A turbine engine cleaning system includes a foam generator configured to generate foam, from a liquid detergent, to clean a turbine engine. The turbine engine cleaning system also includes an effluent capture and detergent regeneration sub-system having an inlet configured to receive an effluent from the turbine engine, processing components configured to process the effluent to regenerate a liquid detergent, and an outlet fluidly coupled with the foam generator to enable transport of the liquid detergent from the effluent capture and detergent regeneration sub-system to the foam generator.

A clean-in-place process may begin with a pre-rinse step in which soil (e.g., contaminants, residual product) is flushed from industrial equipment prior to circulating a cleaning agent through the equipment. To determine when the equipment has been suitably flushed, pre-rinse fluid exiting the industrial equipment and containing soil may be fluorometrically analyzed. A concentration of the soil is determined from fluorescent emissions emitted by the soil itself. Based on this information, the pre-rinse flushing process can be controlled, for example, to minimize water usage, maximize pre-rinse cleaning, or based on any other suitable metric.

A foam-rich instant cleaning block, which is calculated according to parts by weight from: 15-25 parts of an alkaline salt; 15-20 parts of a pH buffer regulator; 5-8 parts sodium lauryl sulfate; 28-30 parts sodium lauroyl glutamate; 20-25 parts of a filler; 0.3-0.5 parts sodium carboxymethyl cellulose; 1-2.5 parts of a preservative, 0-0.5 part of a fragrance, and 0-0.1 parts of a pigment. The foam-rich instant cleaning block is a solid block composition which has evenly distributed components, a density of 1.1-1.25 g/cm.sup.3, and a compressive strength of 130-180 N/cm.sup.2. The product has a simple fabrication process, is convenient to use, and various packaging modes therefor have a preservation effect. The product has a high proportion of cleaning ingredients, and dissolved bath liquid may produce rich and stable foam.

A clean-in-place process may begin with a pre-rinse step in which soil (e.g., contaminants, residual product) is flushed from industrial equipment prior to circulating a cleaning agent through the equipment. To determine when the equipment has been suitably flushed, pre-rinse fluid exiting the industrial equipment and containing soil may be fluorometrically analyzed. A concentration of the soil is determined from fluorescent emissions emitted by the soil itself. Based on this information, the pre-rinse flushing process can be controlled, for example, to minimize water usage, maximize pre-rinse cleaning, or based on any other suitable metric.

A method of cleaning highway and road construction equipment is disclosed.

The aim of the invention is to improve the cleaning power of washing and cleaning agents, especially with regards to bleachable stains, while avoiding any damage to the textile treated with said washing and cleaning agents. This is achieved by an aqueous washing liquid in a device for cleaning textile substrates, containing a plurality of water in-soluble solid particles and a mediator compound, which can produce an oxidizing bleaching agent, in an electrochemical cell using electric voltage in the washing liquid.

A parts-washing method is described. The method comprises: (a) contacting a part with an aqueous liquid cleaning composition in a contact zone at a temperature of less than 45 degrees C., wherein the aqueous liquid cleaning composition comprises at least one alkoxylate surfactant; (b) passing at least part of the aqueous liquid cleaning composition from the contact zone to a separation housing; (c) separating the aqueous liquid cleaning composition in the separation housing to form an upper oily phase, an intermediate aqueous phase and a lower particulate phase; and (d) withdrawing at least a portion of the intermediate aqueous phase for use as the aqueous liquid cleaning composition in the contact zone.