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  • 1.
    Alere, Ilze
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Particle dynamics in the drinking water distribution network of Luleå1997Inngår i: Vatten, ISSN 0042-2886, nr 4, s. 381-390Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [sv]

    Partikeldynamik i Luleås dricksvattennät

  • 2.
    Almqvist, Helena
    et al.
    Luleå kommun.
    Hanaeus, Jörgen
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Organic hazardous substances in graywater from Swedish households2006Inngår i: Journal of environmental engineering, ISSN 0733-9372, E-ISSN 1943-7870, Vol. 132, nr 8, s. 901-908Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The concentrations of several selected organic hazardous substances were investigated in domestic graywater. In total, 41 of 81 organic hazardous substances were found in concentrations above the detection limits (nonylphenol and octylphenol ethoxylates, brominated flame-retardants, organotin compounds, polyaromatic hydrocarbons, polychlorinated biphenyls, phthalates, linear-alkyl benzene sulfonate, and triclosan). Moreover, total solids, biochemical oxygen demand (BOD7), chemical oxygen demand (COD), total nitrogen, total phosphorus, potassium, and sulphur were investigated and presented for graywater. Another objective was to suggest potential household sources for a selected number of organic hazardous substances. The present and past investigations reveal households to be obvious contributors of organic hazardous substances to municipal wastewater, and that graywater is an important media in this transport. The spreading derives from diffuse household sources like everyday activities (laundry, cleaning, etc.), the wearing down of things such as pipe material and interior fittings, and from airborne deposition.

  • 3.
    Amofah, Lea Rastas
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanaeus, Jörgen
    Nutrient recovery in a smallscale wastewater treatment plant in cold climate2006Inngår i: Vatten, ISSN 0042-2886, Vol. 62, nr 4, s. 355-368Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    An onsite wastewater treatment plant at Brändön, north of Luleå, receiving primarily treated wastewater from a village, was operated and investigated during one year. The wastewater flow was 0.5 m3/d. The main treatment steps were a prefilter, mainly to distribute the flow, a vegetation filter consisting of two different clones of Salix and two phosphorus filters with Filtralite-P and blast furnace slag (BF slag) operated in parallel. The willow bed reduction of BOD7 was in average about 80% and of phosphorus (P) and nitrogen (N) 20-30%. The main mechanism was believed to be filtration in the bed. The reduction through plant uptake was minor. The Filtralite-P filter reduced BOD7, P and N with 67%, 72% and 20%, respectively. The BF slag filter reduced P and N with 53% and 3%, respectively. The release of sulphuric compounds from the BF slag filter increased the BOD7 content in the effluent. The Filtralite-P system achieved the requirements of the normal protection level given by the Swedish Environmental Protection Agency but not all of the requirements of the high protection level. The BF slag system did not fullfil the requirements of the two protection levels.

  • 4.
    Andersson, Östen
    et al.
    Chalmers University of Technology.
    Hanaeus, Jörgen
    Hedberg, torsten
    Chalmers University of Technology.
    Kartläggning av vattenkvalitetsförändringar i distributionsnät Stockholm 19811982Rapport (Annet vitenskapelig)
  • 5.
    Andersson-Chan, Anneli
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Bäckström, Magnus
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanaeus, Jörgen
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Kompetens för driftspersonal vid VA-verk: Bakgrund och utveckling2006Rapport (Annet vitenskapelig)
    Abstract [en]

    The competence of operators at Swedish water and wastewater treatmentplants is analysed and sorted into four groups. A basis for future educationand continued education is discussed in relation to selected factors ofdevelopment for the surrounding world.

