The technology relates to an apparatus, methods and applications which take readings and samples in contaminated bodies of water at desired locations and depths. The apparatus is a remote control boat or similar apparatus that can travel on the surface, partially submersed or fully submersed. Onboard remote control instruments read pH, temperature, conductivity, salinity, turbidity, total dissolved solids, dissolved oxygen, oxidation-reduction, ammonia, nitrate, phosphate as well as algae and chlorophyll levels. It can also perform sludge blanket mapping and take water or sludge samples at different depths of the water column or at the bottom of the body of water. The data obtained permits to evaluate the health of a contaminated body of water to develop appropriate bioremediation procedures and monitor progress. The apparatus can also deliver the necessary bioremediation products. The danger for humans to navigate on contaminated waters is avoided with the remote control apparatus.

A water quality management method for performing at least one of a quantitative analysis and a qualitative analysis of fine particles contained in water to be analyzed that includes connecting a filtration device provided with a fine particle capturing membrane for capturing fine particles to a flow pipe through which the water to be analyzed flows, allowing the water to be analyzed to flow from the flow pipe and through the fine particle capturing membrane attached to the filtration device for a predetermined period of time to capture fine particles contained in the water to be analyzed to form a fine particle capturing membrane sample, and performing at least one of a quantitative analysis and a qualitative analysis of the fine particle capturing membrane sample of a target water flow period at an arbitrary timing.

Provided herein are devices, kits, systems, and methods for collecting samples for analytical analysis and the safe disposal of sample collection devices after their use. The devices, kits, systems, and methods find use, for example, for disposing of biohazard materials by users in settings that may not be equipped with the professional biohazard disposal systems of laboratories, hospitals, and medical clinics.

A method and system for measuring and treating fluid streams having particles therein is disclosed. A sample of the fluid stream is obtained and processed to remove large particles, to obtain an aliquot of the fluid stream with some particles therein. A parameter in the aliquot is measured that relates to quantity and/or charge of the particles. The aliquot was found to be representative of the whole fluid stream, so when the parameter deviates from a desired value, this indicates that particles in the fluid stream require treatment. The method and system can further include treating the particles in the fluid stream until the measured parameter in the aliquot returns to the desired value.

Methods, apparatus, and systems are provided for detecting and removing microplastics from wastewater effluent. Both, automatic/remote and manual monitoring and sampling components are included to detect the presence of microplastics. The automatic monitoring and sampling component includes a TSS sensor and associated apparatus calibrated to account for non-plastic solids present in the wastewater and, thereby, more accurately determine the presence of microplastics. Efficient separation and removal of microplastics from wastewater effluent is performed by a specialized capture net apparatus having multiple sized mesh components and optional diffuser devices which perform size exclusion filtration of microplastics from the water. In an exemplary embodiment, the methods generally include diverting treated wastewater effluent from a wastewater treatment facility's main line into a wastewater sampling mechanism via an intake pipe, and then into a solids monitoring and separation mechanism which includes the specialized capture net apparatus.

An apparatus includes a piston cavity, a piston insertable in the piston cavity, and at least one flow cavity. Each flow cavity is inserted in the piston, alongside the piston cavity such that the flow cavity has a connection with the piston cavity, or between the piston and a wall of the piston cavity by means of one or more differences in cross section between the piston and the piston cavity, and the flow cavity is in contact with a liquid substance being processed. The piston moves back and forth inside the piston cavity and causes with its movement a flow of the liquid substance in each flow cavity in connection with measuring the liquid substance.

A silty floating mud collection device, which includes a drive cylinder, an outer sleeve, a sampler barrel, an lug cover plate, a turning cover, a control ring and a control rod, where the drive cylinder includes a cylinder liner, a piston and a piston rod; the outer sleeve is fixedly connected below the cylinder liner; the sampler barrel is detachably installed inside the outer sleeve; the lug cover plate is fixedly connected to a lower end of the piston rod, and can close an upper-end opening of the sampler barrel; the turning cover is turnably installed at a lower end of the outer sleeve, and can close a lower-end opening of the sampler barrel; the control ring is located below the sampler barrel, and is used to block the turning cover which is in an open state; and an upper end of the control rod is connected to the lug cover plate, and a lower end of the control rod is connected to the control ring.

An automated active clay analyzer apparatus for analyzing active clays in a mineral slurry in a vessel or passing through a conduit, comprising a controller operable to manage the operations associated with the apparatus; an automatic sampler coupled to the vessel or conduit and operable to extract a sample of a determined volume of the slurry from the vessel or conduit, the automatic sampler being under control of the controller; at least one fluid delivery device under control of the controller and operable to deliver a known volume of water and a known volume of cationic dye into the sample; a mixing chamber that receives the sample; an agitator operable to agitate the sample, the water and the cationic dye in the mixing chamber to produce a diluted sample mixture; an automatic filter operable to filter the diluted sample mixture to produce a filtrate; and a spectrophotometer having an optical flow cell that receives the filtrate from the automatic filter and is operable to measure a spectra absorbance of the filtrate in the optical flow cell using at least one wavelength to obtain spectra absorbance data of the filtrate that may be used to control the processing of the mineral slurry or other aspects of a mineral processing operation related to the mineral slurry in near real time.

Low or no disturbance sampling can be accomplished such as through a single-platform aquatic species and habitat sampling system with data integration and rapid processing capabilities that can address the need for sampling at variable depths over varied habitats, along with the simultaneous collection of linked physical and biological data. The platform may be based on a 24-36 foot boat, and may include a net mouth opener brace for an adjustable concentrator net and smaller drift net which may be attached to an adjustable sample chamber, perhaps containing variable mesh capture nets as well as cameras, water sampling equipment, and water quality sensors integrated with a fish finder, GPS, and other monitoring and data recording equipment. The depth of the net mouth opener brace and sample chamber may be adjustable using a depth control.

A device comprises a contact reaction chamber, a circulating water inlet, a clear water basin, a circulating pump, a circulating water outlet, a solid phase extractant collecting tank, a magnetic holder, an electromagnet, a solid-liquid separation area, a drain valve, a wall sprinkling water inlet, and a wall sprinkling pipe, wherein, the contact reaction chamber is in a conical shape, and utilizes hydraulic power to perform stir to ensure no dead corner exists during contact stir; the obconical solid-liquid separation area increases the action area between a magnetic solid phase extractant and the electromagnet; the solid phase extractant collecting tank is in a downwards protruding dish shape to prevent the solid phase extractant from losing.