Sökning: "Dissolved oxygen control"

Visar resultat 6 - 10 av 23 uppsatser innehållade orden Dissolved oxygen control.

1. 6. Development of a Bioreactor Simulator for supporting automation software test and verification

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

   Författare :Viktor Liljequist; [2017]
   Nyckelord :PROFIBUS; PLC; C#; .NET; PID Control; Bioreactor; cell culture;

   Sammanfattning : The GE Healthcare Life sciences organization develop and manufacture bioreactors, mixers, filtration skids and chromatography systems used together in a biomanufacturing platform. The platform is monitored and controlled by a distributed control system through a Programmable Logic Controller (PLC). LÄS MER

3. 7. Deammonification efficiency in combined UASB and IFAS system for mainstream WWT

   Master-uppsats, KTH/Mark- och vattenteknik

   Författare :Noureddine Khayi; [2017]
   Nyckelord :Ammonium; Nitrite; Nitrate; Deammonification; UASB; MBBR; DO; Aeration; monitoring; on-line control;

   Sammanfattning : The study is about Nitrogen removal from the low concentrated mainstream wastewater after Upflow Anaerobic Sludge Blanket reactor process (UASB) by single-stage Partial Nitritation/Anammox process in a pilot scale reactor at Hammarby Sjöstad in Stockholm. A mixture of various concentrations of dissolved oxygen and different aeration methods have been tested in the pilot scale reactor in five months divided into five periods where the temperature was set at 15° C throughout the study. LÄS MER

4. 8. Dissolution kinetic study of limonene in supercritical carbon dioxide by in-situ Raman spectroscopy

   Master-uppsats, Lunds universitet/Kemiska institutionen

   Författare :Cristiana Buzolin; [2016]
   Nyckelord :limonene; Raman spectroscopy; supercritical carbon dioxide; dissolution kinetics; solubility; analytical chemistry; analytisk kemi; Chemistry;

   Sammanfattning : Understanding the dissolution kinetics is important in the experimental determination of solubility, the efficiency of extractions, the rate of reactions and in general any heterogeneous process. Despite the extensive use of supercritical fluids, studies regarding the dissolution kinetics of compounds in supercritical carbon dioxide (scCO2) using analytical methods are limited in the literature. LÄS MER

5. 9. Innovative Control Strategies for the Partial Nitritation/Anammox Wastewater Treatment Process

   Master-uppsats, KTH/Energiteknik

   Författare :Evan Scott; [2016]
   Nyckelord :;

   Sammanfattning : The project undertaken in this thesis was proposed by IVL Swedish Environmental Research Institute and performed at their R&D facility Hammarby Sjöstadsverk as a part of the EU funded research project R3 Water. A single stage partial nitritation/Anammox system in a moving bed biofilm reactor (MBBR) was controlled using oxidation reduction potential (ORP) in order to evaluate its utility as control parameter. LÄS MER

7. 10. Control of marine plankton respiration : High temperature sensitivity at low temperatures influenced by substrate availability

   Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Författare :Katharina Amundsson; [2016]
   Nyckelord :plankton respiration; temperature; substrate; limiting factors; Q10; Baltic Sea;

   Sammanfattning : Temperature dependence of marine plankton respiration is an important factor in understanding the function and changes in the ecosystem of the ocean. The aim of this study is to test the temperature sensitivity (Q10) of plankton respiration. The oxygen optode method was used to measure plankton respiration. LÄS MER