AAETI Anil Agarwal Environment Training Institute WELCOME TO PRESENTATION ON WATER QUALITY SYSTEMS

Transcription

1 Anil Agarwal Environment Training Institute WELCOME TO PRESENTATION ON WATER QUALITY SYSTEMS

2 WATER INFRASTRUCTURE Water Transport Water Transport Drivers Water Sources Water Transport Water Treatment Wastewater Treatment Water Usage Wastewater Transport Depleting Water Supply Tightening Regulations Aging Infrastructure Water Pollution Climate change

3 Technology Available for Online Water Quality Monitoring Electrode Method UV-Vis Spectro-photometry (Entire spectrum scanning nM) UV-Vis Spectro-photometry (Single wavelength 254nM) Combined Combustion Catalytic Oxidation at 680 C and NDIR Method (TOC) Scattered Light IR Method Ion Selective Electrode Method with temp correction *NOTE OUR TECHNOLOGY IS ISO , TUV CERTIFIED.

4 Measuring Principle Algorithms based on correlations with reference measurements are stored in the sensor. Calculating concentration: 1. Recording spectral absorbance. 2. Calculation of concentrations according to algorithms. algorithms COD, TOC, BOD, NO 3 - N, TSS mg/l The UV Vis is programmed with algorithms based on correlation data that has been taken from different sites, application and during different times of the year. The sensor records the spectral absorbtion, compares it to the stored algorithms and then calculates the concentration of the analyte. 4

5 absorbance Spectral Absorbance in the Process absorbance absorbance Influent Activated Sludge Effluent 2 wavelength wavelength wavelength 5 The Spectral absorbance differs in each stage of the wastewater process, from application to application, and from site to site.

6 UV-Vis Spectro-photometry (Entire spectrum scanning) UV Visible Spectrometry use the full spectrum involving measurement of organics over the entire spectrum starting from 200 nm to 750 nm with adaptive ranging capabilities. The system takes care of single bond organics also. Any change in matrix needs recalibration of the system to assess the factor for determination of COD & BOD. Preferred tools such as multi-wavelength dual beam scanning in UV- Visible range with library of industrial matrices in analyser with multi-point local adaptive calibrations help to have matrix change adaption seems better for analyser. The measured values are determined from the spectral data. The calculation is based on methods and characteristics that were achieved from a multitude of measurement and long time analysis and the observation from UV spectra. Thus, correlations vary with the change in waste matrix and these characteristics need to be frequently established in the beginning for better data quality the actual values monitoring using laboratory technique.

7 UV-VIS Spectrophotometer Sensor Measures broad spectrum: From ultraviolet (UV) to visible (VIS) light COD: mg/l BOD: mg/l TOC: mg/l TSS: mg/l nm 720 nm The UV-VIS is a spectrophotometer that is extremely rugged and corrosion resistant making it suitable for harsh applications. The UV VIS can measure TSS, Nitrate, COD, BOD, TOC, Dissolved organic carbon and the spectral absorption coefficient. The UV Vis measures the sample s absorption of light across the total spectrum of light from ultraviolet to visible light. This is unique as most spectral sensors only measure at one wavelength.

8 MEASURING PARAMETERS IN WATER COD- Chemical Oxygen Demand BOD- Biochemical Oxygen Demand TOC Total Oxidized carbon TSS - Total Suspended Solids PH / ORP Oxygen Reduction PH CONDUCTIVITY Anion & Cation DISSOLVED OXYGEN AMMONIUM NITRATE TURBIDITY NOTE All sensor probes are TITANIUM -MOC suitable for all type of harsh environment.

9 Relation between COD,BOD &TOC COD or Chemical Oxygen Demand is the total measurement of all chemicals (organics & in-organics) in the water / waste water BOD is a measure of, the amount of oxygen that require for the bacteria to degrade the organic components present in water / waste water. The ratio of BOD/COD is about COD is higher than that of BOD maximum of up to 4 times in medium scale industries; but it varies based on the industrial process and nature of the raw materials used. TOC - measures the amount of carbon bound to organic compound, hence the relation between COD and TOC will be directly proportional to each other. The study concludes that TOC can be reliably used for the generic replacement of both COD (COD= *TOC) and BOD (BOD= *TOC) in influent wastewaters but only for COD (COD= *TOC) in final effluents.

10 IQ Sensors Conductivity Optically: - Nitrate COD, BOD ph / ORP Dissolved Oxygen ISE: Ammon ium 10 Turbidity / Susp. Solids - Nitrate

11 TECHNOLOGY/PRINCIPLE USED FOR MEASURING WATER PARAMETERS Optical DO Sensor Optical DO sensor utilizing Super-stable Green source light No flow required Soft excitation light Minimum aging of sensor cap No bleaching affect on sensor cap 2 year warranty on sensor and membrane cap Highly accurate, +/- 0.1 mg/l No regular sensor maintenance required Intelligent Sensor Cap Factory calibrated Cal data stored on memory chip Automatic data transfer No calibration required!

12 Details for DO sensor - Measuring Principle: Optical - Measurement Range: mg/l DO or : 0-200% Saturation - Resolution: 0.01 ml or 0.1% - Response time: T90 Equivalent of less than 60 Secs - Signal Output Digital - Power Consumption: less than 1 Watt - Temp Compensation: -5 to +50 Deg C - Max Pressure for Sensor: 10 Bar - Input Power: Powered by the Controller - Transient Voltage Protection should be integrated in the sensor - Material of Construction should be Titanium or equivalent - Protection type : IP 68 for both Sensor and Cable 12

13 ph/orp 13 It is an electrode based sensor detecting the mv relating it with PH level from 0 to 14 & ORP is expressed in -2000mv to +2000mv. Measuring Range: ph Signal Output Digital Sensor Check function should be available in the ph sensor Power Consumption: less than 0.5 Watt Temperature Sensor should be integrated in the ph sensor Temp Compensation: -5 to +50 Deg C Max Pressure for Sensor: 10 Bar Max Pressure for Sensor Cable: 10 Bar Transient Voltage Protection should be integrated in the sensor Sensor body: Titanium or Sea Water Version protection type : IP 68 for both Sensor and Cable The Sensor cable supplied along with the sensor has to be up to 100 Meters and of Sea Water version so that it s not affected by acids and presence of highly corrosive media in sample.

