Sökning: "aluminum sulfate"

Hittade 5 uppsatser innehållade orden aluminum sulfate.

1. 1. Investigation of the effect of waterwork sludge on the pre-precipitation at the wastewater treatment plant in Norrköping

   Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

   Författare :Sara Derelöv; [2023]
   Nyckelord :Wastewater treatment plant; waterwork sludge; pre-precipitation; precipitation chemical; aluminum sulfate; ferric chloride;

   Sammanfattning : .... LÄS MER

3. 2. Long-Term Impact of Drought on AcidSulfate Soil Leaching, a Study of NineCatchment Areas in Sweden and Finland

   Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

   Författare :Emilie Åström; [2022]
   Nyckelord :acid sulfate soil; hydrological drought; water chemistry; metal leaching; sulfate concentration; sur sulfatjord; hydrologisk torka; vattenkemi; metallurlakning; sulfatkoncentration;

   Sammanfattning : Sediments rich in sulfide were deposited in the Littorina sea in an environment that was shallow, anoxic,and reductive. The sediments were brought above sea level by isostatic uplift and can now be foundalong the coast of the Baltic sea. LÄS MER

4. 3. Polyvinyl alcohol (PVA) adhesives reinforced by microfibrillated cellulose (MFC) – adhesive properties and reinforcement mechanisms

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Daniela Wloch; [2019]
   Nyckelord :PVA adhesive; boric acid; MFC; cross-linkers; aluminum sulfate; initial wet tack;

   Sammanfattning : The aim of the project was to investigate a green and sustainable replacement for boric acid in polyvinyl alcohol (PVA) adhesives for solid paperboard production. Boric acid acts as a cross-linker and tackifier in the adhesive but is classified as a harmful substance. LÄS MER

5. 4. Sorption of PFOS to different solid components as a function of aqueous chemistry

   Master-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

   Författare :Jean Noël UWAYEZU; [2018]
   Nyckelord :;

   Sammanfattning : Knowledge of fate and transport of chemical contaminants in the environment is essential for reducing their adverse effects to humans and wildlife. Surface and ground waters serve as drinking water which helps to sustain life. LÄS MER

7. 5. Acid Sulfate Soils and Metal Accumulation in Sediments in Rosån Catchment, Northern Sweden

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Carola Lindström; [2017]
   Nyckelord :Acid sulfate soils; increased metal concentrations; anthropogenic activity; Sura sulfatjordar; ökade metallkoncentrationer; mänsklig påverkan;

   Sammanfattning : Global environmental concerns arise when marine deposits with fine-grained iron sulfide-rich sediments (FeS and FeS2), now situated above sea level, oxidize from anthropogenic lowering of the groundwater table. The oxidation of iron sulfides decreases the soil pH and the acidic environment of these Acid Sulfate Soils (AS) soils increase weathering and mobilization of metals into adjacent watercourses, lakes and estuaries. LÄS MER