Search for dissertations about: "Solute removal"

Showing result 1 - 5 of 10 swedish dissertations containing the words Solute removal.

2. 1. The influence of multiscale hyporheic flow on solute transport : Implications for stream restoration enhancing nitrogen removal

   Author : Ida Morén; Anders Wörman; Joakim Riml; Roy Haggerty; KTH; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Hyporheic exchange flow; Hydrological modeling; Solute transport; Stream restoration; Nitrogen; Power spectral analysis; Hydraulic and Hydrologic Engineering; Hydraulik och teknisk hydrologi;

   Abstract : Stream water that flows into and out of streambeds is called hyporheic exchange flow (HEF).It continuously interacts with groundwater and thereby affect the water quality of local streamreaches as well as downstream recipients by providing an environment where solutes andenergy can be retained and degraded. READ MORE

4. 2. Modeling Flow and Solute Transport in Packed Beds : Applications in On-site Wastewater Treatment Systems

   Author : Amir Jourak; Krishna M. Pillai; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

   Abstract : The use of separate phosphorus (P) filter units containing replaceable filter materials with a high P binding capacity have been suggested as an appropriate passive method to treat the P from pre-treated domestic wastewater in on-site facilities. A large number of materials have been identified and suggested as being potentially suitable for such filters. READ MORE

5. 3. Prevention of Postoperative Duodenal Ileus by COX-2 Inhibition Improves Duodenal Function in Anaesthetised Rats

   Author : John Sedin; Olof Nylander; Markus Sjöblom; Lars Fändriks; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; duodenum; motility; enteric nervous system; luminal alkalinisation; CFTR; VIP; luminal Cl-; fluid secretion; solute absorption; mucosal permeability; 51Cr-EDTA; luminal osmolality; luminal hypertonicity; glucose; mannitol; orange juice; parecoxib; hexamethonium; mecamylamine; Physiology; Fysiologi;

   Abstract : Abdominal surgery inhibits gastrointestinal motility, a phenomenon referred to as postoperative ileus. Since the postoperative ileus disturbs duodenal physiology it is important to minimize the side effects of this condition. READ MORE

6. 4. Impact of peritoneal solute transport rate on nutritional status and clinical outcome in peritoneal dialysis patients

   Author : Sung Hee Chung; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Adequacy of dialysis; comorbid diseases; fluid removal; inflammation; mortality; malnutrition; peritoneal dialysis; peritoneal solute transport rate; residual renal function.;

   Abstract : The transport characteristics of the peritoneal membrane may be influenced by inflammation and various comorbid diseases (CMD) in peritoneal dialysis (PD) patients. On the other hand, the peritoneal solute transport rate (PSTR) may influence patient characteristics such as nutritional status as well as the clinical outcome of PD patients. READ MORE

7. 5. Modelling phosphorus dynamics in constructed wetlands upgraded with reactive filter media

   Author : Rajabu Hamisi; Gunno Renman; Berit Balfors; Roger Thunvik; Steve W. Lyon; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Constructed Wetland; COMSOL; Modelling; Reactive Solute Transport; Sorption Process; Mark- och vattenteknik; Land and Water Resources Engineering;

   Abstract : Developing low-cost and effective technologies to upgrade phosphorus (P) removal from the catchment runoffs and rural wastewater treatment facilities is one of the main research agendas to save the Baltic Sea from eutrophication. In Sweden, the construction of the constructed wetlands has been one of the environmental objectives for wastewater quality improvement in the small communities. READ MORE