Abstract: A system and method for purifying an aqueous contaminated fluid from colloidal contaminants using a closed-loop feedback control system are disclosed. Contaminated fluid flows into a mixer and mixed with a purifying agent, such as diatomaceous earth, to facilitate metathesis reaction between the purifying agent and the contaminants. The purifying agent entraps the contaminants, and is subsequently removed in a separator into sediments. An estimation of the amount of the purifying agent to dispense is performed using pre-defined equations or look-up tables stored in the database, including relationship between the concentration of contaminants in the fluid and the concentration of the added purifying agent. An automated feedback control is applied to fine tune the purification process into compliance with regulations. High accuracy of measurements is ensured by selecting the same material for both the purifying agent and the trapping medium of analyzers, and additionally by the design of the analyzers.

Abstract: A system and method for purifying an aqueous contaminated fluid from colloidal contaminants using a closed-loop feedback control system are disclosed. Contaminated fluid flows into a mixer and mixed with a purifying agent, such as diatomaceous earth, to facilitate metathesis reaction between the purifying agent and the contaminants. The purifying agent entraps the contaminants, and is subsequently removed in a separator into sediments. An estimation of the amount of the purifying agent to dispense is performed using pre-defined equations or look-up tables stored in the database, including relationship between the concentration of contaminants in the fluid and the concentration of the added purifying agent. An automated feedback control is applied to fine tune the purification process into compliance with regulations. High accuracy of measurements is ensured by selecting the same material for both the purifying agent and the trapping medium of analyzers, and additionally by the design of the analyzers.

Abstract: A fluid contamination analyzer has a sample cell containing a trapping medium capable of trapping contaminants suspended in the aqueous fluid flowing through the trapping medium, a light source for illuminating the trapping medium to cause the entrapped contaminants generate a secondary radiation indicative of the identity and quantity of the contaminants, and a photodetector for receiving the secondary radiation. The fluid contamination analyzer has a reflective shell in the form of an ellipsoid extending at least partially around the sample cell and the detector, the sample cell being positioned at one of the focal points of the ellipsoid, and the photodetector at the other point of the ellipsoid to receive the secondary radiation reflected by the reflective shell.

Abstract: A method for ultra-analysis of water for trace impurities. An effective trapping media functions by binding gels that carry ultratrace analytes on their surfaces.