algae removal Articles

  • Algae Removal case study

    Best results are achieved with standing water or contained systems. The product works by eating the nutrients that the Algae require thus preventing growth. When used as directed the products are harmless to people and marine life. Algae thrive on nutrients that are present in water, probably due to run off from fields and or treated water discharge. The algae can be controlled very easily, ...


    By Bio Systems Europe

  • Enhanced coagulation for algae removal through the control of zeta potential with diatomite

    Advanced technology for more efficient treatment of algae-containing water is always needed. The feasibility of using diatomite for advanced treatment of algae-containing surface water and controlling algae removal process through zeta potential was investigated in this study. Results demonstrated that the addition of diatomite is advantageous due to reduction of the polyaluminium chloride (PAC) ...


    By IWA Publishing

  • Optimal strategy for algae control in potable water treatment facilities

    This paper presents both a current review of the state-of-the-art in algae removal, and an experimental study of algae removal in potable water supply. Established techniques were investigated by jar-testing on surface raw water samples derived from a lowland river, with the dominant species of algae being Scenedesmus sp (a green algae). These tests were conducted both in isolation and in ...


    By Inderscience Publishers

  • Study on mechanism of algal inactivation and pollution removal by Fe-ACF electro Fenton-like process

    Algae inactivation and algal metabolic pollutant removal of Chlorella and Duneliella salina from seawater by the Fe-ACF electro Fenton-like process has been studied. The experiments were conducted at neutral condition of pH 8.3 (raw water) and 6.2 to break through the limit of strong acidic conditions. Experimental results indicated that the Fe-ACF electro Fenton-like process ...


    By IWA Publishing

  • Performance of PAC/PDM composite coagulants for removal of algae from Lake Taihu waters in summer

    The enhanced coagulation of algae-rich raw water from Lake Taihu in summer was studied by use of composite coagulants. The composite coagulants were composed of polyaluminum chloride (PAC) and polydimethyldiallylammonium chloride (PDM) with various intrinsic viscosity values (0.55–3.99 dL/g) and different mass percentages (5–20%) in the formulation. For raw water with temperature of 28–29°C and ...


    By IWA Publishing

  • Algae separation from urban landscape water using a high density microbubble layer enhanced by micro-flocculation

    Eutrophication of raw water results in outbreaks of algae, which hinders conventional water treatment. In this study, high density microbubble layers combined with micro-flocculation was adopted to remove algae from urban landscape water, and the effects of pressure, hydraulic loading, microbubble layer height and flocculation dosage on the removal efficiency for algae were studied. The greatest ...


    By IWA Publishing

  • DO2E Algae Monroeville, Alabama - Case Study

    Problem: The city of Monroeville, Alabama, had aeration and mixing issues, a sludge build-up, and an algae problem in their sewage lagoon. This was the result of a decrease in the wastewater influent of 90% from a recently lost (shipped overseas) garment manufacturing facility the loss of which filled the sewage lagoon 80% with an increased biosolid loading. ...

  • Ecological swimming pond case study

    In spring 2009 LG Sound installed an LG Sonic in an ecological swimming pond in France. This pond has been suffering from the growth of filamentous algae for a long period of time. Even when the algae where removed, they grew back within a couple of days. Swimming or any other recreational use was made impossible in this pond. The LG Sonic products can shift the balance in a watery ecosystem to a ...


    By LG Sonic

  • Clarification of algae-laden water using electrochemical processes

    Algae contamination of surface water and drinking water supplies is a significant problem particularly in rural areas. A decentralized inexpensive technology that would effectively remove algae from water would be beneficial. Electrocoagulation (EC) combined with electroflotation (EF) as a single process (ECF) is a promising algae harvesting technique with no moving parts that may be powered ...


    By IWA Publishing

  • Gem-D Series - Case Study

    Introduction Clean Water Technology, Inc., the creator of the Gas Energy Mixing (GEM) System, introduces their newest in technology The GEM - D Series for municipal water and wastewater applications. The GEM-D Series is a hybrid dissolved air – flotation system. What makes the GEM-D Series better than the rest? Introduction of air through Liquid Solid Gas ...


    By Clean Water Technology, Inc.

