[Examples of sources] Untreated urban domestic sewage, papermaking sewage, agricultural sewage, and urban garbage.
[Harm] It consumes dissolved oxygen in water and endangers the survival of fish.
Lead to lack of oxygen in the water, causing the death of microorganisms that need oxygen. These aerobic microorganisms can decompose organic matter and maintain the self-purification ability of rivers and streams. The consequences of their death are: rivers and streams become black, smelly, accumulate toxins, and harm humans and animals.
Heavy metals (mercury, lead, cadmium, nickel, selenium, arsenic, silver, etc.)
[Examples of sources] Mining and smelting processes, industrial wastes, tannery wastewater, textile mill wastewater, household garbage (such as batteries, chemicals).
[Hazard]It has direct physiological toxicity to humans and animals.
Using water containing heavy metals to irrigate crops can cause crops to be contaminated by heavy metals and make agricultural products toxic. It is deposited on the bottom of rivers and bays, enters the food chain through aquatic plants, and enters the human body through aquatic products such as fish.
With the improvement of people’s living standards and awareness of health and environmental protection, household water purifiers have become a household product with a very high usage rate. The water purified by the water purifier filters out harmful substances in the water, such as rust, sediment, heavy metals, Bacteria and heavy metals that are harmful to the human body ensure better health and safety. However, the water purifier also needs regular maintenance, and the filter element of the water purifier needs to be replaced regularly, so as to fully ensure the purification effect of the water purifier. Otherwise, it will become secondary pollution.
Water purifier manufacturers: There are three main types of water purifiers: softening, filtering, and purification.
Softening type filtration: Softening type is to soften the water quality and neutralize the alkalinity of the water. This method uses ion exchange technology, using a microcomputer to control the sodium cation device to replace the calcium and magnesium ions in the water. The calcium and magnesium are the components of the scale. Part, so that the scale can be completely removed. Water softeners are generally very effective in skin care.
Purification filtration: the most comprehensive filtration method. The ultrafiltration membrane adopts the world's advanced carbon burning technology, which combines natural diatom fossils, high-energy biochemical ceramics, and special rare earth materials under high temperature conditions. It integrates purification, mineralization, and Activation, ionization and other functions are integrated, which can quickly change ordinary water into a weak alkaline, anti-oxidant, small molecular group, high oxygen content, and healthy water rich in minerals and trace elements.