Abstract: A cleaning system and method remove localized caked or dewatered solids from flat-plate membranes in a sewage treatment plant. The caked sludge on the membranes is removed by intense coherent water sprays directed into the spaces between cartridges of a cassette, without removing the cartridges from the cassette. The sprays can be delivered from the top and/or bottom of the cassette, or the side panels of a cassette can be removed for spraying from at least one side, preferably both sides, using a mechanical device with movable spray bars and motor-driven advancing of the spray bars. In one preferred form of the system the apparatus includes horizontal cutting jets followed by angled cutting jets that further break up and wash away the loosened sludge. Jet diameter, velocity and pressure are controlled so as not to damage the membranes or cartridges but to achieve efficient cleaning.

Abstract: A cleaning system and method remove localized caked or dewatered solids from flat-plate membranes in a sewage treatment plant. The caked sludge on the membranes is removed by intense coherent water sprays directed into the spaces between cartridges of a cassette, without removing the cartridges from the cassette. The sprays can be delivered from the top and/or bottom of the cassette, or the side panels of a cassette can be removed for spraying from at least one side, preferably both sides, using a mechanical device with movable spray bars and motor-driven advancing of the spray bars. In one preferred form of the system the apparatus includes horizontal cutting jets followed by angled cutting jets that further break up and wash away the loosened sludge. Jet diameter, velocity and pressure are controlled so as not to damage the membranes or cartridges but to achieve efficient cleaning.

Abstract: Evaluation of job applicants by academic institution Search Committees is facilitated. Applicants can apply online for vacancies by entering specific information and/or attaching documents. The applicant's information is then organized and displayed for Search Committee Members online. The Search Committee Members can rate each applicant's suitability for the vacancy online based on the applicant's qualifications. The ratings are compiled for the Search Committee chair. A master screen is provided that follows the search process as it progresses the various stages of narrowing the applicant pool. Ratings may be indicated by symbols rather than grades, and the members of the Search Committee may be expanded to include interviewers at an on-campus interview stage.