Abstract: A filter module includes: a center tube having at least one purified water inlet on an outer peripheral surface thereof and provided at one end thereof with a connection portion having a purified water outlet formed therein; a reverse osmosis filter wound on the center tube, the reverse osmosis filtering raw water introduced through one end thereof and discharging the filtered raw water to the purified water inlet; and a post-treatment filter disposed inside the center tube and allowing purified water introduced into the center tube to be post-treated by passing through the post-treatment filter, wherein the center tube includes: a first tube member provided at one end thereof with the connection portion and having a first post-treatment filter mounting slot formed therein; and a second tube member detachably connected to the other end of the first tube member and having a second post-treatment filter mounting slot formed therein.

Abstract: Disclosed are floating island assemblies for phytoremediating a water body, the floating island assembly comprising a buoyant framework for positioning in the water body, the buoyant framework comprising as shell with a foam core material disposed therein, and defining a growing area within the perimeter thereof for growing plants, a grate secured across the framework and below the growing area; and a geotextile material disposed over the grate.

Abstract: A defoaming structure of a separation device includes a cyclone including an introduction portion and a drain portion including a discharge port, and a cylindrical member surrounding the discharge port and extending downward from the discharge port. The drain portion includes a first member connected to the introduction portion, a second member connected to the first member and having a discharge port, and a first inner peripheral surface formed from the first member toward the second member and having an inner diameter decreasing downward.

Abstract: The present invention generally relates to systems and methods for the separation and removal of methane from an agricultural methane digestate, for example, agricultural waste. The systems and methods include an extraction system that exposes the methane digestate to agricultural commodities and a microbial additives resulting in products that can be recycled.

Abstract: The present invention discloses a device for influent distribution and thickened sludge fermentation to enhance hydraulic impact resistance and nitrogen and phosphorus removal function of an MSBR system, which includes an influent distribution device, a hydrolysis and fermentation tank and an MSBR system connected thereto. The influent distribution device, the hydrolysis and fermentation tank and the MSBR system are all connected to an external online control platform.

Abstract: A method and a system for a continuous-flow aerobic granular sludge (AGS) process with improved two-stage sedimentation are provided. The method includes the following steps: arranging a biochemical reaction tank, a granular sludge sedimentation tank, and an inclined plate sedimentation tank that are connected sequentially, and arranging an inclined device in the inclined plate sedimentation tank; allowing sewage to continuously flow into the biochemical reaction tank, and allowing a sludge-water mixture obtained after a biochemical reaction to enter the granular sludge sedimentation tank, such that heavy sludge in the sludge-water mixture is quickly settled in the granular sludge sedimentation tank and returned to the biochemical reaction tank; and allowing light flocculent sludge in the sludge-water mixture to flow into the inclined plate sedimentation tank.

Abstract: Described are apparatus, systems, and methods of improving cleaning of, e.g., stairs of swimming pools. Automatic swimming pool cleaners (APCs) capable of autonomous movement within water-containing vessels may be utilized to provide enhanced cleaning of sections of the vessels containing stairs or other angled surfaces.

Abstract: The present invention relates to a biological filtration process for water loaded with nitrogenous pollutants in order to reduce the global nitrogen content of said water, characterised in that it comprises a first step of nitritation and filtration carried out in a first aerated biological reactor, a second step of deammonification, denitrification and filtration carried out in a second non-aerated biological reactor, and a step of evaluation of the ratio of the nitrite content to the ammoniacal nitrogen content of the water at the outlet of the first reactor. When this ratio is greater than a predetermined stoichiometry value, the process according to the invention comprises a step of addition of water to be treated to the water originating from the first reactor so as to obtain, at the inlet of the second reactor, a mixture having a ratio of the nitrite content to the ammoniacal nitrogen content that is close to the stoichiometric ratio of the Anammox reaction.

Abstract: The present invention relates to a method for treating wastewater containing a furan compound, a microbial preparation for use in the method, a method for high density culture of a microorganism for use in the above method, and a method for producing a microbial preparation by using the culture method.

Abstract: Disclosed is an efficient nitrogen and phosphorus removal process system for mariculture tail water treatment. The process system comprises a physical filtering device, an efficient biological treatment unit, a flocculation sedimentation tank, a sand filtering tank, a clean water tank and a sludge tank, wherein the physical filtering device, the efficient biological treatment unit, the flocculation sedimentation tank, the sand filtering tank and the clean water tank are sequentially connected; the physical filtering device, the efficient biological treatment unit, the flocculation sedimentation tank and the sand filtering tank are all connected with the sludge tank through pipelines, and the physical filtering device and the sand filtering tank are both connected with the clean water tank through pipelines.

