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 Wysłany: Pon 9:47, 04 Kwi 2011 Temat postu: tory burch flats dxs lye bzqo azt |
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Groundwater in Watertown correlation of COD and BOD5
The measured value (rag /!) At 8 degrees of freedom, the confidence coefficient () of 0.01, the critical value of rI is 0.766, it is easy to see r> ri ... Therefore, a significant linear correlation equation, we that is from that exists between the COD and B0D significant linear relationship. (C) rejection of the regression equation should be measured according to market the results of monitoring stations over the years, the sample j ~ (COD, BOD to take half the mean square of regression Ran D ~ R-~ Eh value of the regression equation the percentage obtained BODs process calculated B0D value and calculate the Bo deviation from the experiment, the results included in Table II: Table II. BOD5 value between calculated and real end Tiao Juan comparison samples (No.) lW2WjL1 ',. ● rW, Li ri, W12W W15W22W23COD ~] specific areas,[link widoczny dla zalogowanych], currently 0.5:: _ Description:: from 0.51.01.0N2.9, 3.7N1.8N4.5 value (rag / i) drive the value of 1.633282.801.902. 731.982.6l2.301.402.75BOD5 determination range 0.40.71.00. the amount of 0'20 .80.70.30.60.5,1.72.5, v2.2, v2.., l7i.3, V20, 2.8, v 【.8 N2.7 value (rag / 1) mean 0.87I.7I1441 +171.17 【.051.171.571.2 O1.39B0D5 calculated (rag/10. 901.591.39I.0l1.381.041.3l 【.180.80 I.37 deviation of calculated and measured values (horse) +3.45 a 7.0 a 3. 47FI ~. B8 book l6.2 10 .06 + l1. stare at 484.33 for a 1. to the annual cOD and BOD: the average person table blue line and angle regression equation BOD, values. COD (mg / 1) COD means BOD6f felt ugly l665l snail. ugly QU 5 total actual annual calculation and disadvantages of the range (Ⅱ 8: / i) Van 'Wai (mg / 1) value (mg / 1) value of the deviation of f). 83 years of 0.4-4.2 【.710.4 a # the year of 1 .. 53.030 .71.100.93-15468. who-2.771.921.40-22.4o85 year 1. 』a 4.7.S.1. ship llj .. Post +3 i.71 (d) to discuss, I. see from the results of this paper, COD and BOD must exist between the linear relationship between the wells and the correlation was a significant, Hungary return equation is to use the monitoring data over the years and our data obtained from the experiment calculated compiles, so the regression equation for calculating the groundwater BOD. the value of practical. 2. Table II ~-BOD value of each sample were quarter, on average, we can see from the table, applications BODs regression equation calculated notional value of the deviation between the smaller _ Zhi, the smallest is a 0.95 sun, in fact, as measured gangrene 1.06mg, l, owned by caught equation calculated to l, BOD, is I.04 b ig / Ii is a maximum deviation of 33.3 epiphysis, in fact, thank guillotine is 1.30 g / l, calculated value O.8Omg / J. Applied Regression equation to the BODs for acquisition and measured difference between the average clamor epiphyseal II.84. take a deviation (1I.97 outfitting) adjacent to its value compared to the measured value of 1.17mg / 1, calculated value I.3lmg / i, while the capacity of mood after the effective number of bits for the side of a decimal,[link widoczny dla zalogowanych], then the above column are written as t1.2mZ /!, 1.Smg / 1, then the Forest will be reduced to a .3% difference Therefore, application of regression equation of different sampling points burning BOD, quarterly mean credible, annual average application Tonggui equation, we can see from Table III, the smallest deviation is a 15.48,[link widoczny dla zalogowanych], the biggest is 31.71 epiphysis, i help the sad and good at calculating the value of real terms, Pian poor or small, calculated and measured values of the same effect for water quality evaluation, it is calculated chu credible. .3. inner city students to eternal life, then drink underground source of almost swimming.. BOD, evaluation of groundwater is an important indicator of a Joel debate in view of the determination of BOD potential trouble and operating errors, the sauce and the regression equation in this paper given in ridicule CODf ~ m directly estimate the BOD , look. This can only be the end of Bute know BODj value, but also to the Hong BOD5 value given to provide reference data,[link widoczny dla zalogowanych], - so that the scratch was the BOD; value is more reliable.: Note: This section obtained in this paper for the guidance of engineers in this Hu thank l_ j, '- ●;
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