IPDB › China Industry › Metallurgy, Mineral & Energy › Alloy
Cadmium Metal CD Alloy Cadmium Block Cadmium Ingot1
Rare Metal Alloy, Cadmium Metal, CD Alloy
Wuxi Taixie Metal Material Co., Ltd.
Preview:
Product Description Cadmium is a kind of metal element, the element symbol is Cd, English name: Cadmium, atomic number is 48, density of 8.65g/cm3. Cadmium is silver-white, slightly bluish luster, soft wear resistant, ductile and malleable, flammable and irritating. The melting point is 320.9oC and the boiling point is between 765 oC and 767oC. It is a rare element in nature, and its content is about 0.1~0.2mg/kg in the earth's crust. Cadmium occurs in zinc ore. Cadmium oxidizes and tarnishes slowly in moist air. When heated, a brown oxide layer is formed. Cadmium vapor burns to produce brown smoke. Cadmium reacts with sulfuric, hydrochloric, and nitric acids to produce cadmium salts. Cadmium has good corrosion resistance to brine and lye. Cadmium can be used in nickel-cadmium batteries, plastics and metal plating, car tires, some light-emitting electronic components and nuclear reactor components. Cadmium oxide is brown, sulfide is bright yellow, is a hard to dissolve pigment, commonly used in the production of pigments, paints, dyes, printing ink and other yellow pigments. Cadmium can cause great harm to human body and environment, so attention should be paid to prevention.Cadmium application distribution The main application of cadmium is in the battery industry, where it is used in niccd batteries, which are increasingly being replaced by lithium-ion batteries in laptops and mobile phones. Cadmium's toxicity has led to legislation banning it, particularly in the European Union. Currently, nearly 86 percent of the world's cadmium is used to make nickel-cadmium batteries, 9 percent to make pigments, 4 percent to make paints, and 1 percent to make alloys, solar panels and stabilizers. In terms of consumption: In terms of countries, cadmium consumption in China, Belgium and Japan accounts for 77% of the global total, followed by China (33%), Belgium (32%) and Japan (12%). In terms of downstream applications, cadmium-nickel cells account for the majority of global consumption, with the remainder distributed as follows, in decreasing order of consumption: pigments, coatings and electroplating, plastics, non-ferrous alloys, and other specialized uses (including photovoltaic equipment). Small portable nickel-cadmium batteries account for 80% of cadmium consumption in nickel-cadmium batteries, which are mainly used in consumer electronics. Industrial nickel-cadmium batteries account for the remaining 20 percent, mainly in the aviation and rail industries: in aviation, nickel-cadmium batteries provide starting power for engines and can be used as backup power for aircraft circuitry; In railway systems, nickel-cadmium batteries are used to start locomotive engines and provide power for passenger cars and track signals. Nickel-cadmium batteries are popular in mid-range consumer electronics and appliances because of their cost advantages over other chemical batteries. The average price of nickel-cadmium batteries in 2012 was around $1.20, nearly 62% cheaper than lithium-ion batteries and 77% cheaper than nickel-metal-cyanide batteries. In the past few years, lithium-ion batteries have been replacing nickel-cadmium batteries in some low-end electronics as their cost has fallen and their storage capacity has increased. Nickel-cadmium batteries are technically more stable and reliable than other rechargeable batteries, so nickel-cadmium batteries continue to be used in some industrial applications. Nickel-cadmium batteries power electric cars and are used in many hybrids. Nickel-cadmium batteries are also being used as buffer storage for electric hybrid systems in remote and underdeveloped areas. The hybrid system is transportable and renewable. Industrial-scale nickel-cadmium batteries also have the potential to store energy for grid-connected solar or wind devices. It stores excess power during periods of low demand and can deploy it for peak use. The stability and reliability of nickel-cadmium batteries also enable them to be used in harsh offshore environments. Advantages and disadvantages of nickel-cadmium batteries The nickel-cadmium battery industry is almost entirely concentrated in Asia, with important producers including: BYD Co. LTD. (China); Panasonic (Japan); Sanyo Electric (Japan). pigment The inorganic golden cadmium sulfide is mainly used as pigment. In pigment applications, cadmium pigments are substitutes for zinc and and cadmium sulfide, which ranges from golden yellow to purplish red, is substitutes for selenium. Cadmium pigment has the characteristics of light resistance, sun fast, excellent weather resistance, high temperature resistance, strong hiding power, strong coloring power, no migration, no color penetration and so on. It is widely used in plastics, coatings, color master, rubber, leather, intaglio printing ink, fine art pigment, high-grade lacquer, enamel, ceramics, glass, colored sand and other building materials and electronic