【正文】
iate triage facilities, pipelines, etc. beyond.Ⅲ Background information on designⅢ.Ⅰ Laiyang City sewage treatment plant informationThe design of Laiyang city sewage treatment plant is used for drainage works, and it is located Laiyang Jiaodong thorat pharyngeal area, that is, the central of Shandong Peninsula and southwest Yantai City. The east Drive is 120 176。Ⅱ.Ⅱ Design principlesConsider the city39。(Ⅷ) The design drawing of the treatment structures, the main supporting structures and the Nonstandard equipment 。(Ⅵ) Design calculation and selection of the main equipment。(Ⅳ) the design Calculation of the treatment structures or facilities。(Ⅱ) The process design explanation of treatment plants 。主要構(gòu)筑物設(shè)計結(jié)果見下表Ⅱ表Ⅱ 主要處理構(gòu)筑物一覽表序號 構(gòu)筑物名稱 數(shù)量(座/格) 尺寸(單: m)續(xù)表Ⅱ1 中格柵 3 2 污水提升泵房 1 3 細(xì)格柵 2 4 沉砂池 2 5 初沉池 16 6 A2/O 反應(yīng)池 4 山東萊陽市 8 萬 m3污水處理廠設(shè)計(A 2/ O 工藝)第 4 頁 共 88 頁7 鼓風(fēng)機房 1 8 二沉池 2 φ 429 接觸池 2 10 污泥泵房 1 11 污泥濃縮池 2 φ 12 貯泥池 1 Design Genneral InformationChina has a vast territory, different climate, and the level of economic development is also a great difference. Currently, cities are faced with different water pollution. Thus, according to the size of the cities to establish a set of economic development and their adaptation to control water pollution, protection of water environment policy, standards and regulations, at the same time, building and the level of economic development of the sewage treatment plant, has bee to prevent shortage of water resources and constraints of urban socioeconomic development of the necessary means. So people have to use the part of the limited resources. In people39。Ⅳ 污水處理工藝根據(jù)國內(nèi)外已運行的中、小型污水處理廠的調(diào)查,要達到確定的治理目標(biāo),本設(shè)計可采用“A 2/O 活性污泥法” 。 進出水水質(zhì)進出水質(zhì)指標(biāo)見下表Ⅰ:表Ⅰ 進出水質(zhì)指標(biāo)水質(zhì)指標(biāo)單位mg/L COD BOD5 SS TN TP進水 450 200 200 35 出水 60 20 20 8 萊陽市污水處理廠處理后的出水排入蜆河,而蜆河為 Ⅳ 類功能水體,要求排入其內(nèi)的出水必須滿足當(dāng)時現(xiàn)行的《污水綜合排放標(biāo)準(zhǔn)》 (GB189182022)一級 B 排放標(biāo)準(zhǔn)(COD ≤60;BOD 5≤20; SS≤20; TN≤20; TP≤;) 。 處理規(guī)模根據(jù)萊陽市總體規(guī)劃、排水系統(tǒng)狀況、預(yù)測污水量和經(jīng)濟發(fā)展?fàn)顩r,確定萊陽市污水處理廠設(shè)計總規(guī)模為 80000m3/d,變化系數(shù)取為 。污水將通過管道通過輸送到污水廠。 ,廠區(qū)山東萊陽市 8 萬 m3污水處理廠設(shè)計(A 2/ O 工藝)第 2 頁 共 88 頁地勢由北向南傾斜,西北高東南低,平均地面坡度為 5176。(Ⅲ)場區(qū)地形 污水處理廠擬用場地目前較為平整。極端氣溫:最低為℃ ,最高為 ℃ 。 萊陽市氣候環(huán)境概況(Ⅰ)風(fēng)向 主導(dǎo)風(fēng)向為東南風(fēng), 西北風(fēng)。2022 年污水排放量約為 4 萬 m3/d,其中 30% 的污水量排入蜆河,70 % 的污水量排入自然排水溝,由自然排水溝在城區(qū)下游匯入蜆河,城市污水經(jīng)蜆河、五龍河最終排入黃海。萊陽市區(qū)地勢北高南低,北部、東部、西南部均有山巒起伏的低山丘陵群。34‘ˊ10”37176。31‘ˊ120176。(Ⅵ)污水廠設(shè)計必須考慮安全運行的條件,如適當(dāng)設(shè)置分流設(shè)施、超越管線等。在經(jīng)濟合理的原則下,必須根據(jù)需要,盡可能采用先進的工藝、機械和自控技術(shù),但要確保安全可靠。設(shè)計完成后,總體布置、單體設(shè)計及藥劑選用等要盡可能采取合理措施降低工程造價和運行管理費用。(Ⅱ)污水廠設(shè)計采用的各項設(shè)計參數(shù)必須可靠。首先確保污水廠處理后達到排放標(biāo)準(zhǔn)。山東萊陽市 8 萬 m3污水處理廠設(shè)計(A 2/ O 工藝)第 0 頁 共 88 頁山東萊陽市 8 萬 m3/d 污水處理廠工藝設(shè)計畢業(yè)論文2 設(shè)計內(nèi)容及原則 設(shè)計內(nèi)容污水處理廠工藝設(shè)計流程設(shè)計說明一般包括以下內(nèi)容:(Ⅰ)據(jù)城市或企業(yè)的總體規(guī)劃或現(xiàn)狀與設(shè)計方案選擇處理廠廠址;(Ⅱ)處理廠工藝流程設(shè)計說明;(Ⅲ)處理構(gòu)筑物型式選型說明;(Ⅳ)處理構(gòu)筑物或設(shè)施的設(shè)計計算;(Ⅴ)主要輔助構(gòu)筑物設(shè)計計算;(Ⅵ)主要設(shè)備設(shè)計計算選擇;(Ⅶ)污水廠總體布置(平面或豎向)及廠區(qū)道路、綠化和管線綜合布置;(Ⅷ)處理構(gòu)筑物、主要輔助構(gòu)筑物、非標(biāo)設(shè)備設(shè)計圖繪制;(Ⅸ)編制主要設(shè)備材料表。 設(shè)計的原則考慮城市經(jīng)濟發(fā)展及當(dāng)?shù)噩F(xiàn)有條件,確定方案時考慮以下原則:(Ⅰ)要符合適用的要求??紤]現(xiàn)實的技術(shù)和經(jīng)濟條件,以及當(dāng)?shù)氐木唧w情況(如施工條件) ,在可能的基礎(chǔ)上,選擇的處理工藝流程、構(gòu)(建)筑物型式、主要設(shè)備、設(shè)計標(biāo)準(zhǔn)和數(shù)據(jù)等,應(yīng)最大限度地滿足污水廠功能的實現(xiàn),使處理后污水符合水質(zhì)要求。(Ⅲ)污水處理廠設(shè)計必須符合經(jīng)濟的要求。(Ⅳ)污水處理廠設(shè)計應(yīng)當(dāng)力求技術(shù)合理。(Ⅴ)污水廠設(shè)計必須注意近遠期的結(jié)合,不宜分期建設(shè)的部分,如配水井、泵華北科技學(xué)院畢業(yè)設(shè)計第 1 頁 共 88 頁房及加藥間等,其土建部分應(yīng)一次建成;在無遠期規(guī)劃的情況下,設(shè)計時應(yīng)為以后的發(fā)展留有挖潛和擴建的條件。3 設(shè)計背景資料 萊陽市污水處理廠資料本設(shè)計是萊陽市排水工程的設(shè)計,萊陽市系膠東咽侯地帶,位于膠東半島中部,煙臺市西南部,地處東徑 120176。59‘ˊ12” ,北緯 36176。ˊ52”之間,東臨海陽市,西接萊西市,西北毗鄰招遠市,北界棲霞市,南靠即墨市,東南隅瀕臨黃海的丁字灣。萊陽市污水廠建成運行前蜆河和城區(qū)內(nèi)的自然排水溝是市區(qū)內(nèi)的主要排污河道。污水廠建成運行前城市污水不經(jīng)處理就直接排放,嚴(yán)重影響了下游河道沿岸人民的飲用水水質(zhì)和黃海入口處的漁業(yè)生產(chǎn),萊陽市污水處理廠的建成運行,保護了環(huán)境,改善了水質(zhì),保證了人民的身體健康和漁業(yè)的生產(chǎn)。(Ⅱ)氣溫 屬溫帶季風(fēng)型大陸性氣候,冬暖夏涼,四季分明,平均溫度為 度,年平均降雨量為 800mm ,最冷月平均氣溫為4 ℃ ,最熱月平均氣溫為 25℃ 。最大凍土深度為 51cm(1968 年 2 月),共有 3 天。假定平整后廠區(qū)的地面標(biāo)高為177。~15176。 污水處理出水接納河流 該污水廠的出水直接排入廠區(qū)外部的蜆河,其常年最高水位為7. 00m。污水廠的處理水量按最高日最高時流量設(shè)計,一次設(shè)計,分兩期實施。另外根據(jù)萊陽市環(huán)保局的要求以及萊陽市實際情況污水處理廠出水也應(yīng)滿足該標(biāo)準(zhǔn)。