Reduction of organic matter and disinfection byproducts formation potential by titanium, aluminum and ferric salts coagulation for micro-polluted source water treatment.


:Typical Chinese source water has high content of low molecular weight and aromatic protein-like organic matter which is difficult to remove and poses a great challenge to conventional coagulation/flocculation. To investigate coagulation performance of this typical water, this research focused on organic matter removal characteristics and the associated disinfection byproducts formation potentials (DBPFPs) during the coagulation process by titanium salts compared with traditional aluminum and ferric salts. Results showed that based on the dissolved organic matter (DOM) removal, the optimal coagulant dosages of AlCl3, FeCl3 and TiCl4 were 0.5 mM and the optimal initial pH values were 8, indicating that the DOM in the typical Chinese water could be effectively removed through sweeping and adsorption by metal hydroxides rather than the complexation and charge neutralization effect under acidic conditions. Compared these three coagulants, the highest ultra violet absorbance at 254 nm removal rate of 72.9% was achieved by TiCl4. The three-dimensional excitation emission matrix results showed that the removal ability of humic acids by AlCl3 was poorer than FeCl3 and TiCl4. The removal rate of low molecular weight components (1600 Da) by TiCl4 was 20% higher than using AlCl3 and 14% higher than FeCl3. Comparing with AlCl3 and FeCl3, TiCl4 had a better performance on the control of DBPFPs, especially for chloroform and dichloroacetic acid, due to its higher removal ability of aromatic organics. The trihalomethane formation potentials removal rate by TiCl4 was three times higher than that by AlCl3 and twice by FeCl3, by which could be inferred that titanium salts achieved better removal of low molecular weight organic matter than aluminum and ferric salts.






Wan Y,Huang X,Shi B,Shi J,Hao H




Has Abstract


2019-03-01 00:00:00












  • Washing as a remediation technology applicable in soils heavily polluted by mining-metallurgical activities.

    abstract::A permanent solution in order to remediate a heavily contaminated soil is washing it utilizing the appropriate reagents. The study presented in this paper deals with the washing of a soil highly polluted by mining and metallurgical activities. Pollution consists of slags, sulphur compound waste and various low grade l...


    pub_type: 杂志文章


    authors: Moutsatsou A,Gregou M,Matsas D,Protonotarios V

    更新日期:2006-06-01 00:00:00

  • Comparison of PCDD/F and coplanar PCB concentrations in Japanese human adipose tissue collected in 1970-1971, 1994-1996 and 2000.

    abstract::Concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and coplanar biphenyls (Co-PCBs) were determined in Japanese human adipose tissues. Temporal trends were assessed by comparing data collected during 1970-1971, 1994-1996 and 2000. Mean TEQ levels of PCDD/Fs in human adipose tissue showe...


    pub_type: 杂志文章


    authors: Choi JW,Miyabara Y,Hashimoto S,Morita M

    更新日期:2002-05-01 00:00:00

  • A qualitative screening and quantitative measurement of organic contaminants on different types of marine plastic debris.

    abstract::Chemical compounds present on plastic were characterised on different types of plastic litter and beached pellets, using a general GC-MS screening method. A variety of plastic related compounds, such as building blocks, antioxidants, additives and degradation products, were identified next to diverse environmental pol...


    pub_type: 杂志文章


    authors: Gauquie J,Devriese L,Robbens J,De Witte B

    更新日期:2015-11-01 00:00:00

  • First report on interspecies quantitative correlation of ecotoxicity of pharmaceuticals.

    abstract::Pharmaceuticals being extensively and progressively used in human and veterinary medicine are emerging as significant environmental contaminants. Pharmaceuticals are designed to have a specific mode of action and many of them are persistent in the body. These features among others make pharmaceuticals to be evaluated ...


    pub_type: 杂志文章


    authors: Kar S,Roy K

    更新日期:2010-10-01 00:00:00

  • Antioxidative defense mechanism against lead-induced phytotoxicity in Fagopyrum kashmirianum.

    abstract::The effect of lead (Pb)-induced oxidative stress was investigated in Fagopyrum kashmirianum. The seedlings absorbed the Pb readily by showing time (15 and 30 days) and concentration (0, 100, 200 and 300 μM) dependent effects. Pb caused reduction in both root and shoot lengths but its accumulation was more in roots (22...


    pub_type: 杂志文章


    authors: Hakeem KR,Alharby HF,Rehman R

    更新日期:2019-02-01 00:00:00

  • Heavy metal toxicity to Lemna minor: studies on the time dependence of growth inhibition and the recovery after exposure.

    abstract::Environmental concentrations of toxic substances are not necessarily constant but fluctuate over time. Periods of intense exposure might be followed by episodes with a relatively low or no exposure, in principle allowing exposed organisms to recover from toxic injury. The growth reproduction assay with the limnic vasc...


