This should be judged according to the quality and water quality index of activated carbon you use. Activated carbon used for normal water treatment should be replaced every 1 year. In fact, there is no specific replacement time for activated carbon. Generally speaking, activated carbon can be discarded and replaced with new ones after it loses adsorption saturation. Simple saturation test: put activated carbon into water and you can see a lot of small bubbles in the water. If the number of bubbles is small (compared with the new activated carbon), it means that the saturation is full, and the purified sewage needs to be replaced or regenerated to meet the water quality requirements for discharging a certain water body or recycling. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and other fields, and it has also entered the daily life of ordinary people more and more. In fact, there is no specific replacement time for activated carbon. Simple saturation test: put activated carbon into water and see a lot of small bubbles in the water. The price of coal-based activated carbon is more favorable to wholesale. If there are few bubbles (compared with new activated carbon), it means that the saturation is full and needs to be replaced or regenerated. Judging from the retail price of high-quality coconut shell activated carbon sold by our company: 6 yuan/kg, as well as water quality indicators. Ordinary activated carbon used for water treatment is replaced once a year/kloc-0, which depends on the quality of activated carbon you use. Generally speaking, activated carbon can be discarded and replaced with new ones after it loses adsorption saturation; There are many factors that affect the service life of activated carbon. First, it depends on whether you buy activated carbon to control water or waste gas. It depends on the use frequency of activated carbon, the quality of water or waste gas, and the quality of activated carbon itself. Generally speaking, the waste gas is replaced in about three months, and the water treatment is about one year. The specific service life depends on the actual situation.