Chemical waste including organic, inorganic waste. Organic waste includes some highly toxic organic samples, such as pesticides, benzo(a)pyrene, aflatoxin, nitrosamine and so on. Inorganic pollution waste has strong acid, strong alkali pollution, heavy metal pollution, cyanide pollution and so on. Among them, mercury, arsenic, lead, cadmium, chromium and other heavy metals are not only strong toxicity, and there is accumulation in the human body.
Biological waste, including testing, laboratory specimens, such as blood, urine, feces, sputum and vomit, etc.; testing supplies such as laboratory equipment, bacterial culture media and bacterial positive specimens. Moreover, laboratories carrying out biological experiments will produce a large amount of culture solution and culture medium with high concentration of harmful microorganisms, which will cause serious consequences if they are directly discharged without proper sterilization treatment. Biological laboratory ventilation equipment design is not perfect or the experimental process of personal safety protection loopholes, will also make biological bacterial toxin diffusion and dissemination, bring pollution, and even bring serious adverse consequences.