For removal of phosphorus (P) from swine liquid manure before land application, we developed a treatment process that produces low P effluents and a valuable P by-product with minimal chemical addition and ammonia losses. The new wastewater process included two sequential steps: (i) biological nitrification and (ii) increasing the pH of the nitrified wastewater to precipitate P. We hypothesized...

Abstract This study explains the added value of North Sumatra Langkat limestone and its derivative products. Limestone is classified as high calcium, characterized by calcium oxide (CaO) content 38.39% -55.84%, physical characteristics show dark gray color, dominant calcite, smooth, hard fossilized texture. So far, use in form chunks, especially a raw material for building which gives low to li...

Scale is widely observed in the hydrated lime mine drainage treatment plant of Daedeok South Korea. In order to understand environment terms formation scale minerals, and water were collected from AMD facility analyzed. addition, saturation index was calculated based on geochemical modeling predict minerals that could be produced facility, results then compared with an analysis onsite minerals....

The industrial production of lime generates greenhouse gases, which contributes to increase the global warming. Therefore, present study evaluated feasibility replacing by ornamental rock waste (ORW) as a by-product related stone industry, and developed cost-effective mortars. These new low-costing mortars are intended fresh fluid paste coatings be applied on walls mechanized projection techniq...

Low-iron, manganese-enriched (LIME) olivine grains are found in cometary samples returned by the Stardust mission from comet 81P ⁄Wild 2. Similar grains are found in primitive meteoritic clasts and unequilibrated meteorite matrix. LIME olivine is thermodynamically stable in a vapor of solar composition at high temperature at total pressures of a millibar to a microbar, but enrichment of solar c...

In order to study the application of lime-fly ash loess in permafrost subgrade engineering, uniaxial compressive test, fast direct shearing test and permeability tests were carried out on lime-fly ash loess under different curing ages and freeze-thaw cycles. Uniaxial compressive strength of lime-fly ash loess increases slowly with the curing ages, and can reach 3.5 Mpa after the curing ages of ...

If the anaesthetic circle system is arranged to increase the humidity of fresh anaesthetic gases by placing the carbon dioxide absorbent canister between the fresh gas inlet and the patient, drying of the soda-lime can occur. Very dry soda-lime adsorbs significant quantities of halothane. Using fresh soda-lime, effluent halothane concentration reached 50% of the input concentration in 35s, but ...

The River Yläneenjoki catchment in southwest Finland is an area with a high agricultural nutrient load. We report here on the nutrient removal performance of three on-site lime-sand filters (F1, F2, and F3), established within or on the edge of the buffer zones. The filters contain burnt lime (CaO) or spent lime [CaO, Ca(OH), and CaCO]. Easily soluble lime results in a high pH level (>11) and l...