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HACH

About

Whether you want to check the carbon content of waste water or keep an eye on the salt content of your process water, when it comes to water analysis, HACH LANGE is the perfect choice. We have years of experience in water analysis and offer a broad range of services.Our company history dates back to Berlin 1933, when Dr. Bruno Lange set up a company in his own name employing six people. Inventions such as the photometer and later on cuvette tests have revolutionised the field of analysis, making it possible to conduct extensive analyses without the need for in-depth knowledge of chemistry.HACH LANGE was born in 2004 when Dr. Bruno Lange joined forces with HACH, an American company specialising in electro and photochemistry. The expertise of these two companies is now combined, benefitting you, our customers!That's not all, our company is continuing to grow and already has 22 subsidiaries around the world, including branches across Europe, China and the USA.

Contact

Miss Sarah Blayds
Laser House,

Ground Floor,Suite B
Waterfront Quay, Salford Quays
M50 3XW
uk.hach.com

HACH LANGE nutrient monitors shine in final effluent trial

Commenting on the results of a 4 month trial of nutrient monitors, HACH LANGE's John Moroney says he is absolutely thrilled with the report on his company's instruments which outperformed the competition in almost every measure.

Background
The levels of nutrients, such as ammonium and phosphates, entering natural water resources is of great concern because these nutrients can either remove vital oxygen or lead to excessive plant growth and algal blooms, which harm wildlife through eutrophication. In addition, high levels of phosphate or nitrate in abstracted water significantly add to the cost of drinking water treatment. The management of nutrient levels is therefore dependent on the ability to monitor accurately and reliably, and as a result, a group of UK water companies organised a joint monitoring trial to determine the best instruments.

Trial results
The trial involved the installation of turbidity, phosphate and ammonium monitors from the market's leading manufacturers at two designated final effluent plants within the UK. HACH LANGE provided an AMTAX sc ammonium analyser, a PHOSPHAX sc phosphate analyser and a SOLITAX sc turbidity analyser for the trial.

The SOLITAX sc performed better than any of its competitors and as a result, Severn Trent Water has adopted the instrument in a framework agreement.

Summarising the report on the AMTAX sc and PHOSPHAX sc, John Moroney says "We are delighted to report that these analysers came first in almost all of the key performance measures, which included correlation to diurnal data, variance to laboratory data, and maintenance requirements. However, the panel decided to take the List Price as opposed to current framework prices for the commercial part of the assessment. However, the overall results are extremely encouraging and I know that our customers are very impressed with the technical performance of these units coupled with such low levels of maintenance. The manufacturers did not have access to their equipment during the trial, but over the 4 month period, the AMTAX required 2 hours of maintenance and the PHOSPHAX just one hour!"

Monitoring nutrients at a reduced cost from inlet to effluent
The whole life costs of the Amtax sc for Ammonium and Phosphax sc for orthophosphate have been drastically reduced as a result of the chemistries employed. With the Amtax sc, a gas sensing electrode is utilised which means that reagent consumption is halved in comparison with traditional colorimetric analysers. For the Phosphax sc, the stability of the vanado- molybdate method, means that calibration is not necessary and therefore no calibration standards are required.

The results of this trial will be of great interest to process managers who have to comply with tighter discharge consents as a result of the Water Framework Directive. Couple this with the fact that HACH LANGE can now offer sample preparation systems that deliver continuous samples from the inlet all the way through to final effluent, John Moroney firmly believes these analysers lead the way in reliability, accuracy, stability and the lowest whole-life costs.

For further information please email HACH LANGE LTD

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