【摘要】：研究了單級臭氧(O_3)-生物活性炭(BAC)、兩級串聯(lián)O3-BAC、O3-Na2CO3混凝-BAC三種臭氧組合工藝深度處理焚燒垃圾滲濾液的二級生物處理尾水的效果。結(jié)果表明,在200mg O3/L的臭氧投加量下,兩級串聯(lián)O3-BAC對COD、UV254和色度的去除率分別為75.9%±2.1%、78.8%±2.9%和96.8%±0.9%,處理出水COD基本保持在100mg/L以下,色度低于40倍,滿足排放要求;而單級O3-BAC對COD、UV254和色度的去除率分別為68.2%±1.3%、69.7%±0.5%和92.5%±1.1%,處理出水COD濃度保持在150mg/L左右,色度在60倍左右,不能達(dá)到排放要求。單級O3-BAC在290mg O3/L臭氧投加量下,才能達(dá)到兩級串聯(lián)O3-BAC在200mg O3/L的臭氧投加量下的污染物去除效果。此外,兩級串聯(lián)O3-BAC在臭氧投加量為200mg O3/L時,雖然對總氮去除效果差,但總磷去除率達(dá)到63.5%±4.4%,出水總磷濃度穩(wěn)定在1mg/L以下,直接達(dá)到了GB16889-2008的排放標(biāo)準(zhǔn)。水中p H經(jīng)兩級臭氧氧化后都降低,經(jīng)兩級BAC處理后又升高。兩級串聯(lián)系統(tǒng)可以有效減少臭氧氧化生成的羧酸類物質(zhì)在臭氧氧化塔中的積累,避免由此降低p H進(jìn)而抑制羥基自由基的生成、影響臭氧氧化作用的發(fā)揮。臭氧氧化過程中容易形成磷酸鈣、碳酸鈣等物質(zhì),引起濾池堵塞,影響濾池運轉(zhuǎn)。在臭氧-生物濾池工藝中增加Na2CO3混凝,可有效緩解生物濾池的結(jié)垢堵塞。O3-Na2CO3混凝-BAC對COD、TOC、色度有較好去除效果,能夠達(dá)到《生活垃圾填埋場污染控制標(biāo)準(zhǔn)》(GB 16889-2008)。BAC為厭氧生物濾池時污染物去除效果優(yōu)于好氧。但該系統(tǒng)TN去除效果有限,外加碳源有一定效果。臭氧和濾池處理后,有機污染物的GC-MS檢測組分?jǐn)?shù)和峰面積都大幅度下降,特別是芳香族化合物削減幅度明顯;鐵在處理過程中含量變化不大,鈣、鋅、錳和銅下降趨勢明顯。臭氧和BAC處理后,垃圾滲濾液的發(fā)光菌毒性、SOS/umu遺傳毒性和斑馬魚早期發(fā)育毒性都有較大幅度降低,但系統(tǒng)出水中仍檢出較強的SOS/umu遺傳毒性和斑馬魚早期發(fā)育毒性,值得密切關(guān)注。
[Abstract]:The effect of two-stage series O _ 3-BACU _ 3-Na _ 2CO _ 3 coagulation-BAC combined with single stage ozone (O _ S _ 3)-biological activated carbon (BAC),) on advanced treatment of waste leachate incineration by two stage biological treatment was studied. The results showed that under the ozone dosage of 200mg O _ 3 / L, the removal rates of COD,UV254 and chromaticity by two-stage series O3-BAC were 75.9% 鹵2.1% 鹵2.9% and 96.8% 鹵0.9%, respectively. The effluent COD was kept below 100mg/L and the chroma was less than 40 times. The removal rates of COD,UV254 and chromaticity by single stage O3-BAC were 68.2% 鹵1.3% 鹵0.5% and 92.5% 鹵1.1%, respectively. The concentration of COD in treated effluent was about 150mg/L and the chroma was about 60 times, which could not meet the requirement of discharge. Under the ozone dosage of 290mg O _ 3 / L, single-stage O3-BAC can achieve the pollutant removal effect of two-stage series O3-BAC under the ozone dosage of 200mg O _ 3 / L. In addition, when the ozone dosage of two-stage series O3-BAC is 200mg O 3 / L, the removal efficiency of total phosphorus is 63.5% 鹵4.4, and the effluent phosphorus concentration is stable below 1mg/L, which directly meets the discharge standard of GB16889-2008. The pH in water decreased after two stage ozone oxidation, and then increased after two stage BAC treatment. The two-stage series system can effectively reduce the accumulation of carboxylic acids produced by ozone oxidation in the ozonation tower, avoid the reduction of pH and thus inhibit the formation of hydroxyl radicals, and affect the exertion of ozone oxidation. Calcium phosphate and calcium carbonate are easily formed in the process of ozone oxidation, which causes blockage of the filter and affects the operation of the filter. Adding Na2CO3 coagulation to the ozonic-biofilter process can effectively alleviate the fouling blockage of bio-filter. O _ 3-Na _ 2CO _ 3 coagulating BAC has a better removal effect on COD,TOC, chroma. When GB 16889-2008 was used as anaerobic filter, the removal efficiency of pollutants was better than that of aerobic. However, the TN removal effect of the system is limited, and the addition of carbon source has a certain effect. After ozone and filter treatment, the GC-MS fraction and peak area of organic pollutants decreased significantly, especially for aromatic compounds, but the content of iron did not change, but calcium, zinc, manganese and copper decreased obviously. After the treatment of ozone and BAC, the toxicity of MSL leachate was decreased greatly, but the genotoxicity of SOS/umu and the early developmental toxicity of zebrafish were still detected in the effluent of the system, and the genotoxicity of SOS/umu and the early developmental toxicity of zebrafish were also detected. It deserves close attention.
【學(xué)位授予單位】：上海師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X703.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 沈慧芳,陳煥欽;幾種芳烴化合物臭氧氧化反應(yīng)速率比較及機理探討[J];化工環(huán)保;2004年S1期

