Materials for binding per- and polyfluoroalkyl substances (PFAS) are disclosed. A fluidic device comprising the materials for detection and quantification of PFAS in a sample is disclosed. The fluidic device may be configured for multiplexed analyses. Also disclosed are methods for sorbing and remediating PFAS in a sample. The sample may be groundwater containing, or suspected of containing, one or more PFAS.

A simulation system for an in-situ column experiment in a groundwater well and a simulation method are provided. The simulation system includes: an experimental column device, a sample taking device, and a sample injection device, where solid remediation agent and/or aquifer sediment are provided within the experimental column device, and is configured to be capable of being arranged in an experimental well and located below a water level; a bottom of the experimental column device is provided with a water inlet, and a top of the experimental column device is provided with a water outlet, where the top water outlet connects to the sample taking device, and the bottom water inlet connects to the sample injection device.

Devices, assemblies, and associated methods are provided for gas sensors. An example device for use with a gas sensor includes a buoyant housing that receives the gas sensor therein, an inlet opening defined by the housing, a pump positioned within the housing, and an outlet opening. The pump is in fluid communication with the inlet opening and the gas sensor in an instance in which the gas sensor is received by the housing. The pump is configured to cause gas received by the inlet opening to be directed to the gas sensor for evaluation, and the outlet opening is configured to discharge gas exiting the gas sensor from the buoyant housing. In an operational condition in which the device is placed in a fluid, the buoyant housing is configured such that at least a portion of the buoyant housing floats above a surface of the fluid.

A sample of a first aqueous liquid phase is drawn from a first one of a plurality of separation vessels in response to determining that a first separation operation in the first separation vessel has completed. First aqueous liquid phase sample data is obtained by analyzing the first aqueous liquid phase sample with at least one sensor. The first aqueous liquid phase sample data is transmitted to an external multiphase flow meter (MPFM) to calibrate, control, or optimize an operation of the MPFM. A sample of a second aqueous liquid phase is drawn from a second one of the plurality of separation vessels in response to determining that a second separation operation in the second separation vessel has completed. Second aqueous liquid phase sample data is obtained by analyzing the second aqueous liquid phase sample with the at least one sensor. The second aqueous liquid phase sample data is transmitted to the external multiphase flow meter. The first separation operation in the first separation vessel and the second separation operation in the second separation vessel are concurrent.

A system separates and in-situ analyzes a discrete sample of multiphase fluid. The system includes a separation vessel having a first inner chamber for separating a discrete sample of multiphase fluid into liquid phases including an aqueous liquid phase and a nonporous liquid phase, and a built-in water analysis unit. The built-in water analysis unit includes an analytical cell disposed inside the first inner chamber of the separation vessel, the analytical cell having a second inner chamber, and at least one probe having a sensing area disposed in the second inner chamber for in-situ analysis of a sample of the aqueous liquid phase that is separated from the discrete sample of multiphase fluid in the first inner chamber and that is channeled to the second inner chamber from the first inner chamber for the in-situ analysis. The second inner chamber is defined inside the first inner chamber.

A water-soil interface physiochemical monitoring apparatus and a reservoir area hydro-fluctuation belt monitoring system based on the same. The water-soil interface physiochemical monitoring apparatus comprises a cylindrical shell, a conical head, a sensor data acquisition circuit, a sealing plug, and a plurality of sensor modules. One end of the cylindrical shell is in sealing connection with the conical head, and the other end is sealed by the sealing plug. The sensor modules are connected to the sensor data acquisition circuit, and are all located in the sealed space of the cylindrical shell. Each sensor module comprises a circuit board, a temperature sensor, a dissolved oxygen sensor and a conductivity sensor, which are combined together by casting using resin, and the temperature sensor, the dissolved oxygen sensor and the conductivity sensor are separately connected to the circuit board.

Provided are a method and device for dynamically monitoring suspended matter based on an annular interleaving array. An annular multi-band interleaving array used thereby can be combined with the Doppler effect to on-line measure the concentration and linearity distribution of the suspended matter and a three-dimensional flow velocity of suspended water, thus realizing real-time monitoring of water quality. A frequency range needing to be measured is divided into different frequency bands, and different transceiving transducer arrays are used to transmit and receive measurement signals, so that the concentration and linearity distribution of various suspended matter with an extremely large linearity range can be obtained through one measurement.

A method of retrieving a mobile platform from a tank at least partially filled with a non-conductive, energetic substance includes configuring the mobile platform to include at least a retrieval system including a buoyant body, an electrically conductive member, and a tether. The tether electrically isolates the buoyant body from the enclosure. The method further includes the steps of releasing the buoyant body to convey the tether toward a surface of the non-conductive, liquid energetic substance; conveying an electrically conductive cable to the electrically conductive member using the tether; electrically connecting a voltage neutralizing end of the electrically conductive cable to a voltage differential neutralizing body in a spark inhibiting ambient condition; electrically connecting a mobile platform end of the electrically conductive cable to the electrically conductive member of the mobile platform while the electrically conductive member is below the surface of the non-conductive, liquid energetic substance.

An array system of passive solar aquaponic and mushroom production structures, each having a glazing on a sun facing side to maximize winter sunlight; a plant growing area; a mushroom growing area; a water wall thermal mass integrated and disposed between the plant and mushroom growing areas; a fish tank; a saltwater basin under the plant growing holding saltwater; a natural air ventilation system providing misted air to the mushroom growing area and receiving O2 from the plant growing provided to the mushroom growing area, and CO2 generated by the mushroom growing area provided to the plant growing area; and saltwater channels delivering saltwater to the saltwater basins from a saltwater source, and which is evaporated by solar heat generated by the plant growing areas in order to generate freshwater.

Systems, methods, and apparatuses for detecting and collecting fluids released into a body of water are disclosed. Particularly, detection and collection of a fluid released during a petroleum exploration or production operation are disclosed. A released fluid may be detected using sensors on a submersible vehicle (SV) or a plurality of SVs operating in concert. A detected released fluid is collected in storage tanks onboard of the one or more SVs or in an external tank coupled to the one or more SVs.