    pub_type: 杂志文章


    authors: Drost W,Matzke M,Backhaus T

    更新日期:2007-02-01 00:00:00

  • Biological treatment of a contaminated gaseous emission from a leather industry in a suspended-growth bioreactor.

    abstract::A suspended-growth bioreactor (SGB) was operated for the treatment of a gaseous stream mimicking emissions generated at a leather industrial company. The main volatile organic compounds (VOCs) present in the gaseous stream consisted of 1-methoxy-2-propanol, 2,6-dimethyl-4-heptanone, 2-butoxyethanol, toluene and butyla...


    pub_type: 杂志文章


    authors: Carvalho MF,Duque AF,Moura SC,Amorim CL,Ferreira Jorge RM,Castro PM

    更新日期:2009-01-01 00:00:00

  • Peroxymonosulfate activation by hydroxylamine-drinking water treatment residuals for the degradation of atrazine.

    abstract::Drinking water treatment residuals (WTRs) have been applied in organic pollutants degradation in water by generating reactive oxygen species from peroxymonosulfate (PMS), however, the slow transformation of Fe(III) to Fe(II) may limit its widespread application. Hydroxylamine (HA) was introduced into the system to enh...


    pub_type: 杂志文章


    authors: Zhang H,Liu X,Lin C,Li X,Zhou Z,Fan G,Ma J

    更新日期:2019-06-01 00:00:00

  • Can rainwater induce Fenton-driven degradation of herbicides in natural waters?

    abstract::Microcosm experiments were conducted to examine Fenton reaction-driven degradation of three common herbicides exposed to a variety of Fe(2+)-H2O2 combinations that are likely to be encountered in natural water environments. The results show that these combinations had significant (P<0.05) effects on removing the water...


    pub_type: 杂志文章


    authors: Qin J,Li H,Lin C,Chen G

    更新日期:2013-08-01 00:00:00

  • Photolysis of polycyclic aromatic hydrocarbons (PAHs) on Fe3+-montmorillonite surface under visible light: Degradation kinetics, mechanism, and toxicity assessments.

    abstract::Photochemical behavior of various polycyclic aromatic hydrocarbons (PAHs) on Fe3+-modified montmorillonite was explored to determine their potential kinetics, pathways, and mechanism under visible light. Depending on the type of PAH molecules, the transformation rate follows the order of benzo[a]pyrene ≈ anthracene > ...


    pub_type: 杂志文章


    authors: Zhao S,Jia H,Nulaji G,Gao H,Wang F,Wang C

    更新日期:2017-10-01 00:00:00

  • Identification of photoproducts of fungicide cyprodinil and elucidation of transformation mechanism in water using LC-IT-TOF-MS/MS technique.

    abstract::This study aimed at investigating photodegradation of cyprodinil in aquatic solution under the simulated natural light or UV-visible irradiation (290-800 nm) using LC-MS/MS techniques. Effects of pH, nitrate ion, Fe (III), humic acid and TiO2 on photolysis kinetics of cyprodinil were explored. The photodegradation fol...


    pub_type: 杂志文章


    authors: Chen X,Dong B,Lin H,Hu J

    更新日期:2016-10-01 00:00:00

  • Levels of PCBs, PCDDs and PCDFs in commercial butter samples in Spain.

    abstract::Feasibility of three different extraction methods for the simultaneous determination of polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in butter is discussed. The method based on liquid-liquid extraction with water of the non fatty solids from butt...


    pub_type: 杂志文章


    authors: Ramos L,Eljarrat E,Hernández LM,Rivera J,González MJ

    更新日期:1999-06-01 00:00:00

  • Investigation of evaporation and biodegradation of fuel spills in Antarctica: II-extent of natural attenuation at Casey Station.

    abstract::In many temperate regions, fuel and oil spills are sometimes managed simply by allowing natural degradation to occur, while monitoring soils and groundwater to ensure that there is no off-site migration or on-site impact. To critically assess whether this approach is suitable for coastal Antarctic sites, we investigat...


    pub_type: 杂志文章


    authors: Snape I,Ferguson SH,Harvey PM,Riddle MJ

    更新日期:2006-03-01 00:00:00

  • Ascorbic acid supplementation of diet for reduction of deltamethrin induced stress in freshwater catfish Clarias gariepinus.

    abstract::Static bioassays were made to evaluate efficiency of supplementation of ascorbic acid to remove stress of pyrethroid pesticide deltamethrin from freshwater catfish Clarias gariepinus. Clarias gariepinus exhibited several symptoms of stress when treated with deltamethrin (0.005 mg/l) for 24 h. Hepatosomatic index, live...


