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1、設設計計計計算算一一、CASSCASS容容積積計計算算（X X）設計選用污泥濃度（MLSS）25002500 mg/L揮發性污泥濃度比例(MLVSS/MLSS)0.750.75（t ta a）曝氣時間5.6325.632h（）設計排出比0.330.33（N Ns s）設計污泥負荷0.150.15（u u）污泥沉淀速率1.2381.238m/h（T T）水溫1010 曝氣池水深5 5 m（）緩沖層高度0.50.5 m（t ts s）沉淀時間1.7371.737h（t tb b）潷水時間0.50.5 h（t tj j）進水時間0 0 h(X)(X)暫停時間0 0 h（t t）周期時間7.8697.2、869h（n n1 1）反應池數目4 4 個（n n2 2）每天運行周期3.0503.050個，24/周期時間結結果果（V V）曝氣池容積2980.5382980.538m3，水量/（排出比運行周期反應池數目）曝氣池總容積11922.15111922.151m3二二、污污泥泥產產量量1 1CASSCASS段段剩剩余余污污泥泥(Y)(Y)BOD污泥產率0.50.5 0.4-0.8(f)f)SS污泥產率0.60.6 0.5-0.7（XX）剩余污泥量21002100 kg（絕干泥，不考慮衰減量）2 2UASBUASB污污泥泥污泥產率0.20.2 以COD計算SS污泥產率0.60.6 同前UASB污泥3、產量2386823868 kg（絕干泥，不考慮衰減量）3 3初初沉沉池池污污泥泥產泥系數0.90.90.8-1.0，排泥時間長取下限產泥量1782017820 kg（絕干泥）結結果果絕干泥重量4378843788 kg(初沉池產泥+UASB產泥+CASS產泥)三三、CASSCASS池池曝曝氣氣量量計計算算1 1設設計計需需氧氧量量（a a）氧化每kgBOD需氧量系數0.480.48kgO2/kgBOD5(一般取0.42-0.53）（b b）污泥自身氧化系數0.150.15kgO2/（kgMLVSSd）(一般取0.19-0.11）(AOR)(AOR)設計每天需氧量4332.3054332.3054、kgO2/d設計每周期需氧量355.096355.096kgO2/周期2 2實實際際需需氧氧量量（C CS60S60）20時氧在清水中的飽和溶解度9.179.17mg/l()()氧總轉移系數0.850.85()()氧在污水中的飽和溶解度修正系數0.950.95()()因海拔高度不同引起的壓力系數1.0001.000(p)(p)所在地的大氣壓101300101300 Pa(900m海拔)(C(Csb(T)sb(T)設計水溫條件下曝氣池內平均溶解氧飽和度10.18910.189mg/l(C(Cs(T)s(T)設計水溫下氧在清水中飽和溶解度8.98.9mg/l(p(pb b)空氣擴散裝置處的絕對壓力5、147360147360 Pa(H)(H)空氣擴散裝置淹沒深度4.74.7 m(O(Ot t)汽包離開水面時含氧量17.53717.537%(E(EA A)空氣擴散裝置氧轉移效率2020%(C)(C)曝氣池內平均溶解氧濃度2 2 mg/l(T)(T)設計污水水溫2525(SOR)(SOR)標準需氧量443.034443.034kg/周期3 3實實際際供供氣氣量量()()空氣用量7383.9075197383.907519 m3/周期曝氣機供氣量，單池1311.0631251311.063125 m3/h21.85121.851m3/min4 4氣氣水水比比7.5077.507設設計計條條件件變6、化系數1.5851.585一、平均每天處理處理量1 12 20 00 00 0 m3/d138.889138.889L/S二、設計水質CODcrBOD5SS氨氮TP初沉池進水12000500055005511出水10800450038505511去除率%10103000UASB進水10800450038505511出水43202700269549.59.9去除率%6040301010CASS進水360200220353出水60307080.5去除率%9085684030海拔高度（m）大氣壓（pa）010.310410010.210420010.110430010.01044009.8104507、09.71046009.61047009.51048009.410415008.610420008.1104355.0965水量：200000 m3/d水溫10 MLSS：3500 mg/LMLVSS/MLSS:0.75污泥自身氧化系數0.06污泥負荷出水溶解性BOD6.81去除率0.96曝氣池溶積88142.47m3動力學參數0.0220.0168-0.0281污泥負荷0.12kgBOD5/(kgMLVSSd)容積負荷0.41kgBOD5/(m3d)SVI150二沉池修正系數1.2污泥回流比0.778100%8000活性污泥產泥系數0.6Kd（20）0.06Kd（25）0.041剩余生物污泥8、產量11404.921kg/d進水VSS中可生化比例0.7剩余非生物污泥產量14250 kg/d剩余污泥總量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復合出水BOD6.805復合氨氮出水28.15704717a1.47b4.6c1.42設計需氧量AOR34724.34164 kg/d=1446.847569 kg/h去除沒kgBOD需要的氧1.002kgCs209.17 mg/l氧轉移系數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0.898321816設計水溫氧在清水9、中飽和溶解度Cs(T)8.4 25度時空氣擴散裝置淹沒深度4.3 m空氣擴散裝置處絕對壓力Pb143440 pa空氣擴散裝置氧轉移效率Ea0.2 100%氣泡離開水面時含氧量0.175100%(C(Csb(T)sb(T)設計水溫條件下曝氣池內平均溶解氧飽和度9.454mg/l曝氣池內平均氧濃度2 