  • 6.
    Andersson-Chan, Anneli
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanaeus, Jörgen
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Odorous wastewater emissions2006Inngår i: Vatten, ISSN 0042-2886, Vol. 62, nr 3, s. 227-236Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The objective of this article is to review odour problems of wastewater treatment facilities and air emission treatment methods. The malodorous wastewater emissions consist of a complex mixture of substances with different properties. A screening of volatile organic and reduced sulphur compounds revealed very low concentrations of individual compounds (< 50 ppb), and only dimethyl sulphide, hydrogen sulphide and methyl mercaptan were found at concentrations above threshold values. Indicating one single compound responsible for the foul odours was not possible. Two case studies are presented and discussed. In the first, a compact biofilter was evaluated for the treatment of gas streams from a sewage pumping station. A rockwool filter media was inoculated with a mixed bacterial wastewater culture that established successfully. However, evaluating the biofilter's performance proved analytically difficult and expensive due to the low concentrations of incoming gases. In the second case study the odour nuisance situation around a wastewater treatment plant was evaluated and a holistic approach to manage the odour problems was developed. An odour panel of local observers worked well, since they got involved in the process. However, using the panel's reports on odour episodes to find the source of the odour was difficult.

  • 7.
    Brännström, Hugo
    et al.
    Luleå tekniska universitet.
    Eriksson, Gunnar
    Lundborg, Glenn
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanaeus, Jörgen
    Nordell, Bo
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Systemutredning: flöden och miljöeffekter : Luleå gymnasieby1998Rapport (Annet vitenskapelig)
  • 8.
    Cripps, S.
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Effects of chemical precipitation by slaked lime on suspended particle dynamics in wastewater ponds1993Inngår i: Proceedings of the 2nd International Conference on Design and Operation of Small Wastewater Treatment Plants / [ed] H. Ødegaard, Oxford: Pergamon Press, 1993, s. 215-222Konferansepaper (Fagfellevurdert)
  • 9.
    Cui, Lilie
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Wastewater infiltration from ponds: a literature survey1994Rapport (Annet vitenskapelig)
  • 10.
    Forsberg, Carin
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Polymerinblandingens roll vid sedimentering av vatten i anrikningsverk1998Inngår i: Konferens i mineralteknik: Luleå, 10-11 februari 1998 / [ed] Marianne Thomaeus; Eric Forssberg, MinFo , 1998, s. 65-73Konferansepaper (Annet vitenskapelig)
  • 11.
    Grönlund, Erik
    et al.
    Water Direct Secretariat, Östersund.
    Hanaeus, Jörgen
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Johansson, Erica
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Falk, Stefan
    Mittuniversitetet, Department of Natural and Environmental Science.
    Performance of an experimental wastewater treatment high-rate algal pond in subarctic climate2010Inngår i: Water environment research, ISSN 1061-4303, E-ISSN 1554-7531, Vol. 82, nr 9, s. 830-839Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A pilot-scale experimental high-rate algal pond (HRAP) was investigated in the subarctic mid-Sweden region, at latitude 63 degrees N. During autumn 2002, conditions included temperatures below 10 degrees uC and photosynthetic active radiation below 200 mu E/m(2).s. Biochemical oxygen demand was reduced by approximately 90% (approximately 40 g/m(3)), chemical oxygen demand by 65% (approximately 80 g/m(3)), total phosphorus by 20% (approximately 1 g/m(3)), and total nitrogen by 46% (approximately 15 g/m(3)), at a retention time of approximately 2.5 days. During autumn 2003, the performance of the HRAP appeared better with a more dense microalgae culture; however, as a result of poor settling of the microalgae, the reduction was considerably lower. A major difference between the years was the microalgae composition. In 2002, the large green algae Coelastrum dominated with Chlamydomonas, Scenedesmus, Lagerheimia, and the Cryptophyte Rhodomonas. In 2003, there was a total dominance of the very small green algae Chlorella, known to be difficult to settle. In batch growth experiments during spring 2002, doubling times of 4 to 6 days were achieved. The period of temperatures above 10 degrees C and an insolation of more than approximately 270 uE/m(2).s (125 Langleys), which is well-documented as appropriate for HRAP function (Oswald, 1988a, 1988c), were measured to last for 4 to 4.5 months from early May to late September. However, the growth and treatment performance experiments indicated that a longer season may be possible-6.5 to 7 months, at best-from early April to late October.

