發(fā)布時(shí)間：2018-04-20 11:34

  本文選題：硫離子 + 氨氮��； 參考：《合肥工業(yè)大學(xué)》2015年碩士論文

【摘要】：論文以中石化安慶分公司煉油汽提凈化水循環(huán)回用為目標(biāo),在大量文獻(xiàn)查閱的基礎(chǔ)上,設(shè)計(jì)并提出煉油汽提凈化水循環(huán)回用治理工藝路線；通過(guò)單因素條件實(shí)驗(yàn)分別考察并確定了沉淀法脫硫離子、沸石吸附去除氨氮、Fenton氧化法去除COD、超高石灰鋁法脫除氯離子等工序較適宜的工藝條件,所得結(jié)果如下：(1)沉淀法脫硫離子。選擇氯化亞鐵為較適宜的除硫沉淀劑；所確定較適宜的工藝條件為：氯化亞鐵添加量8.0 mg/200 mL廢水、反應(yīng)溫度35℃、體系pH10,此條件下硫離子的去除率可達(dá)到96.5%。(2)沸石吸附去除氨氮。氨氮的去除率與沸石添加量幾乎呈線性關(guān)系；所確定的較適宜吸附工藝條件為：反應(yīng)溫度30℃、反應(yīng)時(shí)間60min、200mL10-2 mol·L-1氨氮廢水、沸石添加量3g、體系pH值為6,此條件下氨氮去除率可達(dá)到80%。(3) Fenton氧化法去除COD。在汽提凈化水200 mL (COD 1863mg·L-1)、體系的pH為4、FeSO4·7H2O添加量0.3 g、H2O2/COD質(zhì)量濃度比為2.16、反應(yīng)時(shí)間60 min條件下,COD的去除率為86%。(4)超高石灰鋁法脫除氯離子。較適宜工藝條件為：反應(yīng)溫度40℃,反應(yīng)時(shí)間40 min,鈣鋁氯摩爾比為5：3：1時(shí),氯離子去除率最高可達(dá)到80.05%。在實(shí)驗(yàn)所確定的上述工序較適宜工藝條件下,對(duì)中石化安慶分公司煉油汽提凈化水進(jìn)行處理,處理后的水樣中的硫離子、氨氮、COD、氯離子等的含量均達(dá)到循環(huán)回用水的指標(biāo)要求。
[Abstract]:Based on a large number of literatures, the paper designs and proposes a treatment process for water recycling of refining stripping purification water in Anqing Branch of Sinopec, on the basis of a large number of references. The suitable technological conditions were investigated and determined by single factor experiments, such as precipitation desulfurization, zeolite adsorption and removal of ammonia, nitrogen and Fenton oxidation, removal of chlorine ion by ultrahigh lime aluminum method, and so on. The results are as follows: 1) Desulfurization ion by precipitation. Fe _ 2O _ 4 was chosen as the suitable precipitating agent for sulfur removal, and the optimum technological conditions were determined as follows: the amount of ferrous chloride was 8.0 mg/200 / mL wastewater, the reaction temperature was 35 鈩，

本文編號(hào)：1777583