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Academic literature on the topic 'Deammonifikation'
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Journal articles on the topic "Deammonifikation"
Weissenbacher, Norbert, and Bernhard Wett. "Deammonifikation auf Kläranlagen – Verfahrensentwicklung aus Österreich in alle Welt." Österreichische Wasser- und Abfallwirtschaft 70, no. 11-12 (September 10, 2018): 570–78. http://dx.doi.org/10.1007/s00506-018-0521-5.
Full textRosenwinkel, K. H., and A. Cornelius. "Einsatz der Deammonifikation im Moving-Bed-Verfahren zur Behandlung hoch stickstoffhaltiger Abwässer." Chemie Ingenieur Technik 76, no. 3 (March 5, 2004): 325–28. http://dx.doi.org/10.1002/cite.200403344.
Full textDissertations / Theses on the topic "Deammonifikation"
Hippen, Anke. "Einsatz der Deammonifikation zur Behandlung hoch stickstoffhaltiger Abwässer /." Hannover : ISAH, 2001. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009599111&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textNordebring, Sara. "Kväverening av rejektvatten genom deammonifikation eller adsorption med biokol : En studie för Arvidstorps avloppsreningsverk i Trollhättan." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-74196.
Full textOne of the environmental goals for the Swedish parliament is to reduce eutrophic factors. A source of eutrophication is nitrogen emissions from waste water treatment plants. Arvidstorp's waste water treatment plant in Trollhättan expects a population increase and sharper requirements for outgoing nitrogen emissions. This means that plans to build a new plant have been put into operation in order to handle the increasing load. The new facility may not be ready before the new requirements come. The waste water treatment plant is therefore investigating other options for reducing nitrogen from the wastewater. An alternative to nitrogen removal is to use reject water purification since this sewage stream contains high concentrations of nitrogen. Another problem facing the waste water treatment plant is that the costs of handling the dewatered sludge is expected to increase. The treatment plant is therefore looking for alternatives to reduce the sludge volume. A biomass pyrolysis plant where biochar is produced by the dewatered sludge could be an alternative since the advantage is that the sludge volume is reduced and that biochar can be used as water purification as it has the ability to adsorb substances. In this work, two different techniques to remove nitrogen from the reject stream at Arvidstorp's treatment plant has been studied. One is a proven technique called deammonification where nitrogen is purified with bacteria, the other one is biochar adsorption as a nitrogen removal process, however not an equally established purification technique on municipal waste water treatment plants. Several different techniques exists as deammonification processes. The one chosen for this work is ANITA Mox. ANITA Mox is available as two implementations where one is MBBR and the other is IFAS. The goals of this work was to make an investment calculation to assess how economically justifiable it is to install either ANITA Mox MBBR or ANITA Mox IFAS and to estimate the nitrogen removal capacity of the alternative with biochar adsorption. No economic aspects were taken into account for the latter option. For the calculations, models were built in Excel and two different experiments were performed. Pyrolysis of digestion residue for biochar production and adsorption, as well as an aeration test to determine the factors required when calculating the air demand for the deammonification process. ANITA Mox MBBR has the lowest annual costs, even though IFAS can reduce more nitrogen and thus have a greater impact on operating costs. IFAS also requires a smaller reactor volume. The reasons for the higher cost are the extra instruments required for the sedimentation basin and the shorter life span of these components which gives the higher annual cost. Biochar as a purification method is not a suitable method as it requires 66 times more sludge to produce the amount of biochar required to purify the reject water. The sludge that will be produced in a future plant can only reduce 1.5% of the nitrogen load.
Lindgren, Sandra. "Hur ska Kiruna avloppsreningsverk minska sin påverkan på recipienten Luossajokki? : En utredning av möjliga åtgärder inför en framtida omprövning av tillståndet." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96481.
Full textAn excess of nutrients in lakes and watercourses can cause environmental effects such as increased growth of planktonic algae (algal bloom) in the water and reed vegetation at the beaches, lack of oxygen in the bottom sediment and altered species composition. Emission of nitrogen in the form of ammonium (NH4+) can be converted to ammonia (NH3) which is toxic to most aquatic organisms already at very low concentrations. For many Swedish waste water treatment plants, stricter emission standards is expected for nitrogen and phosphorus in accordance with the EU Water Framework Directive (WFD). Simultaneously, new types of emission requirements may be based on the priority substances identified on the basis of the WDF. In the future, the Kiruna waste water treatment plant is expected to need to invest in a nitrogen treatment plant to reduce the emissions of ammonium in the purified wastewater, to help the recipient’s status achieve “Good status”. By comparing the advantages and disadvantages of various purification techniques with regard to incoming nitrogen levels, the levels of nitrogen through the process, the plant’s location and available areas, investment costs and the cold climate, this study has investigated various possibilities for reducing the amount of ammonium by oxidation at the Kiruna waste water treatment plant. The study showed that in a future investment, there are several benefits of choosing a moving bed biofilm reactor (MBBR) as a complementary step for nitrogen removal.
Ekman, Malin. "Environmental Impacts of a Wastewater Treatment Plant – With Sidestream Deammonification." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280165.
Full textWe, the humans, give rise to wastewater everyday. Municipal wastewater is rich in carbon, nitrogen and phosphorus, of which have large impacts on the environment. Wastewater treatment is therefore a necessity to minimize the anthropogenic impacts on both nature and biodiversity. To reduce the content of these substances, the wastewater is treated in wastewater treatment plants. One of them is Himmerfjärdsverket located in Sweden that uses, among others, deammonification of which is a biological technology for treating ammonium rich wastewaters. In this thesis, a life cycle assessment is conducted in order to do an overall evaluation of the environmental profile of this entire plant during two different years, 2019 and 2015. These years also have different deammonification technologies implemented, DEMON and DeAmmon. The results are evaluated upon the following impact categories: climate change, freshwater and marine eutrophication, human toxicity, ozone depletion and acidification.The impact assessment is conducted in GaBi software with the database ecoinvent version 3.3 and ReCiPe as method. Results indicate that the main contributors to pollution are due to anaerobic digestion, which is a process that stabilize sludge and also from emissions to soil that arise from disposal of digested sludge. Other large impacts come from chemicals that are added to the process, the effluent and other arising emissions from the different processes. It is further concluded that there are no major differences between the two deammonification technologies within the boundaries of this assessment.