Essays about: "controlled eutrophication"

Showing result 1 - 5 of 11 essays containing the words controlled eutrophication.

  1. 1. Utilizing wood ash to stimulate algal growth in mine waters from northern Sweden

    University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

    Author : Katelyn Murphy; [2023]
    Keywords : acid rock drainage; acid mine drainage; controlled eutrophication;

    Abstract : Acid rock drainage (ARD), caused by the oxidation of sulphide bearing minerals, continues to be an environmental impact of both closed and operational mines, leading to waters with low pH values and high metal concentrations (Park et al., 2019). READ MORE

  3. 2. Ammonium-Based Aeration Control with Iterative Set-Point Tuning in Wastewater Treatment Plants

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Tom Bärnheim; [2023]
    Keywords : adaptive control; ammonium-based aeration control; ammonium feedback control; iterative set-point tuning; process control; wastewater treatment;

    Abstract : In wastewater treatment plants, the amount of ammonium is one example of a measure to determine the quality of the effluent wastewater. Ammonium is regarded as a hazardous chemical for aqueous ecosystems and can cause eutrophication due to its high nitrogen content. READ MORE

  4. 3. Potential for Enhanced Biological Phosphorus Removal in an activated sludge system for greywater

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Mehrzad Ghassemi; [2022]
    Keywords : Greywater; EBPR; Phosphorus; Biological treatment; Water and environmental engineering; Technology and Engineering;

    Abstract : As the world's population grows, concerns about water scarcity and rising pollution such as phosphorus and nitrogen have increased significantly. Greywater has been considered by researchers as an ideal alternative to fresh water for decades, and several projects have been implemented to treat and recycle it for various reuse purposes. READ MORE

  5. 4. Creating, delivering, and capturing value through sustainability : an exploratory study on the early development of commercial aquaponics in Sweden

    University essay from SLU/Dept. of Economics

    Author : Fardosa Farah; Rita Ndum; [2022]
    Keywords : aquaponics; business model; business model innovation; sustainability; sustainable innovation; sustainable business model innovation; aquaculture; recirculating aquaculture system;

    Abstract : Aquaculture is one of the fastest-growing food sectors in the world, and the increasing world population is said to only increase the need for more seafood. However, the sustainability of the aquaculture has been questioned recently and measures have been taken to overcome and internalize the negative externalities. READ MORE

  6. 5. Life cycle assessment of hybrid systems for rural electrification in Bolivia

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Sandu Seres; [2021]
    Keywords : Diesel; Stirling; Photovoltaic; impact category;

    Abstract : Bolivia is a developing country in South America. Many rural communities still lack access to electricity. The extension of the National Grid System to all rural communities is not feasible due to economic and topographic challenges as well as the environmental problems that may arise. To tackle these problems, Off-grid solutions are implemented. READ MORE