    pub_type: 杂志文章


    authors: Datta M,Kaviraj A

    更新日期:2003-12-01 00:00:00

  • Evaluation of time-to-effects as a basis for quantifying the toxicity of contaminated sediments.

    abstract::Due to uncertainties as to appropriate procedures and dilution materials, most sediment tests are conducted only with undiluted, whole samples. Hence, it is not possible to use conventional concentration-response approaches to quantify toxicity of samples that elicit a 100% effect (e.g., mortality) at a preset test in...


    pub_type: 杂志文章


    authors: DeFoe DL,Ankley GT

    更新日期:2003-04-01 00:00:00

  • Aedes aegypti larvae treated with spinosad produce adults with damaged midgut and reduced fecundity.

    abstract::The mosquito Aedes aegypti is the main vector of Dengue, Chikungunya, Zika, and yellow fever viruses, which are responsible for high human morbidity and mortality. The fight against these pathogens is mainly based on the control of the insect vector with the use of insecticides. Among insecticides, spinosad bioinsecti...


    pub_type: 杂志文章


    authors: Fernandes KM,Tomé HVV,Miranda FR,Gonçalves WG,Pascini TV,Serrão JE,Martins GF

    更新日期:2019-04-01 00:00:00

  • Effect of biochar amendment on sorption and leaching of nitrate, ammonium, and phosphate in a sandy soil.

    abstract::When applied to soils, it is unclear whether and how biochar can affect soil nutrients. This has implications both to the availability of nutrients to plants or microbes, as well as to the question of whether biochar soil amendment may enhance or reduce the leaching of nutrients. In this work, a range of laboratory ex...


    pub_type: 杂志文章


    authors: Yao Y,Gao B,Zhang M,Inyang M,Zimmerman AR

    更新日期:2012-11-01 00:00:00

  • Suppression of estrogenic activity of 17-beta-estradiol by beta-cyclodextrin.

    abstract::The suppressive effects of cyclodextrins (CDs) on the strong estrogenic activity of 17beta-estradiol (E2) in water environments were investigated in this study. Cyclodextrins are doughnut-shaped molecules that possess a hydrophobic cavity and a hydrophilic exterior. The cavity can incorporate nonpolar molecules as gue...


    pub_type: 杂志文章


    authors: Oishi K,Toyao K,Kawano Y

    更新日期:2008-12-01 00:00:00

  • Principle and applications of microbubble and nanobubble technology for water treatment.

    abstract::In recent years, microbubble and nanobubble technologies have drawn great attention due to their wide applications in many fields of science and technology, such as water treatment, biomedical engineering, and nanomaterials. In this paper, we discuss the physics, methods of generation of microbubbles (MBs) and nanobub...


    pub_type: 杂志文章,评审


    authors: Agarwal A,Ng WJ,Liu Y

    更新日期:2011-08-01 00:00:00

  • Lead, mercury, and cadmium in umbilical cord serum and birth outcomes in Chinese fish consumers.

    abstract::Heavy metals such as lead (Pb), mercury (Hg), and cadmium (Cd) were detected in the islands of Yangtze River estuary and Hangzhou bay and their exposure caused potential health risk for the residents. To assess the exposure levels of Pb, Hg, and Cd, the umbilical cord serum samples were collected from 103 mother-newbo...


    pub_type: 杂志文章


    authors: Tang M,Xu C,Lin N,Liu K,Zhang Y,Yu X,Liu W

    更新日期:2016-04-01 00:00:00

  • Direct VUV photolysis of chlorinated methanes and their mixtures in an oxygen stream using an ozone producing low-pressure mercury vapour lamp.

    abstract::The gas-phase photooxidations of CCl(4), CHCl(3), CH(2)Cl(2) and their binary mixtures in an O(2) stream were studied in a flow reactor under various experimental conditions using a low-pressure mercury lamp as light source covered with a high-purity silica sleeve being used. The 184.9 nm VUV irradiation emitted is re...


    pub_type: 杂志文章


    authors: Alapi T,Dombi A

    更新日期:2007-03-01 00:00:00

  • Realizing a high-rate sulfidogenic reactor driven by sulfur-reducing bacteria with organic substrate dosage minimization and cost-effectiveness maximization.

    abstract::Biological sulfur reduction is an attractive sulfidogenic technology for the treatment of organics-deficient metal-laden wastewater, because it theoretically reduces the electron donor consumption by 75%, compared to sulfate reduction. However, reducing the external organic substrate dosage may lower the sulfur reduct...


    pub_type: 杂志文章


    authors: Guo J,Wang J,Qiu Y,Sun J,Jiang F

    更新日期:2019-12-01 00:00:00

  • Fluoxetine modulates the transcription of genes involved in serotonin, dopamine and adrenergic signalling in zebrafish embryos.

