Results 161 to 170 of about 1,452 (215)

Accumulation of Heavy Metals in the Earthworm Eisenia foetida

Journal of Environmental Quality, 1980
AbstractConversion of waste‐activated sludge into egesta by the earthworm Eisenia foetida resulted in neither an increase nor decrease of 0.1N HCl‐extractable cadmium, copper, nickel, lead, or zinc. The addition of 2,500 ppm copper as copper sulfate to activated sludge caused 100% mortality within 1 week, though feeding upon nonamended activated ...
R. Hartenstein, E. F. Neuhauser, J. Collier   +2 more
openaire   +1 more source

Reduction of clog matter in constructed wetlands by metabolism of Eisenia foetida: Process and modeling.

Environmental Pollution, 2018
Introducing of earthworms to constructed wetlands (CWs) has been considered as a new approach to solve the clogging problems in the long-established systems.
Jianfeng Ye, Zuxin Xu, Hao Chen, Liang Wang, G. Benoit   +4 more
semanticscholar   +1 more source

Physicochemical requirements in the environment of the earthworm Eisenia foetida

Soil Biology and Biochemistry, 1980
Survival and/or growth were used to assess optimum and potentially deleterious physico-chemical conditions in the environment of the earthworm Eisenia foetida. Maximum weight was gained between 20 and 29°C with horse manure or activated sludge as food. Maximum weight gain as a function of moisture in activated sludge occurred between 70 and 85%.
David L. Kaplan, Roy Hartenstein, Edward F. Neuhauser, Michael R. Malecki   +3 more
openaire   +1 more source

Reproduction Efficiency of Eisenia foetida and Substrate Changes During Vermicomposting of Organic Materials

Compost Science & Utilization, 2018
Vermicomposting is the processing of organic substrates through digestion by worms, usually Eisenia foetida. The physico-chemical characteristics of the substrates and health of the worms are important parameter for effective vermicomposting.
A. Biabani, L. Carpenter‐Boggs, A. Gholizadeh, M. Vafaie-Tabar, Mohammad Osman Omara   +4 more
semanticscholar   +1 more source

Growth of the earthworm Eisenia foetida on microorganisms and cellulose

Soil Biology and Biochemistry, 1984
Abstract The growth of Eisenia foetida (Savigny) (200–300 mg live weight) was measured on mixtures of inorganic salts, vitamins, and cellulose upon a base of ashed loam or sand. High concentrations of inorganic salts, exceeding an ionic conductivity of about 8mS cm −1 were detrimental, and lower concentrations failed to promote growth. Hatchlings
Frank M. Flack, Roy Hartenstein
openaire   +1 more source

Iodination activity in Eisenia foetida (Annelida, Oligochaeta)

Cell and Tissue Research, 1991
In the nervous system of the earthworm Eisenia foetida, we have previously found thyroglobulin-like immunoreactive neurons. In the present study iodination activity was investigated by injecting worms or incubating them in vivo with radioiodine; animals treated with methimazole (MMI), an inhibitor of peroxidase-catalyzed iodination, served as controls.
C Davoli, A Marcheggiano, G Ravagnan, M Minù, A Serafino, C Iannoni   +5 more
openaire   +3 more sources

Production and characterization of PHB‐HV copolymer by Bacillus thuringiensis isolated from Eisenia foetida

Biotechnology and applied biochemistry, 2019
Polyhydroxyalkanoates (PHAs) are one of the most important biopolyesters produced by vast number of microorganisms that exist in the environment. PHAs gained much attention due to its inherent biodegradable and biocompatible ability along with its ...
Suguna Ponnusamy, Saranya Viswanathan, Abirami Periyasamy, Shenbagarathai Rajaiah   +3 more
semanticscholar   +1 more source

Recycling of spent mushroom compost using earthworms Eisenia foetida and Eisenia andrei

The Environmentalist, 2008
A 90-day study conducted to explore the potential of epigeic earthworms Eisenia foetida and Eisenia andrei to transform the different types of agricultural wastes and spent mushroom compost into value-added product, i.e., vermicompost. Vermicomposting resulted in significant reduction in C:N ratio, pH, electrical conductivity, total organic carbon, TK;
J. Tajbakhsh, M. A. Abdoli, E. Mohammadi Goltapeh, I. Alahdadi, M. J. Malakouti   +4 more
openaire   +1 more source

[Lipid and fatty acid composition of Eisenia foetida].

Ukrainskii biokhimicheskii zhurnal (1978), 1991
It is found out that the content of lipids in the biomass of the studied populations of Eisenia foetida is rather high: 2.5-5.2% of the wet mass. The content of phospholipids is 40-55%, C27-sterols--1.5-3.4% of the mass of coarse extracts of lipids. Lipids of tissues contain also 47-54% of saturated (C10-C24) fatty acids as well as to 23% of monoene ...
Iu D, Kholodova, V N, Mironova, M F, Povkhan, N M, Golodniĭ, A G, Berdyshev, N V, Bulevskiĭ, I A, Mel'nik   +6 more
openaire   +1 more source

Anoplophrya foetidae n. sp. an astomatous ciliate from Eisenia foetida var. foetida (Savigny, 1826)

Archiv für Protistenkunde, 1990
Summary A ciliate of the genus Anoplophrya Stein 1860 is described. This ciliate was found in the middle part of the gut of the earthworm Eisenia foetida var. foetida ( Savigny , 1826), and it has been studied in living conditions and under impregnation using the pyridinated silver method of Fernandez-Galiano (1976).
D. Fernández-Galiano, M.B. Pérez-Uz
openaire   +1 more source