【摘要】：為解決某城鎮(zhèn)污水處理廠二沉池出水COD及氨氮提標(biāo)問(wèn)題,提出經(jīng)濟(jì)、合理的提標(biāo)改造方案,對(duì)現(xiàn)有污水廠2015年四季度進(jìn)出水口COD、氨氮、色度等常規(guī)和非常規(guī)指標(biāo)進(jìn)行跟蹤監(jiān)測(cè)和水質(zhì)分析,并對(duì)存在的問(wèn)題進(jìn)行了分析與總結(jié)。提出了“O3氧化+曝氣生物濾池”的深度處理工藝,通過(guò)正交實(shí)驗(yàn)及單因素實(shí)驗(yàn)對(duì)單獨(dú)臭氧氧化和臭氧/活性炭氧化兩種氧化法進(jìn)行了條件優(yōu)化研究,從經(jīng)濟(jì)及技術(shù)效果角度篩選出臭氧/活性炭氧化法更適合作為后續(xù)生物處理的預(yù)處理方法。篩選出活性炭作為曝氣生物濾池的內(nèi)充填料,并將臭氧/活性炭氧化與活性炭曝氣生物濾池串聯(lián)運(yùn)行,分別考察其在連續(xù)流條件下對(duì)二沉池出水水質(zhì)中COD、總氮及色度的去除效果,得出的主要結(jié)論如下:1)通過(guò)全年數(shù)據(jù)監(jiān)測(cè)及水質(zhì)分析,現(xiàn)有污水處理廠主要存在的問(wèn)題是進(jìn)水水質(zhì)復(fù)雜,進(jìn)水成分包含了印染、化工企業(yè)的城鎮(zhèn)生活污水廢水,水質(zhì)波動(dòng)較大,規(guī)律性較差,GC-MS顯示二沉池出水剩余COD主要屬于苯環(huán)類(lèi)物質(zhì),且難生物降解;出水氨氮濃度為11 mg/L左右,且存在一定色度,應(yīng)采取措施加以消減。2)通過(guò)靜態(tài)條件優(yōu)化實(shí)驗(yàn)得出,臭氧/活性炭氧化法比單獨(dú)臭氧氧化法對(duì)二沉池出水COD去除效率高17%,可生化性提高2.78%,且減少臭氧通量31.7%,具有更高的環(huán)境及經(jīng)濟(jì)效益,篩選出臭氧/活性炭氧化法作為后續(xù)生物處理的預(yù)處理方法。臭氧/活性炭氧化法條件優(yōu)化實(shí)驗(yàn)表明,在進(jìn)水COD為105 mg/L,NH4+-N為11.8mg/L,臭氧接觸反應(yīng)時(shí)間30 min,pH為9,臭氧通量為12.50 mg/L,活性炭投加體積比為2/3時(shí),二沉池出水COD去除率為45%左右,氨氮去除率為44.9%。3)篩選出曝氣生物濾池的最佳填料為活性炭填料,在相同進(jìn)水條件下,活性炭比陶粒曝氣生物濾池COD去除率高8.58%。在連續(xù)運(yùn)行條件下,臭氧/活性炭氧化反應(yīng)器在進(jìn)水COD為89.7~109.8 mg/L時(shí),出水COD為68.1 mg/L,COD去除率為31%�；钚蕴科貧馍餅V池在水力停留時(shí)間為2 h時(shí),出水COD均小于50 mg/L,COD去除率為21.4~54.7%。在進(jìn)水氨氮濃度為11.6 mg/L時(shí),色度為450倍時(shí),經(jīng)串聯(lián)工藝處理后,出水總氮為3.9 mg/L,出水色度為5倍,出水水質(zhì)滿足《城鎮(zhèn)污水處理廠污染物排放標(biāo)準(zhǔn)》(GB18918-2002)一級(jí)A標(biāo)準(zhǔn)(COD50 mg/L)。“臭氧/活性炭+曝氣生物濾池”可作為該污水處理廠COD及氨氮提標(biāo)排放的升級(jí)改造方案。
[Abstract]:In order to solve the problem of COD and ammonia nitrogen raising in the effluent of secondary sedimentation tank of a urban sewage treatment plant, an economical and reasonable scheme of bid raising and transformation was put forward, and the COD, ammonia nitrogen at the inlet and outlet of the existing sewage treatment plant in the fourth quarter of 2015 was put forward. The conventional and unconventional indexes such as chromaticity are followed up and analyzed, and the existing problems are analyzed and summarized. The advanced treatment process of "biological aerated filter for O3 oxidation" was put forward. The conditions of ozone oxidation alone and ozone / activated carbon oxidation were optimized by orthogonal experiment and single factor experiment. From the point of view of economic and technical effects, ozone / activated carbon oxidation is more suitable as a pretreatment method for subsequent biological treatment. Activated carbon was selected as the internal filling material of biological aerated filter, and ozone / activated carbon oxidation was carried out in series with activated carbon biological aerated filter. The COD, in the effluent quality of secondary sedimentation tank was investigated under the condition of continuous flow. The main conclusions of total nitrogen and chromaticity removal are as follows: 1) through annual data monitoring and water quality analysis, the main problems in the existing sewage treatment plants are that the influent water quality is complex, and the influent composition includes printing and dyeing. The water quality of municipal domestic sewage wastewater in chemical enterprises fluctuates greatly and the regularity is poor. GC-MS shows that the remaining COD in the effluent of the secondary sedimentation tank mainly belongs to benzene ring substances and is difficult to biodegrade. The concentration of ammonia nitrogen in the effluent is about 11 mg/L and there is a certain chromaticity, so measures should be taken to reduce it. 2) through the static condition optimization experiment, it is obtained that, Compared with ozone oxidation alone, ozone / activated carbon oxidation has 17% higher COD removal efficiency, 2.78% more biodegradability and 31.7% lower ozone flux, which has higher environmental and economic benefits. Ozone / activated carbon oxidation was selected as a pretreatment method for subsequent biological treatment. The optimization experiment of ozone / activated carbon oxidation conditions shows that when the influent COD is 105 mg/L,NH4-N is 11.8 mg 路L, the ozone contact reaction time is 9 min,pH and the ozone flux is 12.50 mg/L,. When the volume ratio of activated carbon is 2 / 3, the removal rate of COD and ammonia nitrogen in the effluent of the secondary sedimentation tank is about 45% and 44.9% respectively. The COD removal rate of activated carbon was 8.58% higher than that of ceramsite biological aerated filter. Under the condition of continuous operation, when the influent COD of ozone / activated carbon oxidation reactor is 89.7 mg/L, the effluent COD removal rate is 68.1 mg/L,COD and 31%. When the HRT of activated carbon biological aerated filter is 2 h, the removal rate of COD in effluent is 21.4 mg/L,COD 54.7%. When the influent ammonia nitrogen concentration is 11.6 mg/L and the chromaticity is 450 times, the total nitrogen content of the effluent is 5 times when the effluent nitrogen concentration is 11.6 mg/L and 450 times, and the effluent total nitrogen is 5 times when the influent ammonia nitrogen concentration is 11.6 mg/L, and the chromaticity is 450 times. The effluent quality meets the Pollutant discharge Standard (GB18918-2002) Grade A Standard (COD50 mg/L) of Urban sewage treatment Plant. Ozone / activated carbon biological aerated filter (BAF) can be used as an upgrade scheme for COD and ammonia nitrogen discharge in the sewage treatment plant.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：X703

