Abstract: An integrated method for clearance, collection and capture of internal pollutants and algae at the bottom of a lake include the following steps: selecting areas where the pollution level is high, and organic or inorganic particulate matter is prone to accumulation and carrying out trenching operations at the bottom of the lake to form a plurality of traps; and removing the sludge and algae inside the traps and clearing the sediment inside the traps, for subsequent internal pollution control when the surface-layer sludge on both sides of the traps almost fills up the traps. This method makes use of the hydrodynamic disturbances of waves formed by natural wind energy and lake currents to continuously transport sludge with a high pollution level and a small specific gravity and algae in the surface layer of the lake bottom, which are rich in organic debris, to artificially built traps.

Abstract: A method and apparatus include a first impermeable side wall disposed within a ground and a second impermeable side wall disposed within the ground. The apparatus even further includes a third impermeable gate wall disposed within the ground, the third impermeable side wall including a third height that is shorter than both a first height and a second height of the first and second impermeable side walls, a first end of the third impermeable side wall being coupled to a second end of the first impermeable side wall, and a second end of the third impermeable side wall being coupled to the second end of the second impermeable side wall.

Abstract: A water treatment system is provided. The system includes a container holding a reactant liquid within the container. The system further includes an electrode capsule removably retained within the container and submerged in the reactant liquid. The electrode capsule operates to generate reactant gas by operating within the reactant liquid. The system includes a cap releasably coupled to an opening of the container. The cap includes a nozzle that allows flow of reactant gas out of the container to treat an amount of water. The use of the system operates to treat water for particular applications and controlling pH level range and/or alkalinity for each particular application.

Abstract: Disclosed are devices, systems and methods for operation and control of gravity-fed fluid flows in water and wastewater related systems. The disclosed flow control system uses gravity to provide a flow of a fluid from a fluid source and a motorized flow control device fluidically coupled to the fluid source to control a defined flow rate of the flow by changing a position of an internal volume of the flow control device through which the fluid flows relative to a fixed level of the fluid in the fluid source. The disclosed devices, systems and methods can be used in a wide variety of systems for environmental and low-energy demand applications such as, for example, a wastewater treatment system to control a flow of wastewater in the system.

Abstract: Wastewater processing modules that include an interior surface defining an interior volume, one or more inlets configured to receive wastewater into the interior volume, one or more outlets configured to exhaust processed water from the interior volume, one or more flow-deflecting baffles positioned within the interior volume fluidly between the inlet(s) and the outlet(s) and that divide the interior volume into a plurality of fluidly connected sections, and a purification medium at least partially filing the plurality of fluidly connected sections. The flow-deflecting baffle(s) are configured to channel the wastewater to flow along a plurality of circuitous bulk flow paths through the purification medium. The purification medium is configured to sequester contaminants from the wastewater as it flows through the interior volume along the circuitous bulk flow paths to produce the processed water therefrom.

Abstract: Sewage flowing into a second water branching device is accurately controlled to separate into the following: sewage with a maximum sewage volume that can be discharged into a public water body W, the sewage sequentially passing through a first regulating tank, a first orifice, a second regulating tank, a second orifice, a third regulating tank and a third orifice to flow into a second discharge pipe; and sewage with an excess sewage volume, the sewage overflowing first to third overflow weirs to flow into an inflow pipe for a regulating reservoir.

Abstract: The invention relates to a device for taking up oil from a water surface, comprising a container for receiving the oil and an oil-transporting means, wherein a portion of the oil-transporting means can be brought into fluid communication with the water surface and another portion of the oil-transporting means is disposed within the container, wherein the oil can be transported into the container via the oil-transporting means, wherein the oil-transporting means is formed from a hydrophobic fabric, the surface of which comprises filament-shaped and/or grid-like structures which are designed in such a way that they retain a gas layer on the surface of the hydrophobic fabric under water. The invention further relates to a corresponding method for taking up oil from a water surface.

Abstract: A spliceable and foldable filter element device is provided, which includes a quadrilateral filter element body made of a flexible material. The quadrilateral filter element body is a folding layer having vertical folds. A left frame body and a right frame body are respectively disposed on a left side and a right side of the quadrilateral filter element body, at least one clamping rod is arranged between the left frame body and the right frame body, the clamping rod comprises three or more clamping teeth, the clamping teeth correspond to the folding layer in position, and the clamping rod is clamped with the folding layer through the clamping teeth. The spliceable and foldable filter element device has the advantages of simple structure, low cost, foldability, flexible use, convenience, easy storage and transportation.

Abstract: Systems and methods for harvesting algae is de-scribed herein. The system can include an algae pool containing at least one algae organism; a magnetic particle storage unit adapted or configured to introduce at least one magnetic particle into the algae pool, wherein the at least one magnetic particle binds to the at least one algae organism to form at least one algae conjugate; and an algae harvester, including: at least one magnetic disc adapted or configured to attach, via a surface of the at least one magnetic disc, to the at least one algae conjugate when the at least one algae conjugate comes in contact with the at least one magnetic disc; and at least one scraper adapted or configured to: remove the at least one algae conjugate from the surface of the at least one magnetic disc; and transport the at least one algae conjugate from the algae harvester.

Abstract: Liquid effluent treatment module comprising at least one tank portion suitable for receiving a plurality of packing elements that may receive a biological material, the tank portion defining a horizontal longitudinal axis and comprising at least one effluent feed, characterized in that the tank portion further comprises: ?at least one line for collecting treated effluent arranged in a central part of the tank portion and parallel to the horizontal longitudinal axis, ?at least one air injection line arranged in a lower part of the tank portion, off-centered and parallel to the line for collecting treated effluent so as to give rise to a spiral movement of the liquid effluents.

