二沉池设计(国外英文资料).doc

二沉池设计(国外英文资料) Course design report Design subject: the design of wastewater treatment of two sinks in an economic development zone Students name: aged 010302122 Professional class: ringman 101 Advisor: huang jianhui Institute of environment and life engineering In November 2013, Orders to record A, design the raw data... 3 Second, the design principle... 3 Three, the design on the basis of... 4 Four, the calculation in the design of the second pond... 4 1 second pond, the main design... 4 2 the second pond water design... ... .. 6 3 the second pond water design... 7 Part four sludge calculation... 8 Five, the design summary or conclusion... 9 References... 9 2 2 The design of a water sink in an economic development zone First, design the original data Water intake 30,000 m3 / d, K = 1.4; Tail water discharge according to four kinds of water quality control standards, implement national water-quality urban sewage treatment plant pollutant discharge standard (GB18918-2002) in the secondary emission standards. Design, water quality Table 1 sewage in and out of the water quality project BOD5 COD SS NH3 - N TP Water (mg/L) 230 400 250 20 5 Water out (mg/L) 20 60 20 15 0.5 Process the process flow with A/O technology. The present sewage treatment plant is gradually decreasing from north to south, and the ground slope is 5%. Space coordinates X (m) 0 0 200 200 Y (m) 0 300 0 300 Ground level (m) 40 55 40 55 The bottom elevation 53 m tube diameter 500 mm, full degree h/D = 0.5 The sewage drains and drains the river in the southeast corner of the field, the highest flood water level 37 m Second, design principle The treatment effect is stable, the water quality is good The technology is advanced and the management is convenient The infrastructure investment is small and the area is small Three, design basis Outdoor drainage design code gb50014-2006 The water supply and drainage design handbook The rapid design manual of the water supply and drainage project Design standards