Water & Wastewater Articles
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Six trends shaping the world´s water planning needs
According to Idrica, monitoring and efficient management of water aquifers, increasing the efficiency of distribution systems, water reuse, the use of non-conventional resources, early warning systems for extreme events and for citizens are the main solutions. Technology is key to addressing inefficient water resource management in many countries. The water crisis has been cited by the World ...
By Idrica
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Wave field visualization using scanned hydrophone measurements
Abstract A simple yet novel method has been developed which is useful for visualizing pressure distributions in acoustic wave fields. The method utilizes the power of contemporary computers to store entire waveforms from the numerous points interrogated in a planar scan. The most useful type of planar scan for the concept is made in the xz plane, as shown in Figure 1. The z-axis typically ...
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Maintaining Water Quality in a Formerly Flammable River - Case Study
Overview Buffalo Niagara Waterkeeper has been a guardian of Western New York’s fresh water for over 30 years. They work with partners, municipalities, and elected officials to ensure the health and protection of New York State’s Great Lakes and shoreline ecosystems. Waterkeeper has improved water quality through volunteer programs, water quality monitoring, restoration projects, ...
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Counting Microplastics in Wastewater
Since the explosion of plastic consumption and production starting in the 1950s, billions of tons of plastics have been produced, and microplastics form during the manufacturing, product use, and breakdown of plastics1. Due to microplastics being released during the entire product life cycle, people are exposed to microplastics in our air, food, and water. Awareness of microplastics in water and ...
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What you should do if brown water comes out of the pipe?
Especially in older properties, ungalvanized or galvanized iron pipes are often still installed in the water system. They tend to corrode. So the water flowing through them carries the rust with it. Whether you need hot or cold water - the number of rust particles is higher than average and a brownish liquid flows out of your faucet. However, the problem does not lie with your water supplier or ...
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NEW Panther Gas Leak Detector
NEW Gas Leak Detector is Highly Sensitive ION Science has announced the launch of the new Panther gas leak detector, featuring a host of new features and twice the sensitivity of its predecessor, the GasCheck G. The first-ever ‘GasCheck’ was launched in 1990, offering industrial users the ability to detect leaks of gases such as hydrogen and helium. Later, more advanced versions ...
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Beyond the Basics: 10 Unexpected Uses for Compost
Are you aware of the countless ways that compost can be used? From enriching soil to reducing waste, compost is a versatile and powerful tool for individuals, communities, and governments alike. Whether you’re a gardener looking to boost your plants’ growth, a farmer seeking sustainable solutions, or a city planner aiming to reduce landfill waste, compost has something to ...
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LC6000 Good Practice Handbook
To ensure long term reliability and efficiency of the SCION Instruments LC6000 it is vital that considerations are taken when operating the HPLC system. SCION Instruments have now released their LC6000 Good Practice Handbook, a necessity for any HPLC user. The following handbook will provide guidelines for instrument preparation and routine operation recommendations to maintain the outstanding ...
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Do you know the qualities of a good welded pipe ?
Welded pipes are widely used in many industries and projects. What do you know about welded steel pipes? Baolai Steel pipe has been working on the production of welded pipes in various sizes and standards. Welded steel pipes refer to pipes that are made by welding steel sheets or steel strips together. Welded steel pipes are widely used in various industries, such as water transportation, gas ...
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UT Dallas Disaster Team uses Eureka Probes in Dangerous Environments - Case Study
Overview The University of Texas/Dallas is developing a method to assess environmental sites that might be dangerous or challenging for humans to enter, such as after a hurricane, oil spill, chemical leak, or other disasters. They have designed an autonomous, integrated robotic system using an unmanned boat, unmanned aircraft, and ground robots. These devices can access and navigate areas that ...
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Project - Treatment of Raw Water from Lake Constance
Sipplinger Berg Waterworks The Lake Constance Water Supply Authority extracts more than 130 million m³ of water every year from locations 60 m below the lake’s surface. EVERZIT® N plays an essential part in ensuring clear and pure supply from Europe’s biggest drinking water reservoir to some four million consumers in surrounding areas. The Sipplinger Berg treatment plant, an ...
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Project - SWRO Plant Hamma / Algeria
Pre-filtration with EVERZIT® N - without silicic acid elution This desalination plant, built in 2007 in Hamma Algeria, is one of the largest of its kind in Africa. It supplies fresh drinking water for one third of the 6 million inhabitants of the country’s capital city ...
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Project - Eriskirch Clarification Plant, Eriskirch / Germany
Making Lake Constance Visibly Cleaner Eriskirch is located directly on Lake Constance, Europe’s largest drinking water reservoir. In the 1970’s this unique natural resource was threatened by eutrophication due to acute phosphate contamination. The problem was immediately addressed by a number of remedial measures, the key one of which was the Eriskirch clarification plant. As Harald ...
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Project - Reconversion from swimming pool to tank - Arnhem - Netherlands
Construction solution applied: Stormwater storage tank Product used: Atlantis Tank Sqm. used: 375 Advantages of the product ...
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Project - WTP in Ankara / Turkey
Successful conversion to EVERZIT® N Multilayer Filtration The Ivedik water treatment plant supplies the drinking water used by the City of Ankara. The plant now operates using over 4000 m³ of German-made EVERZIT® N anthracite filter media. In an upgrade project carried out in the years 2013/2014, the existing 56 sand filter units of the facility were converted to ...
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Project - Sewage Plant Wuppertal-Buchenhofen
Tertiary treatment - Fish Come Back to the River Wupper Providing treatment capacity for approx. 700,000 population equivalents, the Buchenhofen Clarification Plant is the largest wastewater plant of the “Wupperverband” (Wupper River Association).The plant handles up to 370,000 m³ of wastewater per day. Looking to decrease effluent phosphate content, the plant’s ...
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Project - Stormwater storage tank for Merlata Bloom - Urban Smart District - Milano - Italy
Construction solution applied: Stormwater storage tank Product used: Atlantis Tank Sqm. used: 2500 Advantages of the product ...
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Quantitative Analysis of Pulsed Ultrasonic Beam Patterns Using a Schlieren System
Abstract The acoustic output from pulsed ultrasonic transducers has traditionally been analyzed with a hydrophone. Recently, a new faster technique has been developed using the principles of optical diffraction. This schlieren method allows the direct two-dimensional visualization of the ultrasonic beam as a pulse train. In order to obtain quantitative information in the form of temporal-average ...
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Quantitative 2D and 3D Schlieren Imaging for Acoustic Power and Intensity Measurements
Ultrasound imaging manufacturers are required to conduct hundreds of thousands of measurements of transducer power and intensity for research, development, regulatory compliance (FDA/IEC), and production quality assurance. This can delay new product introductions and force trade-offs between product performance and testing costs. High-resolution schlieren imaging provides real-time, 2D ...
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Ellipsoidal hydrophone with improved characteristics
Abstract A new style of hydrophone is being developed to meet or exceed the new recommendations set forth in the AIUM Acoustic Output Measurement Standard [1] as they apply to ultrasound measurements for submission to the U.S. FDA. The device can be calibrated and used over a frequency range extending from below 200 kHz to above 40 MHz. The new hydrophone is basically a membrane style hydrophone; ...
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