Essays about: "particulate matter"

Showing result 21 - 25 of 96 essays containing the words particulate matter.

1. 21. Modelling control strategies for chemical phosphorus removal at Tivoli wastewater treatment plant

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Sara Rosendahl; [2021]
   Keywords : Wastewater treatment plant; phosphorus precipitation; control strategy; feedforward; feedback; ASM2d and primary clarifier model.;

   Abstract : Wastewater compose an environmental risk as it contains high levels of nutrients, including phosphorus. Wastewater treatment plants (WWTPs) reduce phosphorus by using coagulants that precipitate soluble phosphate into metal phosphate, which is separated by settling. READ MORE

3. 22. The Potential of Electrification in reducing Emissions from Passenger Cars in Stockholm County by 2030 : A Modeling Study of the Potential of Plug-In Hybrids and All-Electric Cars in reducing Greenhouse Gas Emissions and Air Pollution

   University essay from KTH/Transport och systemanalys

   Author : Arvid Hedbäck; [2021]
   Keywords : electric cars; electrification; Stockholm; 2030; modeling; Scaper; HBEFA; CO2; air pollution; nitrogen oxides; NOx; hydrocarbons; HC; particulate matter; PM10; PM2.5;

   Abstract : This study examines the potential of electrification in reducing greenhouse gas emissions and air pollution from passenger cars in a short- to mid-term time perspective. Using Stockholm County as a case study, this has been done in a three-step process by modeling the relative change in emissions between 2019 and 2030. READ MORE

4. 23. Understanding particulate matter - Material analyses of real-life diesel particulate filters and correlation to vehicles’ operational data

   University essay from KTH/Kemiteknik

   Author : Linus Nordin; [2021]
   Keywords : Diesel particulate filter; Ash measurement method development; Correlation study; Operational parameters; Principal component analysis; Dieselpartikelfilter; Askanalys metodutveckling; Korrelationsstudie; Driftsparametrar; Principal component analysis;

   Abstract : Syftet med denna studie var att undersöka effekterna av driftsparametrar på ett antal mätbara askrelaterade parametrar i dieselpartikelfilter (DPF) i tunga fordon. Tidigare studier visar att askans packningsdensitet, askflöde och hur askan fördelas inuti ett DPF är beroende av parametrar som temperatur, avgasflöde och oljeförbrukning ett fordon har. READ MORE

5. 24. Evaluating the potential of microplastics and natural organic matter for sorption of hydrophobic organic contaminants based on selected properties

   University essay from SLU/Dept. of Aquatic Sciences and Assessment

   Author : Sabrina Noël Reaume Zabalgoitia; [2021]
   Keywords : microplastics; natural organic matter; particulate organic matter; sorption; vector;

   Abstract : Interest in microplastic behaviour as vectors for hydrophobic organic pollutants has increased in the literature over recent years, however these materials constitute only one of many organic particulate groups in the environment able to compete for pollutants. This review examines particle characteristics including size, surface area, porosity, and age, and how these may influence natural organic particle and microplastic sorption capacity. READ MORE

6. 25. Modeling of Wet Scrubber with Heat Recovery in Biomass Combustion Plants

   University essay from Linnéuniversitetet/Institutionen för byggd miljö och energiteknik (BET)

   Author : Wilhelm Johansson; [2020]
   Keywords : Centrifugal Scrubber; Heat Recovery; Thermal Efficiency; Biomass Combustion; MCP-Directive; Simulation; Modelling;

   Abstract : During combustion of biomass, particulate matter is emitted, which has severe health impacts on humans. The company ITK Envifront has developed a scrubber technology that cleans the flue gas while also recovering the flue gas energy, increasing the efficiency of the combustion plant. READ MORE