Abstract: The present disclosure provides a dewatering method that includes combining water, a dewatering flocculant, and nanobubbles to form a dewatering composition. The method includes combining the dewatering composition with a solids-containing liquid stream to form a dewaterable composition. The method includes dewatering the dewaterable composition to form a water stream and a dewatered product having a solids content that is greater than the solids content of the solids-containing liquid stream.

Abstract: A water mixing device includes: a cold-water module including a cold-water tank, a cooler cooling the water accommodated in the cold-water tank, and a cold-water temperature sensor; a hot-water module including a hot-water tank that accommodates water discharged from the cold-water tank, and a heater that heats the water accommodated in the hot-water tank; a flow channel connected to the cold-water tank and the hot-water tank; a valve unit including valve modules opened or closed to adjust a flow of water in the flow channel; and a controller configured to control the valve modules. The flow channel mixes water cooled by the cooler and water heated by the heater to provide discharge water. When the temperature of water detected by the cold-water temperature sensor is higher than a preset threshold temperature, the controller controls the valve modules to prevent water from flowing into the cold-water tank.

Abstract: The invention concerns a digester for performing a sludge methanization treatment for the purpose of generating biogas and a digestate, the digester comprising a device (32) for discharging foaming and/or floating matter (16) from the digestate (12), comprising: a first tank (33) delimited by a first wall (100) having a first height (h1), the first tank (33) being intended to be fed with digestate (12) and with foaming and/or floating matter (16) from a volume of material (14) by overflow over the first wall (100); a second tank (34) connected to the atmosphere and sited outside the enclosure (13) of the digester, comprising: a first zone (35) delimited by a second wall (103) having a second height (h2); and a second zone (36) in communication with the reservoir (19); a conduit (37) connecting the first tank (33) via a first orifice (101) to the first zone (35) of the second tank (34) via a second orifice (102) positioned higher than or level with the first orifice (101), the first zone (35) being intended to

Abstract: A method for improved anaerobic digestion is presented. The method includes mixing a volume of waste material with water to form a feedstock mixture. The volume of waste material includes an initial amount of biomass and the feedstock mixture includes methanogenic bacteria either naturally present in the waste material or introduced artificially. The method also includes introducing one or more promoter substances to the feedstock mixture. The one or more promoter substances are capable of modifying the methanogenic bacteria. Modifying includes stimulating novel enzyme production in the methanogenic bacteria.

Abstract: A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.

Abstract: A vacuum airlift system for treating an aqueous effluent includes an upflow liquid portion, where the upflow liquid portion is configured to retain a fluid, and a fluid inlet, the fluid inlet being fluidly coupled with the upflow liquid portion, where the fluid inlet is positioned at about a bottom of the upflow liquid portion. The vacuum airlift system can also include a downflow liquid portion, where the downflow liquid portion is fluidly coupled with the upflow liquid portion, and a fluid outlet, the fluid outlet being fluidly coupled with the downflow liquid portion, where the fluid outlet is positioned at about a bottom of the downflow liquid portion. The vacuum airlift system can also include a plurality of aerators fed by one or more fluidic oscillators; the plurality of aerators being coupled to the upflow liquid column.

Abstract: Disclosed is an automatic pool cleaning apparatus including a housing and a filter. The housing has a water inlet and a water outlet thereon, and includes inside a first chamber and at least one second chamber separated from the first chamber. The water inlet, the first chamber and the first water outlet are communicated to form a water flow channel on which the filter is configured.

Abstract: An ultrapure water production system capable of producing ultrapure water from which fine particles have been highly removed and supplying the ultrapure water to a point of use is equipped with at least an ultrafiltration membrane device, and includes: a first organic porous ion exchanger provided at a position downstream of the ultrafiltration membrane device in an ultrapure water supply line for supplying the ultrapure water to the point of use; and a microfiltration membrane device provided, in the ultrapure water supply line, at a position downstream of the first organic porous ion exchanger.

Abstract: The present invention discloses a seawater desalination system and resourcezation system. The seawater desalination system comprises a raw water tank, a seawater pretreatment device, a seawater desalination device, a desalination water tank and a nanofiltration recovery device; The resourcezation system comprises the seawater desalination system, a salt separation nanofiltration device, a univalent concentrated brine tank and a bivalent concentrated brine tank; The present invention realizes seawater desalination and concentrated water resourcezation treatment for seawater, and at the same time, can reduce the operating pressure, reduce the cost and save energy consumption.

Abstract: A woven geometric textile material has a body portion having a plurality of weft strands woven with a plurality of warp strands comprising thermoplastic strands, the body portion comprising a body weave having a plurality of repeating weave patterns in a grid of patterns, each weave pattern including at least 44 body warp strands and at least 44 weft strands and the body portion having a solid fraction of less than 3 percent. A separator media comprising the textile material and a separator device employing the separator media are disclosed. A loom for making the textile material and method of making the textile material is disclosed.