本文選題：鎂基法脫硫 + 亞硫酸鎂��； 參考：《大連海事大學(xué)》2015年碩士論文

【摘要】：鎂基法脫硫作為脫硫技術(shù)中一種,具有運(yùn)營(yíng)簡(jiǎn)單、脫硫效率高、成本低、緊湊結(jié)構(gòu)等優(yōu)點(diǎn),因此具有較廣的應(yīng)用前景。鎂法脫硫廢水中含有大量亞硫酸鎂,直接排放會(huì)對(duì)環(huán)境造成污染,并且容易導(dǎo)致脫硫裝置的結(jié)垢、磨損和堵塞。因此,本文開(kāi)展了強(qiáng)制氧化亞硫酸鎂的研究。具體研究?jī)?nèi)容包括：(1)通過(guò)對(duì)比現(xiàn)有技術(shù)找出合適氧化方式；(2)進(jìn)行實(shí)驗(yàn)室燒杯實(shí)驗(yàn)以及高效曝氣氧化實(shí)驗(yàn),以尋找最佳實(shí)驗(yàn)參數(shù)；(3)實(shí)船曝氣氧化試驗(yàn)以驗(yàn)證氧化效果。得出以下結(jié)論：(1)亞硫酸鎂的初始濃度在0.05mol/L～0.15mol/L內(nèi)對(duì)反應(yīng)速率沒(méi)有顯著影響：pH值對(duì)亞硫酸鎂的氧化效率影響不大：增加攪拌轉(zhuǎn)速及通入空氣量均對(duì)亞硫酸鎂的氧化率有促進(jìn)作用。(2)分別采用文丘里管與多孔介質(zhì)管產(chǎn)生微氣泡,在70min及60min時(shí)氧化率均達(dá)到90%；去離子水中亞硫酸鎂氧化率比海水中要高。(3)經(jīng)曝氣氧化后COD和濁度均有明顯下降,并且達(dá)到船舶污水排放標(biāo)準(zhǔn)。
[Abstract]:As one of the desulfurization technologies, magnesium base desulfurization has the advantages of simple operation, high desulfurization efficiency, low cost and compact structure, so it has a wide application prospect. Magnesium desulphurization wastewater contains a large amount of magnesium sulfite, which will pollute the environment directly and easily lead to scaling, wear and blockage of desulphurization plant. Therefore, the compulsory oxidation of magnesium sulfite was studied in this paper. The specific research contents include: (1) by comparing the existing technology to find out the suitable oxidation way (1) the beaker experiment in laboratory and the high efficiency aeration oxidation experiment are carried out to find the best experimental parameter: 1) the aeration oxidation test on ship to verify the oxidation effect. The following conclusion is drawn: (1) the initial concentration of magnesium sulfite has no significant effect on the reaction rate in 0.05mol/L~0.15mol/L. The oxidation efficiency of magnesium sulfite is not affected by the pH value of: 1. The oxidation rate of magnesium sulfite is not affected by the increase of stirring speed and air volume. Promoting effect. 2) using Venturi tube and porous medium tube to produce microbubbles, The oxidation rate of MgSO _ 2 in deionized water is higher than that in seawater. After aeration, the COD and turbidity of deionized water decrease obviously and reach the standard of ship sewage discharge. The oxidation rate of MgSO _ 2 in deionized water reaches 90% at both 60min and 70min, and the oxidation rate of MgSO _ 2 in deionized water is higher than that in seawater.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：X736.3

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本文編號(hào)：1805719