Abstract: A deep denitrification treatment system for wastewater by A2O based on high-oxygen three-phase contact is provided, including an annular anaerobic treatment device, a uniform water distribution device, a high-oxygen three-phase contact biological oxidative degradation device, a nitrification liquid collecting and shunting device, an annular nitrification liquid anoxic nitrification device and a sludge sedimentation reflux clean water discharge device sequentially connected between a water inlet and a water outlet, where the annular anaerobic treatment device surrounds a periphery of the annular nitrification liquid anoxic nitrification device, the annular nitrification liquid anoxic nitrification device surrounds a periphery of the sludge sedimentation reflux clean water discharge device, and an upper part of the sludge sedimentation reflux clean water discharge device is sequentially provided with the nitrification liquid collecting and shunting device, the high-oxygen three-phase contact biological oxidativ

Abstract: A sorbent-based oil skimmer is configured to collect oil from an oil layer and passively deposit the oil in an encasing, where the oil can be continuously or periodically removed. The oil skimmer includes an encasing and a sponge that is partially enclosed within the encasing. The sponge has a top sheet in contact with the oil layer and a shell connected to the top sheet, where the shell extends into the encasing. Oil collected by the top sheet is conveyed through the shell, where it is deposited into the encasing under the force of gravity. In some applications, the sponge is manufactured from a silicone-based polymer that has been impregnated with carbonaceous material. The skimmer may optionally include counterweights, ballast tanks, buoyancy adjustment systems and propulsion modules.

Abstract: A wastewater treatment plant and related method comprise a treatment stage including a biological-process substage configured for growing unicellular organisms adapted to reduce contaminants in the wastewater which are dissolved, including at least one of organic matter and nitrogenous matter, by digestion thereof, and which are adapted to floc after digestion and a floc-removal substage downstream from the biological-process substage, relative to the flow of wastewater, and configured for substantially removing the unicellular organisms that have flocked. The treatment stage is configured to form majority and minority flows of treated wastewater, and the minority flow is configured to be recycled upstream of the biological-process treatment substage. The plant includes a heat transfer assembly configured for transferring heat from the majority flow of treated wastewater to the minority flow thereof to increase temperature of wastewater to be treated.

Abstract: A modular system for waste treatment, water recycling, and resource recovery includes a buffer tank to receive and pre-treat raw organic waste, at least one reactor tank configured as an anaerobic bioreactor that receives and digests pre-treated waste from the buffer tank, a membrane module having a membrane configured to filter waste from the digested waste from the at least one reactor tank to produce a permeate, a permeate collection tank configured to collect and store the permeate generated by the membrane module, a pump system having a plurality of pumps, and a control system configured to monitor the flow of waste and to control the pump system to control the flow of waste between the buffer tank, the at least one reactor tank, the membrane module, and the permeate collection tank.

Abstract: The present disclosure provides a scum absorbing device for absorbing scums in water. The scum absorbing device includes a front absorbing body, the front absorbing body includes: a first front layer defining a plurality of first via holes; a second front layer; and a third front layer, connected between the first front layer and the second front layer, the third front layer is capable of absorbing or capturing scums in water.

Abstract: A stormwater runoff treatment substrate includes a lower pyrite substrate layer and an upper biochar substrate layer. The lower pyrite substrate layer includes pyrite, oyster shell powder, and sandy materials in a volume ratio of 10:5:85. The upper biochar substrate layer includes biochar or activated carbon, organic nutrient soil, and sandy materials in a volume ratio of 20:3:77.

Abstract: A pressure detector is provided that includes a case connectable to a flow route for liquid, and a membrane member attached inside the case and with which a liquid-phase portion to be supplied with the liquid in the flow route and a gas-phase portion to be supplied with gas are separated from each other, the membrane member being displaceable in accordance with a pressure of the liquid supplied to the liquid-phase portion, the pressure detector detecting the pressure of the liquid in the flow route by detecting a pressure in the gas-phase portion with a pressure detection sensor. The pressure detector includes a hydrophobic portion that allows gas to pass through but blocks liquid from passing through, the hydrophobic portion being provided between the gas-phase portion and the pressure detection sensor.

Abstract: The present disclosure provides for methods and systems for separating ultrafine particulate pollutants from aqueous suspensions. The present disclosure provide for methods and systems that can reduce the amount of ultrafine particulate pollutants from aqueous solutions, for example storm water runoff, which are not readily or easily removed using current state of the art techniques. In general, methods of the present disclosure provide for removing a portion of target ultrafine particulate pollutants using magnetic nanoparticles, which form aggregates with the ultrafine particulate pollutants. After a time period a magnetic field is applied and the aggregate can be separated from the aqueous suspension. Subsequently, the aggregates can be broken down and the magnetic nanoparticles recycled or reused while the ultrafine particulate contaminants are further processed, recycled, or disposed of.

Abstract: An evaporator system used for the production of maple syrup. The evaporator system comprises at least one receptacle for receiving and processing maple water destined to be transformed, a combustion chamber for burning biomass, and a detector of temperature of the combustion.

Abstract: The present disclosure generally relates to a system for monitoring and/or controlling the delivery of one or more organic carbon compounds to a wastewater treatment system. The system comprises a bio-electrochemical sensor to monitor metabolic activity of a population of exo-electrogenic bacteria and provide an electrical output corresponding with the metabolic activity, the bio-electrochemical sensor comprising an electrode pair and a power source to deliver a voltage across the electrode pair, and an electrical output analyzer to analyze the electrical output and correlate the electrical output with a value representing the amount of the one or more organic carbon compounds in the wastewater treatment system. A method and sensor for monitoring and/or controlling the delivery of one or more organic carbon compounds to a wastewater treatment system are also provided.