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behaviors of calcium and magnesium in the rare earth tailings leached with magnesium sulfate using deionized water, CaCl2 solution and lime water were investigated. Experimental data indicated that magnesium in the tailings was easy to be leached out since most of the magnesium was in the form of water-soluble phase. Most of calcium in the lime water was electrostatically adsorbed on the clay mineral......
contradicted results that with the increase of lime content, the liquid limit also increases [48]. One researcher attributed these phenomena to the modification of the clay soils surface’s affinity for water... percent lime Figure 9 CBR versus water content of sample: Structurally, kaolinite clayey are foliated and fault plans oriented from North-South (NS) to North-Northeast (NNE), South-Southwest (SSW......
J. Cent. South Univ. (2012) 19: 1155-1162 DOI: 10.1007/s11771-012-1122-2 Influence of subsequent curing on water sorptivity and pore structure of steam-cured concrete HE Zhi-min(贺智敏)1, 2, LONG Guang.... For the sake of seeking effective measurements to eliminate this bad effect of steam-cured condition on concrete, the water sorptivity and pore structure of steam-cured concretes exposed to different......
, Beijing 100083, China) Abstract: Lime sulphur synthetic solution (LSSS) method was applied in gold concentrates leaching. The effect of mass ratio of sulphur, lime and water and synthetic time... for mass ratio of sulphur, lime and water of 2:1:(50-75) and the time of 45 min. When the dilute concentration is 15%, the gold leaching rate reaches 73.42%. The mass ratio of sulfur to lime......
c(CaCl2)＞2.57 mol/L. Through calculation, the CaCl2 mother liquor can reuse 132 times for collocating lime water in theory. The research results provide a theoretical basis for the treatment and reuse of calcium chloride mother liquor for collocating lime water which is the precipitant in the process of synthesizing magnesium hydroxide. Key words: CaCl2-Ca(OH)2-H2O; lime water; CaCl2 mother liquor......
; 剩余污泥; 生物净化 中图分类号: X703.1 文献标识码: A Treatment of beryllium-containing wastewater by lime-neutralization and biosorption technique MIN Xiao-bo1, CHAI Li-yuan1, ZHUANG Ming-long1, WANG Yun-yan1..., China) Abstract: Beryllium-containing wastewater was disposed of by biosorption agent made mainly of residual activated sludge from sewerage treatment plants. The novel technique of lime......
Trans. Nonferrous Met. Soc. China 29(2019) 1312-1322 Reaction kinetics and mechanism of calcium oxide in dilute sodium aluminate solution with oxalate based on lime causticization Bai-yong ZHANG1,2... sodium aluminate solution and sodium oxalate solution were studied respectively based on the lime causticization, and the optimal conditions for removing the oxalate in dilute sodium aluminate solution......
Photocatalytic degradation of quinolone antibiotics in water using TiO2 LIU Li-wei, WU Xiao-lian, MO Ce-hui, LI Yan-wen, GAO Peng, HUANG Xian-dong, ZOU Xing, HUANG Xian-pei (Key Laboratory of Water/Soil Toxic... of photodegradation of three quinolones in water by TiO2-catalysed irradiation was investigated through analyzing TiO2 dosage, initial concentration, the pH value and water quality on the photodegradation......
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