Connect with us

Water & Waste Water

New laying method in water
New laying method in water

Published

on


Water & Waste Water
Rohr Rohre Pipe Tube Water Wasser Waste Abwasser Industrie Industry

For the rehabilitation of a drinking water pipeline in the district of Aalen, 200 km north-east of Munich, Germany, the Denso Group Germany protects weld seams from corrosion very quickly and efficiently using a new laying method that floats in water.

For this method, the pipeline was first laid in the water: Just ten minutes after applying the Densolen-AS50 tape system to the weld seam, the pipe was pushed into a tunnel flooded with water. The pipeline was then drained four months later. This is impressive as pipelines are normally not immediately and permanently exposed to corrosive media. The test results provided by the “Verband der Fernwasserversorgung” (Remote Water Supply Association) prove: The standard requirements of DIN EN 12068 for a high-quality protection of the weld seams are satisfied.

Direct flooding and extended operation in water are major challenges for field joint applications. This unprecedented method shows: The three-ply Densolen tapes fuse together very rapidly. A diffusion-resistant protective hose is quickly generated, with reliable performance even when permanently exposed to fluids. The single-tape system was applied in at least a three-layer wrapping using the engine-driven Densomat-11 application device.

The drinking water pipeline is one of the region’s main arteries. One of the two steel pipelines, with a nominal diameter of DN 1200, was restored for long-term use. Water flows through two parallel tunnels over almost two kilometres at 1,800 litres per second. The construction measure is expected to be completed in the spring of 2019.

News Water & Waste Water

Lonza
Divestment of Water Care Business

Published

on

Lonza announced the completion of the divestment of its former Water Care business and operations to Platinum Equity for USD 630 million. The strategic agreement between both parties was already announced on 1 November 2018.

The company plans to re-invest parts of the proceeds of the Water Care disposal into the Healthcare Continuum and will continue to focus on deleveraging as has already been communicated. Earlier Lonza also announced the internal alignment of its business structure and a new Executive Committee member to further strengthen the company’s position along the Healthcare Continuum.

Continue Reading

Videos Water & Waste Water

Belt Dryer
Sewage Sludge Drying

Published

on

Huber Industry Process

Example STP Innsbruck: Huber Belt Dryer BT 16 including an innovative heat recovery concept.

Continue Reading

Measurement, Instrumentation, Control & Automation Pharmaceuticals Water & Waste Water

Handbook of Methods
Compact work of reference for photometry

Published

on

Compact work of reference for photometry
Picture: Lovibond

There is something wrong with the concentration of nitrate in the drinking water. That much is sure. But nobody knows exactly, how and with which this suspicion can be confirmed. For this it only takes one touch or mouse click from now on. The new Lovibond Handbook of Methods turns the search for the right testing method in water analysis into a truly simple operation. It summarises everything which is necessary for reliable and fast test results at a glance.

After shortly turning pages, the new Handbook recommends not only, which instrument and which reagents is needed so that everybody can determine the wanted parameter. Also less experienced users arrive safely, if they follow the intuitive pictograms. The Handbook explains exactly, which cuvette is suitable for the test, how which powder or tablets have to be added to the sample, which disturbances possibly arise during the test, it gives further recommendations for the analysis and adds further literature. It is a reference book, which contains much more than a compendium of all current 161 Lovibond test methods.

Between more than 900 pages the user also finds practical work faciliation. The barcodes on each front page of the test method start automatically the right test recognition in the suitable instruments. So it is possible to start the appropriate test method directly and especially fast. For own work processes the users can collect the methods including barcodes individually, which simplifies a lot. The Spectrophotometers XD 7000 (154 methods) and XD 7500 (155 methods) are the first Lovibond instruments which maintain this user-friendly operating concept.

The corresponding order number for instruments, reagents and the necessary accessories are also added as practical supports to each Lovibond method. Cross-sensitivities and literature references are additional supplements. Who wants to acquaint with the basics of water analysis finds detailed information in an introduction chapter. A glossary completes the comprehensive reference.

The printed version weights 1,25 kilo. To whom this is too heavy can download the digital edition on the Lovibond homepage and get detailed information about each test method. Incidentally the base of the new Handbook of Methods is a new form of documentation for  Lovibond products: Manuals and detailed descriptions of methods are from now on offered separately.

Continue Reading