  • 12.
    Grönlund, Erik
    et al.
    Luleå tekniska universitet.
    Johansson, Erica
    Hanaeus, Jörgen
    Falk, Stefan
    Seasonal microalgae variation in a subarctic wastewater stabilisation pond using chemical precipation2004Inngår i: Vatten, ISSN 0042-2886, Vol. 60, nr 4, s. 239-249Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Surface water microalgae samples were collected during the ice-free period in a small subarctic wastewater stabilization pond system, complemented with chemical precipitation during the winter period (fellingsdam), and serving 310 persons. In the primary pond microalgae dominance alternated between the Cryptophyte Cryptomonas and green algae (Chlorophyta). In the second and third pond the general pattern was that Cryptomonas dominated during summer but was replaced by green algae in autumn and the following spring. Estimations of the microalgae part of the effluent COD and phosphorus showed that microalgae dominated these parameters for only 3-4 weeks of 12 evaluated. This does not support the reasoning behind the European Union directive of the use of filtered samples for effluent BOD, COD and SS from stabilization ponds, in contrast to other wastewater treatment methods. The reasons behind the EU's procedure for ponds are based on the assumption that stabilization ponds convert "sewage BOD" to "algal BOD". The results of this study suggest that further investigations of the microalgae function in subarctic wastewater stabilization ponds and fellingsdams should be conducted, before implementing the EC directive into Swedish law, or into similar laws in other countries with subarctic regions.

  • 13.
    Grönlund, Erik
    et al.
    Luleå tekniska universitet.
    Klang, Anders
    Mittuniversitetet.
    Falk, Stefan
    Mittuniversitetet.
    Hanaeus, Jörgen
    Sustainability of wastewater treatment with microalgae in cold climate, evaluated with emergy and socio-ecological principles2004Inngår i: Ecological Engineering: The Journal of Ecotechnology, ISSN 0925-8574, E-ISSN 1872-6992, Vol. 22, nr 3, s. 155-174Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The sustainability of a microalgae wastewater treatment plant model (ALGA), assumed serving a small Swedish town with 10,000 inhabitants at latitude 60°N, was tested by comparing it to a conventional three-step treatment plant (WWTP), and a mechanical and chemical treatment plant (TP) complemented with a constructed wetland (TP + CW). Using two assessment methods-the socio-ecological principles method and emergy analysis-the ALGA model considered to have a better position for sustainable development, than the other two. In emergy terms the ALGA model had about half the resource use of the other two alternatives, and used most local free environmental resources, four times the TP + CW, and 100 times the WWTP. The violations against the second and third socio-ecological principles were considered equal for the three alternatives, the fourth was estimated to be in favor of the ALGA model, and the first principle was calculated to be in favor of the ALGA model with about eight times lower indicator value sum. Recirculation of nutrients back to society or production of economically viable products from the treatment by-products would strongly influence the sustainability. The ALGA model has a potential advantage due to interesting biochemical contents in the microalgae biomass, depending on what species will become dominating.

