毕业设计-啤酒厂废水处理工艺设计

.

;. 摘要

本文针对啤酒车间废水处理工艺进行初步设计。啤酒废水含有许多有机的物质，这些有机物浓度较高，虽然无毒，但易于腐败，排入水体要消耗大量的溶解氧，对水体环境造成严重危害。

啤酒废水中BOD5/CODcr值高，在50％及以上，非常有利于生化处理。同时生化处理与物理法、化学法相比较；一是处理工艺比较成熟；二是处理效率高，CODcr、BOD5去除率高，一般可达80％~90％以上；三是处理成本低（运行费用省）；经过对各种处理工艺的对比，最终选择水解酸化+生物接触氧化作为处理工艺。

本工艺流程设有格栅、调节池，对污水进行预处理，去除水中较大的悬浮颗粒和调节水质水量。生化处理采用生物接触氧化法，可提高有机物去除效率。沉淀池用来进行泥水分离。

本流程简单稳定，对水量、水质的变化有很强的适应能力，同时确保出水的COD、BOD和SS以及总氮，总磷指标达到标准。通过初步预算，该工艺也将带来可观的经济效益和良好的环境效益。

本文对格栅、调节池、水解池、生物接触氧化池、沉淀池、污泥池等主要构筑物进行计算，编制设计说明书，并绘制工艺流程、构筑物平面及高程、主要构筑物共八张图纸。

关键词：

啤酒废水；水解酸化；生物接触氧化； .

;.

Abstract

According to the beer effluent treatment plant preliminary design process.

Beer wastewater containing many organic substances, these high organic

concentration, although non-toxic, but easy to corruption, discharged into the

water body will consume large amount of dissolved oxygen, causing serious

pollution of water environment.

The value of BOD5\CODcr of brewery wastewater is high, in the 50% and

above, is very conducive to biochemical treatment. At the same time,

biochemical treatment and physical method, chemical method are compared; one

is processing technology more mature; two is the high treatment efficiency, high

removal rate of CODcr, BOD5, generally up to 80%~90%; three is the low

processing cost (cost); after comparing the various treatment processes, the final

choice of hydrolytic acidification-biological contact as the process of oxidation.

This process is arranged in the grid, regulation pool, pretreatment of

wastewater, the removal of larger particles suspended in the water and water

quality regulation. Biological treatment by biological contact oxidation method,

can improve the removal efficiency of organic compounds. Sedimentation tank

for slurry separation.

This simple process stability, change of water flow, water quality has a

strong ability to adapt, while ensuring that the effluent COD, BOD and SS as

well as the total nitrogen, total phosphorus index reaches the standard. Through

the preliminary budget, this process will bring considerable economic benefits

and environmental benefits.

Regulation pool, the grille, hydrolysis tank, biological contact oxidation

tank, sedimentation tank, sludge tank main structures are calculated, prepare the

design specification, and rendering process, structures plane and elevation, the .

;. main structures of eight drawings.

Keywords: beer wastewater; hydrolytic acidification; biological contact

oxidation;

.

;.

目录

1绪论................................................................................................................. 6

1.1工厂所在地概况...................................................................................... 6

1.2啤酒废水来源及特点.............................................................................. 7

1.3啤酒废水主要处理工艺.......................................................................... 7

1.3.1好氧工艺....................................................................................... 7

1.3.2厌氧工艺....................................................................................... 9

1.3.3厌氧－好氧工艺......................................................................... 11

1.4处理工艺确定........................................................................................ 13

1.4.1设计任务及标准......................................................................... 13

1.4.2处理工艺选择............................................................................. 14

2水处理构筑物参数计算............................................................................... 17

2.1格栅........................................................................................................ 17

2.2调节池.................................................................................................... 21

2.3水解池.................................................................................................... 25

2.4接触氧化池............................................................................................ 28

2.5沉淀池.................................................................................................... 31

3污泥处理系统............................................................................................... 35

4管道布置....................................................................................................... 38

4.1污水管道................................................................................................ 38

4.2污泥管道................................................................................................ 39