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Showing result 1 - 5 of 194 essays matching the above criteria.

1. 1. Formulation development, rheological characterization, and cosmetic evaluation of gel-creams

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : Carl Pontén; [2024]
   Keywords : Rheology; Texture analysis; Viscometry; Semisolids; Design of Experiments; Critical Process Parameters; Critical Quality Atttibutes; Pharmaceutical Technology; Technology and Engineering;

   Abstract : Oil in water (o/w) emulsions are thermodynamically unstable systems composed of small oil droplets dispersed in a continuous aqueous phase. This means that given enough time, the two phases will separate. Pharmaceutical emulsions are used as a method of administering the Active Pharmaceutical Ingredient (API) for topical applications. READ MORE

3. 2. Brownification in a small stream originating from a peatland - A case study from Ryds Å in south Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Emelie Ström; Frida Karlsson Öhman; [2024]
   Keywords : Brownification; Peatland; Bolmen; DOM; Water Quality; Inflow; Technology and Engineering;

   Abstract : Brunifiering syftar till en process där vattnet blir brunare på grund av ökade halter av naturligt organiskt material och järn, vilket innebär utmaningar för miljön och människor. Sjön Bolmen i södra Sverige har problem med brunare vatten. READ MORE

4. 3. Finding ways of optimizing coagulant dosage, for a more sustainable wastewater treatment process

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Hanna Sjöman; [2023]
   Keywords : Wastewater treatment process; coagulant dosage; COD; machine learning; water and environmental engineering; Technology and Engineering;

   Abstract : The wastewater treatment process at Oatly consists of several treatment steps of which, two are chemical treatment steps involving coagulation followed by flotation to remove phosphorous and COD. The coagulant dosage is mainly determined based on the operator’s experience and supported using results from jar tests. READ MORE

5. 4. Quality of Spent Mushroom Compost Amended with Organic Material- Effect on Nutrient Content and Plant Growth

   University essay from SLU/Dept. of Biosystems and Technology (from 130101)

   Author : Rasha Kamel; [2023]
   Keywords : Apple Waste; Wood Chips; Microbial Content; pH; Pseudomonas; General Bacterial Flora; General Fungal Flora; Electrical Conductivity; Nutrient Content; Bulk Density; Porosity; Water Holding Capacity;

   Abstract : Peat, as a non-renewable growing media, poses environmental concerns due to extraction and decomposition processes, leading to increased greenhouse gas emissions. Alternatives growing media with potential to replace or reduce the use of peat are of great need. READ MORE

6. 5. Study of mixing and exchange in a drinking water reservoir using CFD modeling

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Nadja Rabizadeh; [2023]
   Keywords : CFD; Fluid Mechanics; OpenFOAM; drinking water reservoir; URANS; transient; exchange of water; mixing; Norrvatten;

   Abstract : This thesis examines water mixing and exchange in a drinking water reservoir operated by themunicipal association Norrvatten. Recent water samples from the reservoir’s outgoing waterhave shown an increase in culturable bacteria during late summer and fall. READ MORE