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Biological Oxygen Demand

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s::can spectro::lyser

Overview / Applications / Features / Specifications / Installation / Application Papers

The s::can spectro::lyser. Versatility and precision.

The revolutionary s::can spectro::lyser provides accurate BOD data for the most waste types via correlations between uv/vis spectra and lab BOD values. It is a multi parameter submersible UV/Vis spectrophotometer. This unique technology allows you to measure numerous parameters all at the same time that usually require the use of several different cabinet analysers. Parameter concentrations from g/l down to the µg/l region are calculated from the complete UV/Visible spectrum, enabling a level of precision and long term stability that has not been possible until now. The s::can spectro::lyser can be operated in the internal data-logger mode, via PC/laptop, or via our industrial terminal "con::stat".

The number of concurrently available parameters is relatively unrestricted and pre set "global "calibrations for many applications are readily available.

All of the functions of a high quality 2-beam laboratory spectrometer are packed into the ultra-compact and robust field instrument. s::can's advanced software options allow the utilisation of the spectral information for rapid and effective investigative work on almost any liquid stream from dirty industrial to ulrtrapure water.

Applications for Waste Water

• 0.5 to 5mm measuring path
• Industrial Waste Monitoring in Petrochem,Food, Chem industries
• Providing measurement in concentrated industrial waste through to final effluent mf/RO applications
• Sewer sulphide and load monitoring
• Inlet load monitoring to indutrial and municipal WWTP's
• Feed forward control of chemical dosing to DAF and other treatment processes
• Control of carbon dosing and denitrification systems
• Monitoring for compliance of discharges to the environment.

Features

• Multi parametric
• Real time
• Robust and versatile
• In-situ
• Drift free
• Almost zero maintenance
• Low operation costs
• Requires no chemicals
• Portable
• On board data logging
• Simple data transfer to Excel

Specifications

spectro::lyser
Submersible UV/Vis Spectrometer range	200 - 730nm (2.5nm bandwidth) or 200 to 380nm (0.8nm bandwidth) with increased resolution
Light Source	Xenon Flash Lamp
Mounting	Direct insertion style with 7.5 metre cable
Dimensions	Length 550mm x  Diameter 44mm
Pathlengths	0.5mm to 5mm ( wastewater) 5mm to 100mm ( Water)
Cycle Time	User programmable from 30 seconds
con::stat
Display	Full colour back-lit touch-screen display of current values, spectral fingerprint and historic trends
Signal Output-expandable	1.  Four analog outputs 2.  Six digital outputs 3.  Analog and digital input 4.  RS 485 TCP/IP RS232 as required
Range	1.  <0.1 mg/l to 260 mg/l Nitrate as N 2.  DOC levels from ppb to 10,000mg/l COD 3.  0.001 equiv FTU to 5000 mg/l solids via variable path length modules
Supply voltage	230V AC or 10 - 30V DC at 50 watts maximum Note:  integral user selectable timed sleep mode
Housing	IP65

Installation Options

• Bypass
• Pipe
• Channel
• Tank
• In-bore
• Submerged
• Sewer
  

Application Papers

Advanced Optimization of Biological Nutrient Removal Plants Using Feedforward and Feedback Control - Case Studies

The performance of a wastewater treatment plant can be improved quite easily. Using advanced process control techniques, processes are improved and contentration of discharged components decreased.

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For other possibilities for inlet concentration monitoring please email us or phone to discuss your application.