Abstract: A separation device, such as a centrifugal dryer, for separating a mixture of a solid material and a fluid is described. The device has a housing having at least one housing inlet for supplying the mixture and at least one housing outlet for discharging the solid material or the fluid separated from the mixture. The device also has a rotor that is arranged within the housing and is mounted rotatably around a longitudinal axis. The rotor causes movement of the solid material in the direction of the longitudinal axis by rotating. The rotor has multiple rotor segments, which can be separated from each other.

Abstract: A method for reducing pollutant discharge in phenol acetone production, comprising at least one of the following steps: (A) collecting phenolic wastewater generated by a phenol-acetone plant, adjusting the pH value to acidic, and performing extraction and recovery on the phenols in wastewater using cumene as an extracting agent; (B) reducing the acetone content in the wastewater from a column bottom by means of optimizing the process of an acetone refining column; (C) treating the wastewater from the column bottom of the acetone refining column by using a permselective membrane, and recovering alkali; (D) neutralizing the wastewater obtained from step (C), mixing the neutralized wastewater with a condensation liquid at the top of a cumene oxidation column, and carrying out a detoxification treatment; (E) carrying out an oil separation treatment on total discharged wastewater from the phenol-acetone plant, and recovering organic matters comprising hydrocarbons; and (F) carrying out a biological treatment, a co

Abstract: There is described a system for the treatment of a wastewater in a pond or lagoon containing a volume of water. The system comprises at least one enclosure comprising growth media and/or substrate therein for growing bacteria and/or biomass. The at least one enclosure is configured in the pond or lagoon to receive a volume of wastewater flowing therethrough from the pond or lagoon over a treatment period, and is configured to treat substantially the entire volume of water flowing through the pond or lagoon over time. A plurality of growth media and/or substrate can be provided in a given enclosure. Different enclosures may comprise different growth media and substrate therein.

Abstract: 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.

Abstract: Methods and systems for controlling a denitrification reaction in a biological nitrogen removal reactor including denitrifying bacteria to favor denitratation of nitrate to nitrite and limit denitritation of nitrite to nitrogen gas are disclosed. pH, dissolved oxygen levels, solids retention time, and chemical oxygen demand to nitrogen ratio are controlled to favor this reaction. Wastewater or contaminated groundwater including concentrations of ammonium and nitrate are continuously fed to the biological nitrogen removal reactor along with a source of carbon and electrons as an influent, which is treated to form a nitrite effluent. The nitrite effluent may then be fed to an anammox reactor including anammox bacteria for production of nitrogen gas. The system may be operated under substantially anoxic conditions, which provides significant cost savings without sacrificing efficiency or productivity compared to traditional wastewater treatment systems and processes.

Abstract: In at least one illustrative embodiment, an electromagnetic filter may include a transfer pipe and multiple electromagnetic filter elements positioned in an interior volume of the pipe. Each electromagnetic filter element includes a support comb, a solenoid coupled to the support comb, and multiple magnetic members arranged in a planar array positioned within an opening of the support comb. Each magnetic member may rotate about an end that is coupled to the support comb. The magnetic members may be magnetostrictive sensors and may include a biorecognition element to bind with a target microorganism. A method for fluid filtration includes coupling the electromagnetic filter between a fluid source and a fluid destination, energizing the solenoids of each electromagnetic filter elements, and flowing a fluid media through the transfer pipe of the electromagnetic filter. The fluid media may be liquid food such as fruit juice. Other embodiments are described and claimed.

Abstract: Embodiments of the present invention pertain to a composite decalcification agent of calcified anaerobic granular sludge and a decalcification regeneration process.

Abstract: The present invention relates to separation methods and systems for converting high concentrations of animal wastes into useful products, wherein the separation of the desired useful products is conducted with a cross-flow filtration system having the ability to the separate desired useful energy and/or products from both viscous and non-viscous medium.

Abstract: A system and method for protecting workers, vehicles, and well-heads by enclosing well-site cellars with a series of framed plates. Each plate is perforated and configured for lifting with holes for hoisting the plates. Each plate is lipped to be retained by longitudinal edges of the cellar. A plurality of plates supports a platform for supporting a pipe wrangler adjacent a cellar based wellbore.

Abstract: A method and a pool cleaning robot that may include a housing; an opening formed in the housing; an impeller that is configured to rotate and to induce fluid to flow through the pool cleaning robot; a filter for filtering fluid that flows through the pool cleaning robot; and wherein at least one of element the filter and the impeller is configured to exit the pool cleaning robot through the opening.

Abstract: 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.

Abstract: A method and system for separating a suspension into solid and fluid components. The suspension is centrifuged about a substantially vertical axis of rotation to concentrate solid components in a first lower flow stream and fluid components in a first upper flow stream. The first upper flow stream may be centrifuged about a substantially vertical axis of rotation to concentrate solid components in a second lower flow stream and fluid components in a second upper flow stream. The first lower flow stream, the second lower flow stream, or both, may be centrifuged about a substantially horizontal axis of rotation to separate water from stackable dry tailings. The method and system may be applied to separation of tailings or other suspensions.

