A method for impeding the sedimentation of clays in water by adding a water-soluble compound. This compound is constituted by a polymer bearer of hydroxamic groups attached to a linear hydrocarbon chain. The amount of this adjuvant is small on the order of a few milligrams.
A method for impeding the sedimentation of clays in water by adding a water-soluble compound. This compound is constituted by a polymer bearer of hydroxamic groups attached to a linear hydrocarbon chain. The amount of this adjuvant is small on the order of a few milligrams.n [US4480067A] Google Patents 2 Full Text Espacenet
lation, sedimentation of clay and silt. 19 Dispersion of clay particles in soil suspensions is essential for (1) particle-size determination by mechani cal analysis to evaluate the soil texture (Gee and Bauder 1986), and (2) separation of the clay fractions from soils in order to characterize the clays and to identify and
Sedimentation of clay in natural medium takes long times and settling time decreases with decreasing initial pulp density, while application of ultrasonic treatment gave better results than the ones in natural medium in all pulp densities. Remarkable increases are observed in the settling times with the flocculant addition in either natural or ...
Biscaye PE (1965) Mineralogy and sedimentation of recent deep-sea clay in the Atlantic Ocean and adjacent seas and oceans. Geol Soc Am Bull 76: 803–831 Google Scholar. Biscaye PE, Eittreim SL (1977) Suspended particulate loads and transports in the nepheloid layer of the abyssal Atlantic ocean.
some of the remaining clays. 4: It can be run through a spray drier which evaporates the liquid and allows the clay to be collected. 6.6 Preparation of Oriented Mounts 6.6.1 Suspend a clay mineral fraction in a small amount (approximately 10 to 20 ml) of deionized vater contained in a …
Typical clay bodies are built with three main ingredients: clay, feldspar, and silica. Depending on the firing temperature, the ratios between plastic materials (clays) and the non-plastic materials (feldspar, silica) change to produce bodies of excellent workability (1), …
The Congo Fan sites (1075, 1076, and 1077) feature hemipelagic muds, typically classified as greenish gray and olive-gray diatomaceous clay, which is nannofossil bearing in places. Carbonate contents are low, especially in sediments older than 1 Ma. Sedimentation rates are close to 100 m/m.y. and typically vary by a factor of 2 around that value.
New Window. A method for impeding the sedimentation of clays in water by adding a water-soluble compound. This compound is constituted by a polymer bearer of hydroxamic groups attached to a linear hydrocarbon chain. The amount of this adjuvant is small on the order of a few milligrams.n [US4480067A] Google Patents.
Abstract. Of all the various types of sediment, fine-grained sediments with a high proportion of clay minerals are by far the most abundant. In the marine environment, terrigenous (land-derived) muds cover about 60% of the continental shelves, and almost 40% of the deep ocean basins, amounting in total to about a third of the Earth's surface (Fig. 4.1).
plant roots in the soil serve 2 functions. help decompose detritus and form clays through chemical erosion and the bind the soil impeding erosion. sedimentary rocks are less susceptible to____than igneous and metamorphic rocks. chemical …
the larger clay particles. Most viruses and bacteria and fine clay particles are too small to be settled out by simple gravity sedimentation. Therefore, microbial reductions by plain sedimentation or gravity settling are often low and inconsistent. Overall reductions of viruses and bacteria by sedimentation rarely exceed 90%, but
natural clays followed by their shear strength properties. The corresponding properties of some overconsolidated natural clays are then con- sidered. SEDIMENTATION COMPRESSION OF NATURAL CLAYS In 1970 Skempton published an important paper on the consolidation of natural clays by gravitational compaction.
Sedimentation 1 Sedimentation . Sedimentation, or clarification, is the processes of letting suspended material settle by gravity. Suspended material may be particles, such as clay or silts, originally present in the source water. Suspended material or floc is typically created from materials in the water and chemicals used in
commercially available sieves is about 40 µm, the sizes of clay and small silt particles cannot be determined by sieving, and sedimentation techniques are used instead. The sedimentation rate of the particles is measured and their diameter calculated from the semi-empirical equation known as Stokes' Law.
In this paper, the sedimentation of clayey slurry is studied using Kynch's theory. This theory is attractive as the only property needed, the permeability, can be determined from the surface settlement curve.
Sedimentation without the aid of a deflocculating agent gives valuable information as to the condition of the clay. Flocculated clays behave like jellies and the method of particle analysis cannot be applied in this case.
Additionally, if a centrifuge is not available, sedimentation tables are available in the following reference, and can sometime be more practical than the centrifugation method (albeit longer sedimentation times): Soukup, D. A., Buck, B. J., and Harris, W. (2008). Preparing Soils for Mineralogical Analyses.