    abstract::Neurotransmitters pathways in fish and mammals are phylogenetically conserved. Therefore, the environmental presence of psychopharmaceuticals, such as fluoxetine (FLU), are likely to interact with fish serotonergic, dopaminergic and adrenergic systems, affecting their response and associated biological functions. Henc...


    pub_type: 杂志文章


    authors: Cunha V,Rodrigues P,Santos MM,Moradas-Ferreira P,Ferreira M

    更新日期:2018-01-01 00:00:00

  • Where has the pollution gone? A survey of organic contaminants in Ho Chi Minh city / Saigon River (Vietnam) bed sediments.

    abstract::A wide range of persistent organic chemicals, including polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), some insecticides, as well as polybrominated diphenyl ethers (PBDEs) and some perfluoroalkyl substances (PFASs) were analyzed in 17 bed sediments collected along the Saigon River and at ad...


    pub_type: 杂志文章


    authors: Babut M,Mourier B,Desmet M,Simonnet-Laprade C,Labadie P,Budzinski H,De Alencastro LF,Tu TA,Strady E,Gratiot N

    更新日期:2019-02-01 00:00:00

  • Evaluation of PCDD/F levels in ambient air and soils and estimation of deposition rates in Kocaeli, Turkey.

    abstract::PCDD/F analyses were made in soil and ambient air samples taken from Kocaeli, an industrialized area of Turkey. Results showed that the levels of PCDD/F pollution are comparable to the levels observed in the various urban areas in the world. PCDD/F concentrations in surface soils ranged between 0.4 and 4.27 pg I-TEQ k...


    pub_type: 杂志文章


    authors: Bakoglu M,Karademir A,Durmusoglu E

    更新日期:2005-06-01 00:00:00

  • Influence of toxic elements on the simultaneous uptake of rare earth elements from contaminated waters by estuarine macroalgae.

    abstract::The present study tested whether the presence of potentially toxic elements (PTEs) (Cd, Cr, Cu, Pb, Hg and Ni), commonly found in wastewaters, interferes with the ability of macroalgae (Ulva intestinalis, Ulva lactuca, Fucus spiralis, Fucus vesiculosus, Gracilaria sp. and Osmundea pinnatifida) to remove rare earth ele...


    pub_type: 杂志文章


    authors: Costa M,Henriques B,Pinto J,Fabre E,Dias M,Soares J,Carvalho L,Vale C,Pinheiro-Torres J,Pereira E

    更新日期:2020-08-01 00:00:00

  • Computational study of binding affinity to nuclear receptors for some cosmetic ingredients.

    abstract::We studied the ingredients of cosmetic products as potential endocrine disruptors (ED) by in silico methods (docking). The structures of 14 human nuclear receptors have been retrieved from the protein data bank (PDB). We only considered the mechanism linked with direct binding to nuclear receptors with well-defined cr...


    pub_type: 杂志文章


    authors: Plošnik A,Vračko M,Mavri J

    更新日期:2015-09-01 00:00:00

  • Organophosphate esters in total suspended particulates of an urban city in East China.

    abstract::Organophosphate esters (OPEs) are ubiquitous contaminants in the environment, but little is known on the occurrence and distribution of OPEs in the background atmosphere of urban environments. In this study, air samples were collected from two sites in the city of Shanghai, a typical fast developing metropolitan of Ea...


    pub_type: 杂志文章


    authors: Ren G,Chen Z,Feng J,Ji W,Zhang J,Zheng K,Yu Z,Zeng X

    更新日期:2016-12-01 00:00:00

  • Modified red mud catalyst for the selective catalytic reduction of nitrogen oxides: Impact mechanism of cerium precursors on surface physicochemical properties.

    abstract::Red mud, as industrial solid waste, causes severe environmental problems such as soil alkalization and groundwater pollution. In this work, we researched and developed the red mud as a selective catalytic reduction catalyst for NOx removal with NH3 (NH3-SCR). After selective dissolution and specific heat treatment, di...


    pub_type: 杂志文章


    authors: Gao C,Yang G,Wang D,Gong Z,Zhang X,Wang B,Peng Y,Li J,Lu C,Crittenden J

    更新日期:2020-10-01 00:00:00

  • Microbial-electrochemical bioremediation and detoxification of dibenzothiophene-polluted soil.

    abstract::Bioremediation is a relatively efficient and cost-effective technology for treating polluted soils. However, the availability of suitable electron acceptors to sustain microbial respiration can reduce the microbial activity. This work aims to evaluate the impact of burying electrically conductive electron acceptors in...


    pub_type: 杂志文章


    authors: Rodrigo J,Boltes K,Esteve-Nuñez A

    更新日期:2014-04-01 00:00:00