Biological wastewater usually comes from biological experiments in the laboratory, such as cell culture solution, serum, excreta and so on.
Chemical wastewater usually comes from chemical experiments in the laboratory, such as reagent solution, waste liquid and washing liquid.
Radioactive wastewater usually comes from radioactive experiments in the laboratory, such as radioisotope solution, waste liquid and washing liquid.
Laboratory wastewater generally contains organic, inorganic and microbial substances. Organic matter refers to substances containing carbon, such as protein, sugar and oil. Inorganic substances refer to substances that do not contain carbon, such as chlorides, sulfates and oxides. Microorganisms refer to tiny living or dead organisms, such as bacteria, fungi and viruses.