Lake Water Articles

  • LumenAER Aeration at WWTP in Panama - Case Study

    PROJECT DETAILS LOCATION Villa Mercedes, David City, Chiriquí, Panama CUSTOMER National Council for Sustainable Development (CONADES) SOLUTION LumenAER® Solar-powered Circulators, SB-T Model TECHNOLOGIES Wastewater Aeration Solar-powered circulators reduce ...


    By Fluence Corporation

  • Aeration and Mixing Bring Hussain Sagar Lake`s Ecosystem Back to Life

    Overview Hussain Sagar Lake in India faced an inflow of untreated waste and pollution causing decreasing DO levels and foul odors in the nearby community. An even more critical threat was eutrophication, or an excessive number of nutrients in the body of water, choking out the natural aquatic life. Given the lake is stagnate, circulation and the distribution of efficient aeration ...

  • Safety vs. Environment Protection: Study Discovers Increasing Salt Levels in Lakes

    A recent study published by the US-American National Academy of Sciences revealed an increasing salt amount in form of chloride in rural and urban freshwater lakes around the American continent. The scientists believe, that mainly road salt distributed on icy roadways is to blame. Increasing salt levels threaten eco systems Road de-icing salt is blamed for rising salt levels in ...

  • Great Lakes restoration is under threat. Here’s why that matters

    Degraded by decades of pollution, the North American Great Lakes are finding new life through cleanup efforts now threatened by proposed federal budget cuts. The St. Louis River, which flows into Lake Superior — the greatest of North America’s Great Lakes — has a long and turbulent history. Once a portal for Native American trade and a garden for wild ...


    By Ensia

  • The census application case of USV lake - Case study

    Time: June 2015 Equipment: sample collection monitoring USV , portable monitoring instruments Take the water quality survey of 53 representative lake in Wuhan. Collecting and recording sample automatic from these 53 lakes by USV, monitoring and recording water quality, PH, temperature, dissolved oxygen, conductivity, turbidity online, The ...


    By Oceanalpha Co., Ltd.

  • Case Report: ESM30 in lake monitoring

    Background Wuhan is the capital city of Hubei province in central China and has 166 lakes that cover 2,217 square km (856 square miles) and approximately 25% of the city.  This surface water coverage is one of the world’s highest.   The Wuhan Environmental Protection Bureau (WHEPB website: http://www.whepb.gov.cn) is responsible for monitoring the surface water ...


    By Oceanalpha Co., Ltd.

  • Water is a key concern on Earth Day 2017

    Although the official focus of this year’s Earth Day is environmental and climate literacy, water is still very much a key concern for participants holding events across the United States — and around the world. A need for clean water for future generations was the impetus for the original event, and the need to protect water is no less important today. Earth Day was established in ...


    By Fluence Corporation

  • The best way to restore environments in the face of climate change

    Florida’s Kissimmee River once flowed freely. Fish, birds and other wildlife dwelled in the wetlands it fed. But in the 1960s, spurred by public outrage over flooding, the U.S. Army Corps of Engineers straightened the winding waterway and turned it into a drainage canal. Flip forward a few decades and the river is returning — at least in part. The U.S. Army Corps of Engineers has ...


    By Ensia

  • This polluted lake shows why we are all stakeholders when it comes to clean water

    When environmental protection gets short shrift, the price we pay can be staggering. When I visited Onondaga Lake in 1999 as part of research I did as a student at Cornell, there was no evidence the lake was once home to vibrant waterfront resorts. Yet, in the late 1800s and early 1900s, Onondaga was considered “ ...


    By Ensia

  • Dynamic simulation of sediment resuspension and its effect on water quality in Lake Taihu, China

    Quantitative studies on sediment release fluxes and their impact on water quality are important for water pollution control, ecological restoration, water safety, and human health. In this study, we conducted high-frequency, synchronous field observations of meteorology, hydrology, and water quality to determine the relationship between sediment release rate and wind speed in the central ...


