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化学工业:2017 -混合水处理的氧化铝陶瓷超滤过程和PP珠子与空气反冲:pH值的影响和聚丙烯珠子——金庸公园

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先进的水处理、pH值的影响和纯PP珠包装浓度对膜污染和治疗效率在混合过程中观察氧化铝陶瓷MF和纯PP珠子。管式超滤膜(ncmt - 5231)与孔隙大小0.05μmα-alumina生产的纳米孔材料。PP珠子的直径是4 - 6毫米,合成饲料制备腐殖酸和高岭土。合成饲料被允许流在MF膜和渗透联系了PP膜的珠子怜的差距和丙烯酸模块与外部紫外线照射。雷竞技网页版执行周期性的空气反冲洗控制膜污染在10秒(每10分钟BT、反冲时间)(英国《金融时报》、过滤时间)。这些结果与之前的研究相比。膜污染阻力(Rf)在50 g / L的PP珠子最低浓度。最后的最大渗透总额(VT)收购50 g / L的PP珠子。这意味着可以控制膜污染PP珠子在50 g / L。浊度的治疗效率略有下降99.4 - -99.0% PP颗粒浓度降低; however, that of dissolved organic materials (DOM) decreased dramatically from 87.8-73.9% as decreasing PP beads concentration. It means that more PP beads could adsorb or photo-oxidize DOM more effectively. The Rf increased as increasing pH of feed as compared and the maximum VT was acquired at pH 5.1. It means that the membrane fouling could be inhibited at low acid condition. The treatment efficiency of turbidity was almost constant independent of pH; however, that of DOM was the maximum at pH 6.5. It means that the DOM could be removed more excellently at the low alkali condition. Effects of pH and pure polypropylene (PP) beads packing concentration on membrane fouling and treatment efficiency were observed in a hybrid process of alumina ceramic microfiltration (MF; pore size 0.1 μm) and pure PP beads. Instead of natural organic matters and fine inorganic particles in natural water source, a quantity of humic acid (HA) and kaolin was dissolved in distilled water. The synthetic feed flowed inside the MF membrane, and the permeated water contacted the PP beads fluidized in the gap of the membrane and the acryl module case with outside UV irradiation. Periodic air back-flushing was performed to control membrane fouling during 10 s per 10 min. The membrane fouling resistance (Rf) was the maximum at 30 g/L of PP bead concentration. Finally, the maximum total permeated volume (VT) was acquired at 5 g/L of PP beads, because flux maintained higher all through the operation. The treatment efficiency of turbidity was almost constant, independent of PP bead concentration; however, that of dissolved organic materials (DOM) showed the maximal at 50 g/L of PP beads. The Rf increased as increasing feed pH from 5 to 9; however, the maximum VT was acquired at pH 6. It means that the membrane fouling could be inhibited at low acid condition. The treatment efficiency of turbidity increased a little, and that of DOM increased from 73.6 to 75.7% as increasing pH from 5 to 9. water treatment, impacts of pH and unadulterated PP dabs pressing focus on film fouling and treatment proficiency were seen in a cross breed procedure of alumina clay MF and unadulterated PP globules. The rounded UF layer (NCMT-5231) with pore size 0.05 μm was produced by α-alumina in nanopore materials. The measurement of PP dots was 4-6 mm, and the manufactured feed was set up with humic corrosive and kaolin. The engineered feed was permitted to stream inside the MF layer and the penetrated reached the PP globules fluidized in the hole of the film and the acryl module case with outside UV illumination. Intermittent air back-flushing was performed to control film fouling during 10 sec (BT, backflushing time) per 10 min (FT, filtration time). These outcomes were contrasted and the past examinations. The film fouling opposition (Rf) was least at 50 g/L of PP globules fixation. At long last the greatest all out pervade volume (VT) was obtained at

金庸公园

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