mg/l標準需氧量SOR3260.5529kg/h空氣用量54342.5554342.55m3/h905.709m3/min氣水比6.526.52CODBODSSNH3-NTN進水3501801603550出水1201010815去除率0.6570.9440.9380.7710.700海拔高度（m）大10、氣壓（pa）010.310410010.210420010.110430010.01044009.81045009.71046009.61047009.51048009.410415008.610420008.1104TP30.50.833設計粗格柵40 mm設計水量200000設計細格柵5 mm變化系數1.169489最大時水量 233897.7粗格柵柵渣系數0.010.03-0.01m3/10m3污水，當格柵間距為30-50mm細格柵柵渣系數0.10.1-0.05m3/10m3污水，當格柵間距為16-25mm粗格柵柵渣2 m3/d細格柵柵渣20 m3/d合計22 m3/d本工程設計個數4 11、個柵前水深0.4 m過柵流速0.8 m/s柵條間隙寬度50 mm安裝角度60 度柵條間隙數n39.36385 個取整39 個柵條寬度S0.01 m槽寬B2.33 m取整2.4設進水渠道寬B10.5 m展開角度20 度則l1長度為2.610104 ml2長度1.305052 m1.83 設柵條斷面為迎水面為半圓形的矩形柵條阻力系數0.214038水頭損失0.018158 m設柵前渠道超高h20.5 m柵后槽總高度0.918158 m取整1 m總長度7.887885 mm3/d=8333.333 m3/h2.314815 m3/s=2314.815m3/d=9745.739 m3/h2.7071512、 m3/s=2707.150.03-0.01m3/10m3污水，當格柵間距為30-50mm0.1-0.05m3/10m3污水，當格柵間距為16-25mm設計水量20000 m3/d變化系數 1.499671最大時水量 29993.42 m3/d=833.3333 m3/h0.231481 m3/s=231.4815=1249.726 m3/h0.347146 m3/s=347.1461設計水量200000 m3/d=8333.333 m3/h2.314815變化系數1.16949最大時水量233898 m3/d=9745.739 m3/h2.70715BODSSNH3-N進水50035040出13、水10108設計A段出水1005015A段負荷4 kgBOD/kgMLVSSdB段負荷0.2曝氣時間0.5 h曝氣時間5MLSS3000MLSS5000MLVSS/MLSS0.75MLVSS/MLSS0.75則MLVSS2250則MLVSS3750二沉池停留時間2 h二沉池停留時間4B段參數設計參照傳統法部分，進水為A段出水水質曝氣池容積8888.89 m3，單座污泥增長系數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實際停留時間0.8614、667 ha0.5 0.4-0.6，氧化每kgBOD5需氧量b0.15 0.19-0.11，污泥自身氧化系數設計需氧量AOR40000 kgO2/dA段實際需要空氣量參照傳統法部分m3/s=2314.815m3/s=2707.15kgBOD/kgMLVSSdhhB段參數設計參照傳統法部分，進水為A段出水水質設計水量200000 m3/d=8333.333 m3/h2.314815 m3/s變化系數1.169489最大時水量233897.7 m3/d=9745.739 m3/h2.70715 m3/s表表面面負負荷荷1 1m3/m2d初沉池：1.5-3.0m3/m2d二沉池0.5-1.5池子個數15、8 個沉淀部分面積1041.667 m2直徑36.41828 m取整40 m,僅供參考，建議根據計算結果手動輸入。半徑20實際水面面積1256.637 m2實際負荷0.828932沉淀時間3.5 h沉淀部分有效水深h22.901262 m取整3有效容積3769.911 m3進水ss4000 mg/l出水mlss20 mg/l設計每兩次排泥時間間隔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總容積431.1567 m3,需1036.458FALS16、E沉淀池超高h10.3 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荷1.180815 L/Sm1.5FALSE2.9TRUE徑徑深深比比13.3333313.33333 一般為6-12=2314.815=2707.15設計水量460 m3/d=19.16667 m3/h0.005324 m3/s變化系數2.253873最大時水量1036.781 m3/d=43.19923 m3/h0.012m3/sBODSSNH3-N進水18018040出水202015容積負荷1 kgBOD/M3d填料體積82.8 m3填料層高度3 m填料平17、面面積27.6 m2分為2 格有效接觸時間4.32 h氣水比15 15-20，源自給排水手冊曝氣量287.5 m3/h=4.791667 m3/min=5.324074 l/s=11.99979 l/s1 3.167935903214.12364623 31.858067264 24.501273465 28.559367576 46.597150137 60.271698728 139.55655419 109.225433810 194.334458811 124.058917412 248.713666913227.39587914 289.342071415249.88351816 418、05.348641217 442.173042618 496.317061719 404.560040120 549.394840521 642.190017122 569.347676523 656.152172824 682.877263825840.96093426 742.240647927 824.980138328 924.747482329 924.566064430 1125.39913531 1090.91618132 1214.55478933 1120.81051834 1270.805177351260.7649836 1377.63474437 1606.38015219、381708.7471639 1722.53429440 1816.10674241 1844.23447442 1828.16551243 