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 胡小兵;饒強(qiáng);鐘梅英;葉星;朱榮芳;張新喜;;SBR工藝活性污泥馴化過(guò)程中微型動(dòng)物群落物種多樣性及其穩(wěn)定性研究[J];環(huán)境科學(xué)學(xué)報(bào);2016年09期

2 Dehua Ma;Lujun Chen;Cong Liu;Chenjun Bao;Rui Liu;;Biological removal of antiandrogenic activity in gray wastewater and coking wastewater by membrane reactor process[J];Journal of Environmental Sciences;2015年07期

3 張安龍;郗文君;;造紙廢水活性污泥馴化過(guò)程中微型生物的指示作用[J];造紙科學(xué)與技術(shù);2015年02期

4 孟冠華;劉寶河;萬(wàn)彤;孫曼;張俊;;Cu/C-Al_2O_3催化臭氧氧化印染廢水[J];工業(yè)水處理;2014年10期

5 邢衛(wèi)紅;汪勇;陳日志;金萬(wàn)勤;;膜與膜反應(yīng)器:現(xiàn)狀、挑戰(zhàn)與機(jī)遇[J];中國(guó)科學(xué):化學(xué);2014年09期

6 曾科;黃麗君;郝甜利;張宏超;崔燕平;;造紙廢水生化處理出水臭氧微氧化脫色技術(shù)的研究[J];環(huán)境污染與防治;2014年07期

7 趙俊娜;李貴霞;劉曼;劉艷芳;趙瑞英;高湘;李再興;;臭氧氧化法處理模擬染料廢水影響因素及降解動(dòng)力學(xué)研究[J];河北科技大學(xué)學(xué)報(bào);2014年03期

8 許世偉;張偉軍;李魁曉;劉菲;王東升;艾兵;;城市污水再生處理過(guò)程中臭氧氧化脫色及穩(wěn)定性研究[J];環(huán)境科學(xué)學(xué)報(bào);2014年12期

9 趙俊娜;高湘;李偉;楊嵐;李貴霞;宋曰超;李再興;;臭氧氧化法深度處理頭孢合成廢水二級(jí)出水[J];煤炭與化工;2014年03期

10 Jing Yang;Dan-dan Liu;Bing-jie Liu;Min-min He;Ying-feng Wang;;Research on mine dustfall agents based on the mechanism of wetting and coagulation[J];International Journal of Minerals Metallurgy and Materials;2014年03期

相關(guān)碩士學(xué)位論文 前4條

1 劉俊峰;膜生物反應(yīng)器—曝氣生物濾池組合工藝處理印染廢水中試研究[D];上海師范大學(xué);2014年

2 馬玉寶;厭氧水解—二段生物接觸氧化處理生活污水試驗(yàn)研究[D];長(zhǎng)江大學(xué);2013年

3 金玉濤;城市污水廠二級(jí)出水回用于鍋爐給水的反滲透技術(shù)研究[D];河北工程大學(xué);2010年

4 司妮娜;混凝—微濾布過(guò)濾工藝應(yīng)用于中水回用的研究[D];北京交通大學(xué);2007年

，

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