摘要:
The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.
摘要:
A downflow mixer with a gas injection device and/or a baffle plate is provided to improve performance of mixing and/or aeration in basins, lagoons or tanks, particularly as part of water or wastewater treatment.
摘要:
A process for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process eliminates the need for separate basins for anaerobic and anoxic conditions, appropriate time periods for a quiescent environment for solids/liquid separation and mechanical decanter devices normally required to extract the desired effluent quality in conventional sequencing batch reactor systems.
摘要:
A downflow mixer with a gas injection device and/or a baffle plate is provided to improve performance of mixing and/or aeration in basins, lagoons or tanks, particularly as part of water or wastewater treatment.
摘要:
A method for filtering water or wastewater including the steps of filtering by gravity through a stationary cloth filter media supported in a treatment basin by a structure forming an effluent plenum, and cleaning the media by backwashing.
摘要:
The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
摘要:
The inventions separate the activated sludge, biochemical reaction stages of the batch treatment process of a sequencing batch reactor from the clarification and sedimentation stages by separating the locations where each process takes place. The separation may be accomplished in a variety of ways including constructing separate basins for each process, installing baffles or other partitions in a single vessel to isolate the areas where each process takes place, or other methods of process separation as are known in the art. In each process, treatment occurs through the performance of a series of operations. The operations are repeated for each batch of wastewater processed by the SBR. In a conventional SBR process, the cycle of operations for clarification and sedimentation are dependent on a preceding biochemical reaction step. However, in the present invention the clarification and sedimentation operations are independent of the biochemical reaction operations. It remains possible to coordinate operations so that the process cycles are coincident, however the benefits of the invention are more readily realized by the practice of independent operation.
摘要:
The present inventions relate to water and wastewater treatment devices including stationary cloth filter media support structures forming effluent plenums for the filtered influent and self-aligning backwash assemblies for efficient periodic cleaning of the cloth filter media.
摘要:
The present invention relates to stationary cloth media filtration systems and devices, as well as processes and devices for uniform flow distribution and improved cloth media filter backwashing.
摘要:
A process and apparatus for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge phase. The process and apparatus eliminate the need for separate basins for anaerobic and anoxic conditions, appropriate time periods for a quiescent environment for solids/liquid separation and the requirement of mechanical decanter devices normally required to extract the desired effluent quality in conventional sequencing batch reactor systems.