industry. In terms of polymer coloring, it can be used for almost all resins and plastics. But it is mainly used for the coloring of engineering plastics, which are processed at high temperatures, whereas cadmium pigments can withstand rising temperatures without mutating. Coatings and electroplating Cadmium coatings play an important role in aviation and military applications. Safety concerns are likely to arise if paints are replaced in these applications. Cadmium is commonly used in the plating of firmware on aircraft landing racks, and because it has properties not found in other anticorruption paints, it is also used in the manufacture of parachutes. directory Cadmium introduce discover resources preparation application recycle healthy standard Famous enterprise recommend Basic introduction Cadmium discovery and industry development Distribution of cadmium resources and mineral production Preparation of cadmium Use and application of cadmium Nickel-cadmium battery recovery Effects of cadmium on human health and environment Cadmium industry standard Well-known enterprises and associations in the cadmium industry Cadmium industry important news inventory Expand knowledge Calcium was widely used in building life before scientists discovered it Battery industry is an important consumption industry of lead, among which automobile batteries account for 80% of the total battery The ceramic and glass industries are the most important industries for the use of strontium terminals China is one of the countries that discovered and used antimony earlier in the world Xiaobian recommendation 1 Lead is a kind of toxic heavy metal which does great harm to human body 2. Why do no actual "calcium minerals" exist in nature? 3 Titanium alloys for important uses such as aviation need to be melted three times Gallium occurs mainly in bauxite 5. Introduction of manganese ore species Vacuum carbon reduction is an important method to produce niobium metal Share with: Extended reading Zinc is second only to copper and aluminum in non-ferrous metal consumption Lithium is widely used in batteries, ceramics, glass, lubricants, refrigerating liquids, the nuclear industry and the photoelectric industry Tellurium is mainly used in the metallurgical industry as an alloying element in the nonferrous industry and in cast iron and steel 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 hydrogen 2 helium 3 lithium 4 beryllium 5 boron 6 carbon 7 nitrogen 8 oxygen 9 fluorine 10 neon 11 sodium 12 magnesium 13 aluminum 14 silicon 15 phosphorus 16 sulfur 17 chlorine 18 argon 19 potassium 20 calcium 21 scandium 22 titanium 23 vanadium 24 chromium 25 manganese 26 iron 27 cobalt 28 nickel 29 copper 30 zinc 31 gallium 32 germanium 33 34 selenium 35 bromine 36 krypton 37 Rb. 38 strontium 39 yttrium 40 zirconium 41 niobium 42 molybdenum 43 technetium 44 ruthenium 45 rhodium 46 palladium 47 silver 48 cadmium 49 indium 50 tin 51 antimony 52 tellurium 53 iodine 54 xenon 55 cesium 56 barium 57 lanthanum 58 cerium 59 praseodymium 60 nd 61 promethium 62 samarium 63 europium 64 gadolinium 65 terbium 66 dysprosium 67 holmium 68 erbium 69 thulium 70 ytterbium 71 lutetium 72 hafnium 73 tantalum 74 tungsten 75 rhenium 76 osmium 77 iridium 78 platinum 79 gold 80 81 thallium 82 lead 83 bismuth 84 polonium 85 astatine 86 radon 87 Eka cesium 88 radium 89 actinium 90 thorium 91 magnesium 92 uranium 93 neptunium 94 plutonium 95 americium 96 curium 97 berkelium 98 californium 99 were 100 fermium 101 mendelevium 102 nobelium 103 lawrencium 104 she 105 Db 106 Sg 107 Bh 108 Hs 109 Mt 110 e 111 element 112 Cn 113 Uut 114 Fl 115 Uup 116 Lv 117 Uus 118 UuoWhat harm does excessive intake of cadmium bring to human body? Cadmium is not an essential element for human body, and it is an environmental pollutant. Under normal circumstances, excessive intake of cadmium can lead to cadmium poisoning. The World Health Organization lists cadmium as a priority food pollutant; The International Agency for Research on Cancer (IARC) classifies cadmium as a human carcinogen, which can cause serious health damage to humans. The United States Bureau for Poison and Disease Registry (ATSDR) lists cadmium as the seventh hazardous substance to human health; China has also listed cadmium as one of the key monitoring indicators for total emission control. 1. Acute poisoning Cadmium is a toxic element and its compounds are even more toxic. It was a chemical compound that didn't interact with human life, but the Industrial revolution unleashed the devil. Foreign research estimates that 22,000 tons of cadmium enter the soil every year. In nature, cadmium compounds have different toxicity. The toxicity of cadmium sulfide and cadmium selenosulfonic acid is lower, while the toxicity of cadmium oxide, cadmium chloride and cadmium sulfate is higher. Cadmium poisoning in humans averages 100mg. The main symptoms of acute poisoning are nausea, salivation, vomiting, abdominal pain, diarrhea, and then lead to the symptoms of central nervous poisoning. Severe cases may result in death due to collapse. 