Abstract: Self-delivering digester 100s with self-delivery of accumulated solids are described. A primary waste vessel includes a feeding port for kitchen waste, and an upper output component that connects to a top of the primary waste vessel. The upper output component includes a gas output path from a top of the upper output component, and a floating solids output path that delivers floating solids that overflow from the top of the primary waste vessel to a secondary vessel thereby preventing clogging of the gas output path.

Abstract: A method comprises flowing a mixture comprising a water-based reaction medium and at least one microalgae into a reaction vessel, wherein the reaction medium comprises a nutrient material that is consumable by a live microalgae, bacterium, or protozoa present in the reaction medium, incubating the mixture under at least intermittent illumination with a specified luminous flux such that the microalgae forms a supporting matrix that incorporates the live microalgae, bacterium, or protozoa into biologically-active bioaggregate granules, selecting out a first specified portion of the biologically-active bioaggregate granules that are smaller than a first specified size or below a first specified weight or selecting out a second specified portion of the biologically-active bioaggregate granules that are larger than a second specified size or over a second specified weight and removing the first and/or the second specified portions of the biologically-active bioaggregate granules in an effluent stream.

Abstract: A system for environmental remediation of halogenated compounds such as chlorinated solvents is presented, the system comprising at least one bacterial strain capable of microbial chain elongation; at least one bacterial strain capable of reductive dehalogenation; and an alcohol. Also presented is a method remediating an environmental sample, the method comprising the steps of: providing a remediation composition; and treating an environmental sample comprising at least one chlorinated pollutant with the remediation composition; wherein the remediation composition comprises at least one bacterial strain capable of microbial chain elongation; at least one bacterial strain capable of reductive dehalogenation; and at least one bacterial strain capable of fermentation.

Abstract: The present disclosure discloses a water surface automatic cleaning device, including a main body, a cavity is provided in the main body; and a garbage bin is disposed at the cavity, an inlet is disposed on a sidewall of the garbage bin, and an anti-leakage baffle is configurated to open or close at least a part of area of the inlet.

Abstract: Techniques and systems for neutralizing discharge waters from ballast and/or cooling water biocidal treatment and disinfection systems are provided. The systems utilize oxidation reduction potential control to regulate the dechlorination of a biocidal agent to allowable discharge levels in ship buoyancy systems and ship cooling water systems.

Abstract: A sealing closure assembly for closing a skimmer opening of a swimming pool has a skimmer faceplate with a sidewall and a flange protruding from the sidewall, and a cover removably connectable to the skimmer faceplate. The cover has a cover plate configured for engaging at least a portion of the sidewall of the skimmer faceplate; and at least a pair of closure members connected to opposing ends of the cover plate for locking the cover plate to the skimmer faceplate. Each of the closure members includes a body having a first end connected to the cover plate and a second end protruding relative to the first end, and a locking member having a first end connected to the second end of the body and a second end extending toward the first end of the body. The second end of the locking member is deflectable relative to the first end.

Abstract: The present disclosure relates to a Prussian blue-based coagulant and a microplastic coagulation method using the same, which may effectively coagulate microplastics having a size of less than 20 ?m or nanoplastics and implement an environmentally harmless coagulation process, and the Prussian blue-based coagulant according to the present disclosure refers to Prussian blue being used as a coagulant for microplastics present in a water-system environment.

Abstract: The invention discloses a method to provide a consortium containing heterotrophic nitrifying and aerobic denitrifying microorganisms from an activated sludge originating from effluent treatment plants. The microbial consortium is capable of removing ammoniacal nitrogen from substrates with high salinity with superior efficiency. Thus, the microbial consortium from the described method can be applied to purify hypersaline effluents contaminated with nitrogen. Therefore, the use of the microorganism consortium provided to remove ammoniacal nitrogen from hypersaline effluents and a method therefor are also part of the scope of the invention.

Abstract: Provided is a micro-polluted water body ecological treatment method based on aquatic forest system construction. The method comprises the following steps: (1) investigating a pollution source of a micro-polluted water body; (2) estimating an annual pollution load of the micro-polluted water body which needs to be reduced; (3) designing aquatic animals and plants; and (4) constructing the aquatic animals and plants. By using a water body treated by means of the method in the present invention, an aquatic forest can be formed, and the synergistic effect, nutritional relationship, food chain relationship, etc., between organisms can be fully utilized for effective operation, such that not only can the combined benefits of water quality purification and water body resource utilization be achieved, but the organic unity of environmental protection, economic development, and the improvement of people's livelihood can also be realized.

Abstract: An organic solid waste anaerobic digestion device based on uncoupling of hydraulic retention time (HRT) from sludge retention time (SRT) includes a self-sustaining air flotation screening tank. A sludge pipe of the self-sustaining air flotation screening tank is connected with a first separating mechanism. A bottom of the first separating mechanism is connected with a second separating mechanism, and two separating mechanisms are connected with a return pipe of the self-sustaining air flotation screening tank. Through the two separating mechanisms, the heavy inert materials at the bottom of the self-sustaining air flotation screening tank can be subjected to swirl separation, so that the liquid part, the solid part and the gas part can be completely separated, and then the useful active materials are conveyed to the reaction device.

