Diseño de una planta de tratamiento de agua residuales con un vermifiltro para la empresa de rastro.

Abstract

The objective of the work was to define the design of a wastewater treatment plant for the EMRAQ-EP with the presence of a vermifilter, develop conceptual and basic engineering through the design, and perform a cost-benefit analysis for the both the design and operation of the plant. Extensive research was made to select the proper process, design, and alternatives for each equipment. It is considered that a convenient wastewater treatment requires a solid-retainment screen system, an equalization tank, a grease interceptor and a vermifilter system. Additionally, to treat the sludge generated, a solid-collection system, a crushing system, a pasteurization system and anaerobic biodigestion system must be used. To establish the basic and conceptual engineering of the process, the BFD, PFD, P&ID and Layout diagrams were prepared along with simulated 3D images of the entire plant. The entire system of vermifilter modules were considered as the main process in order to allow the reduction of the organic load below the permissible limit of the current standard. With the elaborated design, this plant will work 24 hours a day, 7 days a week, treating 620 m3/d of residual water and 16 528,07 kg/d of solid waste. The cost for treating the waste generated by the EMRAQ-EP was established at 0,52 USD/m3.