PURPOSE:To enable rational and automatic control, by measuring the distributions of sludge concn. in the depth in a sepn. tank, comparing the sludge concn. and the reference concn. of effluent, calculating the possible rates of the respective removal and extraction and controlling said rates. CONSTITUTION:A sludge distribution meter 13 provided to a sepn. tank 5 feeds the measured value of a sludg...

PURPOSE:To perform non-polluting treatment economically with less energy, by charging org. sludge contg. heavy metals into a methane fermentation tank, treating the sludge in said tank to convert the same to gaseous methane and gaseous carbon dioxide, adding a slag making agent to the residues and subjecting the residues to reduction melting in an electric furnace or the like. CONSTITUTION:Org. sl...

PURPOSE:To enable the easy transfer of slurries from a liquefying tank to a gasifying tank and to decrease the loss of heat energy, by providing the gasifying tank integrally around the liquefying tank, and providing a slurry transfer means between the liquefying tank and the gasifying tank. CONSTITUTION:The liquid to be treated which is introduced through an introducing pipe 11 into a liquefying ...

PURPOSE:To improve control and workability, by detecting the component of fermenting gases and providing an indicator which indicates the conditions for continuing combustion in apparatus for burning of fermenting gases or the state of the digesting liquid in a methane fermentation tank. CONSTITUTION:The concn. of methane in a methane producer is measured with a gas sensor 103 consisting of a gas ...

PURPOSE:To enable the efficient charging of waste without forcing in with bars or the like, by forming the discharge flow of the underwater pump in a fermentation tank into the flow from above to below in the feed port of the water sealing construction to be submerged into the liquid in the fermentation tank. CONSTITUTION:The org. waste through a feed port 3 is agitated by an underwater pump 10 in...

PURPOSE:To enable to charge waste in a sanitary condition without forcing in with a bar or the like, by forming an upper part of a feed port with a bottom end submerged into the liquid in a fermentation tank into a funnel shape, and connecting the discharge part of an underwater pump and the top end part of the feed port. CONSTITUTION:The org. waste through a funnel-shaped socket 3a for waste is p...

A lighting fitting comprising a supporting part or coupling part (1) and a screen part (3) which at least partly surrounds the light source, whereby the supporting part and the screen part are relatively adjustable and fixable in various positions about the longitudinal axis of the screen part.

PURPOSE:To improve the heat resistive property, the corrosionproofing property and the durability of the heat accumulating tank of FRP by a method wherein a resin, obtained from polyfunctional epoxy compound, polyfunctional isocyanate compound and hetero ring producing catalyst, and a fibrous reinforcing material are utilized for a surface corrosion-proofing layer or the like. CONSTITUTION:The res...