Abstract: A skimmer apparatus comprising: a buoyant horizontal structure, a pocket-shaped net, a guide element longer than the buoyant horizontal structure and associated to the said buoyant horizontal structure, at least two ends of the buoyant horizontal structure are coupled to at least two parallel expanders, the ends of the at least two parallel expanders being attached to the pocket-shaped net (20).

Abstract: The present invention relates to a biogas production system using organic waste, including: a pretreatment facility having a mixed equalization tank adapted to equally mix food waste and livestock manure and treat and produce the mixed food waste and livestock manure as the organic waste; an anaerobic digestion facility having anaerobic digesters adapted to perform anaerobic digestion of the organic waste introduced thereinto; a gas refinery and power plant having a cogeneration plant adapted to perform cogeneration using the biogas produced in the anaerobic digestion facility; a composting and liquefaction facility having a solid-liquid separator adapted to separate the organic waste fed from the anaerobic digesters of the anaerobic digestion facility into liquid and sludge; and an odor treatment facility for purifying the odor emitted from the mixed equalization tank.

Abstract: A device for cooperatively treating aquaculture tail water by algae and bacteria is provided, including an aquaculture part; the aquaculture part is communicated with a sewage discharge part, and the sewage discharge part is communicated with a tail water treatment part, and the tail water treatment part is communicated with the aquaculture part; the sewage discharge part includes a sewage pipe communicated with the aquaculture part, where one end of the sewage pipe away from the aquaculture part is communicated with the tail water treatment part, and a sewage pump is arranged on the sewage pipe; the tail water treatment part includes a second shell, a bottom end of the second shell is communicated with the sewage pipe, a top end of a side wall of the second shell is communicated with the aquaculture part, several guide plates are arranged in the second shell.

Abstract: A system comprising a collocated thermal plant, water source, CO2 source and biomass growth module is disclosed. A method of improving the environment by utilizing the system is disclosed.

Abstract: The hybrid solar still and anaerobic membrane bioreactor for wastewater treatment (10) produces both purified water (PW) and biogas by combining a solar still (11) with an anaerobic membrane bioreactor. The solar still (11) receives feed wastewater (WW) and produces condensed water (CW) and concentrated wastewater (CWW) therefrom through solar distillation. An anaerobic process tank (12) receives the concentrated wastewater (CWW) from the solar still (11) and produces digested waste sludge and a process liquid (PL) therefrom through anaerobic digestion. A membrane tank (20) receives the process liquid (PL) from the anaerobic process tank (12), and also receives the condensed water (CW) from the solar still (11). Through membrane filtration, the membrane tank (20) produces purified water (PW) and retained wastewater (RWW). The retained wastewater (RWW) is recirculated back to the anaerobic process tank (12).

Abstract: A pool skimmer is disclosed that comprises a base component comprised of a bar with a U-shaped net component secured to it. The net component measures two to three feet wide and is comprised of fine, stainless-steel microns. A flexible, telescopic handle is then secured to the base component. The base component is placed inside of the swimming pool and comprises a flotation system to allow the device to be positioned halfway above the water level. The U-shaped net allows a user to capture small bugs, leaves, or other unwanted debris within the swimming pool quickly and efficiently.

Abstract: A pool filter protection device includes a hood that is shaped to define a dome which can be placed over a housing for a pool filter. The hood has a hole extending through the hood to accommodate a pressure gauge on the housing. The hood is comprised of an opaque material to protect the housing from ultraviolet light thereby inhibiting the housing from being degraded by sunlight. The hood is comprised of a fluid impermeable material to inhibit fibers from the housing from irritating skin of a user when the user is servicing the pool filter. A cover is removably attachable to the hood has the cover is aligned with the hole and the cover is comprised of a mesh material to facilitate the pressure gauge to be visible to the user through the cover.

Abstract: A method of maintaining a cooling system includes the steps of introducing an ion exchange resin into a cooling path, performing ion cleaning of a coolant in the cooling path with the ion exchange resin, and adding an additive to the cooling path after removing the ion exchange resin from the cooling path.

Abstract: The present application relates to biofiltration materials for filtering a fluid. More specifically, the present application relates to a biofilter material comprising consolidated organic material, and use of such biofilter material for wastewater treatment. Provided is a biofilter bloc for wastewater treatment comprising a porous consolidated assembly of at least 20% w/w of organic materials, and wherein the consolidated assembly shows a density of about 35 kg/m3 to about 275 kg/m3.

Abstract: Systems and methods for wastewater treatment are described. In some embodiments, a wastewater treatment system may include a container configured to receive and store at least a portion of incoming wastewater during a digestion process that generates biogas and a biogas burner. The biogas burner may be arranged to receive and burn at least a portion of the biogas generated by the digestion process. The system may be configured to heat solids separated from the wastewater such that: (i) the solids separated from the wastewater are maintained at a temperature of at least 70° C. for at least 30 minutes; and/or (ii) a water content of the solids separated from the wastewater is less than 15% by mass.