【摘要】：針對硫酸鹽還原菌(SRB)處理煤礦酸性廢水(AMD)需要充足碳源,易受外界因素干擾,單獨作用效果差等問題,利用微生物固定化技術(shù),以生鐵屑作為主要基質(zhì)材料,并聯(lián)合SRB污泥、麥飯石及玉米芯顆粒,制備高活性生鐵屑固定化顆粒,以完全活化的固定化顆粒為研究對象,探究生鐵屑固定化顆粒的理化性狀及對Mn~(2+)的吸附規(guī)律。結(jié)果表明:顆粒能夠抵抗p H值為4的酸溶液(如AMD),并在堿、鹽溶液中保持較好的穩(wěn)定性,對Mn~(2+)的吸附容量符合Freundlich等溫吸附方程(R2=0.98868,1/n=0.4896),吸附動力學(xué)符合Elovich動力學(xué)模型(R2=0.9964),可見,所制備的固定化顆粒對Mn~(2+)具有表面快速吸附的能力,且對處理AMD具有一定的適應(yīng)性。
[Abstract]:In order to solve the problems such as sufficient carbon source is needed to treat (AMD) from coal mine acid wastewater by sulphate reducing bacteria (SRB), it is easy to be interfered by external factors, and the effect of single action is poor. Using microbial immobilization technology, iron scraps are used as the main matrix material and combined with SRB sludge. The immobilized iron particles with high activity were prepared from Maifan stone and corncob. The physicochemical properties of immobilized particles and the adsorption law of mn ~ (2) were studied. The results show that the particle can resist acid solution with pH value of 4 (such as AMD), and maintain good stability in alkali and salt solution). The adsorption capacity of Mn2 conforms to the Freundlich isothermal adsorption equation (R2O0.988681pncnc4896), and the adsorption kinetics accords with the Elovich kinetic model (R2O0.9964). The immobilized particles have the ability to adsorb mn ~ (2) rapidly on the surface and have some adaptability to the treatment of AMD.
【作者單位】： 遼寧工程技術(shù)大學(xué)力學(xué)與工程學(xué)院;遼寧工程技術(shù)大學(xué)建筑與工程學(xué)院;
【基金】：國家自然科學(xué)基金(41672247、51274110、51474121) 遼寧省自然科學(xué)基金(2015020619)
【分類號】：X752;X172
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本文編號：2142019