An installation for treating a wastewater effluent in a constant-level sequencing batch reactor (SBR), the SBR includes a chamber that is able to contain a mixture of wastewater and sludge comprising different levels, each level being defined by a concentration and/or a density of sludge, a sludge bed situated at the bottom of the chamber, a device for supplying the SBR with a volume of effluent to be treated close to the bottom of the chamber, in the sludge bed, preferably via a distribution network covering the bottom of the chamber, means for recovering a clarified fraction of the contents of the chamber, the SBR being able to implement a treatment method comprising a biological treatment reaction sequence comprising at least a step of aerating the contents of the chamber, during which the level of the surface of the mixture rises, a decanting step, during which sludge is deposited on the bottom of the chamber and the contents of the chamber are clarified close to the surface thereof, a step of recovering the clarified fraction of the contents of the chamber, the recovery step and supply step taking place simultaneously, so as to keep the level of the contents of the chamber substantially constant during the recovery step and supply step, the installation also comprising control means and recovery means.

An installation for treating a wastewater effluent in a constant-level sequencing batch reactor (SBR), the SBR includes a chamber that is able to contain a mixture of wastewater and sludge comprising different levels, each level being defined by a concentration and/or a density of sludge, a sludge bed situated at the bottom of the chamber, a device for supplying the SBR with a volume of effluent to be treated close to the bottom of the chamber, in the sludge bed, preferably via a distribution network covering the bottom of the chamber, means for recovering a clarified fraction of the contents of the chamber, the SBR being able to implement a treatment method comprising a biological treatment reaction sequence comprising at least a step of aerating the contents of the chamber, during which the level of the surface of the mixture rises, a decanting step, during which sludge is deposited on the bottom of the chamber and the contents of the chamber are clarified close to the surface thereof, a step of recovering the clarified fraction of the contents of the chamber, the recovery step and supply step taking place simultaneously, so as to keep the level of the contents of the chamber substantially constant during the recovery step and supply step, the installation also comprising control means and recovery means.

The system for a continuous dewatering recirculating for removing particulate such as coal combustion residue from a water stream. The system includes multiple dewatering and recirculation containers, each having a submerged flight conveyor and lamella settlings plate located therein, at least one dewatering and recirculation container receives ash water stream overflow.

The system for a continuous dewatering recirculating for removing particulate such as coal combustion residue from a water stream. The system includes multiple dewatering and recirculation containers, each having a submerged flight conveyor and lamella settlings plate located therein, at least one dewatering and recirculation container receives ash water stream overflow.

A compact hydraulic particle separator apparatus is disclosed. The disclosed apparatus comprises an upper chamber and a lower chamber separated by a partition. A liquid fluid flow upwelling through the partition from the lower chamber is caused to mix with tangential jet of fluid flowing introduced above the partition in the upper chamber produces an upwardly-flowing cyclonic flow within the upper chamber. Particle mixtures containing low- and high-density particles and other solids are introduced into the upper chamber through a feed tube having a mouth that is offset from the center of the upper chamber. Low-density particles are immediately entrained in the cyclonic flow and swept upward and exit the apparatus.

A compact hydraulic particle separator apparatus is disclosed. The disclosed apparatus comprises an upper chamber and a lower chamber separated by a partition. A liquid fluid flow upwelling through the partition from the lower chamber is caused to mix with tangential jet of fluid flowing introduced above the partition in the upper chamber produces an upwardly-flowing cyclonic flow within the upper chamber. Particle mixtures containing low- and high-density particles and other solids are introduced into the upper chamber through a feed tube having a mouth that is offset from the center of the upper chamber. Low-density particles are immediately entrained in the cyclonic flow and swept upward and exit the apparatus.

Disclosed is a sedimentation tank system including high-rate filtration part and being capable of primary treatment of sewage and wastewater, flow rate adjustment, and treatment of wetweather flow. According to an aspect of the present disclosure, there is provided a sedimentation tank system for removing solids in an influent sewage and wastewater, the sedimentation tank including a filtration part which includes a filter medium and removes solids in the influent sewage and wastewater, a sedimentation tank with a water gate formed at a predetermined height to store sewage and wastewater flowing over the water gate, and an outflow distribution channel that receives, from the filtration part, sewage and wastewater from which solids have been removed, and discharges the same to the outside of the primary sedimentation tank.

Disclosed is a sedimentation tank system including high-rate filtration part and being capable of primary treatment of sewage and wastewater, flow rate adjustment, and treatment of wetweather flow. According to an aspect of the present disclosure, there is provided a sedimentation tank system for removing solids in an influent sewage and wastewater, the sedimentation tank including a filtration part which includes a filter medium and removes solids in the influent sewage and wastewater, a sedimentation tank with a water gate formed at a predetermined height to store sewage and wastewater flowing over the water gate, and an outflow distribution channel that receives, from the filtration part, sewage and wastewater from which solids have been removed, and discharges the same to the outside of the primary sedimentation tank.

Blood in a separation chamber is separated into a red blood cell layer, a plasma constituent, and a mononuclear cell-containing layer. A portion of the plasma constituent exits the chamber via a plasma outlet, while a first portion of the red blood cell layer exits via a red blood cell outlet. A second portion of the red blood cell layer exits the chamber via the red blood cell outlet and is collected. At least a portion of the collected red blood cell layer may then be conveyed to the chamber via the red blood cell outlet to convey at least a portion of the mononuclear cell-containing layer out of the chamber via the plasma outlet for collection. A second portion of the plasma constituent may be conveyed out of the chamber via the plasma outlet to more fully collect the mononuclear cell-containing layer without the use of collected plasma.

Blood in a separation chamber is separated into a red blood cell layer, a plasma constituent, and a mononuclear cell-containing layer. A portion of the plasma constituent exits the chamber via a plasma outlet, while a first portion of the red blood cell layer exits via a red blood cell outlet. A second portion of the red blood cell layer exits the chamber via the red blood cell outlet and is collected. At least a portion of the collected red blood cell layer may then be conveyed to the chamber via the red blood cell outlet to convey at least a portion of the mononuclear cell-containing layer out of the chamber via the plasma outlet for collection. A second portion of the plasma constituent may be conveyed out of the chamber via the plasma outlet to more fully collect the mononuclear cell-containing layer without the use of collected plasma.