  • 14. Hanaeus, Jörgen
    Avloppsinfiltration i myrmark: en förstudie1981Rapport (Annet vitenskapelig)
  • 15. Hanaeus, Jörgen
    Elektrolytisk dosering vid kemisk fällning av ytvatten: del 2: undersökningar1979Rapport (Annet vitenskapelig)
  • 16. Hanaeus, Jörgen
    Frysproblem i servisledningar för dricksvatten1985Rapport (Annet vitenskapelig)
  • 17. Hanaeus, Jörgen
    Kartläggning av vattenkvalitetsförändringar i distributionsnät: Göteborg1981Rapport (Annet vitenskapelig)
  • 18. Hanaeus, Jörgen
    Kompendium i VA-teknik: Vattenanalytiska principer : laborationshandledning1976Annet (Annet (populærvitenskap, debatt, mm))
  • 19. Hanaeus, Jörgen
    Lamellsedimentering av pappersfibrer i modellanläggning1971Rapport (Annet vitenskapelig)
  • 20. Hanaeus, Jörgen
    Swedish field experiences with chemical precipitation in stabilization ponds1987Inngår i: Canadian journal of civil engineering (Print), ISSN 0315-1468, E-ISSN 1208-6029, Vol. 14, nr 1, s. 33-40Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Historically, sewage treatment in Sweden shows a development towards the construction and use of package plants. These package plants, however, present several problems associated with flow and temperature. Year-long studies of chemical precipitation using slaked lime in stabilization ponds have demonstrated an overall reduction of organic matter (as COD (chemical oxygen demand)) of about 75% to a level somewhat below 100 mg/L, and a reduction of total phosphorus of 90% to approximately 0.7 mg/L as P. These values were reached under ordinary operating plant condition. Two tracer studies using Rhodamine B dye have demonstrated the appearance of strong short-circuiting flows in ponds systems and the inserting of simple baffle walls in the pond has been recommended. Dewatering the sludge in the ponds by natural freezing has proven to be an excellent process, as the time for collecting sludge can be chosen almost arbitrarily during the year.

  • 21. Hanaeus, Jörgen
    Swedish field experiences woth chemical precipation in stabilization ponds1984Inngår i: Cold regions engineering: northern resource development : 3rd International specialty conference : Papers / [ed] Daniel W. Smith, Canadian Society for Civil Engineering , 1984, s. 547-564Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Swedish sewage treatment plant history shows a development towards compact plants. For smaller communities with big changes in flow and temperature, the compact plants offer several problems. Yearly studies of chemical precipitation in stabilization ponds have demonstrated an overall reduction of organic matter (as COD) with about 75% to a level of somewhat below 100 mg O//2/1, and a reduction of total phosphorus with 90% to a level of about 0. 7 mg P/1. These values were reached under ordinary operation of the plants and no optimization efforts have been made. All wastewater have been treated (no over-flows). Two tracer studies (Rhodamine B) have demonstrated the appearance of strong short-circuiting flows in ponds systems and the inserting of simple walls is recommended to avoid an at least hygienic risk. Sludge collection in ponds can be carried out by a dredger or by emtying the pond and using an excavator. Both ways have been successfully tried in full scale in Sweden.

