Essays about: "in-organic phosphorus"

Showing result 1 - 5 of 9 essays containing the words in-organic phosphorus.

1. 1. Separation and acidification of digested animal manure : properties of the future organic fertilizers

   University essay from SLU/Dept. of Soil and Environment

   Author : Marie Björs; [2023]
   Keywords : Digestate; Eutrophication; Farmers’ survey; Plasma activation; Screw press;

   Abstract : Agricultural areas with a high animal density contribute to eutrophication in waterbodies and seas worldwide due to accumulation of nutrients around animal farms. Animal manure is heavy and bulky, thus unpractical to transport long distances and new techniques have been developed to refine animal manure and make it easier to transport. READ MORE

3. 2. Biochar from separated digestate and pig manure as soil amendment

   University essay from SLU/Dept. of Soil and Environment

   Author : Lovisa Nissen; [2022]
   Keywords : separation; screw press; incubation study; CO2 emission; N mineralization;

   Abstract : The situation in and around the Baltic Sea, with large areas with hypoxia in the sea and areas in the watershed with a high concentration of animal farms, has led to a need to increase the nutrient recycling of animal manure. High levels of phosphorus (P) in the soil lead to leaching, and by reducing the P-level in organic fertilizers, this leaching can be reduced. READ MORE

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

   University essay from SLU/Dept. of Soil and Environment

   Author : Emma Ryding; [2022]
   Keywords : Phosphorus fractionation; agricultural stream; sediment; two-stage ditch; eutrophication;

   Abstract : Sweden’s environmental quality objectives “A varied agricultural landscape” and “Zero eutrophication”, aims to ensure food production while reducing negative impact from fertilizers on the environment. The input ceilings of nutrient concentrations in the Baltic Sea are still critical. READ MORE

5. 4. Assessment of on-site wastewater treatment systems in unsewered communities in Jordan

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Hani Yahya Ali Shubail; [2020]
   Keywords : Constructed wetland; Decentralized wastewater treatment; Jordan; On-site wastewater treatment system;

   Abstract : Centralized wastewater treatment systems need substantial funds besides high-cost operation and maintenance programs, which could be considered unsuitable for low-income developing countries. As a solution, it becomes the trend towards on-site wastewater treatment systems (OWTs) due to its cost-effectiveness and flexibility of implementation and management. READ MORE

6. 5. Investigation of Readily Degradable Carbon Source Production by Hydrolyzing Sludge and Reject water at Ängen planned WWTP

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Kartika Novitasari Pranoto; [2020]
   Keywords : EBPR; activated sludge; primary sludge; reject water; hydrolysis rate; hydrolysis yield; VFAs; pH; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

   Abstract : As form of effort to mitigate the increase of pollution level that caused by human activity, Ängen wastewater treatment plant (WWTP) will be built in Lidköping as part of the European LIFE project (LIWE LIFE). Ängen WWTP will be operated based on enhanced biological phosphorus removal (EBPR) technology. READ MORE