2^nd World Conference on Industrial Chemistry and Water Treatment May 22-23, 2017 Las Vegas, USA

Biography:

Zaw Ye Maw Oo has completed his PhD from D Mendeleev University of Chemical Technology of Russia. Currently, he is attending Postdoctoral studies in the same university. He has published more than 5 papers in reputed journals.

Abstract:

Porous materials are commonly used as catalyst supports in the processes of oxidation, hydrogenation and dehydrogenation at high temperature, corrosion in feed processing- corrosive environments at endothermic and exothermic reactions. In particular, for this purpose various types of corundum materials with high chemical inertness is needed. Porosity materials due to the high porosity and the peculiar structure have specific properties dramatically different from those of the corresponding chemical composition of dense materials. Th en a highly porous cellular material of alumina carriers for catalysts was obtained. The filler used to be electro corundum, as reinforcing filler, forming on fi re a bundle used porcelain. The samples were prepared by impregnating the ceramic slurry polyurethane foam (PUF), followed by drying and calcining at 1450 °C. The porosity after fi ring was 60-65%, the compressive strength of 3.5 MPa.

Biography:

Abstract:

The objective of this work was to optimize the experimental conditions for biosorption of methylene blue dye using dried sun flower seed hull as the biosorbent. With this aim, central composite design model was applied to achieve maximum biosorption capacity q (mg/g). In the model studied, independent variables were pH (2-10), ash dosage (0.05-0.45 g/20 ml), dye concentration (0.005-0.025 mg/L), and temperature (24.5-54.5 oC). The quadratic model was developed for the predetermined responses PDR and biosorption capacity and it was clearly seen that the experimental data fi t well to model predictions statistically (R2≥0.79) and Prob>F<0.0001). Experimental conditions for maximum biosorption capacity was determined as pH 6.0, 0.0169 mg/L MB, 0.244 g DSSH dosage and 39.5 oC temperature.

Biography:

Jin Yong Park has his expertise in membrane separation technology for water or waste water treatment at Department of Environmental Science and Biotechnology, Hallym University, Korea. Recently, he has researched the hybrid water treatment process of ceramic membrane and polymer beads coated with photocatalyst. He was involved in the projects of artificial kidney and reverse osmosis for drinking water as Research Scientist in Membrane Laboratory, KIST, Korea and developed the group contribution method to predict the permeability of gas separation polymer membranes as a Postdoctoral Fellow at Centre for Polymer Research, University of Texas at Austin, USA. He has worked as a Visiting Professor at the Department of Civil and Environmental Engineering, UCLA, USA. He has performed more than 40 projects and has published 70 articles related to membrane technology including 20 articles in SCI journals. Also, he has worked as General Affairs Director, Editor-In-Chief and Executive Director in the Membrane Society of Korea.

Abstract:

For advanced water treatment, effects of pH and pure PP beads packing concentration on membrane fouling and treatment efficiency were observed in a hybrid process of alumina ceramic MF and pure PP beads. The tubular UF membrane (NCMT-5231) with pore size 0.05 μm was manufactured by α-alumina in nanopore materials. The diameter of PP beads was 4-6 mm, and the synthetic feed was prepared with humic acid and kaolin. The synthetic feed was allowed to flow inside the MF membrane and the permeated 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 sec (BT, back flushing time) per 10 min (FT, filtration time). These results were compared with the previous studies. The membrane fouling resistance (Rf) was minimum at 50 g/L of PP beads concentration. Finally the maximum total permeate volume (VT) was acquired at 50 g/L of PP beads. It means that the membrane fouling could be controlled by PP beads at 50 g/L. The treatment efficiency of turbidity decreased slightly from 99.4-99.0% as PP beads concentration decrease; 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.

Biography:

Kartick C Bhowmick research focus on the development of asymmetric organocatalysis for carbon-carbon bond-forming reactions in aqueous media. His research on the development of small organic molecules as organocatalysts for direct aldol reaction impacted significantly in the field of asymmetric organocatalysis. He has developed many optically pure organic molecules which efficiently catalyzed the direct aldol reactions with great yield and selectivity in aqueous media. His newly developed methodology replaced the use of volatile organic solvents and hazardous metal catalysts in asymmetric aldol reactions, thus by contributing enormously towards the development of sustainable organic synthesis.

