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PERFORMANCE OF UASB REACTORS IN TWO STAGES UNDER DIFFERENT HRT AND OLR TREATING RESIDUAL WATERS OF SWINE FARMING ESTEVÃO URBINATI

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FIGURE 1. Schematic longitudinal section of the anaerobic treatment system in two stages, in pilot  scale, with 908 L UASB reactor, built in armed mortar (4), and 188 L UASB reactor,  built with plastic tube (polyvinyl chloride - PVC) (5)
TABLE 2. Examinations and determinations, frequency and sources of the methodologies used
Figure 2  shows the averages of  each period (tests 1; 2; 3; 4 and 5) to  the  average daily  air  temperature
TABLE  3.  Average  values  of  pH,  total  alkalinity  (TA),  partial  alkalinity  (PA)  and  total  volatile  acids (TVA) in the affluent and effluents from reactors R1 and R2, obtained during the  operation of anaerobic treatment system in two stages in
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