發(fā)布時(shí)間：2018-01-19 16:02

  本文關(guān)鍵詞： 鹽度 人工滲流系統(tǒng) 脫氮除磷　出處：《水處理技術(shù)》2016年07期 　論文類型：期刊論文

【摘要】：針對(duì)近岸海域水體及濱海城市水體有一定鹽度的特點(diǎn),研究了人工滲流系統(tǒng)對(duì)該類含鹽水體的脫氮除磷效能。結(jié)果表明,在鹽度分別為0、0.5%和3.0%的條件下,系統(tǒng)對(duì)TN的去除率分別為93.48%、89.56%、77.24%,出水TN的質(zhì)量濃度分別為0.36、0.59、1.31 mg/L;TP去除率分別為65.19%、36.03%、53.07%,出水TP的質(zhì)量濃度分別為0.33、0.6、0.44 mg/L。低鹽度下系統(tǒng)脫氮效果所受抑制作用較小,高鹽度下所受抑制作用較顯著。由于離子競(jìng)爭(zhēng)吸附作用,故系統(tǒng)除磷效果受到抑制作用。系統(tǒng)脫氮作用主要發(fā)生在第1格室,樹皮填料為微生物的附著生長(zhǎng)提供有利環(huán)境,且可釋放碳源而不會(huì)污染水質(zhì);除磷作用主要靠第2格室水泥磚塊的吸附沉淀作用。脫氮與除磷在空間上的分離使系統(tǒng)運(yùn)行控制更為便利。
[Abstract]:In view of the characteristics of salinity in coastal waters and coastal cities, the effect of artificial seepage system on denitrification and phosphorus removal was studied. The results showed that the salinity was 0. Under the conditions of 0.5% and 3.0%, the removal rate of TN in the system was 93.48 and 89.56, respectively, and the mass concentration of TN in effluent was 0.36 and 0.59, respectively. 1.31 mg / L; The removal rates of TP were 65.19 and 36.03, respectively, and the mass concentrations of TP in effluent were 0.33 and 0.6, respectively. 0.44 mg / L. The inhibition of denitrification was less at low salinity than that at high salinity. Therefore, the phosphorus removal effect of the system was inhibited. The nitrogen removal effect of the system mainly occurred in the first compartment. The bark packing provided a favorable environment for the microbial attachment and growth, and could release carbon source without polluting the water quality. The removal of phosphorus mainly depends on the adsorption and precipitation of the second compartment cement block, and the separation of denitrification and phosphorus in the space makes the operation and control of the system more convenient.
【作者單位】： 西安建筑科技大學(xué)環(huán)境與市政工程學(xué)院西北水資源與環(huán)境生態(tài)教育部重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院城市環(huán)境研究所;廈門理工學(xué)院;
【基金】：福建省對(duì)外合作項(xiàng)目(2016I0016) 國(guó)家水體污染控制與治理科技重大專項(xiàng)(2012ZX07302-002) 廈門市科技計(jì)劃項(xiàng)目(3502Z20142018) 寧波市科技計(jì)劃項(xiàng)目(2014A610099) 福建省科技重大專項(xiàng)(2013YZ0001-1-2)
【分類號(hào)】：X55;X52
【正文快照】： 水體中氮磷過量是導(dǎo)致濱海城市水體及近岸海域水體富營(yíng)養(yǎng)化現(xiàn)象的主要成因[1]。污水土地處理系統(tǒng)能耗小、運(yùn)行費(fèi)用低、管理操作方便,并且對(duì)氮磷具有較好的去除效果。該技術(shù)中的典型代表——人工濕地與滲流系統(tǒng),被廣泛應(yīng)用于城市生活污水及工業(yè)廢水等的處理。在前期研究中,袁騰，

本文編號(hào)：1444862