1. Wastewater Ponds Secondary Biological Treatment

11. Go to this web page for more. http://stabilizationponds.sdsu.edu/

64. Algae Bacteria relationships

67. Purple Sulfur Bacteria Purple bacteria or purple photosynthetic bacteria are proteobacteria that are phototrophic, that is capable of producing energy through photosynthesis. [1] They are pigmented with bacteriochlorophyll a or b, together with various carotenoids. These give them colours ranging between purple, red, brown, and orange.proteobacteria phototrophicphotosynthesis [1]bacteriochlorophyllcarotenoids

68. Purple Sulfur and Non sulfur Bacteria Photosynthesis takes place at reaction centers on the cell membrane, which is folded into the cell to form sacs, tubes, or sheets, increasing the available surface area. cell membrane Like most other photosynthetic bacteria, purple bacteria do not produce oxygen, because the reducing agent (electron donor) involved in photosynthesis is not water. In some, called purple sulfur bacteria, it is either sulfide or elemental sulfur. The others, called purple non-sulfur bacteria (aka PNSB), typically use hydrogenoxygenreducing agentelectron donorpurple sulfur bacteriasulfidesulfur hydrogen Ref White Knight Patent and photovoltaic applications.

69. Sulfur Bacteria

73. Algae used in fuel production

74. Spirogyra

75. Bluegreen Cyanobacteria

77. Duck Weed Limna Minor

78. Limna With Spirodela

79. Limna (Duck Weed) with Azolla (Red Fern)

81. Methods of Controlling Algae Deprive the algae of light with dye colorant such as Aqua Marine Shadow. Available from Bioremediation Intenational contact person Nancy Vaitkevicius nancylongname@earthlink.net nancylongname@earthlink.net Bacteria such as Bacillus Subtilus - IOS-500 available from IWS Corporation, contact person Vic Harvey victorharvey@sbcglobal.net

82. More ways of Controlling Algae Nutrient control. Aeration. Algae eating fish, and filter feeding organisms. Don’t use copper or blue stone. It is toxic to fish.

83. Method of controlling Duckweed Limna Minor Physical Harvesting. Grazing animals.

86. Wastewater Pond Zones

87. Pond Zones

88. Zones

91. Intermittent Sand Filter