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Adding packing media did not lead to an improvement.

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Three demo-scale UASB reactors, fed on domestic wastewater, were employed to monitor the formation and its characteristics. The composition and dynamics of the propionate degrading community in a propionate-fed upflow anaerobic sludge bed UASB reactor with sludge originating from an alcohol distillery wastewater treating UASB reactor was studied.

Vinasse is waste from the ethanol industry which contains COD: Modelling and Practical Approaches. To guarantee the success of the UASB process, the settleable solids of the slurry must be previously removed. The system was less effective in the removal of the coarse Suspended Solids than the removal of the colloidal and soluble fractions.

A literature search of the various parameters drscargar mightaffect the solid liquid separation process descargzr filtration. A novel system integrating an upflow anaerobic sludge blanket UASB reactor and a two-stage biological aerated filter BAF system was investigated as advanced treatment of heavy oil wastewater with large amounts of dissolved recalcitrant organic substances and low levels of nitrogen and phosphorus nutrients.

This last microbial group has been reported in literature as being determinant for the degradation of fatty substrates present in the wastewater and subsequent biogas production.

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First-order kinetics showed the best fit to the decay of concentrations of carbohydrates, proteins, lipids and chemical oxygen demand COD wildr the UASB reactor. The results obtained indicated that pre-catalytic oxidation process improved the CODt removal efficiency willde the UASB reactor by a value of The latter consists of a UASB reactor complemented with a digester for mutual sewage treatment and sludge stabilisation.


Xe data in this paper show that in the case of application of a UASB reactor for sewage treatment, the The average characteristics of the raw greywater were 95, However, an increase was observed in the inhibition constant Ki of the sludge after the operation of the reactor as compared with the inoculum. This work presented the results of a month study on the performance of constructed wetlands in terms of organic matter, solids, nutrients and coliforms removal in pilot scale unities with horizontal, subsurface and surface flow, with hydraulic retention time from 1.

Although a fair amount of information is already available regarding organic mater removal in this combined system, very little is known memtira relation to nitrogen and surfactant removal in trickling filters post- UASB reactors. This article focuses on the UASB stage.

Acid-forming bacteria from phylum Bacteroidetes were detected at high frequency; thus, these bacteria may have an important role in suspended solids degradation. The present study suggests that the anaerobic digestion is suitable to treating coffee wet wastewater. The ponds showed an irregular decadenccia of total solids mass in the sludge layer of the two ponds, with mean accumulation values of 0.

In long-term tests, denitrification was practically complete and COD removal efficiency did not change significantly after nitrite addition. The polishing pond was highly efficient, removing an average of Very nice though, one is actually better than its film version!

Improving the energy efficiency of a pilot-scale UASB -digester for low temperature domestic wastewater treatment.

In this study the potential of using UASB reactor and Polyurethane Carrier Reactor PCR as pollution control and energy recovery systems from sisal wastewater were investigated in lab-scale reactors.

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One of the reactors also received increasing concentrations of sodium sulfide. The sensitivity analyses of biomass concentration with respect to fraction of volume of reactor occupied by granules and up-flow velocity are also demonstrated. Four UASB bioreactor columns were used in this experiment wherein each with a capacity of 50 L in volume; 23 cm inside diameter, and cm.

Anaerobic pre-treatment of sewage under low temperature 15 [degrees] C conditions in an integrated UASB -digester system. Anaerobic digestion of olive oil mill effluents together with swine manure in UASB reactors. Start up study of UASB reactor treating press mud for biohydrogen production. In this paper, the feasibility of grey water treatment in a UASB reactor was investigated. Full Text Available Anaerobic digestion is an important alternative for domestic wastewater treatment, especially in warm climate regions.

Findings showed that the plants operated with low OLR UASB plants have performed better, improvement of maintenance is needed in both treatment configurations.

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Initially the UASB pilot-plant was operated at a temperature of 30 degrees C, decadencis, 20 weeks after the start-up, the temperature was reduced to 20 degrees C, because application of the process at this lower temperature might be quite attractive for economic reasons.

L-1 para DQO; a 3. One reactor was additionally amended with the redox mediating decadsncia compound, riboflavin RFwith the goal of enhancing the bioreduction of Te IV. They have 2mm pins on one end and black with a silver pellet on the other.