發(fā)布時(shí)間：2018-02-10 20:16

  本文關(guān)鍵詞： 人工濕地 水生植物 養(yǎng)殖廢水 凈化效果　出處：《中國(guó)林業(yè)科學(xué)研究院》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：養(yǎng)殖廢水因其氨氮、總磷、有機(jī)物及懸浮物濃度高,容易給自然環(huán)境帶來(lái)長(zhǎng)期的、不可逆的影響,是目前廣大農(nóng)村地區(qū)面源污染的重要起因之一。雖然有較多的專(zhuān)家和學(xué)者致力于養(yǎng)殖廢水的處理研究,提出了許多可供選擇的工藝方法,然而這些方法中,一級(jí)或二級(jí)的工藝處理即便可以凈化養(yǎng)殖廢水中大部分的氨氮、總磷、有機(jī)物及懸浮物,但如果想要實(shí)現(xiàn)更高的排放要求,就必須進(jìn)行更深入的后續(xù)處理,而人工濕地處理系統(tǒng)則是后續(xù)處理工藝的最佳選擇之一。本研究依據(jù)人工濕地對(duì)植物的選擇要求,從植物在污水中的生長(zhǎng)情況、耐污性及去污效果等方面開(kāi)展研究,結(jié)合湘南地區(qū)植物分布情況,選擇了蘆葦、蕹菜和水葫蘆作為研究對(duì)象,通過(guò)試驗(yàn)研究,分析了三種植物及植物組合對(duì)人工配置的五組養(yǎng)殖廢水的處理效果,取得了如下研究成果:(1)三種水生植物及植物組合對(duì)養(yǎng)殖廢水中氨氮的去除效率在42%-76.5%之間,對(duì)總磷的去除效率在58%-91.25%之間,對(duì)化學(xué)需氧量的去除效率在43.75%-87.25%之間。(2)從單一植物的處理能力分析,呈現(xiàn)水葫蘆蕹菜蘆葦?shù)内厔?shì);植物組合方面,“蘆葦-水葫蘆”組合“蘆葦-蕹菜”植物組合,且植物組合的去除效率明顯優(yōu)于單一植物�；谝陨涎芯砍晒�,建議湘南地區(qū)選擇人工濕地處理養(yǎng)殖廢水的植物時(shí),可首選水葫蘆或考慮“蘆葦-水葫蘆”組合。
[Abstract]:Because of its high concentration of ammonia nitrogen, total phosphorus, organic matter and suspended solids, aquaculture wastewater is easy to bring long-term, irreversible effects to the natural environment. It is one of the important causes of non-point source pollution in rural areas at present. Although there are many experts and scholars devoted to the treatment of aquaculture wastewater, many alternative process methods have been put forward, but in these methods, The primary or secondary process can purify most of the ammonia nitrogen, total phosphorus, organic matter and suspended matter in the aquaculture wastewater, but if higher discharge requirements are to be achieved, more in-depth follow-up treatment is necessary. The artificial wetland treatment system is one of the best choices for the subsequent treatment process. According to the plant selection requirements of the constructed wetland, the research is carried out from the aspects of plant growth in sewage, pollution tolerance and decontamination effect, etc. Based on the distribution of plants in southern Hunan, Reed, water spinach and water hyacinth were selected as the research objects. The treatment effects of three kinds of plants and their combinations on five groups of artificial culture wastewater were analyzed. The results of this study are as follows: (1) the removal efficiency of ammonia nitrogen and total phosphorus in aquaculture wastewater by three aquatic plants and their combinations are between 42% and 76 5%, and the removal efficiency of total phosphorus is between 58% and 91.25%. The removal efficiency of chemical oxygen demand is between 43.75% and 87.25%.) from the analysis of the treatment ability of single plant, it shows the trend of water hyacinth water spinach Reed, and the plant combination of "Reed and water hyacinth", "Reed water hyacinth" plant combination, water hyacinth and water hyacinth, water hyacinth, water hyacinth and water hyacinth. The removal efficiency of plant combination is obviously better than that of single plant. Based on the above research results, it is suggested that water hyacinth or "Reed-water hyacinth" combination should be preferred in the selection of artificial wetland for treatment of aquiculture wastewater in southern Hunan.
【學(xué)位授予單位】：中國(guó)林業(yè)科學(xué)研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：X713

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 崔理華,朱夕珍,駱世明,溫曉露;垂直流人工濕地系統(tǒng)對(duì)污水磷的凈化效果[J];環(huán)境污染治理技術(shù)與設(shè)備;2002年07期

2 戴全裕，蔣興昌，張珩，，戴玉蘭;水蕹菜對(duì)啤酒及飲食廢水凈化與資源化研究[J];環(huán)境科學(xué)學(xué)報(bào);1996年02期

3 邵林廣;水浮蓮凈化富營(yíng)養(yǎng)化湖泊試驗(yàn)研究[J];環(huán)境與開(kāi)發(fā);2001年02期

本文編號(hào)：1501343