How to use leaching in a sentence

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Sentence Examples Scientists in Minnesota are looking at how ridge tillage affects pesticide leaching. The leaching of two pesticides through macropores in the unsaturated zone of a Danish alfisol was investigated in the laboratory. The heaps, known as windrows, bring down the temperature of the garbage and prevent leaching too, Ms. Patel says. Nitrogen applications are limited and consist primarily of slow-release products that have lower losses to leaching and volatilization. An effort was made to utilize a low cost adsorbent for retaining metal ions from leaching out into water resources. Many other homes in the city, however, have lead pipes, solder or leaded brass faucets which can also contribute to lead leaching. It is the hydrogen ion component that is toxic, affecting cell membranes, acidifying substrata, and leaching metals like calcium. Injection or incorporation into the soil, as in the case of nematicides, makes the pesticide most readily available for leaching. Some of the most common separation techniques are leaching, flotation, filtration, chromatography, and centrifugal force. Thus, prevention of nitrate leaching is an important step towards minimizing soil acidification. The manure alone could destroy the water table, rendering the groundwater toxic and leaching poisons into the soil for miles around. It cast its shadows, leaching the colour from the surrounding forestand turning the leaves and grasses odd shades of deep blues and dark greys. Most instances of groundwater contamination are due to leaching of herbicides from loading or disposal sites. Since potash is potassium chloride, applications to meet plant potassium needs could result in chloride leaching. A chemical separation method, leaching works mainly to isolate soluble materials from a solid mixture. These conditions raise the potential for nitrification, leaching, denitrification, or runoff losses. You remove the tannin by leaching it out of the ground-up acorn meal but are left with a fairly tasteless mush for making pancakes or the like. Nearby, there could be drums containing potassium, nickel, barium or a little bit of manganese leaching into the pretty stream. All products have the potential to contaminate ground and surface water if used improperly through leaching, runoff and off-target application. These additives were added either to enhance the hardness of the grout mixture or increase the resistibility to leaching. Show More Sentences The chief sources of phosphorus in river water are the weathering of rocks and the leaching out of fertilizers from agricultural land. Although less common than metal mines, coal wastes and workings can be a potential source of metal and metalloid leaching and acidic drainage. Marlin will yield approximately 217,000 ounces of gold per year, extracted through cyanide-vat leaching. Early-stage hydrothermal leaching of the limestone created solution cavities and brecciated zones along the fissures and faults, providing sites for subsequent ore deposition. Johannesburg's two rivers are also considered unsafe, primarily because of untreated human waste and chemicals leaching from piles of mining dross. Nutrient leaching, the washing away of topsoil and water logging from increased rainfall will affect plant development, plant growth and yield. Water quality may be affected by acid rock drainage or metal leaching from piles and the pit walls, or blasting residue, such as ammonia. Soil tillage and nitrogen fertilization not only cause soil erosion and nitrate leaching, they abet in the creation of nitrous oxide. Depletion of soil fertility may occur as a result of crop removal, erosion, leaching, and volatilization, or evaporation, of nutrients. They linger on and on, blowing in the wind, leaching into groundwater, moving up through ecological food chains. A conventional septic system is generally made up of a septic tank and a leaching bed constructed in the soil. There are additional concerns that the chemicals may be leaching into the ground and contaminating the local food supply. Typically, the addition of lead nitrate and oxygen improved gold leaching kinetics and overall gold extraction. I submit that a regular program of interaction would go miles in leaching partisan poison from the well in Washington. The Committee noted that it is possible that lysimeter studies demonstrate lack of leaching for one or more use scenarios but none were reported. Hydrometallurgy and electrometallurgy including leaching, solution purification, solvent extraction, metal winning and refining. Nutrient losses during storage and use by volatilisation and leaching are to be minimised. There is little risk of triclopyr reaching groundwater, and it poses no significant environmental hazard due to leaching. Sodium sulfide solutions are effective leaching agents for the concentration of stibnite from ores. The residue from rhodium sulfate leaching is fused with alkali nitrate salts to convert ruthenium to soluble sodium ruthenate. Show More Sentences Typical beneficiation processes include crushing, roasting, magnetic separation, flotation, and leaching. Bands of intermediately graded material must be inserted to prevent the finely graded material from leaching through the coarse zones. This entails less leaching from the leaves and thus less dispersion of the nutrients which they contain and less need for fungicidal treatment. An important side note is a certain amount of leaching goes on in a plastic water bottles over time. Blanching can also lead to leaching of vitamin C and minerals from potatoes. This layer of sintered glass is securely attached to the lip of the ring and eliminates the appearance of hygroscopic leaching. The residue left over from leaching the original mineral concentrate contains rhodium, iridium, ruthenium, and osmium. Oil shale use also causes leaching from toxic ash dumps and contamination of agricultural land. The