Sökning: "nutrient recovery"

Visar resultat 16 - 20 av 43 uppsatser innehållade orden nutrient recovery.

1. 16. Feasibility Study for Production of Biogas from Wastewater and Sewage Sludge : Development of a Sustainability Assessment Framework and its Application

   Master-uppsats, KTH/Energiteknik

   Författare :Akash Som Gupta; [2020]
   Nyckelord :resource recovery; wastewater treatment; biogas; anaerobic digestion; energy recovery; sustainability assessment; SDG;

   Sammanfattning : Clean water and renewable energy are essential requirements to build resilience towards the adverse effects of climate change and global warming. Advanced wastewater treatment options may provide a unique opportunity to recover various useful resources such as energy (biogas), fertilizers, minerals, and metals embedded in the wastewater stream. LÄS MER

3. 17. Decreasing organic nitrogen concentrations in European water bodies - links to organic carbon trends and land cover

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Alexis Cazorla; [2020]
   Nyckelord :geography; GIS; physical geography; organic nitrogen; organic carbon; land cover; eutrophication; Europe; Earth and Environmental Sciences;

   Sammanfattning : European rivers experience increasing concentrations of total organic carbon (TOC) from terrestrial sources due to factors involving changes in land use, climate and soil acidity. However, low interest is given to the evolution of total organic nitrogen (TON) concentrations in surface waters, the links with TOC concentrations and the influence of the surrounding land cover on nutrient inputs. LÄS MER

4. 18. Nutrient dynamics in pak choi cultivation fertilized with biogas digestate : effects of non-nutrient digestate elements and amendment with mineral nutrients

   Master-uppsats, SLU/Department of Biosystems and Technology (from 130101)

   Författare :Kristina Weimers; [2020]
   Nyckelord :Biogas digestate; pak choi; Brassica rapa; ssp. chinensis; ‘Joy Choi’; greenhouse; soilless production; peat-based growing media; biostimulants; nitrification; nutrient recovery efficiency; phosphorus; sulphur;

   Sammanfattning : Anaerobic digestion in biogas plants produces renewable energy and a residue which is rich in plant nutrients. This residue is called digestate. Today, these digestates are mostly spread directly onto fields as manure. LÄS MER

5. 19. The potential of innovative dry source-separating urban sanitation technologies in Montero, Bolivia : A sustainability assessment

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Ylva Geber; [2020]
   Nyckelord :Montero; UDDT; nutrient recycling; sanitation; sustainability; multiple criteria; health; resource use; environmental; technical; organizational; financial; fertilizer; Montero; UDDT; näringsåtervinning; sanitet; hållbarhet; multipla kriterier; hälsa; resursanvändning; miljö; tekniskt; organisatorisk; finansiellt; gödselmedel;

   Sammanfattning : Montero is one of the cities with the highest population growth inthe lowlands of Bolivia. According to Montero's municipal plan for water and sanitation, only 36 % of the population in the urban areas of Montero is connected to the sewage system. LÄS MER

7. 20. Re-sourcing soil fertility : assessing the soil amendment potential of farm household resources and wastes in Bolo Silasie, Ethiopia

   Master-uppsats, SLU/Dept. of Soil and Environment

   Författare :Jorunn Hellman; [2020]
   Nyckelord :nutrient recovery; manure management; ecological sanitation; material flow analysis; East African agriculture;

   Sammanfattning : The global agriculture of today is to a high degree dependent on mineral fertilisers that through a constant accumulation of nitrogen (N) and phosphorus (P) in the biosphere contribute to greenhouse gas emissions and eutrophication of water bodies. At the same time, agricultural productivity around the world is largely constrained by low inputs of plant nutrients. LÄS MER