摘要:
A method measuring a rate of fouling caused by a heat flux through the surface subjected to electrochemical polarization. The method includes the steps of: providing a piezoelectric microbalance comprising a piezoelectric material with electrodes disposed thereon; exposing the working electrode of the microbalance to a flowing liquid, the liquid containing at least one fouling forming species; maintaining the liquid at a constant first temperature; maintaining the liquid at required hydrodynamic conditions; applying either a constant heat flux through the microbalance resulting in its working electrode having a variable second temperature or applying a variable heat flux through the microbalance resulting in its working electrode having a constant second temperature; and measuring a rate of fouling on the microbalance surface. The method also comprises measuring the surface density and heat transfer resistance of the deposit independently, thereby the corresponding ratio can be determined contributing to the deposit identification. The working electrode of the microbalance can be subjected to an electrochemical polarization in a wide range to systematically simulate the conditions of heat exchange surface produced by corrosion or other electrochemical processes. The possibility to apply electrochemical polarization, cooling or heating flux in the direction opposite to that causing fouling can be used to clean the immersed microbalance surface in-situ.
摘要:
Methods and systems for on-site generation of peracid chemistry, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions, are disclosed. In particular, an adjustable biocide formulator or generator system is designed for on-site generation of peroxycarboxylic acids and peroxycarboxylic acid forming compositions from sugar esters. Methods of using the in situ generated peroxycarboxylic acids and peroxycarboxylic acid forming compositions are also disclosed.
摘要:
A chemical product dispenser includes one or more timing features. The chemical product may include cleaning, sanitizing, disinfecting, or other chemical products typically dispensed using a conventional spray bottle or other chemical product applicator used in the cleaning industry. The timed dispenser includes a timer and one or more indicators that are activated when one or more predetermined periods of time (such as a contact time or cure time) have elapsed. A timed dispenser audit system further monitors and analyzes use of the timed dispensers throughout one or more facilities, and may generate reports based on the analysis.
摘要:
An apparatus and method for configuring product packaging and removal of the packaging from a product is disclosed. The labeled product packaging includes a shrink wrap packaging adapted for sealing around a product. A predefined point of failure is configured in the packaging and includes a failure mode for when pulled in at least one direction. A label is sealed to the packaging and adhered to the predefined point of failure in covering relation over the predefined point of failure. Lifting the label from the packaging tears open the packaging starting at the predefined point of failure so the product can be removed from the packaging.
摘要:
A chemical product dispenser includes one or more timing features. The chemical product may include cleaning, sanitizing, disinfecting, or other chemical products typically dispensed using a conventional spray bottle or other chemical product applicator used in the cleaning industry. The timed dispenser includes a timer and one or more indicators that are activated when one or more predetermined periods of time (such as a contact time or cure time) have elapsed. A timed dispenser audit system further monitors and analyzes use of the timed dispensers throughout one or more facilities, and may generate reports based on the analysis.
摘要:
Methods and systems for on-site, continuous generation of peracid chemistry, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions, are disclosed. In particular, an adjustable biocide formulator or generator system is designed for on-site generation of peroxycarboxylic acids and peroxycarboxylic acid forming compositions from sugar esters. Methods of using the in situ generated peroxycarboxylic acids and peroxycarboxylic acid forming compositions are also disclosed.
摘要:
An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.
摘要:
A solid chemical product is dispensed to prepare a requested amount of a use solution having a requested concentration of the chemical product. In some examples, a target amount of a diluent and a target amount of the chemical product required to prepare the requested use solution are determined. The target amount of the diluent is dispensed into a container. At least some of the diluent in the container is applied to the solid chemical product to create a resultant use solution, which is directed back into the container. The diluent from the container is applied to the chemical product until the amount of the use solution in the container satisfies the requested amount. In some examples, the target amount of the diluent and the target amount of the chemical product are measured by weight.
摘要:
An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.
摘要:
An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.