Systems for removing debris from a water reservoir include a moveable floating skimmer device positioned within the water reservoir and configured to receive floating debris, the skimmer device comprising an adjustable weir for capturing the debris and a receptacle for containing the debris; a discharge pipe connected to the skimmer device, the discharge pipe configured to receive the debris and a first portion of water from the receptacle in the skimmer device; a debris separator fluidly connected to the discharge pipe and configured to receive the debris and the first portion of water from the discharge pipe, the debris separator further configured to separate the debris from the first portion of water; a pump positioned between the discharge pipe and the debris separator and configured to transport the debris and the first portion of water in the discharge pipe to the debris separator via a pump outlet; and a recycle line connected to the debris separator and configured to return a second portion of water that exits the debris separator back to the water reservoir.

In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to methods for removing deicing salt ions from water. In one aspect, the method involves contacting the water with deicing salt ions with a device comprising an ionic binding material present in a porous housing. Additionally, described herein are methods for recharging the device so that the device can be re-used multiple times.

A stormwater treatment device may include a chamber having a floor and a wall; an inlet formed in the wall that receives stormwater into an inlet side of the chamber; an outlet formed in the wall that discharges stormwater from an outlet side of the chamber; an enhanced settling device positioned in the outlet side of the chamber; a flow diverter plate in a lower portion of the chamber; and an outlet control diverter positioned proximate to the outlet. Stormwater is received by the inlet in a first flow direction, flows from the inlet side to the lower portion of the chamber in a second flow direction, flows through the enhanced settling device to an upper portion of the chamber in a third flow direction, flows through the outlet control diverter in fourth flow direction, and is discharged by the outlet in a fifth flow direction.

Provided herein are an adsorbent and method of treating water using the adsorbent. The adsorbent includes thermally- and chemically-treated lignite coal. The method includes contacting wastewater with the treated lignite coal.

A system for sanitizing water in a container is disclosed. The system includes a sanitizing chamber, separate from the container, sized to hold a small portion of the water from the container. A first conduit conveys water from the container to the chamber. A second conduit conveys water from the chamber to the container. A pump moves water from the container, through the first conduit into the chamber and from the chamber, through the second conduit into the container. A heater heats the water in the sanitizing chamber to a temperature and for a time sufficient to destroy or deactivate undesirable microorganisms. The first and second conduits each comprise at least one heat exchanger whereby water in the first conduit is heated by the water in the second conduit and water in the second conduit is cooled by water in the first conduit.

A surface water mitigation structure suitable for use in the storage and treatment of contaminated surface water runoff. The runoff is processed through a multi-layered filtration and treatment system wherein the first layer is one or more permeable layers that is pervious enough to allow liquid runoff to pass through it and into a porous storage medium second layer that includes one or more remediating agents, and wherein the effluent from the surface water mitigation structure can be discharged to the ground, the surface, and/or a drainage system reduced or free of contaminants.

This disclosure provides new filtration systems, filtration media, and processes for removing per- and polyfluoroalkyl substances (PFAS) from PFAS-contaminated water. The filtration systems, filtration media, and processes use a combination an activated carbon and a calcium sulfate which are mixed and immobilized or contained within a filter component such as a filter housing which provides a flow path for the contaminated water. This combination of components can remove PFAS contaminants to concentrations below the level of detection and provides other unexpected benefits as disclosed herein.

A method for remediation of environments contaminated with halogenated organic compounds, in particular per- and polyfluoroalkyl substances, the method comprising the steps of placing a plurality of electrodes in the contaminated environment, applying an electric direct current between said electrodes, providing at least one electrically conductive reductant for halogenated organic compounds, obtaining information indicative of the electrical resistance between said electrodes, analyzing said information to detect whether at least one of said electrodes introduced a lower electric current into the contaminated environment compared to the remaining ones of said electrodes and bringing said reductant into or in close proximity to the contaminated environment in response to said detection such that the electrical resistance to the contaminated environment of at least one of said electrodes identified to introduce a lower electric current into the contaminated environment is decreased.

A method of conditioning wastewater includes flowing wastewater into and through a first fluid tube and flowing a heat transfer fluid into and through a second fluid tube. The heat transfer fluid entering the second fluid tube has a different temperature than the wastewater entering the first fluid tube. The first fluid tube and said second fluid tube are positioned within a first casing that is surrounded by insulation. The first casing and the insulation are positioned within a second casing. The wastewater in said first fluid tube and said heat transfer fluid in said second fluid tube are arranged to allow heat transfer between the wastewater in said first fluid tube and the heat transfer fluid in said second fluid tube.

A water inlet protection system and apparatus for removing sediment and/or chemical from water or other fluids is provided. The system may include a filtration material that is configured to be water permeable and to collect sediment within the water. The system may be configured to be removably secured to various types of storm drains or water inlets. The system may include a frame configured to be removably attached to a storm grate. The frame may also include a plurality of tabs extending from the frame and be slidably adjustable. The system may also include an s-clip member or magnets for removably securing the filtration material to a storm drain or water inlet. Furthermore, the water inlet protection system may include one or more over-flow protection openings. The over-flow protection openings may include a raised member or barrier to regulate the water level where over-flow occurs.