設(shè)計工藝流程圖如下圖 Ⅰ:華北科技學(xué)院畢業(yè)設(shè)計第 3 頁 共 88 頁中 格 柵 提 升 泵房沉 砂 池 配 水 井 初 沉 池 厭 氧 池 缺 氧 池 好 氧 池二 沉 池污 泥 泵 房濃 縮 池貯 泥 池脫 水 間接 觸 池砂 水 分 離泥餅砂排 水消 毒 劑初 次污 泥 混 合 液 回 流回流污泥超越管細(xì) 格 柵圖 Ⅰ 工藝流程圖Ⅴ 設(shè)計結(jié)果本工程處理構(gòu)筑物包括中格柵間及提升泵房、細(xì)格柵及平流式沉砂池、初沉池、A2/O 反應(yīng)池、二沉池、接觸消毒池、污泥濃縮池、貯泥池;附屬構(gòu)筑物包括鼓風(fēng)機房、加氯間、污泥脫水機房以及綜合辦公樓、公寓樓機修間、倉庫等。s daily life, toilet, shower and washing all of life can not be separated from water, with sewage. In industrial enterprises, almost no industrial water is essential to daily life precious resource. Water supply and discharge treated water is not reasonable to the water. Water used by the production process, and the vast majority of wastewater is produced. Carrying a large quantity of wastewater pollutants, most of these substances are harmful and toxic, but it is also useful. So they have to be properly handled or recycled.Ⅰ Design TitleShandong Laiyang 80,000 m3 / d sewage treatment plant process design (A2 / O process)Ⅱ Design content and principlesⅡ.ⅠDesign content華北科技學(xué)院畢業(yè)設(shè)計第 5 頁 共 88 頁Sewage treatment plant process design process design that generally includes the following(Ⅰ) According to the city or business or the status of the overall planning and design of programs to choose treatment plant site。(Ⅲ) The explanation of treatment structure type and selection。(Ⅴ) Design calculation of the main supporting structure。(Ⅶ) The overall layout of wastewater treatment plant (flat or vertical) and plant roads, afforestation and integrated arrangement of pipelines。(Ⅸ) The preparation of major equipment and materials table。s economic development and local existing conditions, determine the program to take into account the following principles:(Ⅰ) to ply with applicable requirements. First of all, to ensure that the sewage treatment plant to meet emission standards. Consider the realities of the technical and economic conditions, as well as the specific local situation (such as the construction of the conditions), where possible, based on the treatment of choice of process, structure (building) the building type, major equipment, design standards and data should be the largest Wastewater Treatment Plant to meet the limits of realiz