  • 22. Hanaeus, Jörgen
    Teknisk och biologisk utveckling inom vattenbruket: ett samarbetsprojekt mellan Högskolan i Luleå och Umeå Universitet1988Rapport (Annet vitenskapelig)
  • 23. Hanaeus, Jörgen
    Undersökning av avloppsledningsnät och fällningsdammar i Björnrike: fält- och laboratorieförsök, påsken 19831983Rapport (Annet vitenskapelig)
  • 24. Hanaeus, Jörgen
    Vad är uthållig VA-teknik i norr?1999Inngår i: Byggforskning : Byggforskningsrådets tidning för en bättre byggd miljö, ISSN 1102-3686, nr 2, s. 26-27Artikkel i tidsskrift (Annet vitenskapelig)
  • 25. Hanaeus, Jörgen
    Wastewater treatment by chemical precipitation in ponds1991Doktoravhandling, med artikler (Annet vitenskapelig)
  • 26. Hanaeus, Jörgen
    et al.
    Andersson, Östen
    Chalmers University of Technology.
    Hedberg, Torsten
    Chalmers University of Technology.
    Vattenkvalitetsförändringar i mindre distributionsnät Kungälv1981Rapport (Annet vitenskapelig)
  • 27. Hanaeus, Jörgen
    et al.
    Andersson, Östen
    Chalmers University of Technology.
    Hedberg, Torsten
    Chalmers University of Technology.
    Vattenkvalitetsförändringar i mindre distributionsnät Landvetter1981Rapport (Annet vitenskapelig)
  • 28. Hanaeus, Jörgen
    et al.
    Andersson, Östen
    Chalmers University of Technology.
    Hedberg, Torsten
    Chalmers University of Technology.
    Vattenkvalitetsförändringar i mindre distributionsnät Lerum-Floda1981Rapport (Annet vitenskapelig)
  • 29. Hanaeus, Jörgen
    et al.
    Andersson, Östen
    Chalmers University of Technology.
    Hedberg, Torsten
    Chalmers University of Technology.
    Vattenkvalitetsförändringar i mindre distributionsnät Mölnlycke1981Rapport (Annet vitenskapelig)
  • 30.
    Hanaeus, Jörgen
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Grönlund, Erik
    Division of Ecotechnology, Mid Sweden University.
    Johansson, Erica
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Seasonal operation of ponds for chemical precipitation of wastewater2010Inngår i: Journal of cold regions engineering, ISSN 0887-381X, E-ISSN 1943-5495, Vol. 24, nr 4, s. 98-111Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Wastewater precipitation ponds (fellingsdams) are conventional stabilization ponds adapted to cold climate by the use of chemical precipitation to attain sufficient removal efficiency of impurities, primarily phosphorus. The objective with this investigation was to study the influence of an interruption of the dosage of coagulant during summer periods at two fellingsdam systems (Orrviken and Lockne) in the middle of Sweden. The investigation took place over two years characterized by unusual precipitation conditions; 2001 was intense in precipitation whereas summer 2002 represented a dry season. The results showed that there is a potential to utilize the summer biological activity in fellingsdams. At Orrviken the effluent quality measured as organic matter and phosphorus in the effluent was just slightly above the values that were reached by chemical precipitation. At Lockne the performance was lower. The organic matter reduction at Orrviken in the summers of 2001 and 2002 were 71 and 67%, respectively, compared to previous years using precipitant when the average was 78%. At Lockne, however, the values in the summers of 2001 and 2002 were 36 and 18%, respectively, compared to previous years using precipitant when the average was 55%. The phosphorous reduction at Orrviken in the summers of 2001 and 2002 were 85 and 89%, respectively, compared to previous years using precipitant when the average was 95%; at the Lockne plant, the phosphorous reduction during the summers of 2001 and 2002 were 60 and 66%, respectively, compared to the previous years' average of 86%. The nitrogen reduction varied considerably over the two summer periods. The reduction at Orrviken was 13% in 2001 and 58% in 2002; the reduction at Lockne was 13% in 2001 and 33% in 2002. Reference values of nitrogen reduction during normal operations were not available

  • 31.
    Hanaeus, Jörgen
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanæus, Åsa
    GTV.
    Zhang, Wen
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Fällningsdammar: nuläge och framtid2009Rapport (Annet vitenskapelig)
    Abstract [en]

    State of the art for fellingsdams - wastewater stabilisation ponds using chemical precipitation - is presented through a field study and from environ-mental reports. Design data are suggested. A system using treated water to irrigate an energy forest is described

  • 32. Hanaeus, Jörgen
    et al.
    Hedberg, Torsten
    Chalmers University of Technology.
    Efterfällning av avloppsvatten i pilot-plantanläggning1971Rapport (Annet vitenskapelig)
  • 33. Hanaeus, Jörgen
    et al.
    Hedström, Annelie
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hellström, Daniel
    Stockholm Vatten AB.
    Bäckström, Magnus
    Exergianalys som verktyg inom VA-tekniken2003Rapport (Annet vitenskapelig)
    Abstract [sv]

    Exergianalys är ett värderingssätt som ger ett mått på förbrukning av ordnade strukturer och kan ses som ett komplement till ekonomiska analyser. Exergianalysen kräver en klar avgränsning av det system som ska utvärderas. I denna rapport ges tre exempel på hur exergikalkyler kan nyttjas i VA-sammanhang. Slutligen diskuteras exergikalkylernas begränsningar och möjligheter