2133.45651944 2124.868254452297.4212646 2419.94645447 2663.27888248 2647.96815949 2617.33804250 2734.4620442502001501005000500010000150002000025000300003500040000450005000051 2801.87272552 2723.72092653 2892.958755543172.5065255 20、3561.97374756 3211.65731757 3660.835213583574.6204959 3887.60411960 3634.92716361 4088.78480562 3971.86742863 4549.30264564 4607.251979654230.2098366 4438.55037667 5144.559997685176.6085669 4878.07040270 5594.860535715354.2796772 5313.73962873 5917.26696974 5489.43474375 5859.17993276 5835.80196977 21、6364.82606478 6477.76114279 7011.36385180 7110.66151981 6868.73982582 6980.29640583 7540.21005184 7378.68651185 8018.83663386 7665.35213387 8183.91536288 7983.87462589 8396.65777290 8710.99371191 8556.24848992 9319.59810293 8794.02928994 8980.61260395 9074.27537396 9602.32723297 10341.1848498 9709.522、2004299 10307.10518100 10408.1204325020015010050005000100001500020000250003000035000400004500050000101 10946.81089102 11086.62809103 11520.33481104 10922.38948105 11716.05659106 11937.25401107 11539.84386108 11957.37249109 12935.73374110 13198.0559211113259.0505112 12603.41854113 13657.603851141331423、.1767115 14373.68042116 14185.3141811714575.3882118 14570.63904119 14297.9300512014722.1948121 15169.43211122 16070.98304123 15183.49685124 16486.32992125 16014.06866126 16760.25301127 17143.16251128 16629.33324129 17302.81425130 17708.23239131 17570.14474132 18537.78594133 18363.78706134 19173.395524、9135 18693.87805136 19154.4600213719910.5044138 19634.26279139 20234.55219140 20624.04212141 20137.44023142 20169.8380814321603.796314420891.0699145 22174.21522146 22406.47213147 21950.63555148 23286.30098149 22584.81974150 22522.192532502001501005000500010000150002000025000300003500040000450005000025、151 22887.43705152 23270.14145153 23485.53029154 24583.60471155 24600.61285156 25809.38726157 25639.94685158 26454.07895159 25491.14279160 26244.2822716126336.8182162 26463.32988163 27107.01633164 28178.77175165 28771.86315166 28571.10047167 29055.63817168 29680.39594169 29599.57467170 30102.863431726、1 29421.28783172 30474.57918173 30050.66537174 31369.27183175 32010.10771176 32359.11317177 32910.06812178 32447.20714179 33589.83712180 34083.5328918133387.3516182 34911.62437183 33765.51994184 33943.98321185 34979.10482186 34764.18603187 36530.29932188 35439.23218189 36717.03269190 37228.84271191 27、37887.18928192 38347.48389193 38662.90109194 38969.30455195 38120.87732196 38497.1370919740342.9346198 40975.06945199 40226.48943200 41265.2856920141038.9584202 42126.52397203 41620.42206204 41945.62405205 43115.30747206 42560.7947720743104.7703208 44861.18988209 44556.92978210 45536.84481211 45970.28、65332212 45110.57473213 45833.98274214 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