2. Subchronic and chronic toxicity When the environment is polluted by cadmium, cadmium can be enriched in the biological body, through the food chain into the human body to cause chronic poisoning. The biological half-life of cadmium is 10~30 years, and the bioenrichment effect is significant. Even if the contact is stopped, most of the accumulated cadmium will continue to stay in the human body. Long-term ingestion of cadmium-containing food can cause chronic kidney poisoning, mainly damage renal tubules and glomeruli, resulting in albuminuria, amino acid urine and glycosuria. At the same time, cadmium ion replaces calcium ion in bone, thus hindering the normal deposition of calcium on bone, and also hindering the normal solidification and maturation of bone collagen, leading to rickets disease. In March 2013, Nanfang Daily reported the news that cadmium-contaminated rice from Hunan had entered the Guangdong market under the headline "Problematic Rice from Hunan is Flowing to Guangdong Tables". All of a sudden, "cadmium rice" has entered the attention of the media and the public, and the wide distribution of "cadmium rice" has made people pay attention to the serious problem of heavy metal pollution. So what are the effects of cadmium on the human body? Distribution of cadmium rice in China In April 2014, according to the news released on the Greenpeace website: the environmental organization Greenpeace released the latest report "Colored" rice -- Investigation of heavy metal pollution of rice in Hengdong County, Hunan Province ", which said that the rice, rice soil and surface water around Hengdong Industrial Park (Dapu piece) in Hengyang City, Hunan Province exceeded the standard of heavy metals. Twelve of the 13 rice samples tested showed excessive levels of cadmium and various levels of lead, and other heavy metals, with the highest level of cadmium nearly 21 times higher than the national standard. Through the comprehensive analysis of many factors, the non-ferrous metal enterprises in the industrial park is an important source of local heavy metal pollution. With the occurrence of cadmium pollution incidents, the public attention to the harm of cadmium is increasing. Here are a few common questions about it: What is the limit of cadmium in rice? China's Limit of Pollutants in Food (GB2762-2012) sets the limit of cadmium in rice at 0.2mg/kg, which is consistent with the standard of the European Union, which hopes to further raise the standard to 0.1mg/kg. Japan and the International Codex Alimentarius Commission (CAC) stipulate that the limit of cadmium in rice is 0.4mg/kg. Because there is no evidence that cadmium in food causes health problems in the United States, there are no U.S. standards. How is cadmium rice produced? How does cadmium pollute the environment and food? Cadmium in the environment mainly comes from the earth's crust and industrial pollution. Cadmium in plant food mainly comes from metallurgy, smelting, ceramics, electroplating industry and chemical industry (such as batteries, plastic additives, food preservatives, pesticides, pigments) and other "three wastes". Cadmium is usually discharged into the environment through waste water and gas; industrial waste gas containing cadmium diffuses and settles naturally, and accumulates in the soil around factories; mineral processing wastewater from lead and zinc mines and wastewater from related industries (electroplating, alkaline batteries) is discharged into surface water or seeps into groundwater, polluting water sources and soil; and then contaminates crops through irrigation and planting. Studies by experts of the United States Department of Agriculture show that rice is the most cadmium absorbing bulk cereal crop, and its cadmium level in grain is second only to lettuce. Cadmium in animal food is also mainly from the natural environment, under normal circumstances, the content of cadmium is relatively low. But cadmium has obvious tendency to bioaccumulate in animals in polluted environment. In 2014, the Ministry of Environmental Protection and the Ministry of Land and Resources released a national soil pollution survey communique, noting that the rate of cadmium pollutants exceeding the standard reached 7.0 percent, several times that of other pollutants. Could cadmium pollution have caused the "Itatake disease" disaster that occurred in Japan in the 20th century? There is no need to worry too much about the widespread "pain pain disease" known as "pain pain in the joints and spine". Cadmium (Cd) is the most serious heavy metal to rice pollution. In the 1960s, a strange disease appeared in Toyama Prefecture, Japan. Most of the patients were menopausal women, and it was confined to the irrigated areas of the Shitongchuan River basin. The disease did not occur when locals moved to other places. Clinical manifestations of the first waist pain, back pain, knee pain, later throughout the whole body. Pain activity aggravates, more pathological fracture occurs, thereby causing shortening of the body, serious bone deformity, serious, some slight activity or cough can cause fracture, heavy long-term bed, day and night cry pain, so the