  • 34. Hanaeus, Jörgen
    et al.
    Hellström, Daniel
    Johansson, Erica
    Luleå tekniska universitet.
    A study of a urine separation system in an ecological village in northern Sweden1997Inngår i: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 35, nr 9, s. 153-160Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The development of a sustainable sewerage system includes the utilisation of nutrients from human urine and faeces in agriculture. One strategy for developing a sustainable sewerage system is to handle urine separately and use it as a fertiliser. One important reason for this strategy is the fact that urine is the source of around 70% of phosphorus and around 90% of nitrogen in black wastewater (wastewater from water closets). However, experience from systems with urine separation is limited. In this study a urine separation system in an "ecological" village in northern Sweden has been investigated. The village consists of 17 self-contained houses and the number of inhabitants have varied around 55 persons. The sewerage system is equipped with urine separation toilets. Thus, the urine is intended to be collected separately and led through a sewer system to a collection tank for urine. However, the collected urine was found to be relatively diluted. This could to some extent be explained by errors in the construction of the toilet. However, the main reason for the dilution is probably leakage of water into the urine sewer system. The study also showed that less than about half of the nitrogen and phosphorus from human urine disposed of through the toilets of the village was successfully collected. Thus, the study shows that the successful operation of a urine separation system is very dependent on well-designed toilets and a user behaviour that promotes a high degree of separation.

  • 35. Hanaeus, Jörgen
    et al.
    Hem, Lars
    Avloppslösningar för turistanläggningar: en norsk-svensk förstudie1987Rapport (Annet vitenskapelig)
  • 36. Hanaeus, Jörgen
    et al.
    Marklund, Stefan
    Luleå tekniska universitet.
    Avlopps- och avfallshantering i opåverkad natur i fjällvärlden1982Rapport (Annet vitenskapelig)
  • 37. Hanaeus, Jörgen
    et al.
    Marklund, Stefan
    Luleå tekniska universitet.
    Korttidstransporterat avloppsvattens kvalitativa sammansättning1985Rapport (Annet vitenskapelig)
  • 38. Hanaeus, Jörgen
    et al.
    Marklund, Stefan
    Luleå tekniska universitet.
    Särner, Erik
    Luleå tekniska universitet.
    Decentraliserade sanitetssystem - DESAN: förslag till forsknngsprogram 1985-19881985Rapport (Annet vitenskapelig)
  • 39. Hanaeus, Jörgen
    et al.
    Ringquist, Lena
    Luleå tekniska universitet.
    Torvavvattning genom frysning, pressning och torkning1984Rapport (Annet vitenskapelig)
  • 40. Hanaeus, Jörgen
    et al.
    Sellgren, Anders
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Ledningsteknik i kallt klimat: förslag till ramprogram 1983-19861983Rapport (Annet vitenskapelig)
  • 41.
    Hedström, Annelie
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Amofah, Lea Rastas
    Hanaeus, Jörgen
    Småskalig avloppsanläggning med salixbädd och sorbenter2007Rapport (Annet vitenskapelig)
    Abstract [en]

