the water quality index. Because in the water there are a lot of proteins and other substances, these proteins are under the action of bacteria. It's converted to ammonia and nitrite. Ammonia, nitrogen, and nitrite are substances that can be dissolved in water, and it is difficult to filter them out thoroughly with ordinary filtration equipment. What do we do with these soluble substances? This involves the treatment of wastewater. Today we are going to focus on how to treat wastewater in aquaculture.
 

In aquaculture, we feed large quantities of fish and shrimp into the ponds every day. These feeds contain a lot of protein. Proteins are first broken down into small molecules of amino acids by environmental microbes. The amino acids are then broken down into soluble ammonia. Ammonia nitrogen is produced by the action of nitrifying bacteria. Further decomposition will turn it into nitrates. in the process. It requires the collaboration of biological bacteria and dissolved oxygen. Therefore, the process is a depleting one. Both ammonia nitrogen and nitrite are soluble substances with considerable toxicity to fish and shrimp. when nitrite is too high. It will seriously affect the absorption of dissolved oxygen by fish and shrimp in water and then cause the fish and shrimp to die of hypoxia poisoning. Therefore, the fishery water quality standards clearly define certain standards for ammonia, nitrogen, and subsalt in aquaculture water. In general. We believe that the content of ammonia nitrogen in aquaculture water should not exceed 0.2 mg per liter. The content of nitrite should not exceed 0.02 mg per liter. It's a relatively safe concentration. But the feed is constant, and the fish and shrimp are growing every day. As a result, proteins and other nitrogenous substances accumulate in the water. Therefore, ammonia, nitrite, and nitrate are separated from the water in a certain way. It is a very important task for aquaculture, especially factory aquaculture.

 

Ammonia, nitrogen, and nitrite are soluble substances. Therefore, they cannot be separated from the water by conventional filtration methods. Here are some ways to remove ammonia from the water.

1. Biological filtration



Generally applicable to industrial aquaculture water bodies, industrial aquaculture is a relatively environmentally friendly aquaculture model. Aquaculture wastewater discharge is small; water after filtration, oxygenation, biochemical treatment, and other links returns to the aquaculture tank for reuse; unit breeding density is high; and the water relative index is constant. The density of the culture is high, and it is sensitive to the concentrations of ammonia, nitrogen, and nitrate. Therefore, in this case, we recommend the use of a recirculating aquaculture system for water treatment. Biological filtration is one of the most commonly used methods to remove ammonia-nitrogen wastewater in industrial aquaculture.

 

2. Ozonation
       

Ozone is a highly oxidizing substance. Its oxidation capacity is 600 times greater than that of chlorine gas. Because it has one oxygen atom in its free state, it is very active and easily reacts with some substances, which is what we call the REDOX reaction. in the process of recirculating aquaculture. Early procedures remove most organic matter from the water. Dissolved ammonia and nitrite can be oxidized by ozone, quickly turning them into nitrates. thus reducing the toxicity of the entire body of water.