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1 Chemometric Methods for Environmental Pollution Monitoring Dmitry E. Bykov Samara State Technical University Samara, Russia
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2 Outlines I. Introduction II. Wastes recovering III. Wastes conversion IV. Wastes cancellation V. Wastes management VI. Landfills management VII. Conclusions
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3 The Goals This lecture has two main objectives: To give information about our R & D activities; To get your advices how to apply chemometrics
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4 Samara is a large industrial city
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5 Samara State Technical University SSTU 17 000 Students Since 1914
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6 SSTU Structure SSTU Research & Analysis Center of Industrial Ecology Faculty Faculty of Chemical Technology Institute Department Department of Industrial Ecology
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8 Design the processes and equipment for waste treatment industrial sewage cleaning Reengineering of out-of-date technologies Ecological auditing and improvement of ecological management in industry Department Research Activities
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9 Development activities
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10 Public Activities
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11 Research & Analysis Center of Industrial Ecology (RACIE)
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12 RACIE Activities Chemical analysis of topsoil, wastes, sewage, and ground water Development of standards that regulate the pressure on the environment by human activities Designing the up-to-date landfills for industrial and domestic wastes
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13 II. Wastes Recovering The goals are purification and regeneration
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14 Sleeper plant sewage purification Waste emulsion regeneration Copper contaminated sorbent regeneration Used enamel regeneration Hydrolyzed salomass regeneration High foul blowoff sewage purification Sleeper plant sewage purification High foul blowoff sewage purification Tasks solved
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15 Sleeper plant sewage purification Sleeper plants sewage water contains up to 10% of tars. To purify it extraction with xylene is applied.
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16 Equilibrium in the water/tar/xylol system Tar concentration in water, kg/m 3 Extraction tie-line 10 30 50 4.03.0 2.0 1.0 70 90 Pseudoequilibrium area Tar concentration in xylene, kg/m 3 Suspended matter concentration 100 mg/l 300 mg/l 500 mg/l
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17 Tar extraction Sewage water 100% 91% 9% Tar Water Xylene Sewage+Xylene 100% 91.2% 8.1% 0.7% Emulsion 9% 79.1% 19.7% 1.2% Extract 7% 2.4% 88.7% 8.8% Refined water 84% 99.96% 0.02%
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18 High foul blowoff sewage purification
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19 Process parameters (Input) T – Temperature Ph – Acidity PAA – Flocculant (polyacrylamid) concentration K-2 – Coagulant concentration
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20 Purified water quality (Output) D – Optical density Al – Concentration of aluminium ions Al 3+ Fe – Concentration of ferric compounds
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21 Conventional univariate approach - I Output parameters versus acidity. Other input parameters are constants T = 20°C [K-2] = 50 mg/l [PAA] = 2 mg/l
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22 Conventional univariate approach - II Output parameters versus temperature. Other input parameters are constants pH = 6 [K-2] = 40 mg/l [PAA] = 2 mg/l
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23 Conventional univariate approach - III Output parameters versus PAA concentration. Other input parameters are constants T = 20°C pH = 6 [K-2] = 40 mg/l
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24 Conventional univariate approach - IV Output parameters versus K-2 concentration. Other input parameters are constants T = 20°C pH = 6 [PAA] = 2 mg/l
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25 Optimal process setup Temperature T=35°C Acidity Ph= 6 PAA concentration [PAA]=2 mg/l K-2 concentration [K-2]= 40 mg/l
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26 Chemometrics related problem Would MSPC approach be useful there?
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27 PLS2 Model Loadings Plot Input parameters Output parameters T, pH, PAA, K-2 Fe, D, Al
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28 Predicted optical density
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29 Predicted concentration of aluminium ions
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30 Predicted concentration of ferric compounds
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31 III. Wastes conversion The goal is utilization
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32 Tasks solved Soap stock utilization Conversion of plastic-insulated cable scraps 1,2-dichlorpropane processing Polychlorethanes processing
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33 Soap stock utilization Soap stock is a waste of oils and fats refining This is a valuable product, which should utilized
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34 Conventional method of utilization H 2 SO 4 Oil refining Fat refining Stock gathering Soap stock Deoxidation Mixed soap stock Fat separation Laundry soap Mixture of saturated and unsaturated fatty acids, neutral fat Waste is utilized into not valuable soap
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35 Soap stock composition Vegetable oil production wastes Fat production wastes Stock composition is different for oil and fat
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36 Oil production wastes utilization Waste is utilized into valuable dry oil Oil refining Soap stock Deoxidation Fat separation Etherification polymerization oxidization Mixture of saturated fatty acids and neutral fat Desiccant Glycerin О 2 Compounding Oxidized oil Dry oil
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37 Fat production wastes utilization Waste is utilized into valuable products Soap stock Hydro- genation Fat separation Mixture of saturated fatty acids and neutral fat Neutralization Calcium stearate Fat production Commercial stearin Са О
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38 Chemometrics related problem Will MSPC approach be useful in this case?
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39 IV. Wastes cancellation The goal is wastes annihilation
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40 Tasks solved Oil polluted lands reclamation Sewage sludge utilization
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41 Oil polluted lands reclamation We have: Oil polluted lands that should be reclamated A lot of activated sludge that should be utilized Let’s mix them up!
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42 Oil polluted lands reclamation Mixture Oil polluted soil Activated sludge
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43 Oil conversion ES is enzyme-substrate complex E is enzyme (catalase) S is substrate (oil) Р is oil decomposition product
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44 Chemometrics related problem The problem looks similar to biofuel production. Will this similarity be helpful?
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45 More on lands reclamation Konstantin Chertes Samara State Technical University, Samara, Russia Possibilities of application of multidimensional data analysis methods to substantiate directions of degraded land recultivation
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46 V. Wastes management The goal is collection and sorting
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47 Wastes sources
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48 Wastes distribution within industry
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49 Domestic refuse composition
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50 Domestic refuse break up Total (100 %) Collected (83 %)Disposed (76 %)Recycled (7 %)
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51 Waste collection system in Samara
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52 Wastes traverser station
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53 Polymer wastes composition Polymer wastes weight portion is 10 % Polymer wastes cost portion is 60 %
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54 Chemometrics related problem How to automate the wastes sorting? Will NIR spectroscopy be helpful there?
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55 More on waste sorting and recycling Nataliya Ryumina Samara State Technical University, Samara, Russia Sorting of polymers according to the types by the method of near infrared spectroscopy
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56 VI. Landfills management The goal is ecological risk assessment
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57 Well-run landfill Kinel
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58 Illegal dump Bezenchuk
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59 How to estimate a landfill state? measuredevaluated ash contentage densitypeculiarities temperature depth humidity pH
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60 Prediction of maturity (age)
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61 PCA-based classification
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62 Chemometrics related problem How to perform sampling on landfills? Will sampling theory be helpful there? 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 18 19 20 21
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63 More on landfill state evaluation Olga Tupicina Samara State Technical University, Samara, Russia Chemometrics-based evaluation of man- caused formations’ stability Evgeniy Michailov Samara State Technical University, Samara, Russia Ecological assessment of waste fields with multivariate analysis - feasibility study
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64 VII. Conclusions Numerous cases that are of interest in ecology and waste management have been presented Our first chemometric experience inspire us to use it more and more We are entirely open for co-operation in ecological chemometrics It is great to see so many outstanding scientists here!
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