CASS工藝參數(shù)設(shè)計(jì)計(jì)算表

1、設(shè)設(shè)計(jì)計(jì)計(jì)計(jì)算算設(shè)設(shè)計(jì)計(jì)條條件件一一、CASSCASS容容積積計(jì)計(jì)算算（X X）設(shè)計(jì)選用污泥濃度（MLSS）2 25 50 00 0 mg/L一、揮發(fā)性污泥濃度比例(MLVSS/MLSS)0 0. .7 75 5二、（t ta a）曝氣時(shí)間5 5. .6 63 32 2h（）設(shè)計(jì)排出比0 0. .3 33 3（N Ns s）設(shè)計(jì)污泥負(fù)荷0 0. .1 15 5（u u）污泥沉淀速率1 1. .2 23 38 8m/h（T T）水溫1 10 0 曝氣池水深5 5 m（）緩沖層高度0 0. .5 5 m（t ts s）沉淀時(shí)間1 1. .7 73 37 7h（t tb b）潷水時(shí)間0 0. .5

2、5 h（t tj j）進(jìn)水時(shí)間0 0 h(X)(X)暫停時(shí)間0 0 h（t t）周期時(shí)間7 7. .8 86 69 9h（n n1 1）反應(yīng)池?cái)?shù)目4 4 個(gè)（n n2 2）每天運(yùn)行周期3 3. .0 05 50 0個(gè)，24/周期時(shí)間結(jié)結(jié)果果（V V）曝氣池容積2 29 98 80 0. .5 53 38 8m3，水量/（排出比運(yùn)行周期反應(yīng)池?cái)?shù)目）曝氣池總?cè)莘e1 11 19 92 22 2. .1 15 51 1m3二二、污污泥泥產(chǎn)產(chǎn)量量1 1CASSCASS段段剩剩余余污污泥泥(Y)(Y)BOD污泥產(chǎn)率0 0. .5 5 0.4-0.8( (f)f)SS污泥產(chǎn)率0 0. .6 6 0.5-0.

3、7（XX）剩余污泥量2 21 10 00 0 kg（絕干泥，不考慮衰減量）2 2UASBUASB污污泥泥污泥產(chǎn)率0 0. .2 2 以COD計(jì)算SS污泥產(chǎn)率0 0. .6 6 同前UASB污泥產(chǎn)量2 23 38 86 68 8 kg（絕干泥，不考慮衰減量）3 3初初沉沉池池污污泥泥產(chǎn)泥系數(shù)0 0. .9 90.8-1.0，排泥時(shí)間長取下限產(chǎn)泥量1 17 78 82 20 0 kg（絕干泥）結(jié)結(jié)果果絕干泥重量4 43 37 78 88 8 kg(初沉池產(chǎn)泥+UASB產(chǎn)泥+CASS產(chǎn)泥)三三、 CASSCASS池池曝曝氣氣量量計(jì)計(jì)算算1 1設(shè)設(shè)計(jì)計(jì)需需氧氧量量（a a）氧化每kgBOD需氧量系數(shù)0

4、 0. .4 48 8kgO2/kgBOD5(一般取0.42-0.53）（b b）污泥自身氧化系數(shù)0 0. .1 15 5kgO2/（kgMLVSSd）(一般取0.19-0.11）(AOR)(AOR)設(shè)計(jì)每天需氧量4 43 33 32 2. .3 30 05 5kgO2/d355.0965設(shè)計(jì)每周期需氧量3 35 55 5. .0 09 96 6kgO2/周期2 2實(shí)實(shí)際際需需氧氧量量（C CS60S60）20時(shí)氧在清水中的飽和溶解度9 9. .1 17 7mg/l()()氧總轉(zhuǎn)移系數(shù)0 0. .8 85 5()()氧在污水中的飽和溶解度修正系數(shù)0 0. .9 95 5()()因海拔高度不同引

