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In the social sciences and life sciences , a case study is a research method involving an up-close, in-depth, and detailed examination of a subject of study the case , as well as its related contextual conditions. Case studies can be produced by following a formal research method. These case studies are likely to appear in formal research venues, as journals and professional conferences, rather than popular works. The resulting body of 'case study research' has long had a prominent place in many disciplines and professions, ranging from psychology, anthropology, sociology, and political science to education, clinical science, social work, and administrative science. In doing case study research, the "case" being studied may be an individual, organization, event, or action, existing in a specific time and place.
Waste-to-energy project has exceeded even the high effluent quality targets originally set for the job. DMPI , has exceeded even the high effluent quality targets originally set for the job. The Global Water Engineering GWE wastewater treatment installation at the Cagayan de Oro pineapple canning plant has achieved 93 percent organic pollution COD removal in its anaerobic reactors, producing in the process enough green energy methane rich biogas to power two 1. The effluent of the anaerobic digestion step is further polished in an activated sludge type final treatment step to satisfy the local DENR discharge effluent standards. DMPI -- which accounts for about 10 percent of the world's annual production of processed pineapple products -- will benefit from environmentally clean electricity to replace fossil fuels typically used in electrical power plants.