An excreta sample capture device includes a primary influent pipe that receives influent from a toilet(s) and includes an upstream end and a downstream end. The excreta sample capture device also includes a first valve positioned at the downstream end of the primary influent pipe, and a second valve positioned between the upstream end and the downstream end of the primary influent pipe. In some cases, an excreta sample capture device further includes spray jet positioned above the second valve and a sample extraction vessel located downstream from the second valve. A method of using an excreta sample capture device includes receiving influent in the primary influent pipe, initiating a closing of the first valve, opening the second valve, and capturing a sample of the excreta.

An elemental analysis device includes a heating furnace in which a test sample that is placed in a crucible is heated so that a sample gas is generated from the test sample, an inflow path through which a carrier gas is introduced into the heating furnace, an outflow path through which a mixture gas made up of the carrier gas and the sample gas is led out from the heating furnace, a dust filter that is provided on the outflow path, an analysis mechanism that is provided on the outflow path on a downstream side from the dust filter, and that detects one or a plurality of predetermined components contained in the mixture gas, and a cleaning gas supply mechanism that supplies cleaning gas to the dust filter in an opposite direction from a direction in which the mixture gas is flowing.

The invention relates to a sample collection system for collecting sub-samples from a material stream, the system including a valve arrangement and a static cone splitter, and wherein the valve arrangement is arranged to enable operation of the static cone splitter to collect a non-biased sample of the material stream fed to the static cone splitter under first and second operational conditions, the first operational condition requiring the material stream to be at substantially atmospheric pressure and flowing at a minimum functional flow rate, and the second operational condition requiring the material stream to be pressurised above atmospheric pressure and at a flow rate higher than the minimum functional flow rate. The invention also relates to a static cone splitter for use with the system, together with a cone member for use with the static cone splitter.

An apparatus for in-line monitoring of nitrite content in a metalworking fluid is provided, the apparatus comprising a sample inlet for receiving a sample of a metalworking fluid, a dilution inlet for receiving a dilution fluid, a reagent inlet for receiving a photoactive reagent, a reaction volume for containing a sample mixture in fluid communication with the sample inlet, dilution inlet and reagent inlet, a photometer for monitoring the sample mixture, and a flow control system for controlling fluid flow in the apparatus, to: selectively introduce the sample, the dilution fluid and/or the photoactive reagent from the respective inlets to the reaction volume to form the sample mixture, retain the sample mixture in the reaction volume and discharge the sample mixture from the reaction volume.

Methods and systems are provided for treating the tail gas stream of a sulfur recovery plant. The methods including generating a tail gas stream from a sulfur recovery plant, treating the tail gas stream with a hydrogen sulfide absorption unit and a hydrogen selective membrane unit, generating a stream low in hydrogen sulfide and a stream rich in hydrogen. The hydrogen sulfide rich stream is recycled to the sulfur recovery unit. The hydrogen selective membrane unit includes a glassy polymer membrane selective for hydrogen over hydrogen sulfide and carbon dioxide.

The invention provides a sampling arrangement (105) for sampling from a reactor (50), the sampling arrangement (105) comprising a gas inlet (110), a solvent inlet (120), a solvent compartment (130), one or more multiple-position valves (140), a sampling compartment (150), and an outlet, wherein in a first operational mode (10) the one or more multiple-position valves (140) are configured to provide: fluid contact between the solvent inlet (120) and the solvent compartment (130); fluid contact between the reactor (50) and the sampling compartment (150); and fluid separation between the solvent compartment (130) and the sampling compartment (150); and wherein in a second operational mode (20) the one or more multiple-position valves (140) are configured to provide: fluid contact between the gas inlet (110), the solvent compartment (130), the sampling compartment (150), and the outlet (160).

The present invention is a two-part irrigation system that utilizes both groundwater and rainwater. The first system extracts water from groundwater layers by using extraction pipes filled with nanomilled sand that constantly moves water upwards through capillary action. The second is a rainwater collection and capillary irrigation system. The groundwater irrigation system consists of an external groundwater transport pipe filled with nanomilled sand. This encapsulates an empty internal transport pipe that delivers percolated water. The rainwater irrigation system consists of a collection, storage, filtration, and capillary irrigation system. Rainwater is collected by trays and a water tank, where the water is filtered through a hollow fiber membrane filter. This clean water is used as potable drinking water or for irrigation. The water volume required for irrigation is calculated based on moisture data collected by moisture detection devices. Both systems are solar powered, and are controlled and programmed by the user.

A sample container cap (or “cap”) is configured to be used with a sample container for collecting fluids. The cap has a body and a shutter connected to the body. The cap has a (1) first, open position in which at least one body opening and at least one shutter opening are not aligned and the cap is configured so that fluid cannot readily pass therethrough, (2) second, open position in which the at least one body opening and the at least one shutter opening are aligned and the cap is configured so that fluid can pass therethrough, and (3) third, closed and locked position, in which the at least one shutter opening and the at least one body opening are not aligned and fluid cannot readily pass through the cap, and the cap is configured to not be moved to an open position.

The present invention relates to a method and system for measuring total chloride content in a process product stream. In particular, the present invention relates to a method of measuring hydrogen chloride and organochloride content, in situ, for a gaseous refinery process product stream. This method allows for measurement of hydrogen chloride and organochloride content in a single test method, which allows for optimised performance and maintenance schedules for chloride guard beds used within the refinery process.

Provided is a concentration measuring apparatus, which measures a concentration of a fluid under a high-pressure environment, such as an environment in which a supercritical fluid is provided. The concentration measuring apparatus includes: a concentration meter for measuring a concentration of a first fluid contained in a fluid in the measurement line; a sampling line for transferring a process fluid of a processing space in which a substrate is treated in a high-pressure environment to the measurement line; a control valve for opening and closing the sampling line; a fluid pressure regulator installed downstream the control valve in the sampling line and configured to adjust the passing fluid to a set pressure; and a decompression tank installed between the sampling line and the measurement line.