Abstract: A separation apparatus using a membrane for diafiltration, which provides precise fractionation of a target substance by monitoring and regulating permeability of the target substance based on measurement values and analytical values indicating separation status, such as physical values and concentration of a permeate liquid, a circulating liquid and an internal circulating liquid in a membrane device. A diafiltration process including adding a cleaning liquid to an treating liquid which contains multiple target substances and extracting a target substance into the permeate liquid supplied from a membrane separation apparatus to fractionate the target substance from other target substances remaining in a residual liquid.

Abstract: [Problem] To provide a waste combustion method enabling to utilize efficiently heat energy of a large amount of a wet gas generated from a high temperature gas, which is discharged from a waste combustion furnace so as to be cooled and washed [Means for Solving Problem] A method of power generation by waste combustion comprising supplying the waste into a combustion furnace 1 for combustion, feeding a combustion gas from the combustion furnace 1 into a quenching vessel 4 containing a cooling/dissolving water and bringing the combustion exhaust gas into direct contact with the cooling/dissolving water and thus generating a wet gas wherein this wet gas G is supplied directly into a power generation system 10 employing a working medium, or a heat recovery medium, which has been exchanged with the wet gas G, is supplied into the power generation system 10, so that the power generation system is operated.

Abstract: A separation apparatus using a membrane for diafiltration, which provides precise fractionation of a target substance by monitoring and regulating permeability of the target substance based on measurement values and analytical values indicating separation status, such as physical values and concentration of a permeate liquid, a circulating liquid and an internal circulating liquid in a membrane device. A diafiltration process including adding a cleaning liquid to an treating liquid which contains multiple target substances and extracting a target substance into the permeate liquid supplied from a membrane separation apparatus to fractionate the target substance from other target substances remaining in a residual liquid.