Essays about: "PO4-P"

Showing result 1 - 5 of 9 essays containing the word PO4-P.

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

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

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

   Abstract : 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). READ MORE

3. 2. P-cycling in sub-Arctic lakes – the importance of sediment release and retention

   University essay from SLU/Dept. of Aquatic Sciences and Assessment

   Author : Hanna Ravry; [2022]
   Keywords : phosphorus; sediment; oligotrophication;

   Abstract : Oligotrophication is generally caused by a decreased nutrient availability, usually due to phosphorous limitation. This is a phenomenon impacting the entire food web and at worst causing cascading alterations within an ecosystem. Lakes of the Northern Hemisphere have lately been documented to be subjected to oligotrophication (e.g. READ MORE

4. 3. The role of bed sediments for sorption of phosphorus in remediated ditches in Sweden

   University essay from SLU/Dept. of Soil and Environment

   Author : Linus Holgersson; [2022]
   Keywords : Phosphorus; Two-stage ditch; Equilibrium phosphate concentration; Phosphorus retention; Eutrophication; Soluble reactive phosphorus;

   Abstract : Human activities have increased nutrient losses to agricultural ditches and streams, including phosphorus. Phosphorus leakage leads to a worsening of water quality in downstream ecosystems, including lakes and seas. In addition, higher phosphorus concentrations lead to eutrophication, which negatively affects aquatic systems. READ MORE

5. 4. Nutrient concentrations before and after the Focus on Phosphorus project in E23 catchment

   University essay from SLU/Dept. of Soil and Environment

   Author : Åsa Larsson; [2018]
   Keywords : phosphorus; Greppa fosforn; two-stage ditch; structure liming; sedimentation pond;

   Abstract : Between 2007-2014, as part of the Greppa Näringen, there was a subproject on phosphorus losses called Focus on Phosphorus (FoP; Greppa Fosforn). Previous measures on eutrophication mainly focused on nitrogen leakage, whilst the purpose of FoP was to test already known mitigation methods against phosphorus losses in the field. READ MORE

6. 5. Risk for P-deficiency and consequently ineffective bacteria performance in an Membrane BioReactor for Kalmarsund WWTP

   University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

   Author : Sara Karlsson; [2014]
   Keywords : Membrane bioreactor; MBR; Membranefiltration; Biological treatment; PO4-P;

   Abstract : MBR, Membrane BioReactor, is a relatively new wastewater treatment technique using membrane filtration to separate particles from the biologically treated water. By means of analyzing analysis results from KARV, the existing wastewater treatment plant in Kalmar, from the recent six years and assuming that PO4-P in the water from the secondary settling tank equalizes with total effluent phosphorus in an MBR, the opportunity of an MBR to reach future effluent requirements could be assessed. READ MORE