Removal of trace organic contaminants by integrated membrane proc
Removal of trace organic contaminants by integrated membrane proc
... discharge of TrOCs via wastewater treatment plants is viii 4.3.2 Removal of trace organics by MBR 92 4.3.3 Removal of trace organics by a combined MBR-NF/RO system 93 4.3.4 Performance of the ... conventional activated sludge. 2.5.2.3 Removal of trace organic contaminants by MBR 2.5.2.3.1 Trace organic removal The combination of biologically activated sludge and membrane filtration has made MBR ... Osmotic membrane bioreactor Chapter 5: Forward osmosis processChapter 3: Materials and methods Figure 1-1: Research framework of the Removal of trace organic contaminants by integrated membrane...
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Removal of Nutrients, Organic Matter and Heavy Metals from Paddy Field Drainage by Charcoal
... surface of charcoal because of the structure of this equipment. Relation of removal ability among substances As the removal ability of a substance may be affected by other substances, we investigated ... Feng Y. W. and Hitomi T.(2004) Economic Valuation of Nitrogen Removal/ Loading of Cultivated Land by a New Replacement Cost Method. Journal of Japan Society on Water Environment. 27(7), 491-494 ... attributed to the pure surface of charcoal. The reduction rate of TOC in this test was lower than that of the batch test because the TOC average concentration of this drainage water (5.33 mg/L)...
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structural and electrochromic properties of tungsten oxide prepared by surfactant-assisted process
... properties of tungsten oxide prepared by surfactant-assisted processYuzhi ZhangÃ, Jiaguo Yuan, Jun Le, Lixin Song, Xingfang HuThe Key Laboratory of Inorganic Coating Materials, Shanghai Institute of ... 1, such type of vermicular mesostructure originated from the cooperativeself-assemblies of the inorganic tungsten oxo-oligomers and the organic TMDD surfactant through the process of controlledevaporation ... 3c of sample D calcined at ahigh temperature of 400 1C, the former morphology of sample Cchanged rimous and rough. Such surface mophology of sample Dcould be due to the agglomerated growth of...
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Improvement of Water Quality by Removal of Suspended Solids and High-speed Biological Filtration in Closed Water Body
... of equipmentout of experimental area Figure 5 Variation of Transparency Variation of COD concentration Variation of COD concentrations at the outlet of equipment and the outside of ... floatation dissolution of oxygen floatation bio-degradation sedimentation arrangements of flow outflow Figure 1 Schematic diagram for improvement of water quality by removal of SS and biological ... The process on phosphate fixation will be added in the improved system, and the removal of nitrogen should be considered, too. References [1] Department of Water Environment, Ministry of...
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Removal of arsenic from synthetic groundwater by adsorption using the combination of laterite and ironmodified activated carbon
... is one of the most important parameters to look at in column study for arsenic removal by sequential combination of LA and AC-Fe. In Figure 10, at flow rate of 5mL/min or space velocity of 1.22m3/m3 ... the removal of arsenic with applicability in rural areas. This work aims to study the removal of arsenic from synthetic groundwater using an adsorption column by sequential combination of laterite ... (or space velocity of 0.98-1.47m3/m3h), pH of 7-8, and initial arsenic concentration of 0.1-0.5mg/L, to obtain a breakthrough time of more than 100 hours. The operation of the column is very...
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Occurrence of Polyhydroxyalkanoate as Temporal Carbon Storage Material in Activated Sludge during The Removal of Organic Pollutants
... The removal of easily biodegradable organic matters is one of the most important objectives of biological wastewater treatment. A removal mechanism of biodegradable organic matters is often ... small part of soluble organic matters in sewage is converted to PHA in the course of their removal by activated sludge. Keywords: Polyhydroxyalkanoate (PHA); Activated sludge; Organic matters ... various activated sludge processes (Van Loosdrecht et al., 1997). In contrast to the recognition of PHA accumulation process, its contribution to the removal of biodegradable organic matters has...
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Removal of arsenic from simulated groundwater by adsorption using iron-modified rice husk carbon
... arsenic removal for samples containing RH-Fe5%, particle size of 0.1-0.35 mm, with Co of 1.42-7.38 mg/L, adsorbent dose of 2.5 g/L, pH of simulated groundwater (pH 8.18). Comparison of adsorption ... Experimental procedure Batch experiments were conducted to investigate the effects of pH values within the range of 5-9, of initial arsenic concentrations within the range of 1.42 - 7.39 mg/L and of ... 68.77, 81.99 and 88.00% for pH of 5, 7 and 9, respectively. The same behavior was observed in the study by Mondal et al. (2007a) for the removal of arsenic by GAC-Fe (iron-modified granular...
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Removal of Cadmium from Aqueous Solutions by Charcoals Prepared from Giant Reed (Arundo donax)
... concentration of cadmium was 10 mg-Cd/L, the volume of solution was 50 mL, and the amount of charcoal was 20 mg. Three days from the start of contact (concentration of cadmium was 1 mg-Cd/L, amount of ... A., Miyajima S., Hoshino M., Yoshida S. and Takai N. (2002). Removal of Copper(II) and Cadmium(II) in Water by Use of Roasted Coffee Beans, J. Chem. Soc. Japan, No. 3, 459-461. (In Japanese) ... charcoals, the removal capacity of cadmium from aqueous solution was investigated. As a result, high removal capacity under low concentration of cadmium was observed. High yield of cadmium with...
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TECHNIQUES FOR THE ANALYSIS OF ORGANIC CHEMECALS BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY (ICP-MS) pptx
... analyze for metal contamination at the trace and ultra -trace levels in a range of organic sample matrices. Handling Organic Solvents Water-miscible organic solvents can simply be diluted ... possibility of contamination and the loss of volatile analytes. Where possible, direct 4 Table 1. Recommended Conditions for analysis of various organic solvents Removal of Spectral ... monitoring of trace and ultra -trace metal contaminants in aqueous-based chemicals. Recent advances in ICP-MS technology and methodology have extended the analytical capability of the technique...
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