【正文】 .......13 Design Notes.....................................................................................13 Design parameters.............................................................................14 Design calculations ...........................................................................14 Grit chamber .........................................................................................17 Design Notes.....................................................................................17VI Design parameters.............................................................................17 Design calculations ...........................................................................17 Fine grid...................................................................................................18 Design parameters.............................................................................18 Design calculations ...........................................................................19 Grit chanber ...........................................................................................21 Design Notes.....................................................................................21 Design parameters.............................................................................22 Hydrolysis acidification tank...................................................................26 Design parameters.............................................................................26 Volume calculations .........................................................................26 Water distribution system .................................................................27 distribution wells......................................................................................29 Design Notes.....................................................................................29 Design repuirements .........................................................................29 Design calculations ...........................................................................30 Biocontact oxidation tank.......................................................................32 Sedimentation tank ..................................................................................42 Known conditions.............................................................................42 Design parameters.............................................................................42 Design calculations ...........................................................................43 Disinfectant tank......................................................................................48 Design parameters.............................................................................48 Design calculations ...........................................................................48 Chlorination room..................................................................................49 Disinfectant.....................................................................................49 Chlorine dosage calculation............................................................49 sedimentation tank .................................................................................50 Design parameters...........................................................................50 Design calculations .........................................................................51 Blower housing......................................................................................54 Sludge storage tank................................................................................54VII Design parameters...........................................................................54 Design calculations .........................................................................54 Sludge pumping station .........................................................................55 Sludge dewatering machine room..........................................................56 Calculation of the amount of dewatered sludge..............................56 Dehydrator Selection ......................................................................57 Pump Selection sludge transportation.............................................58 Calculation of dosage......................................................................58 Regulation ponds ...................................................................................59 Volume calculation.........................................................................59Chapter 4 Description of major equipment........................................................60Chapter 5 Sewage treatment plant layout ..........................................................63 Layout of the sewage treatment plant ......................................................63 The principle of The layout ..............................................................63 Layout ...............................................................................................63 Elevation layout of the sewage treatment plant .......................................65 Elevation layout principle.................................................................65 Sewage treatment elevation calculation............................................66 Sludge treatment elevation calculation .............................................73chapter 6 the project budget and cost analysis...................................................77 Business anization ..............................................................................77 Situation of the enterprise .................................................................77 Labor quota.......................................................................................77 Investmen