trešdiena, 30. oktobris, 2024
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Technical Partners International Inc. / TP Riga
Vienības gatve 109, Riga, LV-1058, Latvia +371 29255223
, SKYPE: ed.kalvins, ed.kalvins@tpriga.lv
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Continuous Water Monitoring
Technical Partners is in the process of introducing a new water monitoring service to the Baltic region.
1 The SERVICE
Provide the services of a Mobile Lab
(ML) for monitoring pollution levels on a continuing basis in streams, rivers and lakes.
2 The TECHNOLOGY
The main analysers in the ML include
3 PARAMETERS MEASURED
- Ultra HTO: TOC (total organic carbon), TC (total
carbon), TIC (total inorganic carbon), COD (chemical
oxygen demand) and TNb (total bound nitrogen)
- Nitrificant
Toximeter: Toxicity
- ISE + standard
addition: NH4,NO3,Na,K,Cd,Cl,F
- Photometer: SO4, PO4, NO2, NO3, TNb, TP, Fe,
Al
- Electrodes: pH,
conductivity, redox
- Weather station:
Temperature, wind, humidity, air pressure, rainfall
In total,
the mobile lab will be able to monitor more than 20 parameters automatically on
site.
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4 How it WORKS
The ML is a trailer that is delivered to the water monitoring site. If electricity is available, it is connected to the trailer, if not the unit has its own power generator. Sampling devices are inserted into the water. The unit can be left unattended during the monitoring period. However, provisions must be made to ensure the systems security.
The ML is directly connected to the
Internet (via a separate secure server). The laboratory can be controlled and
monitored remotely. Data transfer takes place directly after the
measurements. The measurement results of all sensors, electrodes and
analyzers are immediately available to all project partners.
5 The BENEFITS
Regular sampling and laboratory analysis methods do not give an accurate picture of
peak pollution periods. The continuous sampling of the ML provides a more
accurate pollution profile during the monitoring period.
Monitoring results are objective and cannot be fabricated or altered.
Data is provided to a central computer and/or the clients computer on a
continuous basis.
Monitoring is easy for the company or organization wishing to conduct
water monitoring. There is no need to purchase equipment, maintain it or to
hire personnel who need to be trained to use the equipment. They just purchase
the service for the required period. There is no equipment or personnel idle
time, no vacations, no sick leave, etc. Usual rental periods are from 4 to 8
weeks.
6 The MOBILE LAB
The aim of the mobile lab is to
support and improve current monitoring systems. It is a stand-alone solution
that applies the approach of innovative online analysis of water quality and
the fast and comprehensive data transfer to all partners and authorities
involved in the project in a practical manner. Using the ML for the monitoring
of diverse discharges from diffuse sources, from households, as well as industrial
pollution sources, it helps the Client prepare measures for water quality
improvement quickly with comprehensive and reliable information, enabling the
coordinated development and management of water, land and related resources.
The ML is a trailer constructed and
equipped like a chemical laboratory. Protective measures are essential.
Additional equipment such as theft, burglary protection and safeguards for the
environment protection are indispensable and included.
The ML has an autonomous power supply
and is ready for operation quickly.
The ML is able to analyse the most important pollution sources directly on site either in online-mode or by single measurements and operates (24/7). Samples are also retained for further testing if required.
All analysers and sensors are part
of one water cycle to enable the relevant reference of each parameter and
measurement. The cycle starts with the sample being taken through a submersible
pump that is attached to a buoy. The submersible pump including the buoy is
directly connected to the ML.
