| 摘要 |
<p>PROBLEM TO BE SOLVED: To make alkaline waste water and carbon dioxide gas harmless inexpensively and efficiently by introducing exhaust containing a CO2 gas content generated in the manufacturing process of a ceramic industry product into a storage tank of waste water generated in the manufacturing process of the ceramic industry product and jetting the exhaust into waste water. SOLUTION: A waste water treatment system is provided with a ceramic industry manufacturing device, for example, a storage tank 1 for waste water generated by a cement product manufacturing device or the like and a combustion device such as a boiler 2 required for, for example, vapor curing or autoclave curing. An exhaust gas duct 4 extending from an exhaust cylinder 3 of the boiler 2 to the storage tank 1 is provided, and exhaust gas is compressed by a compressor 5, passed through a porous pipe 6 in the storage tank 1 and jetted into waste water W. Exhaust gas from the boiler 2 using town gas as a fuel is burnt while controlling the combustion temperature of the boiler 2 so as to keep the exhaust amount of NOx gas to the concentration of an environment target value. The neutralization of waste water and the removal of carbon dioxide gas for the exhaust gas can be carried out inexpensively by the arrangement.</p> |
