Post on 07-Mar-2018
transcript
Real Time Water Quality
Monitoring Workshop on ‘Hydro-meteorological Instrumentation in India’
15th September 2014
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Modern Water plc
• UK Group, founded 2006, ~ 50 staff worldwide
• Advanced innovative water treatment and monitoring
• Offices - Europe, USA, Middle East, South Africa,
Japan, China; Global Distributors – Sales in 50
countries!
Water and wastewater treatment
• Novel Forward Osmosis
• Electro-coagulation
Monitoring
• Fluorometers - BOD, Algal blooms, petroleum
hydrocarbons
• Trace (Heavy) Metals
• Toxicity - Microtox®
• Multisensor - VOC and THMs
• Environmental test kits for PCB, PAH, SRB, polymer etc
Fluorometry
• Fluorescence is the
emission of light by a
substance that has
absorbed light.
• Different molecules absorb
and emit light at specific
wavelengths.
• The concentration is a
function of the intensity of
the emitted light.
3 Bringing new technology to the water industry
HIGH SPECIFICITY AND HIGH SENSITIVITY!
BODChek
• New range of highly sensitive in situ UV fluorometers.
• Portable and online detection to Provide Real Time Monitoring of Organic Pollution.
• Detects fluorescent proteins (Tryptophan) that are inherent within sewage and slurry.
Key Applications
• Effluent contamination monitoring.
• General pollution event investigations.
• Water quality catchment surveys.
Why Tryptophan?
5 Bringing new technology to the water industry
• An essential amino acid in
human diet
• Main component of protein
fluorescence
• Associated with microbial
activity
• Sewage & faecal contamination
of waste waters, e.g. agricultural
runoff
Fluorescence correlates with BOD measurements!
Outflow from small MWW
treatment plant
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AlgaeChek Ultra
• Algae deplete oxygen and certain species of
blue-green and red algae can even poison
aquatic life and pose a threat to human, domestic
animal or livestock health.
• Modern Water’s algae and algal toxin detection
technologies provide fast, accurate and
quantitative test results.
• 3 configurations available
• Chlorophyll-a, phycocyanin, turbidity (freshwater)
• Chlorophyll-a, phycoerytherin, phycocyanin (coastal)
• Chlorophyll-a, phycoerythrin, turbidity (seawater)
PetroChek
• Portable or on-line UV fluorimeter
• Identical to BODChek, but detects
at different wavelength
• Measures dissolved PAH (poly-
aromatic hydrocarbons) in water
• Applications:
• Oil refineries
• Fuel storage – leak monitoring
• Off-shore oil platforms
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Trace (heavy) metals
• Examples:
• Copper, Lead, Cadmium, Zinc, Arsenic, Uranium
• From where?
• Industrial processes – car manufacturing,
battery recycling, metal plating, electronics etc….
• Mining – current mines, disused mines
• Naturally occurring – arsenic in bedrock in
SW UK (+ Italy, Turkey, China, Bangladesh, W
coast of America….)
• Drinking water contamination – accidental and
deliberate
• What’s the problem?
• Toxic to humans
• Toxic to environment 9
On Line Trace Metals Products
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OVA7000 and OVA7000 Dual
Cell
• Unique on-line monitor
• Voltammetry-based
• Low detection limits (0.5 µg/l)
• Programmable for a variety of
metals and sample types
• 24/7 on-line monitoring with
process control
• Built in pre-treatment
OVA7000 DualCell OVA7000
Portable Trace Metals Monitoring
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• PDV features and benefits:
• Low detection limits – able to detect to WHO
drinking water standards
• Portable – immediate results
• Analysis at remote locations with poor access
• Tracing contamination source and spread
• Use after natural disasters
=> Environmental protection
=> Human health protection
=> Flexible, dynamic sampling saves
man-hours compared to lab samples only
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Toxicity Monitoring
• A toxicity test measures the effects of a chemical
on a living organism
• The severity of toxicity is proportional to the
exposure concentration and exposure time.
• Toxicity tests measure:
- Unknown compounds
- Effects of mixtures (synergistic effects)
• Examples of toxicity tests:
- Daphnia (plankton crustacean)
- Fathead Minnow (fish)
- Vibrio fischeri (bioluminescent bacteria)
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Microtox® Reagent
Sick or dead bacteria with little or no light Healthy, bright, luminescent bacteria
Non-toxic Toxic
Gold Standard for Toxicity Monitoring! Validated data on >2700 chemicals.
