algae bloom Articles
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Algae control in Tamam Aman lake - Case Study
Lake Taman Aman is contaminated by algae and the inflow of liquid waste from the surrounding buildings. Thanks to the blooming of blue-green algae, the lake suffered particularly from malodour. In September 2012, 4 LG Sonic’s where installed in the lake to deal with the stench. The Challenge: Malodor Because of Blue-Green Algae Lake Tamam Aman is contaminated by algae and the inflow of ...
By LG Sonic
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Improved oxygen conditions in the Baltic deep water
Oxygen conditions in the south eastern Baltic have improved thanks to an inflow of oxygen-rich water from the North Sea during November/December 2011. This inflow has also caused the concentrations of phosphate and silicate to increase in the surface waters, which could cause excessive algal blooms this summer. As a result of the relatively large inflow from the Kattegat to the Baltic (about 150 ...
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The Importance of Measuring Dissolved Oxygen Levels During Summer: Low Water, High Temperatures
In a previous blog post, we explored the importance of measuring dissolved oxygen (DO) levels during the late winter and early spring, particularly after a late snowfall. The decreased DO levels which accompany cold temperatures and snowed-over surfaces can stress fish populations, sometimes to the point of winterkill. Summer, at the other end of the weather and temperature spectrum, can also ...
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SolarBee Experience in Inhibiting Submersed Macrophyte Growth
SolarBee technology was developed starting in 1998, and by 2002 the flow rate had been quadrupled to 10,000 gallons per minute (gpm) leaving each machine. The ability to achieve long distance circulation of 100s of acre-feet with one machine has been proven by dye tests conducted by the EPA in Ohio, Chlorine Tracer Tests performed in an 11 acre 90 MG potable water tank in San Francisco, CA, ...
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Algae control in lake - Case Study
Company: Kelab Sahabat Tamam Aman Lake Description: Installation of four LG Sonic® XXL plus devices in the lake (dimensions: 250 x 100 meters) in December 2012 Project objective: Lake Tamam Aman is contaminated by algae and the inflow of liquid waste from the surrounding buildings. Thanks to the blooming of blue-green algae, the lake suffered particularly from malodor. Previous actions to ...
By LG Sonic
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Are Lake Alum Application Strategies Set Up For Failure?
Since 2012, we have been working with stakeholders at a high value 300-acre lake in the US. They have been considering putting in SolarBee® Lake Circulators to control toxic blue-green algae (cyanobacteria) blooms. So far however, they have opted to apply aluminum sulfate (alum) in an effort to tie up phosphorus at the sediment (thus preventing "internal loading” or recycling of ...
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Lowering the blooms
Algae blooms are a regular occurrence at the Canoe Brook Water Treatment Plant in Short Hills, New Jersey. Over the past five years, the plant team has tried various methods to control the growth, which typically persists for weeks or months during late spring and summer. Contributing to the problem is a fairly shallow reservoir that allows sunlight to penetrate to the bottom of the lake, and ...
By LG Sonic
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What Is Dissolved Air Flotation?
In dissolved air flotation (DAF), fine bubbles attach themselves to suspended matter in a liquid, floating them to the surface for removal Dissolved air flotation (DAF) is a water treatment technology often used for the pretreatment of source water, but what exactly does it entail and how does it fit in with other technologies? DAF is a type of coagulation-flocculation technology typically ...
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HABs are an expensive issue
Microscopic algae (phytoplankton) is an important part of the ecosystem because in the presence of sunlight, they produce oxygen through photosynthesis and release this oxygen into the water. However, its massive growth and the production of toxins can generate negative impacts. These natural events known as Harmful Algal Blooms (HAB), can affect aquatic life, human health and local ...
By LG Sonic
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How To Be Agile And Maintain A Competitive Edge During Uncertain Times
The pandemic has changed the flow and processing of information, the nature of business and how we work, and has snarled global supply chains. For people, the impact has included working from home as the norm, an absence of physical interaction, varying travel restrictions, and strains on family ties and social mores. Many companies were caught flat-footed to the shutdown having to ...
By CSignum
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Solar-Powered Circulation Technology Clears Out Blue-Green Algae without the Costs and Hazards of Copper Sulfate
Untitled Document As the annual onslaught of blue-green algae (cyanobacteria) blooms continues to plague fresh water lakes and reservoirs, the use of copper sulfate to control the problem has become dubious. After 50 years of pouring innumerable tons of copper into lakes and reservoirs, the use of this algaecide has increased resistance and resulted in consequential ...
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Exactly How The New Pyrolysis Machines Can Make Waste Agricultural Products Into Money
As most people reside in or close to the cities all across the globe, many are surprised to learn that there is plenty of agricultural waste produced in farm areas. Actually, worldwide, there is about 998 million tonnes of organic waste produced every year. And, that amount actually makes up for huge percentage of all the solid waste on the planet. When you thought the area dump, or landfill, was ...
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Ozone is Not Just for Residential Potable Water Treatment
It has been over 170 years since the d iscovery of the ozone (O3) molecule. Since that time, scientists and engineers have been testing and evaluating ways to use ozone in many different processes, from water and air treatment to surface and food sanitation. The evolution was somewhat slow in the early days, taking nearly 50 years before Europeans found, in 1886, that ozone could be used for ...
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Impacts of Climate Change on the Occurrence of Harmful Algal Blooms
Climate change has been occurring naturally as well as caused by anthropogenic activities over the decades. In relation to the fresh and marine water, the concentration of greenhouse gases results in temperature rise of surface water, lower pH and changes to precipitation, evaporation and vertical mixing of water. All these consequences of changing the environment in combination with excessive ...
By LG Sonic
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EPA assessing wastewater nutrient pollution
Nutrient pollution of waterways is the “single greatest challenge to our nation’s water quality,” according to the United States Environmental Protection Agency. Across the U.S., excess nitrogen and phosphorus are entering waterways, presenting seemingly constant challenges. To address these challenges, the EPA is surveying the nation’s publicly owned wastewater treatment ...
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Algal bloom causes and prevention
Algal blooms are also known as marine blooms or water blooms, and are actually a sudden increase in the population of algae in water scenery. Algal blooms usually take place in freshwater, such as lakes and water reservoirs as well as in marine milieus. They can be easily identified by coloration of the water ensuing from the high density of pigmented cells. Though many types of algae can form ...
By LG Sonic
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RWL Water honored for Nirobox desalination
Frost & Sullivan has conferred its 2017 Global Mobile Water Desalination Systems Award for Customer Value Leadership on RWL Water, based on its analysis of the global mobile water desalination systems market. The annual award goes to a company that “demonstrates excellence in implementing strategies that proactively create value for its customers with a focus on improving the return on ...
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Ultrasound for algal bloom control: background, research and effects
Blooming of (toxic) algae is a global problem that increases each year due to pollution and climate change. In order to restore our aquatic ecosystems, actions must be taken that address excess algal growth. Over the past years, innovations around lake restoration and algal bloom remediation have been introduced and tested. One of these methods is the use of interactive systems that control ...
By LG Sonic
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Tools to improve water quality
This post is part of a series on World Water Week, an annual event designed to draw attention to and discuss global water issues. Read more posts in this series. Agricultural production often comes at the expense of water quality. As my colleague, Mindy Selman, noted in a recent blog post, “Agriculture is the leading source of nutrient pollution in waterways—a situation that’s ...
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