Abstract:

Presently asymmetric organocatalysis in aqueous media is one of the most focused areas of research field in asymmetric synthesis. Asymmetric carbon-carbon bond forming reactions occupy the central area in the field of asymmetric organic synthesis where aldol reaction is the vastly studied one. A wide range of smart organic materials, including proline and its derivatives have been proved to be efficient catalysts for asymmetric aldol reactions. In recent years, more attention has been paid to develop organocatalysts for the asymmetric direct aldol reactions in water because it provides some unique properties, which include large cohesive energy density, very high surface tension, hydrophobic effect and most importantly it is environmentally benign solvent. The development of asymmetric organocatalyzed direct aldol reactions in aqueous media, for example, a very small organocatalyst, L-Proline hydrazide has been used for direct asymmetric aldol reaction of various ketones with aromatic aldehydes at room temperature in presence of several acid additives. A loading of 10 mol% of the catalyst and p-toluenesulphonic acid as additive was employed in this reaction, and good yields (up to 99%), with high anti/syn diastereoselectivities (up to 95:5) and enantioselectivities (up to >99.9%) could be achieved in aqueous media. Another new organocatalyst, derived from 4-hydroxy-L-proline and abietic acid was used for aldol reactions between substituted aromatic aldehydes and various ketones in presence of several acid additives in aqueous media. The corresponding aldol products were obtained in high isolated yields (up to 99%) with high anti-diastereoselectivities (up to 94%) and enantioselectivities (>99.9%). The catalyst loading was reduced to as low as 1 mol% only and very significantly, the aldol reactions were found to be extremely fast in water. In addition to the development of the above organocatalysts, the effect of several acid additives was investigated in asymmetric direct aldol reaction catalyzed by a C2-symmetric organocatalyst in aqueous media.

Biography:

Dongyun Du has abundant theoretical knowledge and practical experience in arsenic wastewater treatment. He has developed three novel methods for the disposal of dirty acid wastewater and two kinds of absorbent material for removal of arsenic from groundwater. He has developed these technologies after years of experience in research, teaching and administration in university. Recently, he studied on the recovery of valuable metals from waste residues in metallurgical industry and the stabilization/solidification technology about high arsenic content of solid waste.

Abstract:

The aim of this study is to reduce the gross weight of As-containing hazardous waste in the process of treating dirty acid wastewater. Research focused on arsenic removal from gypsum by washing. With washing solution pH being 3.0 and solid liquid ration being 1:5, arsenic leaching concentration of gypsum after the washing process reduced from 40 mg/L to 2.1 mg/L. In pickling condition, As(III) was oxidized to As(V) and the size of gypsum crystal was reduced. The above are reasons for decreased arsenic leaching concentration. In addition, comparing to one-stage treatment process by using Ca(OH)2, the three stage counter current treatment process showed several advantages. First of all, arsenic concentration of filtrate was reduced from 5 mg/L to 0.2 mg/L, which is below discharge limit (0.3 mg/L) (GB26132-2010). Secondly, it also avoided the production of ferrous arsenate slag. With the use of this novel process, gypsum could become nontoxic and arsenic concentration could be effectively reduced to 0.2 mg/L by adding Ca(OH)2. Therefore, such process has great potential in various industrial applications.

Biography:

Arvind Kumar Mungray has his expertise in biological wastewater treatment especially in UASB and its post treatment systems. Extension of his research area is towards Microbial Fuel Cell (MFC) and therefore working also on the improvement of the design of MFC for decentralized waste water treatment. He is also focusing on making hybrid systems which can be utilized in rural areas as a sustainable solution for waste water treatment.

