Search results for "disintegration"

showing 7 items of 57 documents

Ultrasound assisted method to increase soluble chemical oxygen demand (SCOD) of sewage sludge for digestion

2004

The aim of this study was to clarify the possibilities to increase the amount of soluble chemical oxygen demand (SCOD) and methane production of sludge using ultrasound technologies with and without oxidising agents. The study was done using multivariate data analyses. The most important factors affected were discovered. Ultrasonically assisted disintegration increased clearly the amount of SCOD of sludge. Also more methane was produced from treated sludge in anaerobic batch assays compared to the sludge with no ultrasonic treatment. Multivariate data analysis showed that ultrasonic power, dry solid content of sludge (DS), sludge temperature and ultrasonic treatment time have the most signi…

anaerobic digestionAcoustics and Ultrasonicssludge processingSonicationMethaneInorganic ChemistryBacteria AnaerobicSonicationchemistry.chemical_compoundBioreactorsOxygen ConsumptionSCODwastewater treatmenChemical Engineering (miscellaneous)Environmental ChemistryRadiology Nuclear Medicine and imagingSDG 7 - Affordable and Clean Energysludge disintegration/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energySewagesewage sludgebusiness.industryultrasoundsoluble chemical oxygen demandOrganic ChemistryUltrasoundChemical oxygen demandOxidantsPulp and paper industryRefuse DisposalOxygenAnaerobic digestionsludgeSolubilitychemistryoxidising agentsEnvironmental chemistrySCALE-UPUltrasonic sensorbusinessOxidation-ReductionSludgewastewatersUltrasonics Sonochemistry
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Disintegration of Wastewater Activated Sludge (WAS) for Improved Biogas Production

2018

Due to rapid urbanization, the number of wastewater treatment plants (WWTP) has increased, and so has the associated waste generated by them. Sustainable management of this waste can lead to the creation of energy-rich biogas via fermentation processes. This review presents recent advances in the anaerobic digestion processes that have led to greater biogas production. Disintegration techniques for enhancing the fermentation of waste activated sludge can be apportioned into biological, physical and chemical means, which are included in this review; they were mainly compared and contrasted in terms of the ensuing biogas yield. It was found that ultrasonic- and microwave-assisted disintegrati…

anaerobic digestionControl and Optimization020209 energyEnergy Engineering and Power Technology02 engineering and technology010501 environmental scienceslcsh:Technology01 natural sciencesBiogasbiogas0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringEngineering (miscellaneous)0105 earth and related environmental sciencesdisintegrationlcsh:TRenewable Energy Sustainability and the Environmentbusiness.industryfood and beveragesPulp and paper industryTotal dissolved solidsrenewable energyRenewable energyAnaerobic digestionwaste activated sludgeActivated sludgeWastewaterEnvironmental scienceSewage treatmentFermentationbusinessEnergy (miscellaneous)Energies
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Selective Disintegration–Milling to Obtain Metal-Rich Particle Fractions from E-Waste

2022

This research was supported by ERDF project no. 1.1.1.1/20/A/139 “Development of sustainable recycling technology of electronic scrap for precious and non-ferrous metals extraction”. The project was co-financed by REACT-EU funding to mitigate the effects of the pandemic crisis. The article was published with the financial support from the Riga Technical University Research Support Fund. This research was also supported by the Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Program H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. The authors w…

disintegratione-wasteMetals and Alloysprecious metalsprinted circuit boards:NATURAL SCIENCES::Physics [Research Subject Categories]e-waste millingGeneral Materials Sciencedisintegration; e-waste; e-waste mechanical pretreatment; e-waste milling; precious metals; printed circuit boardse-waste mechanical pretreatmentMetals
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Mass of astrophysically relevant 31Cl and the breakdown of the isobaric multiplet mass equation