    By IWA Publishing

  • Researchers inventory plastics pollution in Great Lakes

    A recent inventory of plastics pollution in the Great Lakes will help prevent continued pollution and provide a baseline for those working to clean the lakes, which supply local residents with drinking water. The Great Lakes Basin is a system of five bodies of water and their tributaries along the northernmost tier of the United States, four of which border Canada. They include Lake Superior, ...


    By Fluence Corporation

  • Diffusion flux of phosphorus nutrients at the sediment–water interface of the Ulansuhai Lake in northern China

    Overlying water and sediment samples were collected from 11 locations in Ulansuhai Lake in June of 2012 to determine the concentration of dissolved inorganic phosphorus (DIP) in the interstitial water, overlying water and sediment and to estimate the diffusion flux of DIP at the sediment–water interface. The DIP levels in overlying water were 0.004–0.185 mg/L (average = 0.062 mg/L), while they ...


    By IWA Publishing

  • Water transparency distribution under varied currents in the largest river-connected lake of China

    Water transparency is an important ecological indicator for shallow lakes. The largest shallow lake, Poyang Lake, as well as the most typical river-connected lake in China was selected as the research area. In view of the complicated water-sediment conditions induced by its frequent water exchange with external rivers, the dominant factors driving water transparency were determined against the ...


    By IWA Publishing

  • Lake hydrology, water quality and ecology impacts of altered river–lake interactions: advances in research on the middle Yangtze river

    Water and mass exchange between rivers and lakes are key processes that maintain the health of the ecology of river–lake systems. Alteration to river–lake interactions have great impacts on water and mass balances. Naturally connected to the middle Yangtze River are the Poyang Lake and Dongting Lake, which are the largest and the second largest freshwater lakes in China. The operation of the ...


    By IWA Publishing

  • Algae Control in Lakes and Reservoirs

    There are plenty of harmful algal bloom related cases worldwide but what is evident is that their number elevates with each year. Excessive cyanobacteria (blue-green algae) and green algae growth in a water reservoir can have negative consequences for the water quality. The water turns green, sand filters can clog, and some algae can produce geosmins and MIB, giving the water an ...


    By LG Sonic

  • Notable increases in nutrient concentrations in a shallow lake during seasonal ice growth

    Nutrients may be eliminated from ice when liquid water is freezing, resulting in enhanced concentrations in the unfrozen water. The nutrients diluted from the ice may contribute to accumulated concentrations in sediment during winter and an increased risk of algae blooms during the following spring and summer. The objective of this study was to evaluate the influence of ice cover on nitrogen ...


    By IWA Publishing

  • Water quality characteristics of Poyang Lake, China, in response to changes in the water level

    As one of the few remaining lakes that are freely connected with the Yangtze River, Poyang Lake exhibits large annual water level (WL) fluctuations. In this study, weekly samples were collected at the north end of Poyang Lake from September 2011 to December 2012, and we investigated the mechanism of limnological responses to fluctuations in the WL. The study covers three seasons that were ...


    By IWA Publishing

  • Investigation into mixing in the shallow floodplain Poyang Lake (China) using hydrological, thermal and isotopic evidence

    Although mixing in lakes has significant environmental and ecological implications, knowledge of mixing dynamics for shallow floodplain lakes has received little attention. In this study, hydrological, thermal and isotopic investigations were undertaken to provide evidence for the mixing in the large, shallow floodplain Poyang Lake (China). Depth profiles of water velocity, water temperature ...


    By IWA Publishing

  • Widespread Plastic Pollution Found in Great Lakes Tributaries

    Tiny pieces of harmful plastic, called microplastics, are prevalent in many rivers that flow into the Great Lakes, according to a study published today in the journal Environmental Science & Technology. Results are also illustrated on a new USGS microplastics website. Microplastics ...

  • Inter-annual variations of Poyang Lake area during dry seasons: characteristics and implications

    Variations in a lake area constitute an important indicator of the modifications of the lake hydrology. This paper explores the inter-annual variations of the Poyang Lake area during the dry seasons occurring within the 1961 to 2010 period and further quantifies the severity of dryness recently endured during the 2000s. A physically based hydrodynamic model of Poyang Lake established the ...


    By IWA Publishing

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you