Abstract:

The objective of the paper is to investigate a laboratory scale sand-activated carbon based system as a post treatment option for Up-flow Anaerobic Sludge Blanket Reactor (UASBR) effluents. The performance of combined sand and activated carbon system using 0.45 mm diameter sand particles and granular activated carbon with a maximum flow rate of 9.4 mL/min was observed for a period of 121 days. Performance monitoring parameters were measured and found maximum removal in terms of BOD (91.98%), COD (93.54%), TSS (98.36%), TDS (82.62%), NH3-N (95.55%), Nitrite-N (91.13%), Nitrate-N (86.72%), Phosphorous (92.76%), Total Coliform (99.9%) and Fecal Coliform (99.9%). The intensity of microbiological activity was found increased in the system with time which resulted in biological activation of the sand and activated carbon bed. Overall, sand and activated carbon based system was found efficient, simple and cost effective post treatment option for UASB reactor.

Biography:

Wondalem Misganaw Golie has completed his BTech in 2007 in Chemical Engineering and MTech in 2010. Currently, he is a PhD Research Scholar in the Department of Chemical Engineering at Indian Institute of Technology Delhi, India.

Abstract:

A continuous adsorption study in a fixed-bed column was conducted for the removal of nitrate from water by using chitosan/alumina composite as an adsorbent. The effects of influent nitrate concentration, flow rate, and bed depth on the adsorption characteristics of adsorbent and column performances were evaluated at room temperature and original pH of the solution. The results revealed that the breakthrough curves are significantly affected by the variation of flow rate, initial concentration and bed depth. The nitrate removal efficiency increased with increase in bed height and decreased with increase in influent nitrate concentration and flow rate. The breakthrough time increased with increase in bed height. Thomas and Yoon-Nelson kinetic models were applied for the analysis of adsorption kinetics. The model data confirmed that both models are fitted well with the experimental results of continues fixed-bed column adsorption study. Bed-depth service time (BDST) model was used to study the effect of bed depth on breakthrough curves and to predict the time required for breakthrough. The model data revealed the applicability of the BDST model for the present system. The results show that chitosan/alumina composite can be used in fixed bed column for the removal of nitrate from water.

Biography:

Xiaomin Wu is a Professor and Deputy Director of the Institute of Engineering Thermophysics, Department of Thermal Engineering, Tsinghua University, China. Her current research interests include heat and mass transfer, meso-scale process of phase transition and frosting control, boiling and condensation heat transfer enhancement, design and optimization of heat exchanger, performance analysis and optimization of air-conditioning/refrigeration systems, water-saving and energy-saving technologies.

Abstract:

The weak points of traditional wet cooling tower include water loss and water mist pollution to the surrounding environment as well as water freezing in cold winter. To solve these problems, a novel cooling tower that is water-saving and ecofriendly is developed. The tower realizes the water-saving and mist-suppressing by adding an air heat exchanger to achieve the non-evaporative heat rejection and reduce the dew-point temperature of the humid air at the tower outlet. A model for calculating the tower thermal performance is established and software is developed based on the model. With the help of the software, calculations can be carried out to optimize the cooling loads of the heat exchanger and the packing, with the airflow resistance being matched between the air heat exchanger and packing layer for a given fan characteristic curve. Calculations are implemented for a project that needs to reduce 60000 m3/h circulating water temperature from 42 °C to 32 °C. The results show that, in case a single tower can treat 4000 m3/h circulating water, 15 towers are needed to guarantee the cooling capacities throughout the year. As compared with the conventional wet tower, the towers can save 3.785×106 m3 water per year, so more equipment investments for the tower can be recovered in the first year; the annual net savings is 1,900 million RMB for the first year and 2900 million RMB for the year afterward, in the climate of Beijing area. In the area north of Beijing, even better water-saving effect and economy can be achieved. Expression for demist rate of the new tower against the traditional one is also proposed. The technology associated with the new tower is applied to several practical projects and good results are obtained.

