sequestration

Sequestration’s head pops up, for a peek at continuing budget uncertainty

CBO advised Congress that unless full-year appropriations for 2024 is enacted by April 30, the White House might be obligated to initiate sequestration.

The post Sequestration’s head pops up, for a peek at continuing budget uncertainty first appeared on Federal News Network.




sequestration

Sequestration Has Less Impact on FDA? Just Not True

“The Hill” newspaper recently reported that: “a survey of federal budgets devoted to developing and enforcing regulations found that many agencies will spend more in 2013 and 2014 than in previous years, indicating that the writing and enforcing of new regulations is largely unimpeded by the massive cuts, known as sequestration.” That certainly sounds authoritative…until you look at the analysis. In fact, the report’s authors appear to know nothing about the federal budget and have used inherently unreliable data in calculating FY 13 and FY 14 spending levels. One can only hope that the authors—allegedly academic experts--know more about regulatory policy than they do about federal budgets.




sequestration

Thermally modified nanocrystalline snail shell adsorbent for methylene blue sequestration: equilibrium, kinetic, thermodynamic, artificial intelligence, and DFT studies

RSC Adv., 2024, 14,12703-12719
DOI: 10.1039/D4RA01074D, Paper
Open Access
Abisoye Abidemi Adaramaja, Abayomi Bamisaye, Shakirudeen Modupe Abati, Kayode Adesina Adegoke, Morenike Oluwabunmi Adesina, Ayodeji Rapheal Ige, Oluwatobi Adeleke, Mopelola Abidemi Idowu, Abel Kolawole Oyebamiji, Olugbenga Solomon Bello
The quest for an efficient and sustainable adsorbent material that can effectively remove harmful and hazardous dyes from industrial effluent has become more intense. Thermally modified nanocrystalline snail shell is a new biosorbent for removing methylene blue dye from contaminated wastewater.
The content of this RSS Feed (c) The Royal Society of Chemistry




sequestration

Clean facts about carbon sequestration

Sequestration reduces global warming and helps mitigate climate change.




sequestration

Techno-economic insights and deployment prospects of permanent carbon dioxide sequestration in solid carbonates

Energy Environ. Sci., 2024, 17,8756-8775
DOI: 10.1039/D4EE03166K, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Andreas Mühlbauer, Dominik Keiner, Christian Breyer
While a rapid defossilisation of the energy system is the highest priority, additional post-fossil CDR for net-negative emissions will be necessary. Routes for mineralisation (in situ-, ex situ mineralisation, enhanced rock weathering) are examined.
The content of this RSS Feed (c) The Royal Society of Chemistry




sequestration

Greater focus needed on carbon sequestration in the world’s soil

The world’s soils have the potential to store about 3000 megatonnes of carbon per year by the end of the 21st century, according to a new study. It suggests that restoring carbon to cropland and peat soils through practices such as afforestation and no-till farming could help solve global problems of food insecurity and climate change.




sequestration

New cost estimates for carbon sequestration through afforestation in the United States

This report provides new cost estimates for carbon sequestration through afforestation in the United States. We extend existing studies of carbon sequestration costs in several important ways, while ensuring the transparency of our approach. We clearly identify all components of our cost estimates so that other researchers can reconstruct our results as well as use our data for other purposes. Our cost estimates have five distinguishing features: (1) we estimate costs for each county in the contiguous United States; (2) we include afforestation of rangeland, in addition to cropland and pasture; (3) our opportunity cost estimates account for capitalized returns to future development (including associated option values) in addition to returns to agricultural production; (4) we develop a new set of forest establishment costs for each county; and (5) we incorporate data on Holdridge life zones to limit afforestation in locations where temperature and moisture availability prohibit forest growth. We find that at a carbon price of $50/ton, approximately 200 million tons of carbon would be sequestered annually through afforestation. At a price of $100/ton, an additional 100 million tons of carbon would be sequestered each year. Our estimates closely match those in earlier econometric studies for relatively low carbon prices, but diverge at higher carbon prices. Accounting for climatic constraints on forest expansion has important effects on cost estimates.




sequestration

Greenhouse gas emissions versus forest sequestration in temperate rain forests—a southeast Alaska analysis

Sitka, Alaska, has substantial hydroelectric resources, limited driving distances, and a conservation-minded community, all suggesting strong opportunities for achieving a low community carbon footprint.




sequestration

Synthesis of sequestration resins for water treatment in light water reactors

An organic synthesis of materials to achieve removal of low molecular weight ionic species, such as transition metal ions including cobalt, iron, nickel, and zinc, from aqueous solutions. The synthesis includes the steps of providing a cation exchange resin, functionalizing the cation exchange resin using a chloride intermediate to form a sulfonyl chloride resin, and reacting a multi-amine based ligand with the sulfonyl chloride resin to form a sequestration resin. The synthesis further includes the steps of cooling the sequestration resin, and washing and drying the sequestration resin.




