TREATING AND ANALYZING WATER
ENGINEERING - EQUIPMENT - SERVICES
On-line monitoring
ON-LINE ANALYZERS
- exclusive Romanian distributor of Process Instruments LTD products -
The analyzers of PROCESS INSTRUMENTS, GRUNDFOS, B&C include high precision sensors for immersion or pipe insertion. Process control in areas such as water treatment, environmental parameters monitoring, food and beverage production, wastewater treatment can only be achieved through on-line monitoring.
The list of targeted parameters includes: turbidity, suspended solids, disinfectants (Cl2, ClO2, O3, I2, Br2, PAA), conductivity, dissolved oxygen, temperature, hardness, alkalinity, acidity, silica, chloride, salinity, phosphate, ammonium, nitrate, nitrite, iron, hydrazine, pH, redox potential (ORP), CCO-Cr, total organic carbon (TOC), pressure, gases, level, flow, etc.
The controllers of the measurement systems are designed in such a way that one or more sensors can be connected to them. Outside of the monitoring function, the on-line analyzers operate as local automation loops using limit value settings, proportional control, PID or continuous control. They provide direct control for various execution elements (pumps, solenoid valves, etc.) by means of an analog signal or the limit and alarm relays. Also, through the digital interface, the online analyzers allow their integration into SCADA-type dispatching systems.
Via their digital interface on-line analyzers can be integrated into SCADA control systems. In field applications access to analyzer menus is possible via GSM modem, both for downloading data, for diagnostic or for modifying settings.
OIL IN WATER AND THM ANALYZERS
- exclusive Romanian distributor of Multisensor Systems LTD products -
The range of analyzers from MULTISENSOR SYSTEMS, UK comprises Volatile Hydrocarbon (VOC) analyzers in water for industry-specific concentrations and a trihalomethanes (THM) analyzer.
Analizorul de ulei în apă și poluare MS1200-S este proiectat pentru a proteja instalațiile de tratare a apei potabile în cazul unor evenimente de poluare încă de la captarea apei brute. Asemenea evenimente pot duce la avarii ce impun înlocuirea sau curățarea costisitoare a filtrelor și pot afecta de asemenea calitatea apei potabile produse. În plus, sistemul poate fi utilizat pentru o gamă largă de aplicații cum ar fi monitorizarea apelor de suprafață, a apelor subterane și a apelor industriale.
Reglementările recente tot mai restrictive care impun monitorizarea compușilor secundari proveniți din procesul de dezinfecție (DBP) au dat naștere analizorului total de THM în apă MS2000-S. În prezent majoritatea trihalometanilor cunoscuți sunt cercetați pentru carcinogenitatea lor, în timp ce nenumărate molecule din categorie au fost deja dovedite ca fiind dăunătoare. MS2000 protejează consumatorul astfel, de potențiale efecte nocive pe termen lung provenite din eventuale neregularități în procesul de dezinfecție a apei cu clor.
Multisensor Systems sensors use a non-contact measurement technique called Electronic Nose, detecting gases in the space above the liquid, thus being unaffected by water turbidity and having very low maintenance costs. The instrument is accurate at low concentrations (ppb) for a wide range of compounds including petroleum products (BTEX), polycyclic aromatic hydrocarbons, volatile organic compounds.
Câteva aplicații: monitorizarea punctelor de captare a apei, monitorizarea sistemelor de scurgere și apă pluvială pentru contaminare cu lichizi inflamabili, detectarea compusilor organici volatili sau VOC în apa industrială uzată (MS1210-S), detectarea poluării cu combustibil în apele de suprafață, detectarea străpungerii filtrelor de cărbune de către compuși organici volatili (MS1220-S), protecția membranelor de osmoăa inversă, protecția instalațiilor de desalinizare, monitorizarea proceselor de remediere după evenimente cu poluare.
OPEN CHANNEL FLOWMETERS
SOMMER flowmeters for sewage are suitable for installation in any kind of canal or in gravity flow underground pipe.
Among the most frequent uses are the metering of waste water quantities, both when discharging into natural receivers and for the accurate taxation of industrial users. The monitoring and management of communal sewage systems finds a useful tool in the sewage flow meter, especially in cases where domestic, industrial and rainwater are collected in common canals. The monitoring of water quantities in hydropower units, or in irrigation are other uses of great importance, especially in strict management conditions, imposed for example during drought.
The principle of operation allows for a simple formula for expressing flow:
FLOW = AREA x SPEED
Level measurement is achieved by means of an ultrasonic or radar sensor, whereas velocity measurement is done by a Radar fixed above the channel. The velocity Radar "scans" the wetted section of the channel calculating an average velocity. The continuous measuring of velocity eliminates the need for primary transducer used in traditional systems as a hydraulic resistance (overflow weir , Parshall or Venturi channel, etc.), thus no construction work is necessary.
AUTOMATIC SAMPLERS
SMART STORM automatic water samplers are designed to meet the sampling needs of analytical laboratories and control bodies in the field of water quality and environmental protection.
The construction of the samplers takes into account several very important aspects:
– ensuring a representative sample depends, among other things, on the sampling frequency chosen so as to ensure the possibility of obtaining the most accurate image of the evolution of water quality over time,
– the place and depth chosen for sampling are also extremely important.
These machines are microprocessor controlled and operate based on sampling programs. Average samples can be collected over a given time interval, or instantaneous samples with adjustable sampling quantities and intervals.
Sampling proportional to the flow rate can also be achieved by connecting to the signal of an external flow meter.
Different configurations are possible with containers with different volumes, with one, two, four or eight flasks.
SMART STORM fixed and portable samplers can be placed anywhere thanks to high-performance construction materials, which are rated for the temperature range -25....+40°C. In the insulated interior chamber, they always maintain a temperature of 4°C through a thermoregulation system (heating and cooling) controlled by the microprocessor.
