Algae in wastewater range in size from tiny single cells to branched forms of visible length. \u00a0Unicellular green algae such as Chlorella and Scenedesmus have been widely used in waste-water treatment because they often colonize the ponds naturally, and they have fast growth rates and high nutrient uptake capabilities per unit biomass due to their small sizeClasses of algae that are commonly found in wastewater treatment plants are:<\/p>\n
(a) Green (chlorophyta) – These are freshwater species, can be unicellular or multicellular. Motile green (euglenophyta) – These are colonial, unicellular and flagellated.
\n(b) Yellow-green (chrysophyta) – Most forms are unicellular. In this group, the most important are diatoms which have shells composed mainly of silica.
\n(c) Blue-green (cyanophyta) – These are unicellular, usually enclosed in a sheath and have no flagella. An important characteristic is their ability to use nitrogen in cell synthesis, from the atmosphere as nutrient.<\/p>\n
Some of algae strains that can grow well in municipal wastewater and their roles in treating the waste water are given below:<\/span><\/p>\n Chlorella<\/strong> – Chlorella is used for the removal of lead (II) ions from wastewater. It is also used to remove nutrients (N and P) from domestic wastewater. It is used in the treatment of diluted piggery waste and in the detoxification of cyanide from wastewater. Scenedesmus abundans<\/strong> – It is used to eliminate cadmium and copper present in contaminated water and also in the process of detoxification of cyanide from wastewater.<\/p>\n Sargassum muticum<\/strong> – It is used for the removal of Methylene Blue dye from wastewater. Spirulina sp<\/strong> – It can also be used for the biosorption of heavy metals like antimony and chromium present in wastewater. Botryococcus braunii<\/strong> \u2013 It is used for the removal of nitrogen, phosphorus and other simple inorganic compounds from industrial wastewater, most commonly in piggery wastewater. Dunaliella salina<\/strong> – It is used for the removal of heavy metals like Cu, Cd, Co and Zn and also in the treatment of hypersaline wastewater. Ankistrodesmus sp<\/strong> \u2013 It has immense capability to absorb metals, and there is considerable potential for using them to treat wastewaters. It removes mercury, arsenic and selenium through methylation. Actinastrum sp<\/strong> – Removes copper from wastewater. Microactinium sp –<\/strong> Removal of zinc and cadmium from wastewater.The process occurs through biosorption by Microactinium pusillum. Pediastrum sp<\/strong> \u2013 Indicators of organic compounds in wastewater. The process occurs through biosorption.<\/p>\n Read more from\u00a0Oilgae\u2019s Algae-Based Waste Water Treatment<\/a><\/strong>\u00a0\u2013 The one and only such report in the world \u00a0Oilgae has published a unique report to assist those keen on understanding the algae-based waste water treatment technology and those wanting to venture into this industry. The Oilgae\u2019s guide to waste water treatment is a comprehensive guide to understanding the algae-based waste water treatment, technolgies, challenges and the players that are involved in this industry.\u00a0Link<\/strong>\u00a0–http:\/\/www.oilgae.com\/ref\/report\/wastewater_treatment\/wastewater_treatment.html \u00a0<\/a><\/p>\n Read Related Blogs:<\/p>\n Algae Clean Waste Water to Produce Numerous Useful Products<\/a><\/p>\n Microalgae and Waste Water Treatment \u2013 Why Employ Algae to Clean Up Waste Water?<\/a><\/p>\n Similarities and Differences of Treating Municipal Waste Water and Industrial Waste Water Using Algae<\/a><\/p>\n Issues and Challenges Associated with Cleaning Waste Water Using Algae<\/a><\/p>\n
\nPithophora sp – It is used for the removal of the malachite green dye from wastewater.<\/p>\n
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