5、起的壓力系數(shù)1 1. .0 00 00 0(p)(p)所在地的大氣壓1 10 01 13 30 00 0 Pa(900m海拔)(C(Csb(T)sb(T) )設(shè)計(jì)水溫條件下曝氣池內(nèi)平均溶解氧飽和度1 10 0. .1 18 89 9mg/l(C(Cs(T)s(T) )設(shè)計(jì)水溫下氧在清水中飽和溶解度8 8. .9 9mg/l(p(pb b) )空氣擴(kuò)散裝置處的絕對壓力1 14 47 73 36 60 0 Pa(H)(H)空氣擴(kuò)散裝置淹沒深度4 4. .7 7 m(O(Ot t) )汽包離開水面時(shí)含氧量1 17 7. .5 53 37 7%(E(EA A) )空氣擴(kuò)散裝置氧轉(zhuǎn)移效率2 20 0 %

6、(C)(C)曝氣池內(nèi)平均溶解氧濃度2 2 mg/l(T)(T)設(shè)計(jì)污水水溫2 25 5 (SOR)(SOR)標(biāo)準(zhǔn)需氧量4 44 43 3. .0 03 34 4kg/周期3 3實(shí)實(shí)際際供供氣氣量量()()空氣用量7 73 38 83 3. .9 90 07 75 51 19 9 m3/周期曝氣機(jī)供氣量，單池1 13 31 11 1. .0 06 63 31 12 25 5 m3/h2 21 1. .8 85 51 1m3/min4 4氣氣水水比比7 7. .5 50 07 7變化系數(shù)1 1. .5 58 85 5平均每天處理處理量1 12 20 00 00 0 m3/d1 13 38 8. .

7、8 88 89 9L/S設(shè)計(jì)水質(zhì)CODcrBOD5SS氨氮TP初沉池進(jìn)水12000500055005511出水10800450038505511去除率%10103000UASB進(jìn)水10800450038505511出水43202700269549.59.9去除率%6040301010CASS進(jìn)水360200220353出水60307080.5去除率%9085684030海拔高度（m）大氣壓（pa）010.310410010.210420010.110430010.01044009.81045009.71046009.61047009.51048009.410415008.610420008.1

8、104設(shè)設(shè)計(jì)計(jì)條條件件水量：200000 m3/d水溫10 MLSS：3500 mg/LMLVSS/MLSS:0.75污泥自身氧化系數(shù)0.06污泥負(fù)荷出水溶解性BOD6.81去除率0.96曝氣池溶積88142.47m3動(dòng)力學(xué)參數(shù)0.0220.0168-0.0281污泥負(fù)荷0.12kgBOD5/(kgMLVSSd)容積負(fù)荷0.41kgBOD5/(m3d)SVI150二沉池修正系數(shù)1.2污泥回流比0.778100%8000活性污泥產(chǎn)泥系數(shù)0.6Kd（20）0.06Kd（25）0.041剩余生物污泥產(chǎn)量11404.921kg/d進(jìn)水VSS中可生化比例0.7剩余非生物污泥產(chǎn)量14250 kg/d剩余污

9、泥總量107.000kg/d剩余污泥含水率99.7 %剩余污泥體積35.667m3/d污泥齡20.29d復(fù)合出水BOD6.805復(fù)合氨氮出水28.15704717a1.47b4.6c1.42設(shè)計(jì)需氧量AOR34724.34164 kg/d=1446.847569 kg/h去除沒kgBOD需要的氧1.002kgCs209.17 mg/l氧轉(zhuǎn)移系數(shù)0.85氧氣在污水溶解度修正0.95海拔度900 m海拔高度處大氣壓91000 pa（查表可知）因海拔引起的壓力系數(shù)0.898321816設(shè)計(jì)水溫氧在清水中飽和溶解度Cs(T)8.4 25度時(shí)空氣擴(kuò)散裝置淹沒深度4.3 m空氣擴(kuò)散裝置處絕對壓力Pb143

10、440 pa空氣擴(kuò)散裝置氧轉(zhuǎn)移效率Ea0.2 100%氣泡離開水面時(shí)含氧量0.175100%(C(Csb(T)sb(T) )設(shè)計(jì)水溫條件下曝氣池內(nèi)平均溶解氧飽和度9.454mg/l曝氣池內(nèi)平均氧濃度2 mg/l標(biāo)準(zhǔn)需氧量SOR3260.5529kg/h空氣用量5 54 43 34 42 2. .5 55 5m3/h905.709m3/min氣水比6 6. .5 52 2CODBODSSNH3-NTNTP進(jìn)水35018016035503出水12010108150.5去除率0.6570.9440.9380.7710.7000.833海拔高度（m）大氣壓（pa）010.310410010.21042