ground should not be left bare for any length of time because this will encourage soil erosion and the loss of nutrient by leaching. With the commissioning of its pressure leaching process for zinc in 1993, significant reductions in mercury emissions were achieved. After leaching, the ore is kept in a storage area located some 100 metres from the plant. Heap leaching separates gold by dissolving it with a dilute cyanide solution. The dock will be constructed of untreated materials, to avoid leaching of hazardous chemicals. Chemical pollution in the Western United States is primarily caused by the leaching of mill tailings and refuse piles associated with various mining activities, including subsurface mining. In addition, low quality coals can have a very high ash content which results in problems of residual ash disposal and associated heavy metal leaching. It will stop rain leaching nutrients from the soil over the winter, and as it rots down it will improve the soil's texture and fertility quite naturally. Greater volatile loss was due to more manure applied to grassland, whereas leaching loss decreased with the elimination of manure applied to fallow corn land. On April 1st it will introduce a new fertiliser policy, which should add more nutrients to the soil while leaching fewer resources from the public coffers. We have devised a project regarding the leaching, bioleaching, and production of copper sulfate solution from this dust. Clean with mineral spirits instead of highly acidic detergents to decrease the opportunity for cobalt leaching. Show More Sentences Column leaching studies can be with unaged or aged soil, or both. The column leaching of non-persistent parent compounds is best addressed with unaged soil, while aged soil is more appropriate for transformation products. Red cell components, however, are stored at one degree to six degrees for up to 42 days, and these conditions do permit substantial leaching to occur. For example, the department is developing improved science and technology for the safe and effective stabilization, disposal and revegetation of mine sludge to minimize and prevent metal leaching and mobilization. On September 17 Panama became the 25th country to ratify the global ban on using organotin-based antifouling paints on ships without the application of a barrier coat to prevent them from leaching. Due to impeded drainage, the denitrification potential of the majority of soils in Northern Ireland is relatively high, reducing the nitrate concentration in soil and, therefore, the amount of nitrate susceptible to leaching. Bacteria and fungi — microbiology's classic enemies — constantly fight over the rhizosphere, the enriched underground environment created by nutrients leaching from the roots of plants into the surrounding soil. High hygroscopicity of ash stone increases mobility and leaching of ash components like alkaline metals and lime, which cause high alkalinity. Because the reclamation of sodic soils involves not only leaching out the soluble salts but also replacing exchangeable sodium with calcium and improving the physical properties of the soils. This reagent is produced by heating the ore with soda ash and then leaching out soluble chromate, which is then converted to the dichromate by treatment with sulfuric acid. His research has shown that natural organic matter found in soil can prevent carbamazepine from leaching beyond the root zone. In the naturally well-drained places, acid soil leaching can lead to podzolisation, that is a phenomenon in which humic acids migrate downward and leave a mineral amorphous layer in surface. The ores comprising blue and red hematite with goethite and limonite were formed by the leaching of the gangue minerals such as chert, silicates and carbonates. The decrease of their concentrations in the sorptive complex due to excessive leaching seems to be a negative effect. Prisoners choosing to carry out community work in order to reduce their sentence build hillside terraces which decrease the loss of soil fertility by leaching and increase the cultivable area. However, those decades of faster calcium leaching due to acid rain have depleted the natural stock of calcium found in the soil of land in lake drainage basins. Residues generated during the leaching process may be landfilled or stored in a secure site, stabilized to immobilize the metals, or sent to another process for recovery of remaining metals of value. For example, to sufficiently stop leaching by water with cement treated material can sometimes require that a double or even triple amount of cement has to be applied. Overburden and granular materials should be tested for acid rock drainage or metal leaching potential and, if found, these areas should be avoided. This was achieved by bulk heap leaching at the Peak Hill mine in western New South Wales, near Dubbo, Australia. Show More Sentences These chemicals are seeping into our soil, leaching into the water we drink, being absorbed by our homes, harming our bodies and claiming the lives of our children. In sectors where the riparian strip was of lower quality, water turbidity was found to increase, probably because bank erosion and soil leaching exceeded the system's adaptive capacity. The effects of soil leaching can extend into aquatic habitats. Nitrogen leaching occurs when soil is saturated, a usual condition in traditional flooded paddy fields. The presence of metal sulphides requires significant amounts of cyanide in the leaching process, resulting in yields that were still less than optimal. A carefully timed and judicious application of conventional pesticides reduces chemical use, which in turn decreases polluted runoff and leaching, so improving water quality. To desalinize soils, leaching of soluble salts from soil profiles was carried out. All applications of manure should be composted before application to prevent a potentially large release of nitrogen into ground water through leaching. The use of a cold mix emulsion