2 郭恩彥;譚洪新;羅國芝;孫大川;賴才勝;;臭氧/生物活性炭深度處理循環(huán)養(yǎng)殖廢水[J];環(huán)境污染與防治;2009年10期

3 申元麗;馬金鋒;趙旭;劉雙躍;蘭華春;;臭氧氧化降解除草劑草甘膦的實驗研究[J];環(huán)境科學(xué)學(xué)報;2011年08期

4 徐立利;徐永學(xué);閆艷春;;斑馬魚及其胚胎在毒理學(xué)研究中的應(yīng)用[J];生物技術(shù)通報;2010年11期

5 田兆龍;汪曉軍;;間歇曝氣生物濾池對焚燒垃圾滲濾液脫氮的掛膜啟動和運行工況研究[J];水處理技術(shù);2012年12期

6 吳寅;吳永貴;馬嵐;熊宇霏;張樞;陳琴;;水體酸化條件下Cu(Ⅱ)對斑馬魚胚胎的毒性效應(yīng)[J];生態(tài)毒理學(xué)報;2013年03期

7 朱琳,史淑潔;斑馬魚胚胎發(fā)育技術(shù)在毒性評價中的應(yīng)用[J];應(yīng)用生態(tài)學(xué)報;2002年02期

8 楊柳;耿曉麗;;城市生活垃圾焚燒廠滲濾液特點及處理現(xiàn)狀[J];中國沼氣;2014年04期

相關(guān)博士學(xué)位論文 前1條

1 胡晨燕;生活垃圾焚燒廠滲濾液物化處理的工藝與機理研究[D];同濟(jì)大學(xué);2006年

相關(guān)碩士學(xué)位論文 前1條

1 劉渝;雙膜法（MBR+DT-RO）處理城市垃圾焚燒廠滲濾液的試驗研究[D];西南交通大學(xué);2006年

，

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