【正文】 esearch to meet the application. There are two innovations: first, the study was based on constructed wetland practical engineering, mesocosm and microcosm, and an integrated method of plant selection, configuration and management was obtained。 thus, it could decrease the risk caused by monoculture. Furthermore, it could provide better sight.2 Based on the microcosm experiment, the concentration of the pollutants in the output decreased sharply in the first month after the plants were transplanted. And then it continued to fall but in a smaller range till the end of the experiment. The microcosms with plants removed more TN than the sand filters did。與前人的相關(guān)研究相比，本研究立足工程運行實際，著重進行植物研究，具有以下兩個創(chuàng)新之處：第一，將實際運行工程、人工濕地中試系統(tǒng)和人工濕地微系統(tǒng)三個層次結(jié)合起來研究，探索了一套有效的植物篩選、配置和管理的方法；第二，結(jié)合水流方式上的差異，分別在下行植物床和上行植物床進行了植物篩選實驗，得出了不同水流條件下的植物篩選原則，該原則是對傳統(tǒng)的植物篩選方法和原則的一個補充。下行植物床和上行植物床串聯(lián)克服了單一植物床的不足，可以滿足不同污染物去除所需的條件，同時去除多種污染物，提高人工濕地系統(tǒng)的綜合去污能力。TN和NH3N的去除率達到40%左右，磷的去除率超過80%。植物凋落物是導致表面板結(jié)的原因之一，選擇合適的人工濕地植物和對植物進行合理管理能減少植物凋落物的量，從而減輕表面板結(jié)程度。，植物對氮磷的吸收量相對工程總?cè)コ勘壤^小，植物吸收不是人工濕地氮磷去除的主要途徑。，植物移栽后的一個月左右的時間里，排出水中污染物濃度急劇下降，之后，出水中各污染物濃度繼續(xù)保持較小幅度的下降趨勢。生長觀測和去污能力檢驗相結(jié)合的二次篩選方法是進行人工濕地植物大規(guī)模篩選的有效方法。本研究在實際運行人工濕地系統(tǒng)、人工濕地中試系統(tǒng)和人工濕地微系統(tǒng)三個層面上，通過對人工濕地植物和水質(zhì)進行調(diào)查檢測，系統(tǒng)研究了人工濕地植物篩選、植物配置、植物在人工濕地中的作用、植物生長過程中污染物去除規(guī)律及復合垂直流人工濕地的運行規(guī)律等，得出以下主要結(jié)果：（Calla palustris）、薏苡（Coix lacryma）、象草（Pennisetum purpureum）、血莧（Iresine herbstii）等18種適合下行植物床和水芋、薏苡、象草等14種適合上行植物床的人工濕地植物。 分類號 密級 UDC 編號 碩士學位論文垂直流人工濕地植物配置研究 利用垂直流人工濕地處理生活污水研究摘 要污水處理人工濕地是一種新興的廢水處理技術(shù)，由耐污染的植物、不同粒徑的砂礫及大量微生物、藻類和微小動物組成的完整生態(tài)系統(tǒng)。垂直流人工濕地是近年發(fā)展較快、應(yīng)用較廣泛的一種工藝形式。之后，利用人工濕地微系統(tǒng)對部分初步篩選的植物進行去污能力檢測。多植物配置在保證較好的污水處理效果的同時，還可以提高植物適應(yīng)人工濕地環(huán)境各種脅迫的能力及抵御病蟲害的能力，降低因單一植物建植帶來的風險及增強景觀效果等。植物系統(tǒng)比沙濾系統(tǒng)能去除較多的總氮（TN），但對于總磷（TP）和化學需氧量（CODCr）則沙濾系統(tǒng)好于植物系統(tǒng)。植物影響人工濕地表面板結(jié)物的形成，植物覆蓋度越大，板結(jié)物越少。，污水經(jīng)處理后，CODCr和BOD5去除率達到60%以上。其中，CODCr、BODTN和NH3N主要在下行植物床中被去除，且下行植物床和上行植物床之間的出水濃度無顯著差異；磷的去除主要集中在上行植物床，且下行植物床和上行植物床出水磷濃度差異達到極顯著。，但這種差異并未導致出水水質(zhì)產(chǎn)生明顯差異，人工濕地出水水質(zhì)相對穩(wěn)定。關(guān)鍵詞： 人工濕地 植物篩選 植物配置 垂直流 污水凈化Plants Configuration in Vertical Flow Constructed WetlandsBy Chunchang LiuDirected by Prof. Hai Ren, Prof. Hanping Xia AbstractConstructed wetland is an integrated artificial ecosystem efficient for sewage treatment, consisted of substrate of different sizes, pollutantresistant plants, and microorganism including bacteria, alga, protozoan and so on. Vertical constructed wetland is one of a fast developed and wide used type in recent years. Based on the constructed wetland practical engineering, mesocosm and microcosm, the research focused on plant species selection, configuration and function in constructed wetlands, wastewater degradation in the course of plant growth, and some principles of the pollutants deposition in the plex vertical constructed wetland. The results are as follows:1 