1. How to degrade nitrite poisoning in aquaculture?Measures for removing nitrite in aquaculture: (1) Place hydrogen peroxide in an open container, cover the opening of the container with a permeable layer, immerse the container containing hydrogen peroxide in the aquaculture pond and fix it on the aerator in the aquaculture pond; (2) Start the aerator to allow hydrogen peroxide to diffuse slowly through the water flow. During the diffusion process, hydrogen peroxide decomposes into water and oxygen. The decomposed oxygen simultaneously oxidizes nitrite and ammonia nitrogen into nitrate. This method can quickly remove nitrite and ammonia nitrogen in aquaculture, has a long lasting effect, is not easy to rebound, and has no residue after use, and has no adverse effects on the growth of aquaculture animals and phytoplankton. 2. Is sulfuric acid harmful to fish when it is put into the river?Of course there are. For example, corrosive liquids entering the water will cause water pollution and deterioration of water quality. The deterioration of water quality will affect the water source. Fish that drink water with sulfuric acid stains will also suffer certain damage to their body structures. Water pollution will also cause fish to grow and develop unhealthily. Therefore, it is very harmful to fish. I hope to get such suggestions. 3. What harm does malachite green do to fish?Malachite green is alkaline copper sulfate, and the copper ions in it are mainly used to treat viral infections. The mixture of it and lime water (Bordeaux mixture) is applied on ordinary tree trunks and sprayed on grape racks. For fish pond disinfection, it should be left for a while until the copper ions are diluted by running water before adding fish fry. Copper ions are heavy metals and are toxic to fish. Even if the fish do not die, the copper ions in the fish body can cause harm to humans if they are eaten. 4. Is electric fishing really harmful to fish?The gonadal development of fish that have been electrocuted by electric traps will be damaged, and they will basically lose their reproductive ability, which can be said to be "cut off from their offspring". It will also cause devastating damage to snails, shellfish and tadpoles that grow in the water. Especially in this season, when fish are breeding, electrofishing will have a great impact on the reproduction and growth of fish. Moreover, the electrofishing equipment is being upgraded, with an output voltage of thousands of volts), and the range has been expanded to mountain ponds and deep water reservoirs. According to relevant regulations, using electric fields, drugs, or explosions to cause fish and shrimp to become unconscious and die before fishing is considered an extermination and predatory operation, which is expressly prohibited in my country. Illegal electric fishing operations can be fined up to 100,000 yuan. 5. What harm does salt do to the soil?There are also a lot of salts. Do you mean chemical salts or sodium chloride? First of all, salt itself has no chemical or other effects on the soil. But the soil is for growing plants or raising animals, so it is harmful. Secondly, the main harm is to plants. The concentration of the solution in the soil is too high, causing the roots of plants to lose water. Plants cannot absorb water and will slowly wither. If plants do not exist, there will be no organic matter to provide to animals. Naturally, the animals in the soil will leave or die. Moreover, just like people who do not drink seawater, the more they drink, the thirstier they become. Animals cannot find the water necessary for life in salty soil. Otherwise, humans are looking for planets with liquid water when searching for extraterrestrial life. Finally, some anions in salts have a strong oxidizing effect in special environments, which can harm organisms. Some salts contain heavy metal cations, which are not easily excreted from organisms. It is mainly due to the chemical properties of the constituent ions, which can denature biologically active proteins and thus affect organisms. I want to say a few more words. As far as I understand, what you are referring to is soil salinization. In some waters, especially in coastal areas, some special plants have high concentrations of cell sap, which allows them to survive. This is also a way for humans to control soil salinization. 6. Is industrial salt harmful to the land?It can cause the soil to harden and make it difficult for crops to grow. 7. Is salt harmful to trees?High concentrations of salt water can harm trees. 1. If the concentration of salt water is greater than that of the plant itself, the plant cells will lose water. 2. The roots absorb water, causing the salt concentration in the cells to be too high, causing the plant to wither and die. 3. After the trees were watered with high-concentration salt water, the grass and flowers around the trees withered at first, and the soil became moist, and then turned pink and white after drying. After a few days, the leaves began to turn yellow and fall off, which was particularly obvious in the whole row of trees. 4. Low-concentration salt water sterilizes trees and can maintain the mineral balance of plants. Mitigation method: Watering more and applying more organic fertilizers can effectively alleviate the harm of chloride ions in salt water to trees. Trees are tall woody tissue plants, which are presented by "branches", "stems" and "leaves" and can survive for decades. Generally, arbor is called tree, which has a distinct upright trunk. The plant is generally tall, and the branches are higher than the ground, which can form a crown. There are many kinds of trees. There are also colloquial sayings that refer to relatively large shrubs as "trees", such as pomegranate trees and tea trees. Trees are a general term for woody plants, which are divided into trees, shrubs and woody vines. Trees are mainly seed plants. Among ferns, only tree ferns are trees. There are about 8,000 species of trees in China. They are divided into banyan trees; poplars; willows; cypresses, etc. 8. What are the hazards of lead poisoning to the human body?Lead poisoning can cause developmental delay and intellectual impairment in children. The younger the child, the more serious the nerve damage, which can affect the child's growth and development, and even cause sensory impairment. Adults with lead poisoning may experience abdominal pain, diarrhea, headache, insomnia, drowsiness, delirium, coma, black stools, fatigue, anemia, edema, renal failure, joint pain and other symptoms. 9. What harm does alcohol poisoning do to the body?The hazards of alcohol poisoning include: emotional agitation, flushed or pale face, bloodshot eyes, accelerated heart rate, dizziness and headache, cheerfulness and excitement, increased speech, etc. There may also be unsteady gait, clumsy movements, slurred speech, incoherent speech, blurred vision and double vision, nausea and vomiting, confusion, violent behavior, and retrograde amnesia. 10. What are the hazards of nitrite to fish?Nitrite penetrates and is absorbed through the fish's body surface into the blood, where it combines with the oxygen-carrying proteins in the blood, causing them to lose their oxygen-carrying function, thus manifesting as symptoms of hypoxia. Even if the dissolved oxygen in the water is high, the fish will show signs of hypoxia and coma, such as decreased food intake, difficulty breathing, slow swimming, decreased physical strength, damaged and blackened gills, and phenomena such as "floating head", "secret death", and "bottoming out". |
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