摘要:
A waste treatment system connected to a sewage treatment plant includes an organic waste supply unit for drying and storing organic wastes, a combustible waste supply unit for supplying combustible wastes, a first combustion device for burning the organic wastes supplied from the organic waste supply unit at high temperature, a second combustion device for burning the combustible wastes supplied from the combustible waste supply unit at low temperature, a first generator connected to the first combustion device so as to perform combined heat and power generation with high efficiency by high-temperature water vapor, a second generator connected to the second combustion device so as to perform combined heat and power generation with low efficiency by low-temperature water vapor, and a hot water generation unit for generating hot water using waste heat generated by the first and second generators and supplying the generated hot water to a sewage treatment plant and the organic waste supply unit. According to the waste treatment system connected to a sewage treatment plant having the above configuration, the organic wastes may be dried using the waste heat generated in the process of generating electric power by the high-temperature water vapor generated when the organic wastes are incinerated at high temperature, sewage may be treated using the waste heat generated in the process of generating electric power by the low-temperature water vapor generated when the combustible wastes are incinerated at low temperature, and offensive odors generated in organic waste drying equipment or in the sewage treatment plant may be removed by incinerating the offensive odors in a high-temperature incinerator or in a low-temperature incinerator.