In the experiment, eighteen plant species such as C. palustris, C. lacryma, P. purpureum, I. herbstii and so on, were selected as constructed wetland plants for the downflow plantbed (DFPB) and fourteen for the upflow plantbed (UFPB) including C. palustris, C. lacryma and P. purpureum. And further study was carried out to test the efficiecy of pollutants degradation. It is effiecient for massive plants selection of constructed wetland to connect with plant investigation and treatment efficiency test.Plants configuration could enhance the plants’ resistance in the contaminated environment and the capability to avoid plant diseases and insect pests。 but as to the removal of TP and CODCr, it went to the opposite.3 In Shenzhen Shiyanhe constructed wetland, nitrogen and phosphorus absorbed by plants only accounted for a small part of those diminished by the system as a whole. And plant absorption is not a main approach to decrease the pollutants. Further study indicated that plants had impact on the stratum of the substrate surface, that is, the larger plant coverage was, the less superstratum was. The plants’ litter was also a cause of the superstratum, and it is a good way to decrease the superstratum to select suitable plant species and manage them logically.4. In plex vertical constructed wetland, most of the pollutants were released, with the removal rates over 60% for CODCr and BOD5, 40% for TN and NH3N and 80% for P. Most CODCr, BOD5, TN and NH3N were removed in the DFPB, and there were no significant difference of the output concentration between the DFPB and UFPB。 second, the plant selection was developed between the DFPB and UFPB, and several principles of species selection came into being which is plementary to traditional ones. Key words: constructed wetland, plant selection, plant configuration, vertical flow, wastewater purification目 錄摘要…………………………………………………………………………………....ⅠAbstract…………………………………………………………………………….….Ⅲ前言……………………………………………………………………………………1第一章 污水處理人工濕地概述……………………………………………………..31 污水處理方法種類………………………………………………………………………………32人工濕地概述…………………………………………………………………………………….3……………………………….………………………………….3……………………………………………………….………….4……………………………………………………………………………..5…………………………………………………………………………………..93人工濕地研究現(xiàn)狀和趨勢……………………………………………………………………….9………………………………………………………………………………..9………………………………………………………………………………11第二章 研究方法…………………………………………………………………131人工濕地系統(tǒng)構(gòu)建及運行……………………………………………………………………...13…………………………………………………………………………13………………………………………………………………………14………………………………………………………………162植物調(diào)查測定方法……………………………………………………………….……………..16………………………………………………………………………………………162. 1微系統(tǒng)………………………………………………………………………………………...162. 2植物床………………………………………………………………………………………...162. 3石巖河人工濕地……………………………………………………………………………...163水質(zhì)采樣和測試方法…………………………………………………………………….……..17……………………………………………………………………………………...….17……………………………………………………………………………………...….17………………………………………………………………………………17………………………………………………………………………..……….17………………………………………..…………