In fact, copper is an essential element in the human body, but it is also a double-edged sword. Once the human body has a copper deficiency, there may be symptoms such as anemia and abnormal hair. However, if the copper content is too much, cirrhosis of the liver, diarrhea, vomiting and other phenomena can occur. Copper can enter the human body through food, water and other ways. It can be seen that the quality of the water body is very important, and the polluted water must not be used directly.
The Following Water Quality Online Monitoring Instrument Manufacturers Will Understand the Pollution of Copper to Water Bodies With You in the Future.
Copper compounds exist in a single or bivalent state, and the copper content dissolved in natural water decreases with the increase of PH value, when the pH is 6 to 8, the solubility is 50 to 500mg/l. The adsorption of copper by solid substances in water can reduce the dissolved copper, and the presence of some complex ligands can increase the dissolved copper.
In metal processing, industrial wastewater and other places contain copper, of which the wastewater discharged by metal processing and electroplating engineering has a high copper content, and the wastewater contains dozens to hundreds of milligrams of copper per liter. The discharge of this kind of waste water will affect the quality of the water and pollute the water source for sure. When the copper content in water reaches 0.01mg/L, it has obvious inhibition on water self-purification, but if it exceeds 3.0mg/L, it will cause poor growth of crops, especially rice and barley, and pollute grain grains. The critical concentration of copper sulfate to rice in irrigation water was 0.6 mg/l. Copper is very toxic to aquatic organisms, some people believe that the concentration of copper toxicity to fish begins at 0.002 mg/l, but it is generally believed that water containing copper 0.01 mg/l is safe for fish. Acute poisoning of aquatic organisms caused by copper pollution has occurred in some small rivers. In coastal and harbor areas, there have been incidents of copper pollution causing oyster meat to turn green.
At this time, online monitoring of water quality plays a great role. Water quality online monitoring equipment is installed in the wastewater discharge outlets of major factories to monitor the change of water quality in real time. The T8000-Cu total copper online analyzer produced by Hangzhou Modi is used to monitor the content of copper in water. Using optical colorimetry, the pre-treated water sample was injected into the reaction tank by the injection pump and first reacted with strong acidic reagents to oxidize all forms of copper in the water sample to bivalent copper ions, and then added reducing reagents to reduce bivalent copper ions to cuprous ions, and then added masking agent to eliminate the interference of coexisting ions in the water sample. Then add the characteristic color developer for color reaction, in the measuring range, the degree of color change is proportional to the concentration of copper in the water, by measuring the degree of color change, you can calculate the content of copper in the water sample.
