Polyaluminium chloride used to purify drinking water can be safely drink Alumina content is the effective component of PAC, we all know that aluminum has some harm, it is not polyaluminium chloride is also harmful, in fact, polyaluminum chloride as a net Aqueous agents, side effects can be neglected, and some people may be more serious, in the final analysis is not a side effect, most of the living tap water is treated with polyaluminum chloride, polyaluminum chloride is not organic, but inorganic polymers In addition, not all organic compounds are toxic. Aluminum can change the morphology of the cells in the organism. The poisoning of aluminum ions is manifested in three aspects: 1. Toxicity to microorganisms. Under low mass fraction, Bacteria, nitrobacteria, denitrifying bacteria have certain stimulating effect; when the mass fraction is high, it shows inhibition, has an adverse effect on the activity of anaerobic bacteria and aerobic bacteria in water, but the microorganisms have self-healing ability, In a certain concentration of culture for a period of time, microorganisms can produce resistance to aluminum toxicity; 2, animal and plant hazards, aluminum Has become one of the main factors that inhibit plant growth in acidic soils, which mainly endanger plant roots, thus affecting crop nutrient and water absorption; when the aluminum ion concentration is higher than 0.5mg / L, some fish may die; 3 , Aluminum is beneficial to the human body to a certain extent. It can alleviate some of the poisonous effects of lead on the human body. However, excessively consumed aluminum can be distributed in organs such as the liver, stomach, spleen, brain and thyroid to form premature senility, dementia, Anemia and some bone disease, adult daily intake of aluminum should not exceed 35mg.