BIOTECTOR TOC Analysers

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1 BIOTECTOR TOC Analysers Reliable and accurate measurement of Total Organic Carbon in potable and waste water streams Adrian Hughes Process Sales Consultant

2 What is TOC The TOC test measures the amount of organic carbon present in a water sample. Inorganic carbon (carbonates) removed first by acidification. Total Organic Carbon (TOC) Total Carbon (TC) Total Inorganic Carbon (TIC)

3 Why is TOC Important? The significance of TOC is growing, in some European countries TOC has already replaced COD as a monitoring parameter TOC can be monitored in wastewater to control industrial pollution and optimise treatment processes Measuring TOC allows WwTP to monitor the organic content of their effluent and discharge source to ensure favorable conditions for aquatic life and drinking water sources

4 How is TOC Measured? The TOC test uses heat, ultraviolet light, or a strong chemical oxidant (or a combination of the three) to oxidise organic compounds to CO 2 and H 2 O CO 2 generated is measured to give TOC Current Hach Lange TOC Methods Continuous Measurement (UVAS) Online Instruments (Biotector) Colorimetric Method Laboratory Instruments

5 BioTector Suite Wall mounted version available TOC Total Organic Carbon Can handle SALTS GREASE OILS FATS & PARTICULATES TN TP COD BOD Total Nitrogen Total Phosphorus Chemical Oxygen Demand Biochemical Oxygen Demand Patented Self Cleaning Technology VOC TC - TIC Total Carbon Total Inorganic Carbon Volatile Organic Carbon

6 SAMPLING: A representative unfiltered sample from the stream to be measured is pumped into the analyzer. The sample injection valve automatically selects the appropriate sample volume for the optimum measuring range. TIC DETECTION: Acid is added to lower the ph so that inorganic carbon is sparged off as CO2. This is measured to ensure TIC is not carried over into the TOC. OXIDATION: The BioTector s patented oxidation method (TSAO) is used to achieve total and complete oxidation of sample, including organic carbon to CO2. TSAO utilizes hydroxyl radicals generated within the analyzer by combining oxygen, which passes through the ozone generator, with sodium hydroxide. TOC MEASUREMENT: To remove the CO2 from the oxidized sample, the ph of the sample is lowered again. The CO2 is sparged and measured by the specially developed NDIR-detector. The result is displayed as Total Organic Carbon (TOC). CLEANING: The entire system is automatically self-cleaned by the reaction process during every cycle. No additional cleaning solution is required.

7 Worry Free TOC Breakthrough TOC Technology: Two Stage, Advanced Oxidation (TSAO) Accurate and reliable results with 99.8% uptime Benefits of TSAO 1. Organics in sample completely oxidised to CO 2 2. The CO 2 is measured by the specially developed NDIR CO 2 analyser and the TOC result is displayed 3. Minimal reagent usage 4. Self cleaning process prevents build up in the reactor Hach Lange

8 SELF CLEANING TECHNOLOGY The outside surface of the sample tubing is covered with fatty material in a dairy plant. The internal surface of the tubing is kept clean with the self cleaning technology Hach Lange

9 BioTector B7000 TOC Analyzer Applications Monitoring municipal and industrial wastewater treatment plants Influent & Effluent Monitoring river water Monitoring surface water Monitoring landfill sites Hach Lange

10 Real-time TOC Tightens Effluent Control at Greencore A food manufacturing facility in Selby, UK, has installed a continuous TOC (Total Organic Carbon) Biotector B7000 monitor which has dramatically improved the site s capability to refine and improve the plant s wastewater treatment process. As a result the plant is better able to quickly respond to changes in the influent. The signals from the Biotector have been integrated in to the effluent plant control system. Any loads that exceed a predetermined level are diverted to the site calamity tank Hach Lange 11

11 B7000 Analyzer Range: 0-50ppm up to 0-40,000ppm Repeatability: 3% of reading or 0.3mg/l Up to 3 calibrated ranges with automatic range selection Dimensions 1250mm x 500mm x 320mm TOC & TIC results in 7 minutes Configurable for TC & VOC, TN, TP After correlation COD, BOD Uptime > 99.86% Hach Lange

12 BioTector B3500c TOC Analyzer Applications The B3500c delivers 99.8% uptime with the lowest operating cost in clean water applications: Condensate Return Cooling water Potable water Demineralised water Waste water from RO Clean Carbon Bed Absorber water Hach Lange

13 Organic carbon- the role in drinking water control at Tullich WTW Evaluation of TOC from raw and treated streams allows the establishment of ozone treatment efficiency, in real-time. With assessment of DOC in advance of chlorination, prediction of the potential for Trihalomethanes forming is achieved. Long term strategy is to build a profile of ozone vs colour vs TOC/DOC cross-correlation, to provide an accurate dosing table for operations Hach Lange 14

14 Technical Data B3500c Measurement Infrared measurement of CO 2 Method: after oxidation Measures: Range: Service Interval: TOC, TIC, TC, and VOC 0 to 25 mgc/l with exceedance tracking up to 100 mgc/l 6 months Permissible Chloride Range: Up to 30% Particle Size: Cycle Time: Dimensions: EExp / Hazardous Location: Up to 100 μm Typically 5 minutes, 30 seconds 750mm x 500mm x 320mm (H x W x D) ATEX certification options are available Specifications subject to change without notice Hach Lange 15

15 Reagent Costs that Don t Kill the Bottom Line Only replenish reagents every six months in comparison to other systems requiring bi-weekly or monthly replacement Reduced operator interaction with six month replacement intervals Low reagent consumption (19 L reagents last 6 months) Hach Lange

16 Any questions?