name "pain pain disease". At first, the cause of the disease was unknown, but a large number of epidemiological investigations and experimental studies confirmed that "Tongtong disease" was caused by chronic cadmium poisoning. Tongtong disease has been identified as one of the four major public hazards in Japan. But only patients who have had proximal tubular dysfunction for many years develop pain pain disease, and in a small proportion. In Japan, an average of 300 out of every 100, 000 chronically heavy cadmium users develop the condition. If the problem of cadmium in rice was better managed, no one would suffer from "pain pain disease" due to cadmium ingestion. Besides cadmium-containing food, which is the main source of poisoning, what other products can cause cadmium poisoning? In daily life, cadmium may also appear in jewelry. In the process of recycling or wearing jewelry containing cadmium, the cadmium will penetrate into the environment and human body, accumulate and enrich in nature, especially in water, soil and human body, thus disturbing the ecosystem and becoming a health obstacle to human beings, and ultimately directly threatening the safety and survival of human life. The quality watchdog warned dealers and consumers to be careful about buying metal accessories, especially metal hair accessories. In addition, parents who regularly wear accessories for their children should also be aware that a large number of children's accessories have been found to contain high levels of the toxic metal cadmium, according to a US study. Children chewing cadmium-containing jewelry can be toxic, affecting kidney function and brain development, according to a report in Environmental Health Perspectives, a journal of the U.S. Department of Health and Human Services. Children are getting more than just toys when they unwrap presents. Among those cute gifts lurk heavy metals that can cause brain damage. After Congress banned lead in children's toys in 2008, cadmium, often found in batteries, started making its way into children's accessories. Many children put accessories in their mouths, increasing the risk of heavy metal poisoning, the report said. According to the U.S. Consumer Product Safety Commission (CPSC), children's jewelry contains 18 micrograms of soluble cadmium. However, among the 34 pieces tested, eight pieces contained more than 18 micrograms of cadmium, and one piece contained 2,109 micrograms of cadmium, more than 100 times higher. How to prevent cadmium food poisoning? A person's daily allowance for cadmium is his body weight in kilograms multiplied by 5/6 micrograms. On the whole, the average dietary cadmium intake of Chinese residents is still within the safe range. But in heavily polluted areas such as Guangdong and Hunan, per capita cadmium intake is above the standard. Try to reduce consumption of shellfish, seafood and offal of livestock and poultry with high cadmium content. Do not smoke or smoke less. Prevention and control of environmental pollution caused by cadmium Cadmium is one of the major environmental pollutants. Once the environment is polluted by cadmium, it is difficult to eliminate it. Therefore, we should adhere to environmental monitoring and strictly control the discharge of "three wastes", strengthen the treatment of industrial cadmium and three wastes, and rationally mine and smelt. Soil improvement measures can be taken for cadmium-contaminated soil, such as adding lime to the soil to improve soil pH value. Use phosphate fertilizers to precipitate cadmium phosphate, thus reducing the absorption of cadmium by plants. Activated carbon, montmorillonite, kaolin, bentonite, weathering media, sulfonated coal, high temperature slag, zeolite, chitosan, carboxymethyl chitosan, diatomite, improved fiber, eggshell, activated alumina humus, nanomaterials and other adsorbents because of its large surface area, complex structure and some other properties, can have a good adsorption effect on soil and water cadmium. When animals are fed diets with high cadmium content, elements such as zinc, iron, copper, calcium, selenium and vitamin C which have antagonistic effect on cadmium can be added to reduce the toxicity of cadmium to animals.What harm does excessive intake of cadmium bring to human body? Cadmium is not an essential element for human body, and it is an environmental pollutant. Under normal circumstances, excessive intake of cadmium can lead to cadmium poisoning. The World Health Organization lists cadmium as a priority food pollutant; The International Agency for Research on Cancer (IARC) classifies cadmium as a human carcinogen, which can cause serious health damage to humans. The United States Bureau for Poison and Disease Registry (ATSDR) lists cadmium as the seventh hazardous substance to human health; China has also listed cadmium as one of the key monitoring indicators for total emission control. 