| 摘要 |
<p>PURPOSE: To measure the water content and organic matter content of sludge with a simple configuration by applying light with the wavelength of water absorption wavelength band, with the wavelength affected by the shape of an organic matter other than a water absorption wavelength band, and with a comparison wavelength to a target to be measured for detecting reflection light. CONSTITUTION: Dehydrated sludge 2 which is dehydrated 1 to have water content of approximately 30-80%, is dried to a degree of moisture content of approximately 20-30% by a drying device 3 and is carried to a combustion device 5 as a dry sludge 4. While the sludge is carried to the device 3 and the device 5, moisture meters 6A and 6B switch a filter and apply light with a wavelength of the water absorption wavelength band, a wavelength affected by the property of an organic matter other than the water absorption wavelength band, a wavelength affected by the property of tint, and a wavelength of a wavelength band for comparison other than these to the sludges 2 and 4, and receives each reflection light and takes out corresponding each detection signal and a comparison signal. Then, the degree of moisture of the sludge 2 is measured by the moisture meter 6A and properties such as the degree of moisture of the sludge 4 or tint, and organic content inclusion rate are measured by the moisture meter 6B.</p> |
