According to experts, a button battery can pollute 600,000 liters of water; a No. 1 battery rots in the ground, which can make a square meter of land useless. Experts pointed out that if used batteries are mixed with household waste, after the batteries rot, the dissolution of heavy metals such as mercury, cadmium, lead and nickel will pollute the water and soil, and ultimately endanger human health through the food chain. If people are poisoned by mercury, they will suffer from central nervous system diseases with a mortality rate of up to 40%; cadmium is classified as a IA-class carcinogen.
There are three types of batteries in the five substances that pose the greatest threat to the natural environment: mercury, lead, and cadmium.
Mercury: It is commonly known as "mercury" and has carcinogens. Both mercury and mercury are toxic. Scientists have found that mercury has significant neurotoxicity, and it also has adverse effects on the endocrine system, immune system, etc., and children are more vulnerable.
Cadmium: It is easy to cause chronic poisoning in the human body. It is a very toxic heavy metal. The main symptoms are emphysema, osteomalacia, anemia, and it is likely to cause paralysis. When lead enters the human body, it is the most difficult to excrete. It interferes with kidney function and reproductive function. Japan’s “pain and pain†that shocked the world was caused by cadmium pollution. The cadmium-containing mine wastewater pollutes the soil, food, and pasture on both sides of the river and the river, and slowly accumulates through the food chain into the human body, in the kidneys and bones. Will replace the calcium in the bone, so that the bones are severely softened, bones broken; cadmium can cause gastric dysfunction, interfere with the body and the body's zinc enzyme system, so that the zinc-cadmium ratio is reduced, leading to increased hypertension. Cadmium toxicity is potential. Even if the cadmium concentration in drinking water is as low as 0.1 mg/L, it can accumulate in human tissues (especially women), and the incubation period can be as long as ten to thirty years, and it is not easy to detect at an early stage. The data show that the biological half-life of cadmium in human body is 20 to 40 years. The toxicity of cadmium to human tissues and organs is multifaceted and treatment is extremely difficult. Therefore, countries have imposed strict regulations on cadmium in the “three wastes†of industrial emissions. Japan also stipulates that rice containing more than 1 mg/kg of cadmium is “cadmium rice†and is forbidden to eat. Since cadmium compounds have different degrees of toxicity, removing cadmium from wastewater by any method can only change the existence of any method to remove it from wastewater, and only change its existence mode and transfer its existence, and can not eliminate its toxicity. Therefore, the treatment of cadmium wastewater should be combined with recycling as much as possible.
Nickel: It is carcinogenic and has obvious harm to aquatic organisms. Nickel salt can cause allergic dermatitis;
Lead: causes anemia, neurological dysfunction, kidney damage, and is more harmful to children.
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KF, ISO Vacuum Compressible Bellows Specification:
â–ª Standard: KF, ISO
â–ª Material: Stainless Steel 304 (1.4301), Stainless Steel 316L(1.4404), etc
â–ª Sealing Material: rubber/ elastomeric o-ring mounted in a centering ring
â–ª Size Range: KF16-KF50, ISO63-ISO500
▪ Temp.:between ~0° C and 120-180° C
â–ª Pressure: from atmosphere to ~10-8 Torr or mbar.
Quality & Inspection:
â–ª PMI test to verify material grade
â–ª Dimension controlling during fabricating and finished
â–ª Visual and surface 100% examination before shipment
â–ª Packed in carton box firstly, then in wooden case
Vacuum Flexible Bellows
Vacuum Flexible Bellows,KF Vacuum Flexible Bellows,ISO Vacuum Flexible Hoses,Vacuum Compressible Bellows
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