1. Acute poisoning Cadmium is a toxic element and its compounds are even more toxic. It was a chemical compound that didn't interact with human life, but the Industrial revolution unleashed the devil. Foreign research estimates that 22,000 tons of cadmium enter the soil every year. In nature, cadmium compounds have different toxicity. The toxicity of cadmium sulfide and cadmium selenosulfonic acid is lower, while the toxicity of cadmium oxide, cadmium chloride and cadmium sulfate is higher. Cadmium poisoning in humans averages 100mg. The main symptoms of acute poisoning are nausea, salivation, vomiting, abdominal pain, diarrhea, and then lead to the symptoms of central nervous poisoning. Severe cases may result in death due to collapse. 2. Subchronic and chronic toxicity When the environment is polluted by cadmium, cadmium can be enriched in the biological body, through the food chain into the human body to cause chronic poisoning. The biological half-life of cadmium is 10~30 years, and the bioenrichment effect is significant. Even if the contact is stopped, most of the accumulated cadmium will continue to stay in the human body. Long-term ingestion of cadmium-containing food can cause chronic kidney poisoning, mainly damage renal tubules and glomeruli, resulting in albuminuria, amino acid urine and glycosuria. At the same time, cadmium ion replaces calcium ion in bone, thus hindering the normal deposition of calcium on bone, and also hindering the normal solidification and maturation of bone collagen, leading to rickets disease. In March 2013, Nanfang Daily reported the news that cadmium-contaminated rice from Hunan had entered the Guangdong market under the headline "Problematic Rice from Hunan is Flowing to Guangdong Tables". All of a sudden, "cadmium rice" has entered the attention of the media and the public, and the wide distribution of "cadmium rice" has made people pay attention to the serious problem of heavy metal pollution. So what are the effects of cadmium on the human body? Distribution of cadmium rice in China In April 2014, according to the news released on the Greenpeace website: the environmental organization Greenpeace released the latest report "Colored" rice -- Investigation of heavy metal pollution of rice in Hengdong County, Hunan Province ", which said that the rice, rice soil and surface water around Hengdong Industrial Park (Dapu piece) in Hengyang City, Hunan Province exceeded the standard of heavy metals. Twelve of the 13 rice samples tested showed excessive levels of cadmium and various levels of lead, and other heavy metals, with the highest level of cadmium nearly 21 times higher than the national standard. Through the comprehensive analysis of many factors, the non-ferrous metal enterprises in the industrial park is an important source of local heavy metal pollution. With the occurrence of cadmium pollution incidents, the public attention to the harm of cadmium is increasing. Here are a few common questions about it: What is the limit of cadmium in rice? China's Limit of Pollutants in Food (GB2762-2012) sets the limit of cadmium in rice at 0.2mg/kg, which is consistent with the standard of the European Union, which hopes to further raise the standard to 0.1mg/kg. Japan and the International Codex Alimentarius Commission (CAC) stipulate that the limit of cadmium in rice is 0.4mg/kg. Because there is no evidence that cadmium in food causes health problems in the United States, there are no U.S. standards. How is cadmium rice produced? How does cadmium pollute the environment and food? Cadmium in the environment mainly comes from the earth's crust and industrial pollution. Cadmium in plant food mainly comes from metallurgy, smelting, ceramics, electroplating industry and chemical industry (such as batteries, plastic additives, food preservatives, pesticides, pigments) and other "three wastes". Cadmium is usually discharged into the environment through waste water and gas; industrial waste gas containing cadmium diffuses and settles naturally, and accumulates in the soil around factories; mineral processing wastewater from lead and zinc mines and wastewater from related industries (electroplating, alkaline batteries) is discharged into surface water or seeps into groundwater, polluting water sources and soil; and then contaminates crops through irrigation and planting. Studies by experts of the United States Department of Agriculture show that rice is the most cadmium absorbing bulk cereal crop, and its cadmium level in grain is second only to lettuce. Cadmium in animal food is also mainly from the natural environment, under normal circumstances, the content of cadmium is relatively low. But cadmium has obvious tendency to bioaccumulate in animals in polluted environment. In 2014, the Ministry of Environmental Protection and the Ministry of Land and Resources released a national soil pollution survey communique, noting that the rate of cadmium pollutants exceeding the standard reached 7.0 percent, several times that of other pollutants. Could cadmium pollution have caused the "Itatake disease" disaster that occurred in Japan in the 20th century? There is no need to worry too much about the widespread "pain pain disease" known as "pain pain in the joints and spine". Cadmium (Cd) is the most serious heavy metal to rice pollution. In the 1960s, a