Results 201 to 210 of about 122,020 (253)

Acidification of Lactose in Wastewater

Journal of Environmental Engineering, 2001
Acidification of lactose in wastewater was conducted in four series of experiments in an upflow reactor to investigate individual effects of hydraulic retention time (HRT) (2–24 h), lactose concentration in wastewater (2–30 g COD/L), pH (4.0–6.5), and temperature (20°–60°C). Optimum acidification was found at pH 5.5 and 55°C.
Yu, HQ, Fang, HHP
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Carbon Emissions and Acidification

Science, 2008
Avoiding environmental damage from ocean acidification requires reductions in carbon dioxide emissions regardless of climate change.
Zeebe, R.E., Zachos, J.C., Caldeira, K., Tyrrell, T.   +3 more
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Urinary acidification in children

Clinica Chimica Acta, 1968
Abstract Eleven children with normal renal function between the ages of 4–14 and with body surface area between 0.60–1.43 m2 were subjected to a short-term test of urinary acidification. Urine specimens were collected 2 hourly before and after 8 h of the oral administration of ammonium chloride, 0.1 g/kg body weight.
I, Matsuda, T, Takeda, N, Shida
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Metals and Acidification: An Overview

Water, Air, & Soil Pollution, 1986
Both upland soils and lake sediments appear to retain atmospherically deposited trace metals (e.g. Pb) even under acid conditions. The abundant, local, mineralogically derived metals (e.g. Al and Mn) are exported from upland soils under acidic conditions, but are usually retained by lake sediments.
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Spatial aspects affecting acidification factors in European acidification modelling

Environmental Modelling & Software, 2009
Plain linear models have recently been used in methodologies to model fate and transport for assessing acidification in life cycle impact assessment (LCIA), or in support of air pollution abatement policies. These models originate from a statistical analysis of the relationship between inputs and outputs of physically-based models that reflect the ...
S, Bellekom, Hettelingh, JPrivm, Aben, Jrivm   +2 more
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Acidification of animal slurry– a review

Journal of Environmental Management, 2015
Ammonia emissions are a major problem associated with animal slurry management, and solutions to overcome this problem are required worldwide by farmers and stakeholders. An obvious way to minimize ammonia emissions from slurry is to decrease slurry pH by addition of acids or other substances.
Fangueiroa, David, Hjorth, Maibritt, Gioellic, Fabrizio   +2 more
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Acidification and polymerization of actin

Biochimica et Biophysica Acta, 1952
Abstract The production of H-ion when salt is added to actin solution appears to be the usual effect of salt upon a protein solution and not to be prerequisite for polymerization. The pH decreases immediately after the salt is added but polymerization, as judged by changes in viscosity, does not begin for one to three minutes.
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Soil Acidification and Alkalinization

1991
In this chapter I briefly discuss the nature of soil acidification and alkalinization, and define these processes in terms of changes in the relevant capacity factors. Next, the contribution of various sources of soil acidification and their quantitative importance is treated in some detail: (1) effects of addition of acids or bases by irrigation and ...
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Distal tubule acidification

Journal of Nephrology, 2006
Abstract: The distal tubule defines the final section of the renal tubule, and can be subdivided into four segments: distal tubule, connecting segment (which was previously considered part of the distal tubule), cortical collecting duct and medullary collecting tubule.
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