Bactericidal algaecide can be used for algal disinfection and sterilization in circulating water; the dataset includes major raw materials, auxiliary materials, and energy used in the production process, but infrastructure such as production equipment and factory construction is not included within the system boundary of the dataset; the life cycle inventory is compiled from data obtained from multiple sources; the manufacturing process of bactericidal algaecide includes batch preparation, mixing, stirring, inspection, and packaging.