Essays about: "accumulation tank"

Showing result 1 - 5 of 7 essays containing the words accumulation tank.

  1. 1. Production of polymers from a papermills wastewater using HTC substrate. : Investigating the viability of using wastewater sludge from Skoghalls’ papermill in combination with filtrate from HTC of sewage sludge to produce biological plastic producing polymers.

    University essay from Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Author : Regan George; [2023]
    Keywords : PHA; HTC-substrate; Polymer;

    Abstract : Since their conception, plastics have been a dominant product due to the versatility of use, and readily available raw materials. However, the production and consumption of synthetic plastics have continued to increase over the years, leading to a significant rise in plastic waste and its associated environmental impacts, such as the detrimental effects plastic waste has on ecosystems, including the presence of toxic microplastics and risks to marine life, are becoming the focus of criticism. READ MORE

  2. 2. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge

    University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Author : Virginia Tosi; [2021]
    Keywords : Anaerobic co-digestion; wheat straw pretreatment; nutrients availability; OLR; VFA acumulation; Biotechnology; Technology and Engineering;

    Abstract : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. READ MORE

  3. 3. Integrating membrane filtration forwater reuse in tissue mill

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

    Author : Ehsan Moslehi; [2018]
    Keywords : Membrane separation; Paper industry; Paper mill effluent; Water reuse ; Reverse Osmosis;

    Abstract : Water is an essential and indispensable component is the pulp- and paper production industry.The increase in energy costs, stricter environmental regulations and water resource shortageshave caused a reduction of the water footprint in the industry as well as an increase in waterrecycling and water circuit closure. READ MORE

  4. 4. Stable increase of organic loading rate in anaerobic membrane bioreactors working at ambient temperature

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Jean Monhonval; [2015]
    Keywords : environmental engineering; anaerobic membrane bioreactor; stability indicators; ambient methanization; stable increase organic loading rate; vattenförsörjningsteknik; avloppsteknik; water engineering; Technology and Engineering;

    Abstract : Anaerobic processes are an interesting alternative to treat wastewaters instead of aerobic treatments as it allows recovery of energy with the produced biogas while removing organic matter. In the industry, lots of low-strength industrial wastewaters are available and unused for biogas production due to their low concentration of organic material and high volumes (slaughterhouse wastewaters, dairies and beverages industries, oils and fats producers). READ MORE

  5. 5. A GIS analysis of electricity production using pressure retarded osmosis in the Nordic countries

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : David Jirout; [2015]
    Keywords : osmotic power; pressure retarded osmosis; sustainable development; carbon neutral renewable energy; GIS; NORDEL;

    Abstract : Osmotic power is an unexploited source of renewable energy that is based on mixing two types of water with a different salinity gradient. Osmotic power production (if life-cycle analysis of all necessary components is ignored) does not emit greenhouse gases to the atmosphere as opposed to fossil fuels employed in electricity production today, thus osmotic power does not systemically contribute to global warming and climate change. READ MORE