Essays about: "sludge use as a fertilizers"

Showing result 1 - 5 of 14 essays containing the words sludge use as a fertilizers.

  1. 1. Phosphorus reduction in wastewater using microalgae with different phosphorus starvation periods

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Fredrika Murby; [2021]
    Keywords : ;

    Abstract : Anthropogenic induced nutrients in the Baltic Sea have led to 97% of it being eutrophic. Phosphorus is regarded the main regulating nutrient, and nearly 25% of the nutrients coming to the Baltic Sea originate from wastewater treatment plants. READ MORE

  3. 2. Nutrient release from Revaq sludge vs. mineral fertilizer – Implications for eutrophication effects from agriculture

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : Nikolina Ström; [2019]
    Keywords : ;

    Abstract : Many farmers today are using mineral fertilizers (MF) containing big amounts of nutrients like phosphorus and nitrogen, which can lead to e.g. eutrophication in watercourses. READ MORE

  4. 3. The preconditions for increasing phosphorus recycling from sewage systems in Sweden : a study of factors influencing Swedish farmers´ willingness to use phosphorus fertilizers produced from sewage sludge

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Jesper Edholm Widén; [2019]
    Keywords : phosphorus recycling; phosphorus fertilizers; phosphorus precipitation; sewage sludge treatment; agricultural policy; sustainable agricultural development; thematic analysis; agroecology;

    Abstract : The Swedish government (2018) is currently investigating options for prohibiting direct application of sewage sludge on arable fields and replace it with techniques capable of precipitating phosphorus from sewage sludge and turn it into refined phosphorus fertilizing products. The investigation is part of the government´s ambition to increase the recycling rate of phosphorus available in sewage sludge and thus turn the sludge into a greater agricultural resource than it is today (ibid). READ MORE

  5. 4. Shit Matters! Assessing sociocultural barriers and opportunities for upscaling adoption of human faeces derived fertilizers in central Uganda

    University essay from Lunds universitet/LUCSUS

    Author : Elina Persson; Therese Hågerup; [2018]
    Keywords : nutrient recovered faecal sludge; soil infertility; sociocultural norms; IBM-WASH; diffusion of innovations; Uganda; sustainability science; Social Sciences;

    Abstract : Nutrient recovered faecal sludge is a novel alternative fertilizer product, and is proposed to be promoted in places where improvement in sanitation management is needed, for example in Uganda’s capital Kampala. However, Uganda and most of Africa is perceived as a faecofobic area, i.e. READ MORE

  6. 5. Slam som en del i en cirkulär ekonomi : en fallstudie om faktorer som påverkarbeslutet att använda slam som gödselmedel

    University essay from SLU/Dept. of Economics

    Author : Marcus Engvall; Olof Krumlinde; [2018]
    Keywords : slam; rötslam; cirkulär ekonomi; beslutstagande; risk; PESTEL-modell;

    Abstract : Sedan en tid tillbaka har människan levt över de ändliga tillgångar av resurser som jorden har att erbjuda. Många av människans aktiviteter utarmar sakta men säkert jordens naturresurser samtidigt som världens befolkning ökar kraftigt. Livsmedelsproduktionen måste öka i takt med att resursanvändningen måste bli mer hållbar. READ MORE