sequestration

Method and composition for sequestration of arsenic

A method for sequestrating arsenic oxides, comprising forming an insoluble and stable glass incorporating a fully oxidized form of arsenic generated by oxidation of an initial lower oxide of arsenic and stabilization by calcium salt formation. The glass composition for sequestration of arsenic comprises from 50 to 75% silica; from 0.5 to 3% Al2O3; from 1 to 15% MnO; from 5 to 15% CaO; from 1 to 20% As2O5 and from 8 to 14% Na2O, less than four percent of iron oxides, magnesium oxide and other oxides.




sequestration

System and method for carbon dioxide capture and sequestration from relatively high concentration CO2 mixtures

A system and method of reducing the net carbon dioxide footprint of an industrial process that generates power from the combustion of hydrocarbon fuels in which ambient air is admixed with up to 50% by volume of an effluent gas from the power generator of the industrial process, in order to substantially increase the CO2 concentration in the air prior to treatment. The treatment comprises adsorbing CO2 from the admixed ambient air utilizing a cooled, porous substrate-supported amine adsorbent, wherein the porous substrate initially contacts the mixed ambient air containing condensed water in its pores, which act as an intrinsic coolant with respect to the exothermic heat generated by the adsorption process. In addition, prior to regenerating the supported adsorbent, air pressure is substantially reduced in the sealed regeneration chamber and the low pressure chamber is placed in fluid connection with a higher pressure regeneration chamber containing steam and carbon dioxide, to preheat the sorbent to be regenerated and to quickly cool the regenerated sorbent prior to use for further CO2 adsorption.




sequestration

Ion Sequestration for Scale Prevention

Cations that can precipitate from an aqueous composition to produce scaling are sequestered by adding a multi-dentate ligand to the aqueous composition. The multi-dentate ligand bonds with the cation to form a non-scaling ionic complex; and the aqueous solution with the ionic complex is used in a process that produces substantially pure water from the aqueous composition, where the cation, absent formation of the ionic complex, is subject to scaling. The pH of the aqueous composition (or a brine including components of the aqueous composition) is then reduced to release the cation from the multi-dentate ligand; and the multi-dentate ligand, after the cation is released, is then reused in a predominantly closed loop.




sequestration

Metabolite Sequestration Enables Rapid Recovery from Fatty Acid Depletion in Escherichia coli

ABSTRACT

Microbes adapt their metabolism to take advantage of nutrients in their environment. Such adaptations control specific metabolic pathways to match energetic demands with nutrient availability. Upon depletion of nutrients, rapid pathway recovery is key to release cellular resources required for survival under the new nutritional conditions. Yet, little is known about the regulatory strategies that microbes employ to accelerate pathway recovery in response to nutrient depletion. Using the fatty acid catabolic pathway in Escherichia coli, here, we show that fast recovery can be achieved by rapid release of a transcriptional regulator from a metabolite-sequestered complex. With a combination of mathematical modeling and experiments, we show that recovery dynamics depend critically on the rate of metabolite consumption and the exposure time to nutrients. We constructed strains with rewired transcriptional regulatory architectures that highlight the metabolic benefits of negative autoregulation over constitutive and positive autoregulation. Our results have wide-ranging implications for our understanding of metabolic adaptations, as well as for guiding the design of gene circuitry for synthetic biology and metabolic engineering.

IMPORTANCE Rapid metabolic recovery during nutrient shift is critical to microbial survival, cell fitness, and competition among microbiota, yet little is known about the regulatory mechanisms of rapid metabolic recovery. This work demonstrates a previously unknown mechanism where rapid release of a transcriptional regulator from a metabolite-sequestered complex enables fast recovery to nutrient depletion. The work identified key regulatory architectures and parameters that control the speed of recovery, with wide-ranging implications for the understanding of metabolic adaptations as well as synthetic biology and metabolic engineering.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

The Value of Carbon Capture, Utilization, and Sequestration

Growing concern around climate change has ignited recent interest in carbon capture, utilization, and storage (CCUS) technologies and generated a series of studies on its global market potential.




sequestration

Asking how to save coral reefs leads to better understanding carbon sequestration

Carbon sequestration, the technology taking carbon dioxide out of fossil fuel emissions, just got a boost




sequestration

Sustainable agriculture reviews. 38, Carbon sequestration. Vol. 2, Materials and chemical methods [Electronic book] / Inamuddin, Abdullah M. Asiri, Eric Lichtfouse, editors.

Cham, Switzerland : Springer, [2019]