    In residential and rural areas in Sweden, a considerable number of houses are not connected to municipal wastewater treatment plants but the wastewater is treated in on-site sanitation systems. These systems contribute significantly to the anthropogenic discharge of phosphorus. Therefore, further development of small scale wastewater treatment systems is necessary. The aim of this project was to develop a small-scale wastewater treatment system to facilitate nutrient recovery. A full-scale experimental system with two treatment lines for a total flow of 1 m3/d was built. Investigated components of the system were a distribution layer, a willow bed with a root zone, followed by two parallel containers filled with filter materials for sorption of phosphorus. Filter material investigated in full-scale were Filtralite P and blast furnace (BF) slag. Besides the full-scale investigation, filter materials were investigated in laboratory. BF slag was investigated with respect to phosphorus sorption, wollastonite with respect to phosphorus and ammonium sorption and clinoptilolite with respect to ammonium adsorption.In the full-scale experiment suspended solids and organic matter was effectively reduced in the willow bed. The reduction of SS was 93% in average and the reduction of BOD was 86%. The effluent wastewater from the willow bed was sufficiently treated to avoid clogging of the following phosphorus filters. However, the nutrient reduction in the willow bed was moderate. The reduction of both total nitrogen and total phosphorus varied between 10 and 60%.The filter volume of Filtralite P and BF slag used in the full-scale investigation, 2,2 m3, was too small to achieve an efficient phosphorus reduction during one year. The investigated fresh slag sorbed more phosphorus compared to weathered slag. Thus, if the slag is covered during storage to prevent active substances to be leached out by precipitation, the phosphorus sorption of the slag will probably be preserved. BF slag contains sulphuric compounds. In both the laboratory and the full-scale studies, sulphuric compounds leached out when wastewater percolated through the filter. This can be a hinder for using BF slag in a wastewater treatment system.The investigated wollastonite and clinoptilolite can not be recommended to be used in small-scale wastewater treatment with respect to phosphorus and ammonium sorption. The investigated willow clones "Karin" and "Gudrun" could be establish as far north as in Luleå. The biomass production of the second growing season was as high as for salix clones with wastewater in southern Scandinavia.A willow bed combined with a phosphorus filter could be a robust small-scale wastewater treatment method but some components must be further developed.

  • 42.
    Hedström, Annelie
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hanaeus, Jörgen
    Natural freezing, drying, and composting for treatment of septic sludge1999Inngår i: Journal of cold regions engineering, ISSN 0887-381X, E-ISSN 1943-5495, Vol. 13, nr 4, s. 167-179Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A full-scale experimental plant intended for local treatment of septic sludge, situated in northern Sweden, is presented in this paper. The concept investigated included natural freezing, thawing, and drying in combination with composting. The experimental plant consisted of an undrained freezing-thawing-drying bed and a heat-insulated composter. About 500 L of fresh sludge, with a dry matter (DM) content of 4–5%, collected from a septic tank employed by one family, was transferred to the freezing-thawing-drying bed in the beginning of November 1996. During the winter months, the sludge froze and then thawed in the middle of May 1997. During a drying period of three weeks, the DM content increased from 10.6–21.3 to 25–95%. The final sludge volume and weight were 180 L and 54 kg, respectively. Approximate concentrations of nitrogen, phosphorus and total organic carbon of the dried sludge were determined to be 23, 5.9, and 346 g/kg DM. From June until the end of August, the sludge was cocomposted with kitchen refuse. Within two weeks, the composting temperature exceeded 65°C. The measured composting temperature indicated a high pathogen die-off, but before this concept can be suggested as an alternative to conventional septic sludge treatment, further studies should be conducted, including direct measurements of pathogens. The concept, however, has proved to be of interest in cold regions due to its simple construction and operation

  • 43.
    Johansson, Erica
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Grönlund, Erik
    Avdelningen för Ekoteknik, Mitthögskolan, Östersund.
    Fällningsdamm och biodamm: fällningsdammar med avstängd doseringsommartid2005Rapport (Annet vitenskapelig)
    Abstract [en]

    The addition of coagulant at two fullscale stabilisation pond systems inMidsweden was interrupted during two summer periods. The biologicalmode of working was compared to previous periods of chemical precipitation.The performance decreased slightly during interruption, influenced also bystrong hydraulic variations.

