Essays about: "save water"

Showing result 1 - 5 of 127 essays containing the words save water.

  1. 1. Salt tolerant horticultural plants to save freshwater usage

    University essay from SLU/Dept. of Plant Protection Biology

    Author : Tsun-Ya Chuang; [2024]
    Keywords : climate change; freshwater scarcity; halophyte; salt tolerance; bonsai;

    Abstract : As freshwater becomes scarce worldwide due to climate change and population increases, there is an urgent need to develop innovative approaches to address the issue of reducing freshwater consumption. Selecting species with high ornamental value and salt tolerance for use as green hedges or bonsai in urban or coastal areas could be a strategic approach for promoting greening and maintaining water resource sustainability. READ MORE

  3. 2. Finding ways of optimizing coagulant dosage, for a more sustainable wastewater treatment process

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Hanna Sjöman; [2023]
    Keywords : Wastewater treatment process; coagulant dosage; COD; machine learning; water and environmental engineering; Technology and Engineering;

    Abstract : The wastewater treatment process at Oatly consists of several treatment steps of which, two are chemical treatment steps involving coagulation followed by flotation to remove phosphorous and COD. The coagulant dosage is mainly determined based on the operator’s experience and supported using results from jar tests. READ MORE

  4. 3. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  5. 4. Heat recovery from vacuum brazing furnaces

    University essay from Lunds universitet/Avdelningen för Installations- och klimatiseringslära

    Author : Oliver Robertsson; Rasmus Wikman; [2023]
    Keywords : Waste heat; Vacuum furnace; Heat recovery; HVAC; Technology and Engineering;

    Abstract : By partly replacing the use of primary energy sources with waste heat recovery, climate and environmental goals for the future will be closer at hand. This thesis investigates the waste heat potential of Alfa Laval's vacuum brazing furnaces in Ronneby and alternative ways of integrating the furnace's waste heat into the building's HVAC system. READ MORE

  6. 5. Planning for Blue and Green Infrastructure in Response to Rising Sea Levels in Gothenburg

    University essay from KTH/Stadsbyggnad

    Author : Jiayi Lan; [2023]
    Keywords : sea level rise; blue and green infrastructure; climate-resilient design; sustainable; urban renewal;

    Abstract : Gothenburg, Sweden's second-largest city, faces significant environmental challenges due to climate change and risks from rising sea levels. These challenges include eutrophication, spread of environmental toxins, invasive species, and habitat loss. READ MORE