Sökning: "woodchip bioreactor"

Hittade 3 uppsatser innehållade orden woodchip bioreactor.

1. 1. Some Like It Hot: Pre-heating Prior to Bioreactor Treatment Enhances Nitrogen Removal From Mine Drainage

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

   Författare :Laura Nina Bettoni; [2022]
   Nyckelord :denitrification; nitrate removal; temperature; woodchip bioreactor; waste rock leachate;

   Sammanfattning : Ammonium-nitrate based explosives (NH4NO3) used within the operations of Kiruna iron ore mine release nitrate (NO3-) into the environment, potentially having adverse effects on local river-systems. One way of reducing NO3- impacts to the environment is through a woodchip denitrifying bioreactor (DBR). LÄS MER

3. 2. Comparison of Different Wood Types for Use as a Porous Substrate in Denitrifying Woodchip Bioreactors

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Erica Erikson; [2021]
   Nyckelord :denitrification; woodchip bioreactor; column experiments; denitrifikation; träflis-bioreaktor; kolonnexperiment;

   Sammanfattning : Explosives used in the mining industry release nitrate into the environment, causing concerns for the water quality in local river-systems. One way of reducing the nitrate loading into the environment is through a woodchip bioreactor. LÄS MER

4. 3. Spatial and temporal changes in microbial community composition in a full-scale woodchip bioreactor for treating mine water

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för biologisk grundutbildning

   Författare :Felicia Wallnäs; [2020]
   Nyckelord :;

   Sammanfattning : Incomplete detonation of nitrogen-based explosives can lead to abundant levels of nitrate in mine groundwater. The possibility of reducing nitrogen levels from the wastewater through denitrification, anammox and DNRA has been investigated using a full-scale bioreactor. The bioreactor is situated subsurface and is filled with pine woodchips. LÄS MER