14 TSS and Turbidity Optical Total Suspended Solids (TSS) and Turbidity Probes Factory calibrated for 2 types of sludge: Activated sludge 3-7 g/l Primary sludge g/l Calibration: 1 8 pt Correction factor: x Factory calibrated Calibration free Offset (+/- NTU) 14

15 Principle of TSS/Turbidity Turbidity/TSS is a quantitative measure of remaining undissolved solids in water, It measures by 90 degree scattered light principle, passing of optical radiation through a dispersing system dispersed solids reduce radiation power by transforming it to one form of energy, called as absorption, the ratio of penetrating to emitting light beams is measured as turbidity, for lower concentration scattered light principle, for higher concentration back scatter method. Expressed in nephelometric turbidity (NTU) & FNU (Formazin nephelometric unit) 15

16 UltraClean Ultra Sonic Cleaning 16 without cleaning system (30 days) with cleaning system (30 days) A clean sensor ensures accurate measurements! Maintenance-free sensor lowers ownership and operational costs. The UltraClean system is very effective at removing all types of fouling, dirt, biofilms, ect. It can even help avoid lime precipitation. Here are two sensors from a side by side trial. Both were deployed for 30 days, the one on the left without the ultraclean and the one on the right with the Ultraclean. AS you can see, the UltraClean system kept clean for 30 days resulting in better data for better decision making. NOTE; Cycle of Ultrasonic Cleaning is Every One Minute automatically.

17 ULTRASONIC CLEANING VIDEO 17

18 BENEFITS WITH THIS TECHNOLOGY 18 We are using entire spectrum scanning technology measuring from 200nm to 750 nm other than single wavelength scanning making it more productive. No chemicals required other than chemicals requirement like sulphuric acid, distilled water etc. Response time is in seconds other than taking time in minutes. Sensor is IP68 rated best in class. Sensor Probes life is more than 10 year. Ultrasonic cleaning technology. Technology is plug & play with globally & local calibration. All matrix change & configuration is auto feeded can not be deleted. Rugged & reliable sensor make for waste water sites, no aging of sensor due to mechanical damage & contamination. Spectrophotometric sensor are shock proof no chance of danger to the person handling it. With our technology we can add maximum 20 sensor with 1 controller. Communication via modem, Bluetooth, radio transmission, PROFIBUS, MODBUS, RS-232 One cable for power & communications.

19 APPLICATION FIELD 19 Aluminium Cement Distilleries Dye & Dye intermediate/chlor alkali All type of fertilizer/urea plants Iron & Steel Oil Refineries Petrochemical Pesticides Pharmaceuticals Power plant Pulp & paper Sugar Food and Feed Industries Tannery Zinc & Copper Textiles & bleaching Diary industries FMCG sector

20 ABOUT US We Nevco Engineers Pvt. Ltd. is the market leader to supply the online monitoring systems for Ambient Air Quality Monitoring System / Continues Emission Monitoring systems/ Online & Offline Ash and Coal Analyzer / Online & Offline Cement Analyzer / Effluent Water Quality Monitoring System/ Huge range of Portables etc.. We have end to end solution to compliance the CPCB / SPCB s guidelines. We have our own cloud server as for data transfer of all type of real time monitoring systems. We are one of the leading Hardcore Instrumentation company for supplying different type of Instruments. We have our Head Office in Delhi. We established 14 Regional offices across India to serve the services to all our millions of clients. We have more than 95 Sales and Service Engineers responsible for sale, installation, commissioning, servicing and calibration of all instruments which with we deals. BEST SERVICE SUPPORT IS OUR MAJOR AGENDA TO MAKES HAPPY OUR ALL CLEINTS.

21 MAJOR PRODUCT PROFILE 1. Ambient Air Quality Monitoring System > OPSIS, SWEDEN (DOAS) 2. Ambient Air Quality Monitoring System > AEROQUAL (Low Cost ) 3. Stack Emission Monitoring System > OPSIS, SWEDEN (DOAS) 4. Effluent Water Quality Monitoring > WTW( Xylem), German 5. Online & Offline Ash & Coal Analyzer > DFMC, CHINA 6. Online Elemental Analyzer For Coal and Cement > DFMC, CHINA 7. Online Moisture Analyzer / Online Radar Level Meter> DFMC, CHINA 8. Online SPM Analyzer > Dynoptics (U.K.), Opacity Technology 9. Online SPM Analyzer > Sintrol (Finland), Triboelectric Technology 10. Automatic Kjeldahl System (N/P) Analyzer> OPSIS LiquidLine, Sweden 11.Automatic Fat Extraction System > OPSIS LiquidLine, Sweden

22 OUR BRANCHES ALL OVER INDIA

23 AREA OF EXPERTISE

24 TOGETHER WE CAN CHANGE THE ENVIRONMENT AND REBUILD OUR EARTH ITS TIME TO THINK..

25 THANK YOU VERY MUCH FOR YOUR KIND ATTENTION ANY QUESTION?? For Any Query Please contact us at 2. Presented By- DEEPAK SAHAY- Product Manager JAIPAL SINGH Sales Manager NEVCO ENGINEERS PVT LTD, NEW DELHI