Abstract: The present invention relates to a wastewater treatment apparatus for shortcut nitrogen removal using anaerobic ammonium oxidation (ANAMMOX) and partial nitritation using ammonium oxidizing bacteria (AOB) granules. High-purity AOB granules are formed by means of AOB predominance using a side stream generated during a sludge treatment process. Moreover, the formed AOB granules are supplied to a partial nitritation tank (130) of a main treatment process and thus the partial nitritation is efficiently performed and nitrogen is quickly removed, and thus oxygen and an organic material is reduced compared to an existing method.

Abstract: Wastewater is received at an inlet of a nested coil of tubing. The nested coil of tubing includes an outer coil of tubing and at least one inner coil of tubing. The nested coil of tubing includes at least one of protrusions or filaments within an interior of the nested coil of tubing. The filaments or protrusions are radially arranged within an interior of the tubing, and microbial growth that is configured to treat the wastewater is disposed on at least portions of the interior. The wastewater is flowed through the nested coil of tubing. The microbial growth treats the wastewater to remove at least portions of sanitary waste in the wastewater. The treated wastewater is flowed through an outlet of the nested coil of tubing.

Abstract: A system and method for electromagnetic activation or active metals generation is disclosed herein. This system may include: a cylindrical housing; a plurality of inductor coils connected to a three phase alternating current source, where inductor coils are positioned in an interior space between the cylindrical housing and an exterior face of a conduit; the conduit installed inside the cylindrical housing, where the conduit includes a dielectric section with a perforated baffle a mechanism to secure the conduit to the cylindrical housing, a tube for adding a chemically active agent into the conduit, a dielectric section with a lid and a gas valve positioned on top of the lid at an end of the conduit, and a plurality of metal particles occupying the internal volume of the conduit and maintained in a relative position with respect to the inductor coils.

Abstract: A gas-liquid separation device (30) for an anaerobic purification device for purification of wastewater, the gas-liquid separation device comprising: a gas-liquid riser pipe (32); a separation pipe (34) attached to the gas-liquid riser pipe (32), the separation pipe defining an angle with the direction perpendicular to the gas-liquid riser pipe between ?45 degrees and +45 degrees, the separation pipe (34) configured to receive fluid from the gas-liquid riser pipe (32); at least one pipe gas outlet (35) located, when assembled with an anaerobic purification device, in a surface along the separation pipe (34) facing away from the ground, the at least one pipe gas outlet (35) configured to lead at least a portion of the gas in the separation pipe (34) outside the gas-liquid separation device; a hydraulic cyclone (36) attached to the separation pipe (34), the hydraulic cyclone configured to receive fluid from the separation pipe; at least one cyclone gas outlet (37) located in the upper side of the hydraulic c

Abstract: A magnetic water treatment system for use in treating water for agricultural and other uses. A magnetic column centered around a perforated shearing tube provides a number of magnets amplified by steel rods to deliver water that has smaller water clusters by treating the water with the application of magnetic fields. Magnetic fields perpendicular to the travel of water and in other directions provide for the efficient treatment of the water.

Abstract: The present invention relates to an average-density-adjustable structure and more specifically provides a structure the average density of which is adjusted by changing the material of the structure and the size of a void formed therein and which can thereby float on the surface of or in a liquid and can easily bond with or change a material present in a gas or liquid by being equipped with a first material, which is one among an organic catalyst, an inorganic catalyst, a microorganism, and a biomolecule.

Abstract: The present disclosure relates to settler plates for a plate settler. The settler plates generally include a hollow support with a hollow interior to receive clarified liquid from a flow channel between adjacent settler plates. An orifice is formed through the hollow support to direct clarified liquid from the flow channel into the hollow interior. The orifice can be positioned such that clarified liquid can flow upwardly out of the flow channel and downwardly through the orifice into the hollow interior. The hollow support can be integrally formed with the settler plate. For example, the hollow support can be formed by bending a tab extending from an end of the settler plate. The tab can be bent into a hollow support with a cross section that is generally polygonal.

Abstract: A drainage pipe un-dissolved waste catch assembly includes a panel that has a rear edge, a front edge, a first lateral edge, a second lateral edge, a top side and a bottom side. The panel has a plurality of apertures therein extending into the top side and through the bottom side. A plate is attached to and extends along the front edge and forms a angle with the top side is between 120° and 150. A coupler is attached to the top side of the panel adjacent to the rear edge and releasably engages a discharge tube such that the panel is positioned below and extends forward of the discharge tube. As waste water flows outwardly of the discharge tube, any un-dissolved materials therein will be retained on the panel.