Current online water quality monitoring methods and their suitability ...

More documents

Recommendations

Info

ReferenceHu Y et al (2008). Talanta, 74(4) :760-765Solna, R et al. (2005). Talanta, 65(2): 349-357Shin Kim et al. (2005). Sensors andActuators B, 108: 285-291De Melo et al. (2005).Sensors andActuators B, 348-354Shin Kim Y and Seok Yang (2007).Sensors and Actuators B, 121: 507-514Kessick R and Tepper G (2006).Sensors and Actuators B, 117: 205-210Contaminants ofConcernHydroxyl RadicalsPhenols and PesticidesVOCsVOCVOCVOCNotes- Description of a simple method to electrochemically detect hydroxyl radicals- The (OH)-O• is generated by the Fenton reaction from iron (II) sulphate and hydrogen peroxide in a phosphatebuffer solutionConclusion:- Method detects (OH)-O• with high sensitivity without any separation process- The differential pulse voltammetric responses show a linear dependence on the concentration of (OH)-O• a simple, inexpensive and promising method- Immobilization substrates for electrodes were tyrosinase, peroxidase, acetylcholinesterase,butyrylcholinesterase measuring inhibition by pesticides: acetylthiocholine chloride as substrate for cholinesterases determining phenols: hydrogen peroxide as co-substrate for peroxidaseResults:- detection of p-cresol, catechol, phenol and pesticides including carbaryl, heptenophos, fenitrothion in a flowthroughand steady-state system- evaluation of effect of heavy metals (Cu 2+ , Cd 2+ , Fe 3+ ), fluoride (NaF), benzene and dimethylsulphoxide oncholinesterase activities- electrodes modified with hydrolases and oxidoreductases can function in the same arrayConclusion:Showed that simultaneous analysis was feasible, with a small degree of cross-sensitivity. Complexity of realsamples gives non-linear responses of biosensor array. Alternative data analysis using principal componentanalysis and other chemometric methods is a possibility. Not yet a commercial product, but could be worthtrialling in PRW scheme.Electronic nose for detecting VOC. It uses an array of carbon black-polymer composites and pattern recognitiontechniques. Was able to classify different types of whiskeys.Electronic tongue using conducting polypyrrole chains for determining the presence of VOC. The polymer mix isimbedded on conducting ITO glass substrates. The sensors exhibited good sensitivities towards methanol,ethanol, benzene and carbon tetrachloride.Electronic nose developed using 4 different carbon black-polymer composite sensors in addition to a temperaturesensor. The sensor array measured the chemoresistive response acquired through a voltage circuit.Electronic nose based on electrospun polymer composite fibre arrays identify VOCs. It could quantitativedetermine the concentration of tow organic solvents, one alcohol and one chemical welfare agent. The methodshows potential.Current Online Water Quality Monitoring Methods and Their Suitability for the Western CorridorPurified Recycled Water Scheme Page 50
Urban Water Security Research Alliancewww.urbanwateralliance.org.au
Page 1 and 2:
Current Online Water Quality Monito
Page 3 and 4:
ACKNOWLEDGEMENTSThis research was u
Page 5 and 6: CONTENTSAcknowledgements...........
Page 7: EXECUTIVE SUMMARYThis report forms
Page 11 and 12: The multi-barrier treatment process
Page 13 and 14: The number of parameters per catego
Page 15 and 16: Online analysers operating within t
Page 17 and 18: Table 1Number of water quality para
Page 19 and 20: Additional background information (
Page 21 and 22: sensors that are stable slow to dri
Page 23 and 24: that it can handle more than one re
Page 25 and 26: Advantages: Sample acquired in-line
Page 27 and 28: These sensors are once again based
Page 29 and 30: 5.3 Inorganic parametersThere are a
Page 31 and 32: The majority of analytical methods
Page 33 and 34: For Barriers 1, 6 and 7 where the m
Page 35 and 36: 5.7 PesticidesCurrently there are n
Page 37 and 38: Recently, Hach introduced an Event
Page 39 and 40: 6.2 Summary of RecommendationsThe f
Page 41 and 42: 7. REFERENCES1. Queensland Water Co
Page 43 and 44: 63. WTW (2008) The IQ SENSOR NET XT
Page 45 and 46: Appendix 1: Review of Commercially
Page 47 and 48: CompanyNameYSIHANNAInstrumentsMettl
Page 49 and 50: Appendix 2: Review of Research Deve
Page 51 and 52: ReferenceGutirrez M et al. (2008).
Page 53 and 54: ReferenceRodriguez-Mozaz S et al. (
Page 55: ReferenceBohrer F et al (2008).J.AM
show all

Current online water quality monitoring methods and their suitability ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?