The invention relates to a device for detecting the quality of a liquid in a supply pipe, in particular for detecting the water quality in a water pipe, comprising a flow cell, which has an inlet opening, an outlet opening and at least one receiving device for the arrangement of at least one sensor. The inlet opening and the outlet opening are provided on a base surface of the flow cell intended for connection to the supply pipe, the inlet opening of the flow cell is connected to an intake pipe, the free end of which is intended for arrangement in the supply pipe, said intake pipe being received displaceably in its longitudinal direction in the flow cell or having an adjustable length, and a liquid pump of a flow of the liquid in the supply pipe is connected to the intake pipe.

Methods and systems are disclosed for optimization of coagulation and/or flocculation in a water treatment process. According to exemplary embodiments, samples are taken from an aqueous liquid and the samples are monitored with an imaging device to capture visual data of particles dispersed or suspended in the liquid. The particles are classified into particle types based on the visual data and a particle size distribution indication is computed for each classified particle type. The particle size distribution indication is then compared to a predetermined particle size distribution value, and in response to a difference detected, dosage of at least one coagulation and/or flocculation agent in the water treatment process can be adjusted.

Disclosed is a device for measuring at least one physical, chemical or biological parameter of a fluid, flowing in a pipe belonging to a fluid-distribution network, the device being installed in a cut on the pipe at the fluid delivery point, the pipe thus including a first section and a second section, the device including at least one sensor provided with a measurement end. The device also includes: a body including an opening forming a flow line, and at least one insertion recess capable of receiving the measurement end of the at least one sensor, the insertion recess opening into the flow line; an attachment unit arranged to connect a first end of the flow line with an end of the first section and a second end of the flow line with an end of the second section, to allow the fluid to flow through the flow line.

A chemical sensor for heavy metal detection is provided. The chemical sensor includes an inlet, a chamber in fluid communication with the inlet, and an outlet in fluid communication with the chamber. A working electrode is provided in the chamber. The working electrode includes a plurality of protrusions extending into a fluid flow path in the chamber beyond a boundary layer of the fluid flow path. The chemical sensor also includes a reference electrode, a counter electrode, and a plurality of contact pads electrically connected to respective ones of the working electrode, the reference electrode and the counter electrode.

A device, method, and processor-readable medium for water quality detection and diversion are disclosed. Water entering a building's plumbing system is tested for impurities before it routes for consumption. Impurities in the water could include bacteria, viruses, chemicals, toxins, fertilizers, minerals, biological weapons, radioactive materials, and radioactive waste. Sensors are located throughout the device to check for impurities in the water as it travels through the building's plumbing. Certain sensors decide how to route the water through various treatments within the device. Treatments to the impure water could include multi-level filtration and heating/cooling cycles for a prescribed time period to reduce impurities below an EPA-approved threshold. If the water still retains impurities after treatment in the device, the device can decide to divert the water out of the building to prevent consumption and illness to building occupants.

In examples, a method of manufacturing a fluid sensing package comprises coupling a semiconductor die to a first set of conductive terminals; positioning the semiconductor die within a socket, a fluid probe extending through a probe orifice in a lid of the socket; positioning a ring of the fluid probe on a fluid sensing portion of the semiconductor die by closing the lid of the socket; and using the fluid probe to apply fluid to an area of the fluid sensing portion circumscribed by the ring.

A flow-through measuring station includes at least one flow cell having a fluid channel. The fluid channel has a fluid inlet and a fluid outlet and is configured to conduct a liquid medium. One or more flow cells each include at least one sensor configured to be contacted with the medium and to determine at least one respective media property. At least one illumination unit is configured to indicate a respective state of at least one sensor. The measuring station also includes a transmitter/measuring transducer which is configured to operate the at least one sensor and the at least one illumination unit, and to determine in each case a state of at least one sensor.

Provided are low flow groundwater fluid sampling systems and related methods of collecting fluid samples, including a low flow pump, flow cell, waste container and a communication device in communication with those components. In this manner, the low flow pump may be controlled to ensure a desired constant flow-rate is achieved, and a remote operator may monitor the status of fluid being pumped to the flow cell with the communication device, such as with a portable electronic device, including a smart phone. The system may alert the operator that fluid is ready to be collected for sampling, including at an off-site laboratory. Particularly useful applications are for monitoring groundwater quality and contamination.

A method for determining the concentration of a compound in ultrapure water is provided. The method includes dividing the ultrapure water into a first part and a second part and decomposing the compound in the first part, so that the first part includes a characteristic substance. The method also includes measuring a first concentration of the characteristic substance in the first part and a second concentration of the characteristic substance in the second part and calculating the difference between the first concentration and the second concentration. The method further includes obtaining the concentration of the compound in the ultrapure water based on the difference.

A device includes a lower reservoir surface, an upper reservoir surface, and a reservoir sidewall extending between the upper and lower reservoir surfaces which together define a reservoir. The reservoir is configured to be completely filled by a liquid such that the liquid forms a column contacting the upper reservoir surface, the lower reservoir surface, and the reservoir sidewall, with a meniscus of the liquid being outside of the reservoir. At least one of the upper reservoir surface and the lower reservoir surface is configured to transmit light.