strange disease appeared in Toyama Prefecture, Japan. Most of the patients were menopausal women, and it was confined to the irrigated areas of the Shitongchuan River basin. The disease did not occur when locals moved to other places. Clinical manifestations of the first waist pain, back pain, knee pain, later throughout the whole body. Pain activity aggravates, more pathological fracture occurs, thereby causing shortening of the body, serious bone deformity, serious, some slight activity or cough can cause fracture, heavy long-term bed, day and night cry pain, so the name "pain pain disease". At first, the cause of the disease was unknown, but a large number of epidemiological investigations and experimental studies confirmed that "Tongtong disease" was caused by chronic cadmium poisoning. Tongtong disease has been identified as one of the four major public hazards in Japan. But only patients who have had proximal tubular dysfunction for many years develop pain pain disease, and in a small proportion. In Japan, an average of 300 out of every 100, 000 chronically heavy cadmium users develop the condition. If the problem of cadmium in rice was better managed, no one would suffer from "pain pain disease" due to cadmium ingestion. Besides cadmium-containing food, which is the main source of poisoning, what other products can cause cadmium poisoning? In daily life, cadmium may also appear in jewelry. In the process of recycling or wearing jewelry containing cadmium, the cadmium will penetrate into the environment and human body, accumulate and enrich in nature, especially in water, soil and human body, thus disturbing the ecosystem and becoming a health obstacle to human beings, and ultimately directly threatening the safety and survival of human life. The quality watchdog warned dealers and consumers to be careful about buying metal accessories, especially metal hair accessories. In addition, parents who regularly wear accessories for their children should also be aware that a large number of children's accessories have been found to contain high levels of the toxic metal cadmium, according to a US study. Children chewing cadmium-containing jewelry can be toxic, affecting kidney function and brain development, according to a report in Environmental Health Perspectives, a journal of the U.S. Department of Health and Human Services. Children are getting more than just toys when they unwrap presents. Among those cute gifts lurk heavy metals that can cause brain damage. After Congress banned lead in children's toys in 2008, cadmium, often found in batteries, started making its way into children's accessories. Many children put accessories in their mouths, increasing the risk of heavy metal poisoning, the report said. According to the U.S. Consumer Product Safety Commission (CPSC), children's jewelry contains 18 micrograms of soluble cadmium. However, among the 34 pieces tested, eight pieces contained more than 18 micrograms of cadmium, and one piece contained 2,109 micrograms of cadmium, more than 100 times higher. How to prevent cadmium food poisoning? A person's daily allowance for cadmium is his body weight in kilograms multiplied by 5/6 micrograms. On the whole, the average dietary cadmium intake of Chinese residents is still within the safe range. But in heavily polluted areas such as Guangdong and Hunan, per capita cadmium intake is above the standard. Try to reduce consumption of shellfish, seafood and offal of livestock and poultry with high cadmium content. Do not smoke or smoke less. Prevention and control of environmental pollution caused by cadmium Cadmium is one of the major environmental pollutants. Once the environment is polluted by cadmium, it is difficult to eliminate it. Therefore, we should adhere to environmental monitoring and strictly control the discharge of "three wastes", strengthen the treatment of industrial cadmium and three wastes, and rationally mine and smelt. Soil improvement measures can be taken for cadmium-contaminated soil, such as adding lime to the soil to improve soil pH value. Use phosphate fertilizers to precipitate cadmium phosphate, thus reducing the absorption of cadmium by plants. Activated carbon, montmorillonite, kaolin, bentonite, weathering media, sulfonated coal, high temperature slag, zeolite, chitosan, carboxymethyl chitosan, diatomite, improved fiber, eggshell, activated alumina humus, nanomaterials and other adsorbents because of its large surface area, complex structure and some other properties, can have a good adsorption effect on soil and water cadmium. When animals are fed diets with high cadmium content, elements such as zinc, iron, copper, calcium, selenium and vitamin C which have antagonistic effect on cadmium can be added to reduce the toxicity of cadmium to animals.
Purchasing Agent
Note: Send your message to supplier or manufacturer.
Welcome to our Professional and comprehensive procurement services...
Message:
OK ! We suggest you detail your product requirements and company information here.
Enter between 20 to 4,000 characters.
Your inquiry content must be between 20 to 4000 characters.