  • 44.
    Marklund, Stefan
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Filtrering och desinfektion av avloppsvatten från Saltoluokta fjällstation1986Rapport (Annet vitenskapelig)
  • 45.
    Marklund, Stefan
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Miljöpåverkan från torrtoaletter typ storgrop1985Rapport (Annet vitenskapelig)
  • 46.
    Palmquist, Helena
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    A Swedish overview of selecting hazardous substances as pollution indicators in wastewater2004Inngår i: Management of environmental quality, ISSN 1477-7835, E-ISSN 1758-6119, Vol. 15, nr 2, s. 186-203Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The objective was to outline a process for selecting hazardous substances as pollution indicators that imply a chemical risk for the recycling of wastewater residues on arable land and for wastewater discharge into receiving waters. The reviewed methodologies showed one commonality: grouping of various characteristics that symbolise hazardous properties. From each group, one or several indicator substances were selected to represent the hazardous property of that specific group. The selected set of indicator substances represented the chemical risk characteristics as a whole. One conclusion is that it is difficult to create a comprehensive list of indicator substances for the monitoring of chemical risks in wastewater and residues. Due to the insufficiency of knowledge about the chemical risks from complex systems such as a wastewater system and the methodology for selecting indicator substances, many simplifications have to be accepted. The 100,000 substances present in the technosphere, of which 30,000 are regarded as "everyday" chemicals, may end up in wastewater systems. We have a limited knowledge of many of these substances, thereby providing a weak base for assessing the true chemical risks in wastewater and residues for reuse on arable land. Although the pollution situation will not entirely be understood by measuring the status of only a few substances (important substances may be overlooked), detected substances indicate a specific pollution situation in wastewater or sludge, thus increasing our knowledge about the current concentrations.

  • 47.
    Palmquist, Helena
    et al.
    Luleå tekniska universitet.
    Hanaeus, Jörgen
    Hazardous substances in separately collected grey- and blackwater from ordinary Swedish households2005Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 348, nr 1-3, s. 151-163Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The objective of this paper is to present the mass flows of a number of selected hazardous substances in raw, separate grey- and blackwater from ordinary Swedish households. The Vibyasen housing area was selected for the investigation since its wastewater system has separate flows for grey- and blackwater. Due to the high analytical costs, a limited number of hazardous substances had to be selected and the number of samples restricted. The greywater flow was manually measured and the samples were collected at set time intervals. The blackwater samples were randomly collected from a blackwater tank. A total of 105 selected hazardous substances were measured in both fractions. Of the 24 elements (Ca, Fe, K, Mg, Na, S, Al, Ag, As, Ba, Bi, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Pt, Sb, Sn, Te, Zn) measured in both fractions, 22 were detected in the greywater and 23 in the blackwater. 81 organic substances were selected and measured in both fractions (nonylphenol- and octylphenol ethoxylates, brominated flame-retardants, organotin compounds, PAH, PCB, phthalates, monocyclic aromatics, and triclosan). 46 organic substances were found in greywater and 26 in blackwater. PCB was the only group found in neither grey- nor blackwater. The greywater flow fluctuated, with a specific average flow of 66 L per person and day. The composition of blackwater also fluctuated, with shifting proportions of urine, faeces, and flush water. The specific average blackwater flow was 28.5 L per person and day. The mixture of substances in separate wastewater fractions from Swedish households was too complex to exactly distinguish their specific sources.

  • 48.
    Sjölander, Björn
    et al.
    Chalmers University of Technology.
    Hanaeus, Jörgen
    Hedberg, Torsten
    Chalmers University of Technology.
    Kartläggning av vattenkvalitetsförändringar i distributionsnät Malmö 19801982Rapport (Annet vitenskapelig)
  • 49.
    Ödegaard, H.
    et al.
    Norwegian University of Science and Technology (NTNU), Trondheim.
    Balmer, P.
    Chalmers University of Technology.
    Hanaeus, Jörgen
    Chemical precipitation in highly loaded stabilization ponds in cold clomates: scandinavian experiences1987Inngår i: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 19, nr 12, s. 71-77Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Results both from a pilot-plant investigation and from full-scale stabilization ponds operating with phosphate precipitation are presented. Since the removal of organic matter by coagulation is more important than that by biodegradation, the ponds may be heavily loaded. Biodegradation during winter can be improved by pond aeration, and chemical precipitation in an aerated pond may give a very good and stable effluent

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