25 years of Industrial and Research Experience.
Vibrio fischeri - bacteria indicator of human toxicity.
Microtox® M500 and Deltatox
• Microtox
• Bench-top system
• Toxicity – EC50, ISO protocol
• M500 Analyser
• Acute Toxicity Reagent
• Accessory reagents
• Deltatox
• Portable system
• Toxicity and ATP (bacterial contamination)
• Deltatox II Analyser
• Microtox SOLO reagent
• Accessory reagents
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Microtox® CTM: On-line
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• Acute ‘broadband’ toxicity.
• Microtox® CTM is a site-based, broad range,
Continuous Toxicity Monitor (CTM).
• It continuously measures the chemical toxicity
of a water source, giving instant indication of
water health.
• Fully automatic instrument that offers a 4-
week, autonomous operating cycle.
• Low level of skill for both operation and
maintenance.
Microtox® Users (Partial list)
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NMRL
Toxicity – Microtox® at Olympics
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• Microtox used at every Summer
Olympics since 1984
• Provides additional confirmation water
is safe during the event
• In London Thames Water used
Microtox at their lab and tested
samples every day
• In Beijing Microtox was used every
15 min at critical places
• Protects athletes and public from
deliberate or accidental contamination
Environmental test kits
• Antibody-based
=> Specific, sensitive
• For laboratory and field use
• Contaminated land – soil and water
• Pesticides – soil and water
• Algal toxins – water only
• ATP – test for bacterial contamination
Drinking water, oil/gas industry,
heating/cooling industry
• SRB – test for specific type of bacteria
(Sulphate Reducing Bacteria)
Cause corrosion in oil/gas pipes
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Environmental test kits
• QuickChek Strip Test range
• On-going work to modernise, simplify
and improve field test kit range
• Instead of test tubes – uses small test
strip
• Minimise pipetting multitude of
reagents
• SRB and pesticides
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Multisensor – Online VOC and THM
• Features
• Volatiles detected by head-space measurement
• ug/l output (Henry’s Gas Law)
• Proprietary e-nose – polymer-coated sensor head
• Non-reagent, non-contact
• Low maintenance
• Applications VOC
• Petrochemical site discharge
• Drinking water intake
• Control activated carbon beds
• Protection of membranes
• Applications THM
• Chlorinated water with organics
present
Data Provision
Modern Water specialise in the manufacture and
sale of specialist water monitoring equipment and
the design and supply of bespoke monitoring
stations.
• Online instruments can provide real time data via:
• LAN, Ethernet, 4-20mAmp, GPRS Modem
• Modbus, TCP/IP, WIFI, USB
• Portable Instruments and field tests provide:
• Real time data in the field
• Spatial data with location logging
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MW in India
• Sales of Microtox and Trace Metal Products.
• Well established distribution partners with technical support.
• Saksham Analytical Instruments Pvt. Ltd.
• Flourometers (BODChek and AlgaeChek), Trace metals and
Environmental Test Kits.
• Orbit Technologies
• Toxicity and Trace Metals.
• Existing products - Committed to local reagent manufacture and
monitoring equipment assembly for large orders and market
expansion.
• New product manufacturing partners to be identified.
22 Bringing new technology to the water industry
Saksham Analytical
Instruments Pvt. Ltd.
• Established in 1997.
• Represent following Worlds leading companies;
• Modern Waters UK.
• Aquaread UK for Multipara meter water Quality & Depth
Loggers.
• Shimadzu TOTAL CARBON ANALYSER (TOC) in Western
Region only.
• Aguaread produce a range of multi-parameter probes for
the detection of:
• Dissolved Oxygen, pH, ORP, Electrical conductivity, Salinity,
Resistivity, TDS, SSG, Temperature, Depth / Level, Ammonium
/ Ammonia, Nitrate, Chloride, Calcium, Fluoride
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Any questions – please contact
Neil Townend
Managing Director, Monitoring
Neil.townend@modernwater.co.uk
+44 1493 696000
www.modernwater.com
Thank you!