Biography:

Palash Mondal has completed his PhD from Visva-Bharati University, Santiniketan, India, in 2013. During his PhD study, he focused research on polymer encapsulated nanomaterials for extraction of toxic metal ions from aqueous solution. Currently he is a Post-doctoral Research Scholar at Arizona State University, Arizona, USA. Presently he is working on polymer capped functionalized gold nanoparticles for detection of heavy or toxic metal ions from waste water.

Abstract:

Contamination of water by heavy or toxic metal ions can lead to serious environmental and human health problems. There are several toxic metal ions (e.g., mercury, cadmium and lead) can cause serious environmental and human health problems because of their acute and chronic toxicity to biological system. For example, the most common form of mercury in water is mercuric ion (Hg2+) which is widely released to the environment from industrial source, shows high toxicity mainly on renal and nervous systems through the disruption of enzyme activity. On the other hand, lead ions (Pb2+) released to the environment through dyes, gasoline and batteries and it can cause neurological, cardiovascular and developmental disorders in especially children. Another highly toxic metal ion is cadmium (Cd2+), found in many end user products such as plastics, batteries, cigarettes and dyes. Therefore, monitoring of toxic metal ions in water (drinking, sea, lake, etc.) is very essential in terms of improving human health and water quality. There are several methods used for heavy or toxic metal ion detection which is oft en based on chromatographic and spectroscopic techniques such as inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS), high performance liquid chromatography (HPLC) and electrochemistry. Although these methods are highly sensitive and selective, they require high sophisticated instruments, are expensive, timeconsuming and non-portable. Therefore, low cost, simple, rapid, portable and green methods for metal ion detection are still highly desired. In this regard, colorimetric methods based on functionalized gold nanoparticles (AuNPs) are convenient and attractive, and can satisfactorily meet these demands. Because AuNPs exhibit high extinction coefficients, strongly distancedependent optical properties, and colors arising from AuNPs at nanomolar concentrations allow them to be easily monitored by the naked eye without the aid of any advanced instruments.

Biography:

Adele Brunetti has obtained her PhD in Chemical Engineering in 2008 at the University of Calabria. In 2004, she worked at ITM-CNR in the framework of several projects at international and national level. In 2012, she has worked as a Researcher at ITM-CNR. She is the author of 50 papers published on referenced international scientific journals, 9 book chapters edited by Elsevier, Wiley, Royal Society of Chemistry and about 150 international conference proceedings. She is a Referee of several scientific journal of international level. Her research interest includes membrane condensers for water recovery; catalytic membrane reactors for high temperature reactions; design of membrane separation unit for the recovery of high purity hydrogen; study of integrated membrane plants for high purity (CO<10 ppm) hydrogen production; membrane gas separation; CO2 capture by membrane technology; testing and characterization of polymeric, zeolitic, ceramic membranes for gas separation, also in controlled relative humidity conditions.

Abstract:

The shortage of potable water has become an environmental issue more and more pressing owing to the continuous growth in water demand not balanced by an adequate recharge. If we think the water use in power generation for boilers, cooling and cleaning purposes account for around 22% of global water consumption. Separation and recovery of water contained in the waste gaseous streams can be considered as a new water source, also simply pursuing the possibility that industry can close the own water cycle by capturing evaporated water, minimizing the make-up from external sources. In this work, an emerging technology, so-called membrane condenser for the selective removal of water from the evaporated industrial waste will be introduced. In this system, the feed (super-saturated industrial gas) is brought into contact with hydrophobic microporous membranes in membrane contactor configuration. The water condenses onto the membrane surface and the hydrophobic nature of the latter prevents the penetration of the liquid into the pores, letting the dehydrated gases pass through the membrane and retaining the liquid water at the retentive side. An experimental and simulation study is developed for predicting the membrane-based process performance. Feed flow rate, interfacial membrane area, temperature difference between the fed flue gas and the membrane module result the driving parameters controlling the process. The analysis of the potentialities of this new technology is supported by the introduction of process intensification metrics which provide an alternative and innovative point of view regarding the unit performance, highlighting important aspects characterizing the technology and not identified by the conventional analysis. In the end, this presentation aims to give a point of view on the approach to be used for a proper evaluation of emerging membrane technologies performance and comparison with conventional units.

