Results 191 to 200 of about 5,317,742 (222)

HETEROTROPHIC SLIMES IN FLOWING WATERS

Biological Reviews, 1985
Summary1. While much attention has been paid to the ecology of macro‐invertebrates in flowing water, the microbial ecology of such systems has been largely ignored and our knowledge of heterotrophic slimes in particular remains far from complete. Slime‐forming organisms are ubiquitous in their distribution and are part of the normal riverine flora ...
openaire   +1 more source

Removal of iron ore slimes from a highly turbid water by DAF

Environmental Technology, 2018
This paper addresses Dissolved Air Flotation (DAF) process variables, such as the flocculation parameters and the recycle water addition, as well as the pretreatment chemical variables (coagulation conditions), to determine the optimal values for the flotation of iron ore slimes found in a highly turbid water sample from the Gualaxo do Norte River, a ...
L. M. Faustino, A.S. Braga, G.D. Sacchi, W. Whitaker, M.A.P. Reali, L.S. Leal Filho, L.A. Daniel   +6 more
openaire   +2 more sources

The use of water purification slimes for special cements

Construction and Architecture, 2014
The possibility to obtain sulphoaluminate additive (SAA) consisting of the necessary quantity of aluminium sulpfate and aluminium hydroxide using water purification slimes is shown. It was fixed that the admixture of crystallized (SAA) with cement provides cement paste reinforce and structure formation at the share of ettringite&
openaire   +1 more source

Regulation of Plasma-Activated Water on the Settling of Ultrafine Coal Slime

Colloids and Surfaces A: Physicochemical and Engineering Aspects
Yuexian Yu, Zhanglei Zhu, Ningning Zhang
exaly   +2 more sources

Determination of Elemental Composition of River Water and Slime by PIXE Method

IEEE Transactions on Nuclear Science, 1981
The application of PIXE method was developed for determination of concentration of different elements in river water and bottom slime. The internal standard technique was applied for quantitative evaluation of contents of different elements. In case of river water yttrium standard was used in form of yttrium nitrate solution.
S. Augustyniak, J. Baranek-Lenczowska, L. Jarczyk, E. Rokita, D. Slominska, A. Strzalkowski   +5 more
openaire   +1 more source

The Role of Surface Water and Light on Differentiation in the Cellular Slime Molds

Differentiation, 1982
A key environmental factor in inducing final fruiting body differentiation in the migrating slugs of cellular slime molds is loss of contact with a surface film of water. If the slug tip reaches above the water film, fruiting tends to occur, but if it stays in contact with the surface water, continued migration is favored.
J.T. BONNER, T.A. DAVIDOWSKI, W.-L. HSU, D.A. LAPEYROLERIE, H.L.B. SUTHERS   +4 more
openaire   +1 more source

Extended DLVO theory applied to coal slime-water suspensions

Journal of Central South University, 2012
Coal slimes are mainly composed of coal and clay particles. The interaction energies among these particles were calculated using extended DLVO (DERJAGUIN-LANDAU-VERWEY-OVERBEEK) theory and the aggregation mechanisms were analyzed based on the settling experiments for coal-kaolinite and coal-montmorillonite suspensions, respectively, under different ...
Ming-qing Zhang, Qi Liu, Jiong-tian Liu
openaire   +1 more source

Matrices for toxic slime utilization after the polluted water treatment

Journal of Water Chemistry and Technology, 2008
A new effective matrix type (glass-ceramic matrices) has been obtained for the toxic slime utilization after water purification. Optimal formulas and operating conditions were developed for molding the matrices proposed. The impact of different additives on physicochemical properties of model matrices was studied.
L. N. Puzyrnaya, A. P. Krivoruchko, E. V. Terlikovskii   +2 more
openaire   +1 more source

WATER REMOVAL FROM MINE SLIMES AND SLUDGE USING DIRECT CURRENT

Drying Technology, 1983
ABSTRACT Recent tests by the U.S. Bureau of Mines have demonstrated the effectiveness of electrokinetic dewatering to consolidate a variety of coal and mineral slimes. Material properties and application methods that affect performance are briefly reviewed, and some operating and proposed field installations are described.
D. J. Kelsh, R. H. Sprute
openaire   +1 more source

The Effect of a Microbiological Slime Layer on Stainless Steel in Natural Sea Water

CORROSION 1986, 1986
Abstract Different stainless steels such as 254 SMO, Sanicro 28 and SAF 2205 have been exposed to natural sea water. During the exposure the potential on freely exposed specimens and current density on cathodic polarized specimens were measured. Due to the formation of a microbiological slime on the surfaces, the potential rose to values
Roy Johnsen, Einar Bardal
openaire   +1 more source