Growth of blue-green algae in the Manukau (New Zealand) oxidation ponds—II. Experimental studies on algal interaction

1979 ◽  
Vol 13 (8) ◽  
pp. 717-723 ◽  
Author(s):  
W.F. Vincent ◽  
W.B. Silvester
Keyword(s):  
New Zealand ◽  
Green Algae ◽  
Experimental Studies ◽  
Blue Green Algae ◽  
Oxidation Ponds

THE VALUE OF ORGANOLEPTIC INDICATORS OF DRINKING WATER THE ROSTOV REGION, AS FACTORS OF THE EPIDEMIC SAFETY OF POPULATION HEALTH

2019 ◽  
pp. 24-34
Author(s):  
Timur Khetsuriani ◽  
Elena Chaplygina ◽  
Tatyana Zhukova ◽  
Elgudzha Khetsuriani
Keyword(s):  
Public Health ◽  
Drinking Water ◽  
Green Algae ◽  
Experimental Studies ◽  
Environmental Safety ◽  
Blue Green Algae ◽  
Rostov Region ◽  
Organoleptic Characteristics ◽  
Aesthetic Appearance ◽  
Mass Development

The article presents an overview of the mass development of cyanobacteria (blue-green algae) in the don river of the Rostov region, which leads to the phenomenon, received in the literature the name of harmful “flowering” of water. The harmfulness of the mass development of cyanobacteria is changes in organoleptic characteristics of drinking water, which lead to the production of a large number of dangerous to human health and animal toxins, to reduce water quality, violation of the aesthetic appearance of the reservoir, the loss of useful human properties of the aquatic ecosystem and are factors of epidemic safety of public health. Experimental studies of the properties of cyanobacteria and toxins produced by blue-green algae are pre-sented. The first studies were carried out at the pilot plant on the technology of purification of flowering don water to ensure environmental safety of drinking water and public health.

scholarly journals Assessment of qualitative indicators of drinking water and their influence on human health, as ecological safety factor of population

2019 ◽  
Vol 126 ◽  
pp. 00067
Author(s):  
V.L. Bondarenko ◽  
E.D. Khetsuriani ◽  
A.I. Ilyasov ◽  
E.A. Semenova
Keyword(s):  
Drinking Water ◽  
Green Algae ◽  
Experimental Studies ◽  
Environmental Safety ◽  
Urban Systems ◽  
Blue Green Algae ◽  
Organoleptic Characteristics ◽  
Drinking Water Purification ◽  
Safety Of Drinking Water

Based on the results of experimental studies of the cyanobacteria and toxins properties, produced byblue-green algae, was assessed the quality of drinking water according to organoleptic characteristics in the area of the Lower Don geosystem. Experimental data on the properties of cyanobacteria and toxinsproduced by blue-green algae are presented in this study. Based on the results of research at the pilotplant, the basics of drinking water purification technology in the water dipper from blue-green algae have been developed, which to some extent helps to increase the environmental safety of drinking water in urban systems and settlements.

Freeze-Fracture Replication in the Ultrastructure of Blue-Green Algae

1967 ◽  
Vol 25 ◽  
pp. 74-75
Author(s):  
L. V. Leak
Keyword(s):  
Cell Wall ◽  
Electron Microscope ◽  
Green Algae ◽  
Three Dimensional ◽  
Freeze Fracture ◽  
Electron Microscopic ◽  
Photosynthetic Membranes ◽  
Blue Green Algae ◽  
Cell Biol ◽  
Cellular Components

Electron microscopic observations of freeze-fracture replicas of Anabaena cells obtained by the procedures described by Bullivant and Ames (J. Cell Biol., 1966) indicate that the frozen cells are fractured in many different planes. This fracturing or cleaving along various planes allows one to gain a three dimensional relation of the cellular components as a result of such a manipulation. When replicas that are obtained by the freeze-fracture method are observed in the electron microscope, cross fractures of the cell wall and membranes that comprise the photosynthetic lamellae are apparent as demonstrated in Figures 1 & 2.A large portion of the Anabaena cell is composed of undulating layers of cytoplasm that are bounded by unit membranes that comprise the photosynthetic membranes. The adjoining layers of cytoplasm are closely apposed to each other to form the photosynthetic lamellae. Occassionally the adjacent layers of cytoplasm are separated by an interspace that may vary in widths of up to several 100 mu to form intralamellar vesicles.

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