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For more information about wastewater collection and treatment operations, visit. We’re not there yet, but we are definitely a few steps closer.”ĭevelopment of the new operator apprenticeship guidelines is a component of the broader Operator Initiative, a program established by WEF and its member associations to develop the capabilities of wastewater system operators and help raise their visibility as frontline public health professionals. “If an operator is certified in one state under the federal standards, he or she should be able to work just as easily in a neighboring state. “We believe that widespread adoption of the national standards will lead to more consistency in training and certification, an elevated profile for the operator profession and greater opportunities for reciprocity,” said Radke. The new standards are a model for developing local apprenticeship programs registered with the Office of Apprenticeship (OA) or a State Apprenticeship Agency (SAA) for the wastewater treatment plant operator occupation. DOL announced the new guidelines to its state divisions, which will work with employers and local sponsors to introduce them to wastewater utilities. The new guidelines were submitted on behalf of WEF by Executive Director Jeff Eger on September 24 and accepted by DOL on November 1. Additional instruction focuses on the theoretical aspects of the occupation, such as pumping systems, mathematics and solids management. Industry curriculum is structured around six pillars: orientation and safety, operations, maintenance, quality control, logistics and administration. Work process hours will provide on-the-job experience alongside supervisors and coworkers.
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The National Guidelines for Wastewater Systems Operator Apprenticeship suggests a two-year intensive schedule of 3,520 work process hours and 480 instructional hours. Water professionals from around the country, including individuals who developed recognized operator apprenticeship standards in South Carolina and Wisconsin, were instrumental to bringing the guidelines to the national level, Radke said. “We are delighted that DOL looked to WEF to lead this process, and we could not have seen it to fruition without industry support.” “The development of these new guidelines has really been a team effort,” said Christine Radke, technical and educational program manager for WEF.
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The new guidelines, developed as a joint effort between DOL and the Water Environment Federation (WEF), define minimum educational and on-the-job learning requirements for operators and establish a clear point of entry into the profession. The United States Department of Labor (DOL) recently announced its adoption of new national guidelines for wastewater systems operator apprenticeship programs. Under optimized concoctions, the lap shear strength of PEEK-g-PGMA was significantly enhanced to 15.1 MPa which is seven times higher than that of unmodified PEEK (2.5 MPa).New guidelines establish point of entry to wastewater profession The enhanced performance of the epoxy adhesives was demonstrated by the single-lap shear tests using PEEK-g-PGMA joints. The results showed that (1) the PEEK-g-PGMA is obtained from the photopolymerization under 2 and 8 mW/cm 2 of UV irradiation (2) the long durations of the UV exposure promoted the formation of brushes and (3) the polymerization inhibitor only slightly inhibited the polymerization, but effectively prevented the auto-polymerization of monomer solution during the UV irradiation. The influence of the irradiation duration and the removal of the polymerization inhibitor from the monomer on PGMA grafting are discussed herein. The PGMA-grafted PEEK (PEEK-g-PGMA) was prepared via surface-initiated photopolymerization under 2 and 8 mW/cm 2, respectively.
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This work presents a method to improve the adhesion performance of PEEK with epoxy adhesives through poly(glycidyl methacrylate) (PGMA) grafting.
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Owing to its low surface free energy, the untreated PEEK adherend may exhibit low bond shear strength with epoxy adhesives. Poly(etheretherketone) (PEEK) is a high-performance engineering thermoplastic with high heat deflection temperature.