Results 151 to 160 of about 126,189 (322)

Mechanisms of carbon and nutrient release from acid impacted soils: Investigating competitive sorption and aggregate dispersion [PDF]

, 2018
Dissolved organic carbon (DOC) and associated nutrients are of critical importance to natural biogeochemical cycling. In recent decades, increased amounts of DOC have been observed in Northern Hemisphere surface waters recovering from acid deposition ...
Shavitz, Aaron M
core   +1 more source

Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior

steel research international, EarlyView.
This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini, Davide Mombelli, Giovanni Dotelli, Mario Grosso, Carlo Mapelli   +4 more
wiley   +1 more source

Genetic and systemic disruption by a municipal solid waste leachate in aquatic and terrestrial models, and human cancer risk assessment of the leachate’s metallic constituents

Discover Toxicology
Solid waste leachate can contaminate soil, surface, and ground waters, posing public and environmental health risks. This study intends to determine cytogenotoxicity of leachate (1–50%, v/v, leachate/tap water) from Lapite waste dumpsite in Ibadan ...
Adekunle A. Bakare, Koleola Babatolu Balogun, Muyiwa Ademola Ogunbona, Emmanuel Chigozirim Onyia, Motunrayo M. Coker, Khesa M. Pitso, Omonike C. Bakare, Liteboho D. Maduna, Olukunle S. Fagbenro, Sibusisiwe Magama, Matsepo M. Taole, Abiodun O. Adeniji, Moeketsi S. Phalatsi, Adeyinka M. Gbadebo, Peter Chatanga, Okunola A. Alabi   +15 more
doaj   +1 more source

Enhancing the vase life of cut roses through spectral optimisation during greenhouse cultivation

Annals of Applied Biology, EarlyView.
Here, we examined three red‐to‐blue (R:B) light emitting diode (LED) ratios (90:10, 80:20 and 70:30) in two cut rose cultivars. All treatments enhanced photosynthesis, with 90:10 showing the strongest effects—raising chlorophyll, carotenoids, anthocyanins and carbohydrate levels, and extending vase life by up to 30%.
Maryam Davarzani, Sasan Aliniaeifard, Mahboobeh Zare Mehrjerdi, Mahmoud Reza Roozban, Seyyed Arash Saeedi, Dimitrios Fanourakis, Nazim S. Gruda   +6 more
wiley   +1 more source

FARM-LEVEL EVALUATION OF ALTERNATIVE POLICY APPROACHES TO REDUCE NITRATE LEACHING FROM MIDWEST AGRICULTURE [PDF]

Policies to reduce nitrate leaching are evaluated using a mixed integer linear programming model of a representative Michigan cash grain farm. At spring 1993 prices, elimination of the current deficiency payment program is found to be more efficient at ...
Clark, David S., Swinton, Scott M.
core   +1 more source

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

Archaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay, Peter M. J. Douglas, Christina T. Halperin, Yves Gélinas   +3 more
wiley   +1 more source

MARGINAL ABATEMENT COSTS OF REDUCING GROUNDWATER-N POLLUTION WITH INTENSIVE AND EXTENSIVE FARM MANAGEMENT CHOICES [PDF]

Cost-effectiveness is an important consideration in evaluating choices for meeting environmental quality objectives. Estimated crop yield response functions and the associated groundwater-nitrate pollution production functions were used to evaluate the ...
Weersink, Alfons, Yiridoe, Emmanuel K.
core   +1 more source

The Plural Lives of E‐Waste: Valuation and Contestation in Accra's Recycling Network(s)

The Geographical Journal, EarlyView.
Short Abstract Electronic waste (e‐waste) in Accra is shown to be plural and ontologically multiple, enacted as livelihood, commodity, hazard, governance object and political actor across dispersed recycling networks. Using a multi‐sited, follow‐the‐thing approach and 60 interviews, I specify four socio‐material mechanisms (i.e., copper's market tempo,
Ebenezer Gyampoh Amoah
wiley   +1 more source

Neglected flow direction detection in landfill water cycle: Precise characterization of leachate distribution through joint inversion of electrical resistivity and self-potential data

Water Cycle
The leakage of leachate is a crucial but often overlooked hydrological process in the landfill water cycle. The concealed leakage of leachate not only leads to soil and groundwater pollution in surrounding areas but also affects the distribution of water
Xiaochen Sun, Xu Qian, Ya Xu, Changxin Nai, Yuqiang Liu   +4 more
doaj   +1 more source

Contributions to predicting contaminant leaching from secondary materials used in roads [PDF]

, 2004
Slags, coal ashes, and other secondary materials can be used in road construction. Both traditional and secondary materials used in roads may contain contaminants that may leach and pollute the groundwater.
Apul, Defne S
core   +2 more sources