Biography:

Soraya Hosseini has completed her PhD in Chemical Engineering from University Kembangan Malaysia in 2010, followed by a series of Post-doctoral positions at University Putra Malaysia from 2010 to 2016 within the same department. Her PhD and the subsequent postdoctoral research have led to about 45 research papers published in high-profile scientific journals in the field. Although she has been actively involved in environmental research and catalyst fabrication, her main research interest falls in the area of the fabrication of anhydrous membranes in fuel cell application. She has also been developing a growing interest in the area of advanced materials and electrochemical reactions. She has also conducted in-depth research on the fabrication of biosensors, employed in a range of food and energy. Her current research is concentrated around the fabrication of biosensors and probing into their performance by means of electrochemical reaction and impedance spectroscopy.

Abstract:

Many treatment methods have been proposed for removal of pollutants from water. The feasibility of a natural gelatin from Sisymbrium irio seeds to remove dyes (methylene blue, and methyl orange) and reducing turbidity of kaolin water has been examined. Various natural materials were applied for removal of dyes, heavy metals, organic compounds and reducing turbidity from wastewater; however, some issues such as the presence of poisoning materials appeared due to utilization of those natural materials. Sisymbrium irio seed is widely used as medicine for treating some disease, indicating the edible seed is free poisoning. Various enzymatic degradation products are formed from Sisymbrium irio seed when the seed tissue is disrupted due to content glucosinolates. These products contribute to adsorbing anionic and cationic dyes from water in which the dyes are totally removed in all pH range of solutions; however, reduction in turbidity of kaolin water was not observed.  The highest amount of natural gelatin was obtained in the pH range 5 to 7. A color reduction of over 99% was achieved at equilibrium using an methylene blue concentration of 200 mg/L with 5 g seed in the pH range 3 to 10 and also 98% methyl orange was removed in the pH range 5 to 10. A color changing of the Sisymbrium irio seed was observed form orange to dark blue aft er removal of methylene blue. The results show that the enzymatic degradation products are totally able to remove both cationic and anionic dyes that may have occurred due to bonding with various functional groups such as OH, SO3, SH, CN, etc. For this reason, no flocculation occurred in kaolin water without any surface charge to reduce turbidity.

Biography:

Anderson Jose Beber has over 17 year of experience in industrial water treatment, especially clarification, demineralization, reverse osmosis, low and high pressure boiler water treatment and cooling water treatment. He has worked for different multinational water treatment companies, servicing several industries: Pulp and paper, power, steel, manufacturing, food and beverage, automotive and many others. Over the past 6 years, he has dedicated his expertise on special projects and technical assistance to Solenis sales team, being responsible for new product launch, technical training, project development, consultancy for boiler and cooling water treatment for industries in Latin America.

Abstract:

Microbiological control is essential in any cooling water system. A cooling system such as a large cooling tower is an excellent environment for microbiological growth: Water, warm temperature, oxygen, dust and debris from air, nutrients and others are some of the variables that contribute largely to the growth of microbiology colonies. The main negative consequence is that the biofilm (sludge) formed is highly insulating. It is known that biofilm is more insulating that CaCO3 or SiO2 scales. The best and less expensive way to control MB is by using large amounts of oxidizing biocides like chlorine gas, hypochlorite, bromine, chlorine dioxide. The goal is to maintain an oxidizing environment which is not friendly for bio cells. However, strong oxidizer may cause high chloride content, lower concentration cycles, higher cost among others. Also, a high oxidant environment may lead to higher corrosion rates. And finally the strong oxidizers are not selective, reacting to any contamination not only MB. This paper shows the results of the application of a novel mild oxidizer on a large cooling tower at a power plant. This specific cooling tower utilizes grey water (tertiary treated domestic sewage) as make up water. After the application of this mild oxidizer, the concentration cycles were enhanced from an average of 4 up to 6.5, resulting in large savings to the plant. Also, stainless steel corrosion rates dropped significantly due to the reduction of chlorides and sulfates residuals.