2015

The mass of $^{31}$Cl has been measured with the JYFLTRAP double Penning trap mass spectrometer at the Ion-Guide Isotope Separator On-Line (IGISOL) facility. The determined mass-excess value, -7034.7(34) keV, is 15 times more precise than in the Atomic Mass Evaluation 2012. The quadratic form of the isobaric multiplet mass equation for the T=3/2 quartet at A=31 fails ($\chi^2_n$=11.6) and a non-zero cubic term, d=-3.5(11) keV, is obtained when the new mass value is adopted. $^{31}$Cl has been found to be less proton-bound with a proton separation energy of $S_p$=265(4) keV. Energies for the excited states in $^{31}$Cl and the photodisintegration rate on $^{31}$Cl have been determined with s…

massaspektrometriaprotonitisotoopitklooriphotodisintegrationastrofysiikkaFOS: Physical sciencesNuclear Experiment (nucl-ex)Nuclear Experimentisobaric multiplet mass equationydinfysiikkaNuclear Experiment
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Integracja w dezintegracji i dezintegracja w integracji: determinanty mechanizmów integracyjnych w Unii Europejskiej

2017

W dyskusji o przyszłości UE strategicznym wątkiem stała się kwestia integracji zróżnicowanej, której różne warianty zaczęły jawić się jako modus operandi Unii Europejskiej, co stało się przedmiotem kontrowersji między państwami członkowskimi. Co istotne, debacie poświęconej integracji zróżnicowanej zaczęły towarzyszyć rozważania na temat dezintegracji. W niniejszym artykule podjęta została próba zdefiniowania dezintegracji przy założeniu, że powinna być ona definiowana poprzez integrację, a także iż tak zaprojektowany proces definiowania nie może ograniczać się do wnioskowania o jednotorowej przeciwstawności dezintegracji względem integracji i vice versa. Wynika to z przekonania, że Unia Eu…

mechanizmy top-downdisintegrationEuropeanisationtop-down mechanismsintegracjabottom-up mechanismsdezintegracjaintegrationintegracja zróżnicowanaeuropeizacjamechanizmy bottom-updifferentiated integrationPrzegląd Europejski
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Psilocybin as an inducer of ego death and similar experiences of religious provenance

2016

The purpose of this chapter is to provide an overview of the impact of hallucinogenic psilocybin on religious-type emotionality related to ego disintegration. Psilocybin as a typical hallucinogen evokes alternations of visual perception (enhances a development of pseudo-hallucinations, phantom visual perception, or hypnagogic experiences). These visual phenomena may be inspiring and are claimed to enhance aesthetic appreciation. Additionally the hallucinogen induces transient impairment of cognitive functions and psychological regression comparable to the signs of ego blurring and dissociative phenomena. The psilocybin effects, initially euphoric, may become emotionally perceived as anxious…

schizophreniaego deathhallucinogenspsychoanalysisego disintegrationmysticismpsilocybin
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Brexit w świetle wybranych teorii (dez)integracji europejskiej

2019

Ujawniające się w ramach Unii Europejskiej (UE) procesy dezintegracyjne wywołują potrzebę i postulaty stworzenia teorii dezintegracji europejskiej. Obecnie możemy mówić co najwyżej o istnieniu zaczątków takich teorii. W niniejszym opracowaniu podjęto próbę wykazania, że istniejące teorie integracji europejskiej mogą być z powodzeniem wykorzystane do analizy procesów dezintegracyjnych. Można tego dokonać relatywnie prostym zabiegiem, poprzez potraktowanie ich w sposób „odwrócony”. Innymi słowy, teorie te – tak jak można stosować przy eksplanacji procesów integracji, tak też można zastosować dla wyjaśnienia, dlaczego niektóre państwa nie chcą lub nie mogą uczestniczyć w procesach zbyt daleko …

theories of European integration; European disintegration; Brexit; federalism; intergovernmentalismteoria integracji europejskiej; dezintegracja europejska; Brexit; federalizm; teoria międzyrządowaAthenaeum. Polskie Studia Politologiczne
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