11、0010.110430010.01044009.81045009.71046009.61047009.51048009.410415008.610420008.1104設(shè)計(jì)粗格柵40 mm設(shè)計(jì)水量200000 m3/d設(shè)計(jì)細(xì)格柵5 mm變化系數(shù)1.169489最大時(shí)水量 233897.7 m3/d粗格柵柵渣系數(shù)0.010.03-0.01m3/10m3污水，當(dāng)格柵間距為30-50mm細(xì)格柵柵渣系數(shù)0.10.1-0.05m3/10m3污水，當(dāng)格柵間距為16-25mm粗格柵柵渣2 m3/d細(xì)格柵柵渣20 m3/d合計(jì)22 m3/d本工程設(shè)計(jì)個(gè)數(shù)4 個(gè)柵前水深0.4 m過柵流速0.8 m/s柵條間隙寬

12、度50 mm安裝角度60 度柵條間隙數(shù)n39.36385 個(gè)取整39 個(gè)柵條寬度S0.01 m槽寬B2.33 m取整2.4設(shè)進(jìn)水渠道寬B10.5 m展開角度20 度則l1長度為2.610104 ml2長度1.305052 m1.83 設(shè)柵條斷面為迎水面為半圓形的矩形柵條阻力系數(shù)0.214038水頭損失0.018158 m設(shè)柵前渠道超高h(yuǎn)20.5 m柵后槽總高度0.918158 m取整1 m總長度7.887885 m=8333.333 m3/h2.314815 m3/s=2314.815=9745.739 m3/h2.70715 m3/s=2707.15設(shè)計(jì)水量20000 m3/d變化系數(shù) 1.

13、499671最大時(shí)水量 29993.42 m3/d=833.3333 m3/h0.231481 m3/s=231.4815=1249.726 m3/h0.347146 m3/s=347.1461設(shè)計(jì)水量200000 m3/d=8333.333 m3/h2.314815 m3/s變化系數(shù)1.16949最大時(shí)水量233898 m3/d=9745.739 m3/h2.70715 m3/sBODSSNH3-N進(jìn)水50035040出水10108設(shè)計(jì)A段出水1005015A段負(fù)荷4 kgBOD/kgMLVSSdB段負(fù)荷0.2 kgBOD/kgMLVSSd曝氣時(shí)間0.5 h曝氣時(shí)間5 hMLSS3000ML

14、SS5000MLVSS/MLSS0.75MLVSS/MLSS0.75則MLVSS2250則MLVSS3750二沉池停留時(shí)間2 h二沉池停留時(shí)間4 hB段參數(shù)設(shè)計(jì)參照傳統(tǒng)法部分，進(jìn)水為A段出水水質(zhì)曝氣池容積8888.89 m3，單座污泥增長系數(shù)0.35 0.3-0.5剩余污泥量88000 kg/d污泥含水率98.7 %污泥體積6769.23 m3/dSVI75污泥回流濃度16000 mg/l污泥回流比0.23077污泥齡SRT0.45455 d實(shí)際停留時(shí)間0.86667 ha0.5 0.4-0.6，氧化每kgBOD5需氧量b0.15 0.19-0.11，污泥自身氧化系數(shù)設(shè)計(jì)需氧量AOR40000

15、 kgO2/dA段實(shí)際需要空氣量參照傳統(tǒng)法部分=2314.815=2707.15kgBOD/kgMLVSSdB段參數(shù)設(shè)計(jì)參照傳統(tǒng)法部分，進(jìn)水為A段出水水質(zhì)設(shè)計(jì)水量200000 m3/d=8333.333 m3/h2.314815 m3/s變化系數(shù)1.169489最大時(shí)水量233897.7 m3/d=9745.739 m3/h2.70715 m3/s表表面面負(fù)負(fù)荷荷1 1m3/m2d初沉池：1.5-3.0m3/m2d二沉池0.5-1.5池子個(gè)數(shù)8 個(gè)沉淀部分面積1041.667 m2直徑36.41828 m取整40 m,僅供參考，建議根據(jù)計(jì)算結(jié)果手動(dòng)輸入。半徑20實(shí)際水面面積1256.637 m

