A trickling filter system comprises at least three filler material containers arranged one next to the other such that one of the at least three filler material containers is in a middle position. Each of the at least three filler material containers comprises, a top defining an opening, a bottom comprising a water-permeable support structure, and a space between the top and the bottom comprising a filler material. A rotary sprinkler container configured to at least partially receive a rotary sprinkler and is positioned on top of the one of the at least three filler material containers in the middle position. The rotary sprinkler container is configured to enable rotation of the rotary sprinkler to sweep over at least a portion of the at least three filler material containers.

The present disclosure provides an A/O tower integrated device for biological treatment of organic sewage containing COD and nitrogen, comprising a cylinder; a water distributing zone, a filtrating zone, a three-phase contact aerobic zone, a nitrification liquid reflux discharging zone and an anoxic zone are successively arranged in the cylinder from top to bottom; the three-phase contact aerobic zone is the non-ponding zone and the atmospheric high oxygen biofilm filling zone; the sewage inlet is set in anoxic zone; the water outlet of the anoxic zone is connected with the water inlet of the water distributing zone. The device integrates water distribution, filtration, aerobic and anoxic, thus saving occupied zone. The pollutant removal load per unit volume of the device is high; the aerobic zone can coordinately deal with the odor generated in the anoxic zone; the removal rates of COD, ammonia nitrogen and total nitrogen are high.

A low-pressure distribution system configured to pressurize effluent and distribute it throughout pressure conduits disposed within drainage conduits. The low-pressure distribution system may pressurize the effluent such that it is dispersed along a substantial portion or the entirety of the length of the pressure conduits and/or drainage conduits. To that end, the low-pressure distribution system may ensure an efficient distribution of the effluent throughout the drainage conduits while retaining an effluent flow rate therein suitable for the growth of microbial water treating bacteria.

A combination biological contactor and self-backwashing filter system for water treatment is disclosed. The system may include a treatment vessel defining an upper chamber and a lower chamber. A biological contactor may be disposed within the upper chamber, and a filter may be disposed in the lower chamber. A contactor outlet conduit and inlet manifold may be used to transfer water from the biological contactor to filter cells within the filter.

A method for optimizing filtration in an aquaculture system. The method for optimizing filtration includes, taking at least one sample of matter from an aquaculture system, defining at least one predetermined characteristic to test the sample of matter for, testing the at least one sample of matter, determining if the at least one predetermined characteristic is present within the sample, modifying resource distribution within the aquaculture system, taking at least two samples of matter within the aquaculture system, re-defining at least one predetermined characteristic to test the at least two samples of matter for, testing the at least two samples of matter, determining if the re-defined at least one predetermined characteristic is present within the at least two samples of matter and ensuring the filtration system will retain a state of optimization.

A liquid flow distribution system comprises a flow chamber and a rotor. The flow chamber has a flow chamber inlet, a flow chamber outlet and a chamber flow path extending from the flow chamber inlet to the flow chamber outlet. The flow chamber path is curved so as to generate a generally vortical flow in liquid passing through the chamber flow path. The rotor has a plurality of rotor blades rotatably mounted about a rotor axis. The rotor is mounted in proximity to the flow chamber outlet and positioned such that a flow of liquid exiting the flow chamber outlet impacts one or more of the rotor blades to rotationally drive the rotor. Rotational driving of the rotor in turn disperses liquid impacting the rotor blades.

In a method for treatment of waste water, a module (5) is used which includes a number of carrier elements (7) arranged in a sandwich structure and configured to be perfused a flow of waste water. The module (5) further has a number of partitions (8) arranged between carrier elements (7) and configured to direct the flow of waste water through the module (5). The module (5) may also be used in a system together with an air supplying device (20) and a waste water vessel. The air is supplied to the module (5) by the air supplying device (20).

A microbiological culture apparatus of a wastewater treatment system includes a cage, a spacing device received in the cage, and a plurality of culture woods vertically received in the cage and positioned by the spacing device. The spacing device restricts the culture woods in an upright status and spaces them from each other to form a passageway between each two of the neighboring culture woods. Wastewater flows through the passageways to have low temperature and high dissolved oxygen.

A wastewater treatment system includes an aeration tank under a plurality of trickling filters to receive wastewater from the trickling filters. A plurality of bacteria culture modules are received in each trickling filters. A plurality of blower devices and air pipes are provided to generate ventilation to cool the wastewater flowing out of the bacteria culture modules. Each of the bacteria culture modules has a cage in which a plurality of culture woods are vertically received. Therefore, a temperature of the wastewater is reduced to form an environment which is good to the bacteria.

A split stabilizer bearing for a mast of a rotary distributor includes a split cylindrical housing, a split filament wound bushing, a plurality of polytetrafluoroethylene-coated carbon fiber ring seals, an annular split seal retainer, and multiple fasteners. The filament wound bushing is disposed inside the housing, along an inner surface thereof. The bushing has a backing layer of high-strength glass fiber and an inner sliding layer of polytetrafluoroethylene (PTFE) and polymer fiber, the two layers both embedded in a epoxy resin matrix. The carbon fiber ring seals are disposed on axially or longitudinally opposed sides of the bushing and along an inner side or surface of the cylindrical housing, preferably in respective annular recesses or offsets along the inner side or surface of the housing. The fasteners, nylon-patch locking screws or bolts, couple the bushing and the split seal retainer to the housing.