【正文】
城鎮(zhèn)建設(shè)和工業(yè)發(fā)展規(guī)劃的基礎(chǔ)上,合理地分析當(dāng)?shù)厮Y源、水環(huán)境質(zhì)量和用水習(xí)慣,工業(yè)結(jié)構(gòu)以及及其鄰近地區(qū)城鎮(zhèn)供水經(jīng)驗(yàn),采用適當(dāng)方法,確定合適的用水指標(biāo),進(jìn)行用水量預(yù)測。 預(yù)測人口數(shù) 單位:萬人預(yù)測方法2011 年2020 年綜合增長法指數(shù)增長法根據(jù)兩種方法預(yù)測結(jié)果,確定2011 萬人,2020 萬人。n式中:Pt——預(yù)測目標(biāo)年末人口規(guī)模;P0——預(yù)測基準(zhǔn)年人口規(guī)模;r——人口年均綜合增長率;n——預(yù)測年限。1) 綜合增長法根據(jù)人口綜合年均增長率預(yù)測人口規(guī)模,按下式計(jì)算:Pt=P0(1+r)n式中:Pt——預(yù)測目標(biāo)年末人口規(guī)模;P0——預(yù)測基準(zhǔn)年人口規(guī)模;r——人口年均綜合增長率;n——預(yù)測年限。今后幾年,隨著某區(qū)經(jīng)濟(jì)社會(huì)快速發(fā)展,城鎮(zhèn)基礎(chǔ)設(shè)施條件及外部交通條件和投資環(huán)境的改善,城鎮(zhèn)建設(shè)將得到飛速發(fā)展;伴隨著未來長岳高速公路、長湘延伸公路、杭瑞高速公路復(fù)線和推山咀深水碼頭等重大基礎(chǔ)設(shè)施的建設(shè),以及國家積極推進(jìn)城鎮(zhèn)化的發(fā)展戰(zhàn)略的實(shí)施和“兩型社會(huì)”改革試驗(yàn)區(qū)的實(shí)踐,可以預(yù)計(jì),未來某區(qū)某鎮(zhèn)城鎮(zhèn)建設(shè)發(fā)展將進(jìn)入一個(gè)新的高峰時(shí)期,因此城鎮(zhèn)化水平將會(huì)大幅度的提高,大量的農(nóng)村人口將轉(zhuǎn)移到城鎮(zhèn),也將促進(jìn)城鎮(zhèn)人口的增加。本報(bào)告參照《城市人口規(guī)模預(yù)測規(guī)程》選取綜合增長法和指數(shù)增長法等方法對某區(qū)某鎮(zhèn)城鎮(zhèn)人口規(guī)模進(jìn)行預(yù)測分析。據(jù)此,本可行性研究認(rèn)為,某區(qū)污水處理工程的設(shè)計(jì)年限應(yīng)與規(guī)劃設(shè)計(jì)年限一致,預(yù)測年限以2008 年為基準(zhǔn)年,近期確定為2011 年,2020 年作為遠(yuǎn)期年限。b) 污水處理設(shè)施布局根據(jù)規(guī)劃用地布局和現(xiàn)狀用地條件,在某鎮(zhèn)余家坪居委會(huì)古塘岔建設(shè)污水處理廠。3) 污水系統(tǒng)規(guī)劃a) 污水治理的基本要求城市生活污水以集中處理為主,工業(yè)區(qū)的工業(yè)廢水先預(yù)處理再集中處理,經(jīng)治理的工業(yè)廢水必須符合國家現(xiàn)行排放標(biāo)準(zhǔn)方可排入城市下水道。d) 近遠(yuǎn)期結(jié)合,整個(gè)排水系統(tǒng)做到遠(yuǎn)期布置合理,近期建設(shè)切實(shí)可行。b) 加強(qiáng)污水治理,逐步完善污水系統(tǒng),嚴(yán)格保護(hù)湘江水體。2015 年, 萬人, 萬人; 2030年,某區(qū)某鎮(zhèn)總?cè)丝谶_(dá)到12 萬人, 萬人。4 建設(shè)規(guī)模 城鎮(zhèn)總體規(guī)劃分析 城鎮(zhèn)發(fā)展趨勢分析城市市政公共基礎(chǔ)失業(yè)的發(fā)展與整個(gè)城市的發(fā)展密切相關(guān),城市污水處理工程是城市建設(shè)的基礎(chǔ)設(shè)施,應(yīng)適應(yīng)城市的發(fā)展,且適當(dāng)超前。如果任其發(fā)展,不盡快采取消除對環(huán)境的污染,我們的環(huán)境質(zhì)量就會(huì)不斷惡化,環(huán)境的損失帶有持久性,而環(huán)境的惡化反過來就會(huì)制約社會(huì)和經(jīng)濟(jì)的發(fā)展,這已被無數(shù)事實(shí)所證明,并已成為有識(shí)之士的共同觀點(diǎn)。某區(qū)污水處理工程的建設(shè),不僅有利于城區(qū)內(nèi)部環(huán)境的改善,也有利于周邊環(huán)境質(zhì)量的改善,對于保護(hù)某區(qū)生態(tài)環(huán)境,保護(hù)人民的身體健康,發(fā)展生產(chǎn)力都有重要意義?!蹦硡^(qū)作為某市直轄區(qū),城市污水處理廠的建設(shè)任務(wù)非常緊迫。根據(jù)某市人民政府發(fā)布的《某市湘江流域水污染綜合整治實(shí)施方案》(岳政發(fā)[2008]22 號(hào))要求“以城鎮(zhèn)環(huán)境基礎(chǔ)設(shè)施建設(shè)為重點(diǎn),全面提高生活污水處理率”,“到2010 年,湘江流域我市段縣城都要建成生活污水處理設(shè)施,市城區(qū)和縣城污水處理率分別達(dá)到80%和50%以上。但是,由于新城區(qū)發(fā)展迅猛,城市建設(shè)日新月異,市政基礎(chǔ)建設(shè)未能跟上城市發(fā)展的需要,隨著城區(qū)的建設(shè),對原有生態(tài)環(huán)境破壞日趨加劇,城市水環(huán)境污染日益嚴(yán)重,工業(yè)廢水以及生活污水都直接排入湘江,對其水體水質(zhì)造成了污染,對河岸環(huán)境造成一定影響。 保護(hù)城區(qū)水體水質(zhì)和生態(tài)環(huán)境的需要某區(qū)的發(fā)展以生態(tài)環(huán)境為根本,對環(huán)境保護(hù)尤為重要。某區(qū)經(jīng)濟(jì)的繁榮發(fā)展,人民生活水平的進(jìn)一步提高,城市污水已成為當(dāng)前的環(huán)境保護(hù)工作熱點(diǎn)難點(diǎn)問題,廣大群眾對城市污水的有效治理呼聲十分強(qiáng)烈。此外,在開發(fā)建設(shè)過程中,私自占用城市下水道位置或在下水道上修建房屋,甚至毀壞城市排水設(shè)施,迫使順自然地形條件、自然水力條件設(shè)置的城市排水溝渠改道等現(xiàn)象也屢有發(fā)生。2) 市政排水管理不完善和不統(tǒng)一市政排水管理部門對已建排水設(shè)施應(yīng)進(jìn)行經(jīng)常性的維護(hù)保養(yǎng),還需對城市排水設(shè)施的使用進(jìn)行嚴(yán)格的監(jiān)督與管理。The fire broke out in the basement. I went down3 項(xiàng)目建設(shè)的必要性 完善城鎮(zhèn)基礎(chǔ)設(shè)施建設(shè)的需要1) 現(xiàn)有排水系統(tǒng)不完善某區(qū)經(jīng)多年的建設(shè),市政排水管道建設(shè)有了較大發(fā)展,但普遍存在排水管道系統(tǒng)不完善的狀況,現(xiàn)有主城區(qū)排水體制為合流制,有的地方干管缺少支管,有些地方有支管缺少干管,造成管道系統(tǒng)不配套、排水管網(wǎng)密度較小、不敷使用的情況。I was in my office as usual,39。 exclaimed his wife. 39。39。University students set the Embassy on fire this morning.39。A fireextinguisher, my dear,39。 39。What has happened ?39。