16、2實(shí)際負(fù)荷0.828932沉淀時(shí)間3.5 h沉淀部分有效水深h22.901262 m取整3有效容積3769.911 m3進(jìn)水ss4000 mg/l出水mlss20 mg/l設(shè)計(jì)每兩次排泥時(shí)間間隔2 h污泥部分所需容積1036.458 m3r12 mr21 mh51.732051 m污泥斗容積12.6966 m3沉淀池坡度0.05h40.9 m污泥斗以上圓錐體部分容積418.4601 m3總?cè)莘e431.1567 m3,需1036.458FALSE沉淀池超高h(yuǎn)10.3 m緩沖層高度h30.3 m總高度6.232051 m池邊高度3.6 m出水堰直徑39 m,采用雙出水堰出水堰負(fù)荷1.180815

17、L/Sm1.5FALSE2.9TRUE徑徑深深比比1 13 3. .3 33 33 33 33 3 一般為6-12=2314.815=2707.15設(shè)計(jì)水量460 m3/d=19.16667 m3/h0.0053241 m3/s=變化系數(shù)2.253873最大時(shí)水量1036.781 m3/d=43.19923 m3/h0.012m3/s=BODSSNH3-N進(jìn)水18018040出水202015容積負(fù)荷1 kgBOD/M3d填料體積82.8 m3填料層高度3 m填料平面面積27.6 m2分為2 格有效接觸時(shí)間4.32 h氣水比15 15-20，源自給排水手冊曝氣量287.5 m3/h=4.7916

18、67 m3/min5.324074 l/s11.99979 l/s13.59426428223.25929153 36.953990234 39.906190335 64.823330866 75.888406867 115.14837828 65.581443249 148.951754410 147.072536811 217.639046612 206.639929813 263.782141414318.00682415 368.751733616 283.316520617 376.879607918 473.194484419 529.510132120 541.116902621

19、 447.467791522 562.803105523 612.830978924 794.565622825 865.344690326 756.182579727 919.475506828 876.309432629 863.109958230 1043.74309931 1139.44923332 1147.64668933 1381.234149341330.2054635 1246.56806136 1637.88476437 1543.392142381542.8989139 1797.90001940 1847.57719741 1698.14403142 2028.0557

20、6243 2222.70132944 1994.20555245 2314.48017746 2199.18141247 2358.52259148 2712.42131349 2498.17275650 2828.25641851 2782.357502Series152 2964.78981853 2843.035174543282.2360455 3526.118131563161.7414557 3418.49661858 3904.48223759 4007.12266660 4162.37567361 4064.83170762 4337.172078634076.701264 4

21、435.51455865 4389.96765866 4851.56595767 5024.34719968 4818.27698469 5112.76529870 4993.36699971 5176.32182872 5519.11035873 6038.61773374 5941.11998275 5936.23908776 6494.07442877 5986.46013278 6460.79509879 6693.67486580 6594.65819881 7190.01173382 6889.972006837621.7029384 7365.34398985 7987.5976

22、3286 8056.005854878021.6372988 8572.24594189 8398.31359990 8778.71781891 8507.85493892 8848.80493193 8722.51701794 9157.49974895 9510.43352696 9602.63349997 9474.499661989969.0795199 10266.79841100 10512.12235101 11127.11284102 11092.48182Series1103 11140.09397104 11489.62444105 12016.98107106 12262

23、.6689310712050.897108 11800.77891109 12349.62236110 12407.23707111 13244.33502112 12867.04598113 12780.10523114 13358.20175115 14207.76953116 13809.69582117 14646.93012118 15056.87868119 15265.86954120 14786.52165121 14731.62897122 15656.14288123 16116.63066124 15921.18438125 16809.49914126 16384.08

24、059127 16638.46662128 17464.88794129 16687.39511130 17988.14665131 17272.21532132 17621.16603133 18905.2828113418232.6806135 18945.54847136 19175.44085137 19827.16491138 19547.93263139 19363.54724140 20190.73134141 20771.16403142 20983.36039143 21126.49347144 20855.42101145 21127.58879146 22570.67827147 21711.77425148 22093.76416149 22754.30382150 23885.33069151 24094.81794152 24358.53422153 23976.91228Series115424164.3094155 25272.06018156 24508.58794157 25456.15511158 25553.9896915925762.5558160 25891.74352161 25930.62446162 27112.17986163 27