  • Coagulation performance and floc properties of Microcystis aeruginosa in the presence of humic acid

    Coagulation removal of algae in raw water could be significantly affected by humic acid (HA). A series of jar-tests were conducted to investigate the coagulation performance with polyaluminum chloride and floc properties of Microcystis aeruginosa, a unicellular cyanobacteria, in the presence of HA. Meanwhile the coagulation mechanism was explored through the measurement of zeta potential of ...


    By IWA Publishing

  • All clear in lake Twiste

    Danger over for swimmers: what appears to be disgusting, is purely natural – algae Lake Twiste is clean and free of blue-green algae even if at the moment there is a large amount of filamentous algae present. However, this is not a problem and completely natural, Andreas Gründel, Environmental Engineer from the Hessen State Authority for the Environment and Geology explained. A ...


    By bbe Moldaenke GmbH

  • Loftsome Bridge Water Treatment Works, East Yorkshire U.K.: WTW Ozone Plant

    In 1994 Yorkshire Water Services and Ozonia installed ozonation facilities at the Loftsome Bridge Water Treatment Works in East Yorkshire. This plant treats water drawn from the River Derwent into a bankside storage reservoir. It has been installed primarily for pesticide removal and algae control to enhance the slow sand fi lters without the need for expensive ...

  • Removal of heavy metals (Cr, Cd, Ni and Pb) using fresh water algae (Utricularia tenuissima, Utricularia tenuis & Zygogonium ericetorum) from contaminated water

    A study was conducted to check the efficiency of different fresh water algae for removing heavy metals (Cr, Cd, Ni and Pb) from contaminated water. The three most abundant indigenous algal species namely Ulothrix tenuissima, Oscillatoria tenuis and Zygogonium ericetorum were collected from fresh water channels of Parachinar, Pakistan and brought to the laboratory of Soil and ...

  • Improvement on algae and turbidity removal in an integrated flotation and sedimentation unit using side flow-inclined plate settlers: evidence from a full-scale field experiment

    Operation of conventional drinking water treatment plants (DWTPs) is limited by seasonal variations in the characteristics of raw water, such as algae levels and turbidity. In this study, an integrated flotation and sedimentation unit (IFSU) with side flow-inclined plate settlers (SFIPS) was applied to enhance the removal ratio of algae and turbidity in a full-scale field experiment. To ...


    By IWA Publishing

  • Removal and bioaccumulation of heavy metals from aqueous solutions using freshwater algae

    Four freshwater algae, including Cladophora glomerata, Oedogonium westii, Vaucheria debaryana and Zygnema insigne, were tested for their bioaccumulation capacity for cadmium (Cd), chromium (Cr) and lead (Pb) in a controlled environment with an average temperature of 18 °C, and light/dark duration of 12:12 h. Experiments were performed ...


    By IWA Publishing

  • Aerators solve buildup and algae issues on lagoon - Case Study

    Problem The City of Monroeville, Alabama, had aeration and mixing issues, a biosolids buildup and an algae problem in the sewage lagoon. This resulted from a 90 percent decrease in influent after closure of a garment manufacturing facility. Solution DO2E Waste Water Treatment provided two 5 hp floating aerators and two 3 hp floating mixers (suspended ...

  • Swimming Pool Chemistry made easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

  • Swimming Pool Chemistry Management Made Easy

    A new way to control biological activity in your swimming pool without using chemicals.  Healthier to you, savings in chemicals, savings in time and easy pool management.  Take a look at the full article and please contact me any where in the world if you would like to set up a similar system in your pool.  Waterdoc Limited is continuing to use this technology to improve water ...


    By Waterdoc Limited

  • Effects of nutrient loading on Anabaena flos-aquae biofilm: biofilm growth and nutrient removals

    Effects of three different nutrient loadings (low nutrient loading, medium nutrient loading and high nutrient loading, denoted as LNS, MNS and HNS, respectively) on the structure and functions of algal biofilm using Anabaena flos-aquae were investigated using synthetic wastewater. Nutrients removal efficiencies, biofilm thickness, microalgae dehydrogenase activity (DHA) and exopolysaccharide ...


    By IWA Publishing

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