When the Ambassador of Escalopia returned home for lunch, his wife got a shock. He looked pale and his clothes were in a frightful state. Experiments have proved that children can be instructed in swimming at a very early age. At a special swimming pool in Los Angeles, children bee expert at holding their breath under water even before they can walk. Babies of two months old do not appear to be reluctant to enter the water, It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool. A game that is very popular with these young swimmers is the underwater tricycle race. Tricycles are lined up on the floor of the pool seven feet under water. The children pete against each other to reach the other end of the pool. Many pedal their tricycles, but most of them prefer to push or drag them. Some children can cover the whole length of the pool without ing up for breath even once. Whether they will ever bee future Olympic champions, only time will tell. Meanwhile, they should encourage those among us who cannot swim five yards before they are gasping for air.One of the most famous monuments in the world, the Statue of Liberty, was presented to the United States of America in the nineteenth century by the people of France. The great statue, which was designed by the sculptor Auguste Bartholdi, took ten years to plete. The actual figure was made of copper supported by a metal framework which had been especially constructed by Eiffel. Before it could be transported to the United States, a site had to be found for it and a pedestal had to be built. The site chosen was an island at the entrance of New York Harbour. By 1884, a statue which was 151 feet tall, had been erected in Paris. The following year, it was taken to pieces and sent to America. By the end of October 1886, the statue had been put together again and it was officially presented to the American people by Bartholdi. Ever since then, the great monument has been a symbol of liberty for the millions of people who have passed through New York Harbour to make their homes in America.Fortunately, the shouting woke up my wife who opened the window just as the policeman had started to climb towards me. I shouted.39。39。Your what ?39。You see, I39。d prefer to stay here,39。39。s busy working, but would you mind ing with me to the station ?39。 answered the policeman in the same tone. 39。39。I enjoy cleaning windows at night.39。 I don39。Lesson92 Asking for trouble 自找麻煩Lesson91 Three men in a basket 三人同籃Though Brazil is one of the richest countries in the world, much of it has not yet been developed. It was mainly for this reason that the Brazilian government decided to have a new city built 600 miles northwest of Rio de Janeiro. Designed by the great architect Lucio Costa, the new city, Brasilia, replaced Rio de Janeiro as the capital of Brazif in 1960. Brasilia has been carefully planned for modern living. Its wide roads, which can take fourteen lanes of traffic, have been keptPeople will do anything to see a free showeven if it is a bad one. When the news got round that a variety show would be presented at our local cinema by the P. and U. Bird Seed Company, we all rushed to see it. We had to queue for hours to get in and there must have been several hundred people present just be fore the show began. Unfortunately, the show was one of the dullest we have ever seen. Those who failed to get in need not have felt disappointed as many of the artistes who should have appeared did not e. The only funny things we heard that evening came from the advertiser at the beginning of the programme. He was obviously very nervous and for some minutes stood awkwardly before the microphone. As soon as he opened his mouth, everyone burst out laughing. We all know what the poor man should have said, but what he actually said was: 39。Six men have been trapped