發(fā)布時(shí)間：2018-03-31 03:13

  本文選題：山地村鎮(zhèn)　切入點(diǎn)：上向流沉淀　出處：《重慶大學(xué)》2014年碩士論文

【摘要】：農(nóng)村地區(qū)飲水安全問題一直受到廣泛關(guān)注，國(guó)務(wù)院要求在“十二五”期間，使全國(guó)農(nóng)村集中式供水人口比例提高到80%左右。西部山地村鎮(zhèn)地區(qū)具有地形復(fù)雜、居住分散、經(jīng)濟(jì)落后等一系列特點(diǎn)，研究一種適合山地村鎮(zhèn)的供水技術(shù)是很有必要的。 新型螺旋斜板上向流沉淀技術(shù)和新型螺旋斜板下向流沉淀技術(shù)均是較為高效的沉淀技術(shù)，適合安裝在一體化設(shè)備中。為了對(duì)比二者的沉淀效率，設(shè)計(jì)、加工了單通道的上向流和下向流螺旋斜板。用混合有嘉陵江泥沙的自來水作為試驗(yàn)用水，分別研究了上向流和下向流螺旋斜板通道在不同液面負(fù)荷下對(duì)濁度的去除效果。試驗(yàn)結(jié)果表明，液面負(fù)荷對(duì)上向流螺旋斜板的影響較大，下向流螺旋斜板的液面負(fù)荷可達(dá)到上向流螺旋斜板的3.75倍。 相對(duì)于新型螺旋斜板下向流一體化設(shè)備，新型螺旋斜板上向流一體化設(shè)備具有耗材少、加工方便、抗?jié)岫蓉?fù)荷能力強(qiáng)的優(yōu)點(diǎn)。為解決重慶市合川區(qū)甘家壩居民的供水問題，設(shè)計(jì)建造了新型上向流螺旋斜板一體化凈水設(shè)備，同時(shí)研究了設(shè)備對(duì)嘉陵江原水的處理效果。 在調(diào)試試驗(yàn)中，一體化凈水設(shè)備對(duì)正常濁度的原水和暴雨期間的高濁度原水均有良好的處理效果。連續(xù)運(yùn)行期間，合川區(qū)疾控中心對(duì)出廠水進(jìn)行檢測(cè)，相關(guān)指標(biāo)均滿足《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》要求。 一體化凈水設(shè)備在甘家壩的成功應(yīng)用，為山地村鎮(zhèn)供水提供了寶貴的經(jīng)驗(yàn)。由于山地村鎮(zhèn)各方面水平的落后，一體化設(shè)備的具體運(yùn)行管理還存在諸多問題，有必要探究一套適宜于山地村鎮(zhèn)供水系統(tǒng)的運(yùn)行管理方法。
[Abstract]:The issue of drinking water security in rural areas has been receiving extensive attention. The State Council has requested that the proportion of rural water supply population in the whole country be increased to about 80% during the 12th Five-Year Plan period. The mountainous villages and towns in the west have complex topography and scattered residence. A series of characteristics such as economic backwardness, it is necessary to study a water supply technology suitable for mountain villages and towns. The new upward flow sedimentation technology of helical inclined plate and the downward flow sedimentation technology of new spiral inclined plate are more efficient sedimentation technology, which is suitable for installation in the integrated equipment. In order to compare the sedimentation efficiency between them, the design, Spiral inclined plates with single channel upward and downward flow were processed. Tap water mixed with silt from Jialing River was used as experimental water. The turbidity removal effects of upward flow and downward flow spiral inclined plate channels under different liquid level loads are studied respectively. The experimental results show that the liquid level load has a great effect on the upward flow spiral inclined plate. The liquid surface load of the downward flow helical inclined plate is 3.75 times of that of the upward flow helical inclined plate. Compared with the new type of downward flow integration equipment of helical inclined plate, the new type spiral inclined plate upward flow integrative equipment has the advantages of less consumable material, convenient processing and strong turbidity load resistance. In order to solve the water supply problem of Ganjiaba residents in Hechuan District of Chongqing City, A new type of integrated water purification equipment with upward flow helical inclined plate was designed and constructed, and the treatment effect of the equipment on the raw water of Jialing River was studied. In the commissioning test, the integrated water purification equipment has good treatment effect on the raw water of normal turbidity and the raw water with high turbidity during heavy rain. During the continuous operation, the CDC of Hechuan District detects the outgoing water. All the related indexes met the requirement of drinking water hygienic standard. The successful application of integrated water purification equipment in Ganjiaba has provided valuable experience for water supply in mountain villages and towns. Due to the backwardness of various levels in mountain villages and towns, there are still many problems in the concrete operation and management of the integrated water purification equipment. It is necessary to explore a set of operation and management methods suitable for mountain villages and towns water supply system.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU991.2

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