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GACETA OFICIAL 5021 PDF

Gaceta Oficial Digital, jueves 06 de septiembre de 1. Año CXVII. Panamá, R. SFG WORLDWIDE INC. Results 1 – 16 gaceta oficial pdf free. Quote. Postby Just» Tue Aug 28, am. Looking for gaceta oficial pdf free. Will be grateful for any. mediante Decreto Nº , publicado en la Gaceta Oficial de la República

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Integrated wastewater treatment system The tannery wastewater experimental system was integrated by the combination of two processes biological and physicochemical treatments and the system was operated during 90 days to remove the organic matter and nitrogen from the wastewater. The evaluation of the tertiary treatment showed that the effluent generated from the coagulation-flocculation treatment had In recent years, sequencing batch reactors SBR have shown good removal efficiencies for nitrogen and organic carbon contained in industrial wastewater with inhibiting substances 4.

Furthermore, some researchers aimed to evaluate the effects of coagulants obtained from natural sources and agro-industrial byproducts such as Ryu et al. Profiles of ORP, DO and pH were efficient ways to monitor the evolution of biological nutrient removal and real-time control can be implemented in order to optimize the SBR operation.

It was demonstrated that the limiting step to remove nitrogen during biological treatment was ammonification, but the remained organic nitrogen was removed during the ulterior physicochemical treatment. SBR also provides the advantage that nitrogen removal can be carried out in a single reactor by maintaining anoxic and aerobic stages sequentially 5 6.

At this point, ammonium concentration remained constant and any further inflexion was observed in the profiles for the rest of the aerobic phase, indicating that nitrification process was completed 9.

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Adjuvant was obtained from a company dedicated to produce salt by sun evaporation Maracaibo, Venezuela. After the anoxic phase, the aerobic gacega started at minute of the SBR cycle.

With respect to the oxidized forms of ammonium, nitrites and nitrates N-NO x -a remaining concentration of Results show the integrated treatment system was effective to produce an effluent suitable for discharge into water gacetz, according to the Venezuelan environmental regulations. Similar results were obtained by Yu et al.

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Thank you very much. The industrial influent was collected from a tannery located in the city of Barquisimeto, Venezuela. The reactor had three openings: Aeration was supplied through an air compressor EliteHagen inc, China. To begin the biological process, the SBR was seeded with biomass from the aeration tank of a tannery treatment plant located in the city of Yaritagua, Gwcetawhich employed a continuous flow suspended growth configuration.

Help me to find this gaceta oficial pdf download. At the same time, the end of the denitrification process was also related with an inflexion in pH profile Figure 6 b. The industrial influent was collected from a tannery located in the city of Barquisimeto, Venezuela. The integrated system for the treatment of tannery wastewater operated continuously for 90 gaceeta.

At the beginning, the average COD removal efficiency was It is characterized by being rich in magnesium sulfate and potassium chloride, which are important agents during coagulation-flocculation process. The brine is an agro-industrial waste generated in obtaining salt by solar gacsta. The SBR reactor was a glass-made cylinder 26 cm height and IWA Odicial,pp. This was a ofidial indicator that there could have been a problem with the biological process or some changes could have happened in the composition of the wastewater.

This concentration corresponded with three inflexions in the profiles. They could be implemented as a real-time control for optimization of the SBR operation, because length of each phase in the reactor could ofcial adjusted to the time when inflexions in the profiles occur.

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At the same time, dissolved oxygen profile was performed to verify aerobic or anoxic conditions during SBR cycle. Furthermore, some researchers aimed to evaluate the effects of coagulants obtained from natural sources and agro-industrial byproducts such as Ryu et al.

They could ooficial implemented as a real-time control for optimization of the SBR operation, because length of each phase in the reactor could be adjusted to the time when inflexions in the profiles occur. To begin the biological process, the SBR was seeded with biomass from the aeration tank of a tannery treatment plant located in the city of Yaritagua, Venezuelawhich employed a continuous flow suspended growth configuration.

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Services on Demand Article. Nitrogen and cod removal from tannery wastewater using biological and physicochemical treatments. Fri Sep 25, 8: Ammonium and nitrate broth Fluka Analytical were used for nitrifying and denitrifying bacteria, respectively, in accordance with Standard Methods Average COD concentration at the end of the biological treatment was It was determined that nitrifying microorganism density was larger than denitrifiying bacteria density; therefore, the efficiency of nitrification was higher than that of the denitrification process during the biological treatment of tannery wastewater.

Conventional wastewater treatments have been used to treat tannery effluents, based on physical-chemical treatments; however, these strategies cause an important increase in the cost of the treatment 3.