초록 ▼

An apparatus and method for separating microalgae from water without rupturing cells. The method comprises the steps of flocculation, flotation and dehydration. Microalgae suspension from a reservoir is passed to a mixer unit where flocculation is carried out, using modified starch or other floccula

An apparatus and method for separating microalgae from water without rupturing cells. The method comprises the steps of flocculation, flotation and dehydration. Microalgae suspension from a reservoir is passed to a mixer unit where flocculation is carried out, using modified starch or other flocculating agents. The suspension is then directed to a flotation column. Dissolved gas in water is transferred to the flotation column through a disperser. A layer of foam containing microalgae is formed on the liquid layer in the column, which can be skimmed off through an overflow outlet. The flotation column is a telescopic column of adjustable height, which enables the position of the overflow outlet to be aligned with the level of the foam layer for efficient foam removal. Foam containing microalgae is then passed to a filtration unit for cloth filtration, followed by drying in a drying chamber.

대표청구항 ▼

An apparatus and method for separating microalgae from water without rupturing cells. The method comprises the steps of flocculation, flotation and dehydration. Microalgae suspension from a reservoir is passed to a mixer unit where flocculation is carried out, using modified starch or other floccula

An apparatus and method for separating microalgae from water without rupturing cells. The method comprises the steps of flocculation, flotation and dehydration. Microalgae suspension from a reservoir is passed to a mixer unit where flocculation is carried out, using modified starch or other flocculating agents. The suspension is then directed to a flotation column. Dissolved gas in water is transferred to the flotation column through a disperser. A layer of foam containing microalgae is formed on the liquid layer in the column, which can be skimmed off through an overflow outlet. The flotation column is a telescopic column of adjustable height, which enables the position of the overflow outlet to be aligned with the level of the foam layer for efficient foam removal. Foam containing microalgae is then passed to a filtration unit for cloth filtration, followed by drying in a drying chamber. truction present in the flow of waste water from the second outlet port of the reverse osmosis membrane vessel. 5. The method of retrofitting a pre-existing reverse osmosis system according to claim 4 further comprising after the removing step: transmitting the removed flow obstruction remotely from a site of the retrofitting as physical proof of conducting the retrofitting. 6. The method of retrofitting a pre-existing reverse osmosis system according to claim 3 wherein the first-inserting, the second-inserting and the third-inserting steps are done at the same time because the integrally-packaged first sub-assembly, the integrally-packaged second sub-assembly, and the integrally-package third sub-assembly are all (i) flow-connected and (ii) physically mounted together as one assembly.