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Inquiry Online Contact UsPreparation and Evaluation of Titanium-Based Xerogel as a Promising Coagulant for WaterWastewater Treatment Xiaomeng Wang, Minghui Li, Xiaojie Song, Zhihao Chen, Bingdang Wu, Shujuan Zhang State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023, PR China. Correspondence author.
The nontoxicity of titanium Ti and the potential to produce valuable photocatalysts from the final coagulated sludge constitute the main advantages of Ti-based coagulants over conventional ones. However, the low effluent pH and the too-fast hydrolysis limit the wide application of Ti-salt coagulants. Prehydrolysis, to some extent, is helpful to improve the coagulation performance of Ti-salt .
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Abstract We have studied the physical and chemical properties of aqueous titaniumIV chloride solutions. The results demonstrate that, during TiCl 4 dissolution in water, only part of the titaniumIV chloride hydrolyzes. Aqueous solutions with up to 60 wt TiCl 4 contain unhydrolyzed TiCl 4 species. TitaniumIV chloride solutions have an increased chemical activity for aluminum .
Chromium, aluminum, and titanium concentrations were reduced to below 0.5 mg2. at pH 8 by lime addition. Alum was effective for titanium removal probably due to pH effects and marginally effective for vanadium and arsenic 5. Beryllium, bismuth, zinc, and titanium were reduced to below 1 mga by sodium sulfide treatment.
Zakharova et al. have reported the production of mixed aluminium-iron coagulant from red mud and spent pickling liquor from iron smelting plants 8. Treatment with dilute hydrochloric acid increased the yield of usable ferric oxide, alumina and titanium dioxide.
The present invention is directed to a process for the recovery of titanium dioxide by the sulphate process, in which a titanium-containing starting material is digested with sulfuric acid to obtain a solids-containing digestion solution black solution, from which titanium dioxide is obtained in further, downstream process steps, wherein Feeding to the further process steps, the solids are .
Ferric chloride is generally the least expensive inorganic coagulant, because it is generated as a waste material from steel-making operations waste pickle liquor. However, it is by far the most corrosive and hazardous inorganic coagulant, and its use is limited to facilities equipped to handle it safely.
The aggregation stability of sulfate lignin in aqueous AlCl3 and Al2SO43 solutions within wide ranges of pH values and coagulant concentrations was studied by spectrophotometry. Fatigue led to more manifest individual changes in most of the indices of.
Titanium is non-toxic and does not react with the human body, so, it is also widely used in medical treatment 17. Furthermore, titanium salt coagulants exert good treatment effects on turbidity, chromaticity, and so on. As a coagulant, titanium salt can be used to recycle sludge and produce valuable TiO2 for reuse 1820.
The present invention is directed to a process for the recovery of titanium dioxide by the sulphate process, in which a titanium-containing starting material is digested with sulfuric acid to obtain a solids-containing digestion solution black solution, from which titanium dioxide is obtained in further, downstream process steps, wherein Feeding to the further process steps, the solids are .
studied titanium tetrachloride as an alternative coagulant to remove particulate and dissolved organic matter from waste-water. Titanium tetrachloride successfully removed organic matter to the same extent as ferric and aluminium salts. The settling of titanium sludge was faster which made the subsequent separation process easier. After .
R. Sanghi, B. Bhattacharya, V. Singh, Use of Cassia javahikai seed gum and gum-g-polyacrylamide as coagulant aid for the decolorization of textile dye solutions, Bioresour. Technol., 97 2006 12591264.
A kind of coagulant containing titanium is a relatively new water treatment agent studied in recent years, of which most were mainly about preparation using titanium tetrachloride or titanium sulfate as raw materials, removing efficiency for pollutants, flocs featuresand so on 13-15.
ISSN 2541-223X 238 THE POTENTIAL USE OF TITANIUM TETRACLORIDE TiCl 4 AS AN ALTERNATIVE FOR COAGULANT IN TEXTILE WASTEWATER TREATMENT Wulan Safrihatini Atikah1, Octianne Djamaluddin1, Radyan Manggala1 1.
For a given concentration of coagulant for example 400 mg l1 , the nal value of absorbance recorded using C2 was 0.03 absorbance removal Table 2 Chemical treatment of the dye CI Reactive Red 141 solution using C1 , C2 and C3 mineral coagulants at.
Ferric chloride is generally the least expensive inorganic coagulant, because it is generated as a waste material from steel-making operations waste pickle liquor. However, it is by far the most corrosive and hazardous inorganic coagulant, and its use is limited to facilities equipped to handle it safely.
INDUSTRIAL APPLICATION OF TXD POLYMERIC FLOCCULANT IN THE COAGULATION PROCESS FOR SBR PRODUCTION TXD Syntheses and Floccu lations of Cationic Starch FlocculantSyntheses and properties of S-g-APAM.
ISSN 2541-223X 238 THE POTENTIAL USE OF TITANIUM TETRACLORIDE TiCl 4 AS AN ALTERNATIVE FOR COAGULANT IN TEXTILE WASTEWATER TREATMENT Wulan Safrihatini Atikah1, Octianne Djamaluddin1, Radyan Manggala1 1.
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A kind of coagulant containing titanium is a relatively new water treatment agent studied in recent years, of which most were mainly about preparation using titanium tetrachloride or titanium sulfate as raw materials, removing efficiency for pollutants, flocs featuresand so on 13-15.
Shon HK, Vigneswaran S, Kandasamy J, Zareie MH, Kim JB, Cho DL, Kim J-H 2009 Preparation and characterization of titanium dioxide TiO 2 from sludge produced by TiCl4 flocculation with FeCl3, Al 2 SO 4 3 and CaOH2 coagulant aids in wastewater. Sep.
The influence of a coagulant type and operating parameters on crossflow microfiltration of aqueous dispersions of titanium dioxide was examined. Two types of coagulant for series of crossflow microfiltration experiments were used inorganic Al2SO43 and organic PRAESTOL.
Aluminum Chlorohydrate is a high quality, high performance coagulant that is commonly used in both municipal and industrial treatment processes to remove particles and organic matter. The highly charged Al in combination with very high basicity of 83 OHAl of 2.49 offers great performance over a variety of different water conditions.
23Yi-Jie Zhang,Zhao-Hui Yang,Pei-Pei Song,Hai-Yin Xu,Rui Xu,Jing Huang,Juan Li,Yan Zhou. Application of TiO2-organobentonite modified by cetyltrimethylammonium chloride photocatalyst and polyaluminum chloride coagulant for pretreatment of aging.
Read Comparison of a novel polytitanium chloride coagulant with polyaluminium chloride Coagulation performance and floc characteristics, Journal of Environmental Management on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at.
Methods of Removing Heavy Metals from Industrial Wastewater Gunatilake S.K. ... solutions for removing heavy metals from ... and titanium are generated in electroplating, electrolysis depositions, conversion-coating, and anodizing-cleaning, milling, and etching.
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