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摘要此设计为某开发区8万吨/d污水处理厂工艺设计，此设计包括污水处理工艺的设计及相关计算。本课题要求为：独立完成某开发区污水处理工艺设计方案，并绘制图纸。要求依据设计原始资料进行方案比选，从而选择最佳的设计方案，确定污水处理工艺流程，进行各个构筑物的绘图及计算，最后完成该课题的设计说明书以及制图，达到预期目标。
污水处理厂设计为处理规模为80000 m3/d，总变化系数Kz =1.315。进水水质：CODCr=650 mg/L；BOD5=250 mg/L；SS=250 mg/L；TN总氮含量=65 mg/L；NH3-N=55 mg/L；磷酸盐（以P计）=5.5 mg/L；pH=6～9。出水水质按照《城镇污水处理厂污染物排放标准》一级 A 标准，要求出水水质达到：CODCr≤50 mg/L；BOD5≤10 mg/L；SS≤10 mg/L；TN≤15 mg/L；NH3-N≤5 mg/L；磷酸盐（以P计）≤0.5 mg/L；pH=6～9。42071
污水处理厂处理工艺流程为：污泥处理工艺流程为：
最终绘制cad图包括：总平面布置图 主要构筑物图 工艺流程图
毕业论文关键字：污水处理工艺计算 污泥处理工艺计算
ABSTRACT The design for the sewage treatment plant process design of a development zone 80 thousand tons of /d, this design includes the design of the sewage treatment process and related calculation.
This subject requires that the independent completion of sewage treatment process design scheme of a development zone, and drawing. Is required to be familiar with and master the drainage engineering design content and design principles, methods and steps, according to the design of original design data, the correct selection of the design scheme, master the basic process of the design of wastewater treatment plant and the structure design method, familiar with the design calculation and design specification of the written content and preparation method, and draw engineering drawings.
Sewage treatment plant is designed to deal with the scale of 80000 Kz, the total change coefficient =1.315 m3/d. Water quality: mg/L BOD5=250; mg/L CODCr=650; mg/L SS=250; TN total nitrogen content mg/L =65; mg/L NH3-N=55; phosphate (P) mg/L =5.5; pH=6 ~ 9. Water the implementation of "urban sewage treatment plant pollutant discharge standard" (GB 18918 -- 2002) level a standard, the effluent quality reached: CODcr is less than or equal to 50 mg / L; BOD5 is less than or equal to 10 mg / L; SS is less than or equal to 10 mg / L; TN is less than or equal to 15 mg / L; NH3-N is less than or equal to 5 mg / L; phosphate (P) is equal to or less than 0.5 mg / L; pH = 6 ~ 9.
Sewage treatment plant to handle process: sewage→coarse grid,→improve pumping station→fine grill→vortex sink sand pool→oxidation ditch→disinfection pool→water.
Sewage treatment plant to handle process: sewage, coarse grid, improve pumping station, fine grille, vortex sink sand pool, oxidation ditch, disinfection pool, water.
Sycon alternating operation of oxidation ditch reactor pool of surplus sludge gravity flow to sludge homogeneous reservoir mud pool, and then through the concentrated sludge removal filter press dewatering. Press the filtrate through the outdoor drainage pipe flowing into sump two times of treatment. Mechanical debris Sinotrans disposal pretreatment facilities to produce, use from landfill sludge filter into the mud cake after.
The final drawing CAD including process flow diagram, general layout, main structure diagram.
Keywords: sewage treatment process sludge treatment processs
目录
摘要 4
ABSTRACT 6
绪 论 7
1.工程规模和处理水质要求 8
1.1工程规模