An apparatus for purifying water to be purified is provided with a tank with a bottom to receive sediment, an inlet connected to the bottom itself, at least one pump, outside the tank and connected to the inlet, at least one conduit disposed axially inside the tank, diverging upward and fluidically connected to the inlet to receive pressurized water fed by the pump, and a hydraulic accelerator/mixer assembly disposed in the tank and which connects the inlet to the conduit. The hydraulic accelerator/mixer assembly is configured to increase the speed of the flow of water to be purified, introduced into the tank.

A flocculating, grading, and dewatering device includes a tank body, a mixing zone, a flocculent settling zone, a centrifugal dewatering zone, and a particle screening zone. An initial material is mixed with a chemical agent for a flocculation reaction, a lower sediment material settles and an upper liquid overflows. In the centrifugal dewatering zone, a screen basket is allowed to rotate to facilitate a centrifugal movement of the sediment material, water in the sediment material moves into a guide cavity and then flows to a centrifugate outlet, and then a dewatered material in the screen basket is removed out of the screen basket. In the particle screening zone, a screening mechanism screens particles of different size grades in the dewatered material, and water generated flows downward and is discharged; liquids discharged from the centrifugate outlet and the overflow port are combined, and then discharged through a mixed liquid outlet.

A system is provided for collecting cellular material from fish for subsequent DNA analysis. A channel includes a sample collection zone. A fluid ejector is directed into the sample collection zone. A fluid collector is communicated with the sample collection zone. A controller is configured to coordinate ejection of a fluid jet from the fluid ejector and collection of a fluid sample by the fluid collector. The fluid jet dislodges cellular material such as scales and mucous from the fish. The fluid collector collects that cellular material in a fluid sample for subsequent DNA analysis.

A wastewater dissolved-air floatation apparatus combined with a precipitation tank having sloped plates is proposed. The apparatus can reduce a transfer load according to the discharge of sludge, when the sludge is discharged through a discharge screw which is a discharge means, so as to enable sludge discharge efficiency to be maximized, has a cleaning means so as to enable components provided therein to be easily cleaned, maintained and managed through cleaning when the inside thereof is required to be cleaned, can control the discharge level of wastewater, which has been treated while sludge precipitation and suspended particle floatation are stably performed thereon inside a separation tank to which microbubbles are supplied, selectively blocks the supply of the microbubbles into the separation tank so as to use the separation tank as a precipitation tank.

A wastewater dissolved-air floatation apparatus combined with a precipitation tank having sloped plates is proposed. The apparatus can reduce a transfer load according to the discharge of sludge, when the sludge is discharged through a discharge screw which is a discharge means, so as to enable sludge discharge efficiency to be maximized, has a cleaning means so as to enable components provided therein to be easily cleaned, maintained and managed through cleaning when the inside thereof is required to be cleaned, can control the discharge level of wastewater, which has been treated while sludge precipitation and suspended particle floatation are stably performed thereon inside a separation tank to which microbubbles are supplied, selectively blocks the supply of the microbubbles into the separation tank so as to use the separation tank as a precipitation tank.

A filtering system capable of removing particulates from a water slurry is disclosed. The filtering system comprises a base plate, the base plate comprising a sealing surface and a slurry inlet. A flexible vessel is configured to seal to the sealing surface, and an interior cavity, wherein the flexible vessel is formed of a flexible filtering material capable of retaining particulates. The flexible vessel permits liquid entering through the slurry inlet to pass through the filtering material and is capable of withstanding an internal pressure sufficient to form a particulate cake without rupturing the flexible vessel. A sealing system is provided for retaining an upper portion of the flexible vessel against the sealing surface. The filtering system may be part of a portable system that includes a cart, hoses, piping, a pneumatic pump and a control panel.

A filtering system capable of removing particulates from a water slurry is disclosed. The filtering system comprises a base plate, the base plate comprising a sealing surface and a slurry inlet. A flexible vessel is configured to seal to the sealing surface, and an interior cavity, wherein the flexible vessel is formed of a flexible filtering material capable of retaining particulates. The flexible vessel permits liquid entering through the slurry inlet to pass through the filtering material and is capable of withstanding an internal pressure sufficient to form a particulate cake without rupturing the flexible vessel. A sealing system is provided for retaining an upper portion of the flexible vessel against the sealing surface. The filtering system may be part of a portable system that includes a cart, hoses, piping, a pneumatic pump and a control panel.

A spoil treatment plant configured within a frame for easy relocation. The spoil treatment plant comprises a dump bin held within the frame for receiving spoil, a vibrating screen separator mounted in the frame away from the dump bin, an elevator located within the frame, the elevator transporting spoil from the dump bin to the vibrating screen separator, a slurry tank within the frame below the vibrating screen separator that collects slurry; and a chute adjacent the vibrating screen separator that delivers spadeable fill. The vibrating screen separator separates the spoil into spadeable fill delivered from the chute and fine slurry delivered to the slurry tank. The spoil treatment plant may also comprise a further dewatering element, such as a rotary press, that extracts water from the spadeable fill.

A filtering system capable of removing particulates from a water slurry is disclosed. The filtering system comprises a base plate, the base plate comprising a sealing surface and a slurry inlet. A flexible vessel is configured to seal to the sealing surface, and an interior cavity, wherein the flexible vessel is formed of a flexible filtering material capable of retaining particulates. The flexible vessel permits liquid entering through the slurry inlet to pass through the filtering material and is capable of withstanding an internal pressure sufficient to form a particulate cake without rupturing the flexible vessel. A sealing system is provided for retaining an upper portion of the flexible vessel against the sealing surface. The filtering system may be part of a portable system that includes a cart, hoses, piping, a pneumatic pump and a control panel.

A spoil treatment plant configured within a frame for easy relocation. The spoil treatment plant comprises a dump bin held within the frame for receiving spoil, a vibrating screen separator mounted in the frame away from the dump bin, an elevator located within the frame, the elevator transporting spoil from the dump bin to the vibrating screen separator, a slurry tank within the frame below the vibrating screen separator that collects slurry; and a chute adjacent the vibrating screen separator that delivers spadeable fill. The vibrating screen separator separates the spoil into spadeable fill delivered from the chute and fine slurry delivered to the slurry tank. The spoil treatment plant may also comprise a further dewatering element, such as a rotary press, that extracts water from the spadeable fill.