Jorge Eliecer Velasco, Andrés Felipe Molano, Laura Pramparo
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Removal of organic matter present in wastewater of a pharmaceutical plant using a RBC (rotating biological contactor)
A RBC (Rotating Biological Contactor) system is a technology using a biological process by which microorganisms present in wastewater arefixed to partially-submerged parallel rotating discs forming a biofilm through bioaugmentation processes. This technology allows for the removal of contaminating organic matter from the water improving treatment processes. In this research work, a laboratory-scale RBC composed of four discs submerged approximately 40 % in a volume of 1 l (0.001 m3) was used for the purpose of reducing high levels of COD and BOD contained in the wastewater of a pharmaceutical plant with the aid of two different microbial consortiums. An initial characterization of COD and BOD of the wastewater sample was carried out in order to compare with six samples obtained from the reactor in operation. A maximum COD removal of 2 560 mg O2/l was obtained which, although very high, is beyond of the permissible limits allowed by Colombian law ( ordinance 0631 of 2015) but is significant because it represents an efficient removal percentage of 99.67 % with respect to the values obtained at the initial characterization
期刊介绍:
Published by the Mexican Institute of Water Technology, Water Technology and Sciences (Tecnología y ciencias del agua) is a highly specialized journal which reflects two important characteristics:
The interdisciplinary nature of its articles and notes.
The international scope of its authors, editors, reviewers, and readers.
It constitutes the continuity of the journal Irrigación en México (Irrigation in Mexico) (1930-1946); Ingeniería hidráulica en México (Hydraulic Engineering in Mexico) (1947-1971); Recursos hidráulicos (Hydraulic Resources) (1972-1978), and Ingeniería hidráulica en México, second period (1985-2009).
The journal is aimed at researchers, academics, and professionals who are interested in finding solutions to problems related to the water.
The journal’s contents are interdisciplinary and contain previously unpublished articles and notes that offer original scientific and technological contribution that are developed in the fields of knowledge related to the following disciplines:
Water and energy.
Water quality.
Hydro-agricultural sciences.
Political and social science.
Water management.
Hydrology.
Hydraulics.