binder to encapsulate the tar based materials negating the potential for degradation at elevated temperatures while effectively tackling the leaching issues of the future is a growing market. The burials were designed to test how well the glassified wastes would retain the incorporated fission products if exposed to leaching in a natural groundwater environment. This concern was alleviated by the appearance of similar concentrations outside the system, establishing connectivity, and a laboratory briquette leaching experiment which yielded similarly high concentrations. The San Francisco Bay Ohlones shared the same technique of tannin leaching as employed by all the other balanophagous Californians. Mining may not be necessary if the ore body and physical environment are conducive to leaching. The sulfur dioxide is used for the production of sulfuric acid, which is necessary for the leaching process. Peat often stains the water yellow or brown due to the leaching of tannins. This can be done by improving sewage treatment and by reducing the amount of fertilizers leaching into the rivers. These solvents, usually acidic, migrate through the weathering rock after leaching through upper weathered layers. To optimize the leaching of soluble material, the lixiviation is done in cascaded stages. Potash was principally obtained by leaching the ashes of land and sea plants. Using the aforenamed technique, we can get the leaching rate of impurities at different calcination temperatures, as shown in Fig. Show More Sentences Breakouts are often indicated by wet spots or ponding or grey or black liquids or black soil areas in the area of the leaching field or nearby ditches. Soil samples were taken randomly from the plots in 0-15 cm depths. No quantitative information on losses of beta-HCH by volatilisation or leaching during the experiment is available in the citied study. Comparing two methods of leaching the salty and alkalinized soils located in Roodasht, Isfahan. The coupling action of calcium leaching and chloride attack is an important durability problem for the cement-based materials served in long-termly in the environmental water like seawater or groundwater containing chloride. Runoff and leaching of the manure from intensive hog production can also have deleterious effects on surface water and ground water due to the high organic content. Childhoods are wasted in mind-numbing subsistence-level labor that produces minimal economic value, while leaching away the creativity and potential of future workers. The demonstration facilities will enable property owners and other stakeholders to observe the advantages of structures that reduce the risk of leaching and erosion during heavy rainfall and spring thaws. There is a theoretical possibility that the leaching of, for example cadmium, may increase due to increased chloride complexation caused by PVC incineration but data would be needed to substantiate this. Among other things, unsatisfactory irrigation methods are responsible for irreparable salinity and excessive leaching, leading to a growing barrenness of soils. Think: In-situ leaching But with leeches, louses, Lampreys. Unfortunately, the most popular and effective leaching agent used to process the noble metal is cyanide, one of the world's most toxic substances. The ultrasonic treatment leads to the leaching of high-density materials from oil shale, which makes its structure incompact and density-depressing. Acorns are also edible to humans, after leaching of the tannins. The diagenetic processes that have affected the Arab-D reservoir include dolomitization, leaching and recrystallization, cementation, compaction and fracturing. Methods are applicable to determine the leaching behaviour of inorganic constituents from waste, produced eluate can be characterized physically and chemically. The sulfuric acid is regenerated and recycled to the leaching step. The high tenor and speed of the uranium extraction suggest the Theseus mineralisation consists predominantly of uraninite and coffinite and is readily available for leaching. This process, called leaching, increases pore space in the rock. Direct and indirect mechanisms in the bacterial leaching of covellite. Furthermore, fertilizers are lost by evaporation or leaching. Examples from Classical Literature When possible a cover crop should be put on fall plowed land where there is likely to be loss of plant food by leaching. There is no waste from leaching, as when the manure lies exposed to the weather. This leaching process concentrates these minerals as ore that can be mined. Water undermines by washing away the softer parts and by leaching. A good illustration of leaching is found in the manufacture of potash. It in part prevents the leaching out of the soluble parts of the ash. Water may be lost from the soil by leaching through the lower soil. There will be some loss of nitrogen through leaching and denitrification. Heng LK, White RE A simple analytical transfer function approach to modelling the leaching of reactive solutes through field soil. Why isn't the Director of Public Prosecutions issuing thundering denouncements of the real thieves leaching the country dry? This may be residues from roasting and leaching pyrites for vitriol, etc. Management-induced changes in SOM could therefore have a significant effect on the retention and leaching of cations. One cause that appears obvious and easy of acceptance is leaching. Concrete has unique properties that can cause paint to deteriorate, including efflorescence, a leaching of minerals from inside the concrete to the. Find more words! 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Words that rhyme with leaching What is the plural of leaching? What is the adjective for leaching? What is the noun for leaching? Use our Sentence Generator Nearby Words leaches leached leachate leachable leachability Leach leachy Leacock lead lead by example leaded leaden 8-letter Words Starting With l le lea leac leach leachi leachin