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  • Evaluation of Two Organoclays, Clinoptilolite and Hydroxy-Apatite as Sorbents for Heavy Metal Removal from Water
    A series of column tests where performed with four sorbent media to determine their effectiveness for the removal of heavy metals from water. The sorbents are an organoclay, an organoclay/anthracite blend, clinoptilolite (a zeolite), and hydroxy-apatite. Heavy metals studied were Ni, Cr, Cu, Cd
  • Hard-Coating Removal That s Easy on the Environment
    8226; Abrasive water-jet systems use CNC programming for repeatable removal of tough coatings. * AWJ is a mechanical process that does not generate toxic by-products. * Removing coatings with AWJ can mean less rework, longer part life, and a greener process. Cool coatings let engines run hotter
  • Aqueous Degreasing of Metal Parts
    Ultrasonic cleaning is required in the metalworking industry for the removal of oils, greases, metalworking fluids, abrasive polishing compounds, and particulate contamination such as metal fines and shop soils. Cleaning agents based on CFC-113 azeotropes and chlorocarbon solvents, such as 1,1,1
  • Removal of Volatile Metals from Corrosive Gases by a New Purifier
    surface. Figure 1: Apparatus for testing removal of volatile Thus, it is essential to metal species in corrosive gas remove these impurities from sensitive processes such as front-end etch that require stringent control of metals. Ultrahigh-purity gases are in demand in the semiconductor industry
  • Paint Removal
    tools that are not properly painted, causing customer complaints. The purpose of paint on a machine tool is two-fold. First it protects the metal surfaces from corrosion and, second, serves as decor to add to the appeal of the machine. For many years the standard color for a machine tool was gray
  • Using a buffered rinse solution to minimize metal contamination after wafer cleaning
    thinner gate oxides and metal films, will require different types of cleaning chemistries that are both environmentally friendly and have controllable process characteristics (etch rate, particle removal, and rinsability, for example). It is also critical that cleaning solution residuals be removed
  • Plastic Media Blasting for Powder Coating Removal
    An effective method for stripping all metal types, plastic media blasting removes all or a portion of a cured powder coating from the surface of a part without causing damage. This article defines plastic media blasting and compares it to several other stripping methods used in powder coating
  • Lead (Pb):In the Metalworking Environment
    or grinding lead containing metals, melting pure lead, molding, soldering, removal or encapsulation of lead and/or lead containing compounds. There have even been cases where lead babbits have fallen into a metal removal fluid sump or system leading to significant buildup of lead content

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