In addition, the ML is equipped
with state-of-the-art analysers and
measurement methods in order to
receive accurate and reliable
monitoring data. The ultra high
temperature oxidation (HTO) at
1,200°C works without catalysts and determines the total
organic carbon (TOC) including
particles within a few minutes. Usually
catalysts wear out during operation
and may falsify results. Frequent
checks and calibrations are the
consequence resulting in additional
costs. Not using catalysts saves
on operating costs, eliminating the risk of inaccuracy and minimising maintenance efforts. Moreover, LAR's QuickTOC is even able to accurately analyse the most difficult samples containing high loads of particles without clogging or blockages. The special injection unit is specifically developed for such applications. This online analyser is additionally equipped with further detectors and determines the chemical oxygen demand (COD) and total bound nitrogen (TNb).
The online toximeter determines
toxic effects of pollutants on organisms using very sensitive bacteria that are
cultivated directly within the unit. The biomass is constantly
self-regenerating so that the analyser is ready to measure samples at any time.
For each measurement only a small amount of the test organisms are used. The
biomass culture within the fermenter is not contaminated. Since there is always
enough bacteria it is possible to operate this nitrificant toximeter either in
online mode as well as for the analysis of single samples. Usual toxicity tests
have a duration of some tens of minutes or even hours. This analyser's response
time is about 15 minutes.
Further methods and analysers allow
the determination of single pollutants such as ammonia, sodium, potassium, cadmium,
fluoride, chloride, nitrite, sulphate, and more. In addition to the water
parameters the lab records the most important parameters of the environmental
conditions including various weather parameters such as temperature, rainfall,
wind or humidity. Hence, the Client receives full information about the
meteorological conditions in addition to the water quality.
Depending on the samples`
composition and requirements, the following sample taking systems may be used:
- The centrifugal separator (elimination of
coarse contamination),
- the relay-controlled sample taking system by
WaterSam (additional control samples or reserve samples), and
- the patented LAR Flow-Sampler (enables the
clogging-free sample taking).
The unique stand-alone character and
developed data transfer system of LAR, provides measurement results directly
via internet to the authorities and partners. Authorities and project partners
can use the results directly for further updates and evaluation.
The trailer has an approximate size
of 3 x 2 x 2 meters (length x width x height) and weighs less than 1 ton.
This ML needs a short set-up time to
be ready for operation on site.
Because of considerable differences
both of the water level and of the conditions of the riparian zones (interface
between land and a river or stream), sampling has to be carried out by a
special buoy which can be stored on the truck and easily positioned in the
river.
Being mobile, the laboratory is
applicable even to places that are difficult to access. Alongside rivers even
problematic measurement points can be reached.
The measurement period per location
is normally between 1 and 2 weeks.
There is
no longer a need to transport samples over long distances. The ML analyzes the major sources of pollution locally.
7 The TECHNOLOGY MANUFACTURER
LAR
Process Analysers AG of Berlin, Germany, developed into the leading supplier
of online analysers for the determination of sum parameters in water. See http://www.lar.com/. LAR has participated in a pilot project in South Africa by developing
and supplying a mobile laboratory (ML) for water monitoring.
See
http://www.lar.com/news-events/news-display/presse/zeige/Pressemeldung/iwrm-in-south-africa-lars-mobile-lab.html.
Technical Partners (TP Riga SIA / Technical Partners International Inc.) has represented LAR Process Analysers in the Baltic States since December, 2008. The TP Riga office is located in Riga at Vienības gatve 109.
Ed Kalvins BASc - Chemical Engineering (University of Toronto, Canada), Owner / Project Director. 40 years of Project Management, Manufacturing Management and Engineering Management experience in Canada and Latvia.
Alvis Līdums - BA Economics Manufacturing, BA Business Administration, MA Public Administration (University of Latvia). Project Manager. Industrial Engineering and Project Management experience. Technical specialist.
COMMERCIAL
ARRANGEMENTS
rental on a daily
basis at a rate determined by the requirements
Contact Information:
Ed Kalvins, +371
29 255 223 ed.kalvins@tpriga.lv SKYPE:
ed.kalvins
Alvis Līdums, +371
29 194 021 alvis.lidums@tpriga.lv SKYPE:
alvis.lidums1
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