90 39 0.57 FPU effluent three.15 7.83 376 59 four.16 99 0.57 67 0.57 35 51 1.15 Avg. removal efficiency 33 38 52 UASB effluent 0 7.00 343 80 0.7 150 0.7 120 0.7 63 48 0.7 two.55 0.07 167 22 0 January 2010 FPU effluent three.15 7.77 375 45 1.52 85 4.35 53 two.08 35 43 2.64 3.two 011 Avg.

90 39 0.57 FPU effluent three.15 7.83 376 59 4.16 99 0.57 67 0.57 35 51 1.15 Avg. removal efficiency 33 38 52 UASB effluent 0 7.00 343 80 0.7 150 0.7 120 0.7 63 48 0.7 two.55 0.07 167 22 0 January 2010 FPU effluent three.15 7.77 375 45 1.52 85 four.35 53 2.08 35 43 2.64 3.two 011 Avg. removal efficiency 43 43 56 December 2010 UASB effluent 0 7.33 289 51 1.73 98 11.68 58 2.51 27 37 1 1.50 0.two FPU effluent 1.70 7.63 269 26 2.88 54 four.16 39 2.51 20 27 1.52 2.63 0.25 Avg. removal efficiency 48 45 33 NO3N (mg/L) 2.07 0.05 PO4P (mg/L) ORP (mV) Sulfates (mg/L) Sulfides (mg/L) 5.80 0.1 14 1.52 7.90 0.1.97 0.057 2.93 0.11 5.13 0.2 137 18 0.57 4.37 0.32 4.60 0.01 71 0.43 0.four 25 5.55 0.07 4.80 0.17 75 26 0.four.13 0.05 3.27 0.11 41 35 3.05 four.80 0.55 133 37 1.0 3.50 0.five.65 0.07 1.77 0.Web page 7 ofKhan et al. Journal of Environmental Well being Science Engineering 2014, 12:43 http://www.ijehse.com/content/12/1/Page eight of480 450 420 390 360 330 300 270 240 210 180 150 120 90 60 30BODCODTSSConcentration (mg/L)BOD = 30 mg/L, Disposal Common of IndiaAP AP KP KP SP SP NP27 NP27 NP34 NP34 Influent Effluent Influent Effluent Influent Effluent Influent Effluent Influent EffluentFigure three BOD, COD, TSS concentration in PP.2535 and 3040 respectively.1-(2,2,2-Trifluoroethyl)piperazine Chemscene The final effluent was characterized by a BOD and SS concentration was amongst 4050 mg/L.Formula of 3-Bromo-6-fluoropicolinic acid The outcomes of this study indicate that the polishing ponds employed for UASB effluent upgrade weren’t made correctly and their performance was limited to a clarification course of action.PMID:23916866 Surface aeration activated sludge procedure followed by secondary clarifierAeration Activated sludge course of action Diffused aeration activated sludge process followed by secondary clarifierUASB effluent upgrade at 43 MLD, STP at Vadodara was performed by a surface aeration followed by activated sludge procedure The BOD, COD and SS as well as other parameters for example TC and FC had been measured in order to determine the remedy functionality. The sewage temperature was involving 27.5 28 during the monitoring period from the STP. The performance on the surface aeration followed by activated sludge procedure with regards to BOD and SS removal is presented in Table three.A diffused aeration activated sludge approach was made use of for UASB effluent polishing at one hundred MLD STP, Surat. Aeration was performed by fine pore diffusers installed at the bottom on the aeration tank. The DO concentration within the aeration tank was maintained at 0.eight 1.0 mg/L. The size of the aeration tank was 65 20 three.five m. Sewage temperature ranged between 26 to 33 . The final BOD and TSS concentrations have been 18.five and 45 mg/L, respectively, beneath the disposal requirements. The removal of ammonia nitrogen was greater than 80 but FC removal was around 1 Log. The typical mixed liquor suspended solids (MLSS) concentration was maintained at 2300 to 2500 mg/L. The SV30 of aerobic sludge was equal to 450 mL/L resulted in sludge volume index (SVI) of 180 mL/g. The observed SVI was moderately higher which shows the poor settleability of sludge. The oxygen uptake rate (OUR) was 58.9 mg/L.h. This OUR is often comparable to properly functioning activated sludge course of action primarily based STPs. The ORP increased from 146 mV within the UASB effluent to 53.5 mV indicating the aerobic nature of your activated sludge course of action. A summary of remedy performance of your activated sludge post remedy system is presented in Table 3.BOD, COD and TSS removalsThe removal of UASB effluent organics by the surface aeration activated sludge process was higher. The imply values of BOD,.