4万吨日污水处理厂设计总说明书

4万吨每日污水处理厂设计总说明书

目录

摘要 (3)

ABSTRACT (5)

1.综述

1.1项目概况 (5)

1.2设计原则及目的 (5)

1.3设计规范依据 (6)

1.4设计基础资料 (7)

1.5城市概况和自然条件 (8)

1.6城市给水排水现状 (10)

1.7排水工程规划原则 (10)

1.8设计指导思想及意义 (11)

2.方案论证

2.1污水水量及水质的论证 (12)

2.2排水方案论证 (15)

2.3污水及污泥处理工艺方案介绍 (18)

2.4污水处理工艺方案比较 (29)

2.5污泥处理工艺方案比较 (33)

3.雨水管网设计

3.1污水管道系统 (36)

3.1.1比流量的确定 (36)

3.1.2污水管网方案选择 (37)

3.1.3污水管网的设计计算 (38)

3.1.4排水管道材料的选择 (39)

3.1.5附属构筑物的设计 (40)

3.1.6计算结果 (41)

3.2雨水管道系统的设计 (45)

3.2.1设计基本依据 (45)

3.2.2雨水管道的布置 (48)

3.2.3布置方案比较 (48)

3.2.4计算结果 (49)

4.污水处理厂设计

4.1设计依据 (52)

4.1.1污水处理规模 (52)

4.1.2进出水水质 (52)

4.2污水厂各构筑物的设计 (53)

4.2.1粗格栅 (53)

4.2.2提升泵房 (55)

4.2.3泵后细格栅 (56)

4.2.4旋流式沉砂池 (57)

4.2.5卡鲁塞2000氧化沟 (58)

4.2.6二沉池 (65)

4.2.7紫外线消毒池 (67)

4.2.8贮泥池 (68)

4.3污水处理厂主要构筑物及设备选型

4.3.1沉砂池系统 (69)

4.3.2立式表曝机 (71)

4.3.3带式污泥脱水机 (73)

4.3.4紫外线消毒设备 (75)

5.污水厂平面及高程的布置

5.1污水厂平面布置 (78)

5.2污水厂高程布置 (79)

5.3污水厂竖向设计 (80)

5.4厂区给水排水及通讯 (80)

5.5环保措施 (81)

5.6电气自动化控制 (82)

5.7主要辅助建筑物的设计 (83)

5.8厂区人员编制 (83)

考文献 (85)

致谢 (86)

摘要

随着我国社会经济的不断发展，城市化水平的逐步提高，环境保护措施的落实，以及市场经济的建立，排水事业作为城市的重要基础设施这一，也得到了蓬勃的发展。全国大多的城市都对老城区的给排水管网进行了改造，并且还兴建了一大批污水处理厂对城市的生活污水，工业废水进行处理。

本设计是对湖北省武穴市南湖排水工程设计。其设计范围包括：雨水管网工程、污水管网工程和污水处理厂工程。本次设计均采用了国家最新的有关规定、标准、和设计规范。

管网的体制采用的是分流制。主要受纳水体为由北向南流经该市东部的三明河,以及该镇附近的天然湖，处理后的污水直接排入三明河下游。

污水处理厂设计规模远期60000m3/d，故本设计按近期设计,远期规划。污水厂二级处理出水排至三明河下游。

污水处理厂处理流程为：污水→中格栅→提升泵房→细格栅→钟式沉砂池→卡鲁塞2000氧化沟→二沉池→紫外消毒→出水。

污泥流程：剩余活性污泥→污泥提升泵房→浓缩脱水一化车间→污泥外运。

本污水处理厂占地约为7.2公顷。

关键词：污水管网雨水管网污水处理厂

卡鲁塞2000氧化沟浓缩脱水一体化设备

ABSTRACT

With the develop of our country society economy continuously, Vitalization is gradually increasing, Environmental protection measure of practical, and with establishing of the Market economy, Draining, As one of the important foundation facilities, also got a fast development. The city in the whole nation almost reform drainpipe net. And still built the dirty water of large quantity disposal the factory to discard the water to proceed to handle to city.

This project is for designing sewerage engineering of the South Lake of Wuxue city in Hubei province. The design includes stremwater drainage system and wastewater collecting system and sewage works . And this design all adopted national latest relevant provision, Standard, with design the norm.

The system of pipe net adopts is the bridging system . The water body that may feed placing in San Ming River which is south-eastern side of sewage plant , and the sewage which is handled discharge into the San Ming River directly.

Sewage treatment plant design scale in the future date 60000m3/d . The rainfall is all putd in order into San Ming River and the handled sewage from the sewage plant put into the San Ming River.

The sewage treatment plant handle the distance travelled by a stream of water being : sewage →coarse screens→sewage elevated pumb house→fine screens→rotated Grit chamber→Carrousel©2000 oxidation ditch →secondary sedimentation tank →UV Sterilize in pool→San Ming River.

Sludge distance travelled by a stream of water : Remainder sludge→sludge elevated house →the concentration and dehydration workshop→Transport outside the sludge

Covers an area of and act as 7.2 hectares around in this the sewage treatment plant . Keywords: solid pipe net rainwater tule net Sewage treatment plant Carrousel 2000 oxidation ditch the concentration and dehydration workshop