Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Peter Vittrup Christensen"'
Publikováno v:
Chemical Engineering Journal Advances, Vol 10, Iss , Pp 100269- (2022)
In recirculating aquaculture systems (RAS), high degrees of recirculation are beneficial from an environmental perspective, but they also imply high risks of accumulation of unwanted substances in the water loop. The fundamental features and the rece
Externí odkaz:
https://doaj.org/article/f5e89567c99a4f8c9f6ceeeae303056f
Publikováno v:
Christensen, M L, Keiding, K & Christensen, P V 2020, ' Phosphorus Removal from Manure by Mechanical Separation using Salt and Polymers : Theoretical Simulations and Experimental Data ', American Society of Agricultural and Biological Engineers. Transactions, vol. 36, no. 2, pp. 175-185 . https://doi.org/10.13031/aea.13726
Full-scale separation apparatuses were used to process mink and sow manure. Mink manure was pretreated with iron sulfate and polymer; pig manure was pretreated with only polymer. Testing was done to study how adding chemicals affected phosphorus remo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7e1c3355213e8450211e7004de90846
https://vbn.aau.dk/da/publications/139f1419-d5e3-4c5a-901e-99188e5cda50
https://vbn.aau.dk/da/publications/139f1419-d5e3-4c5a-901e-99188e5cda50
Publikováno v:
Christensen, M L, Klausen, M M & Christensen, P V 2018, ' Test of precoat filtration technology for treatment of swimming pool water ', Water Science and Technology, vol. 77, no. 3, pp. 748-758 . https://doi.org/10.2166/wst.2017.593
The technical performance of a precoat filter was compared with that of a traditional sand filter. Particle concentration and size distribution were measured before and after the filtration of swimming pool water. Both the sand and precoat filters co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60bdaafe5e86a093884a4abf7e7fcf9b
https://doi.org/10.2166/wst.2017.593
https://doi.org/10.2166/wst.2017.593
Publikováno v:
Christensen, P V, Keiding, K & Christensen, M L 2014, ' Comparison of the characteristics and separation efficiency of different mink and pig manures ', American Society of Agricultural and Biological Engineers. Transactions, vol. 57, no. 4, pp. 1109-1119 . https://doi.org/10.13031/trans.57.10671
Three pig and two mink manures were pretreated with polymers and with iron (mink only) before filtration. Solid-liquid separation was conducted using a full-scale separation facility. Piglet manure was more difficult to separate than sow and mink man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9925b8a09eeb59f6f70f21b958fd0d1a
https://vbn.aau.dk/da/publications/5f2a15eb-66df-4af5-8b10-6aa025262716
https://vbn.aau.dk/da/publications/5f2a15eb-66df-4af5-8b10-6aa025262716
Autor:
Marie Just Mikkelsen, Thomas Kvist, Peter Vittrup Christensen, Torbjørn Ølshøj Jensen, Peter Westermann
Publikováno v:
Journal of Industrial Microbiology & Biotechnology
Clostridium pasteurianum can utilize glycerol as the sole carbon source for the production of butanol and 1,3-propanediol. Crude glycerol derived from biodiesel production has been shown to be toxic to the organism even in low concentrations. By exam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4edc6c01ab3234818f56f98f634d448
https://pubmed.ncbi.nlm.nih.gov/22212343
https://pubmed.ncbi.nlm.nih.gov/22212343
Publikováno v:
Christensen, P V & Keiding, K 2009, ' The use of dielectric spectroscopy for the characterisation of the precipitation of hydrophobically modified poly(acrylic-acid) with divalent barium ions ', Journal of Colloid and Interface Science, vol. 340, no. 1, pp. 46-52 .
The use of dielectric spectroscopy as a monitor for coagulation processes was investigated. Hydrophobically modified poly(acrylic-acid) polymers were used as model macromolecules and coagulated with barium ions. The coagulation process was quantified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c439a7165f46ba662b5197cf11d2a24
https://vbn.aau.dk/da/publications/692cab50-9b8e-11de-b96d-000ea68e967b
https://vbn.aau.dk/da/publications/692cab50-9b8e-11de-b96d-000ea68e967b
Publikováno v:
Christensen, P V, Hinge, M & Keiding, K 2009, ' The use of dielectric spectroscopy in the investigation of the effect of polymer choice on the flocculation of polystyrene particles ', Journal of Colloid and Interface Science, vol. 331, no. 1, pp. 113-121 . https://doi.org/10.1016/j.jcis.2008.11.027
Udgivelsesdato: MAR 1 The flocculation of colloidal suspensions using synthetic polymeric flocculants is an important operationin separation processes. Optimizing flocculant use requires insight into the underlying mechanismsgoverning flocculation. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd82f16b178104a08ebb793084584348
https://vbn.aau.dk/da/publications/7c5f9b20-c050-11dd-a5a8-000ea68e967b
https://vbn.aau.dk/da/publications/7c5f9b20-c050-11dd-a5a8-000ea68e967b
Publikováno v:
Christensen, P V & Keiding, K 2008, ' The use of dielectric spectroscopy for the characterization of polymer-induced flocculation of polystyrene particles ', Journal of Colloid and Interface Science, vol. 327, no. 2, pp. 362-369 . https://doi.org/10.1016/j.jcis.2008.08.042
The flocculation of colloidal suspensions is an important unit operation in many industries, as it greatly improves the performance of solid separation processes. The number of available techniques for evaluating flocculation processes on line is lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9352f5a406f0f668cbfb444c6ca309d0
https://pubmed.ncbi.nlm.nih.gov/18804775
https://pubmed.ncbi.nlm.nih.gov/18804775
Publikováno v:
Hjorth, M, Christensen, M L & Christensen, P V 2008, ' Flocculation, coagulation, and precipitation of manure affecting three separation techniques ', Bioresource Technology, vol. 99, no. 18, pp. 8598-8604 . https://doi.org/10.1016/j.biortech.2008.04.009
Hjorth, M, Christensen, M L & Christensen, P V 2008, ' Flocculation, coagulation and precipitation of manure affecting three separation techniques ', Bioresource Technology, vol. 99, pp. 8598-8604 . https://doi.org/10.1016/j.biortech.2008.04.009
Hjorth, M, Christensen, M L & Christensen, P V 2008, ' Flocculation, coagulation and precipitation of manure affecting three separation techniques ', Bioresource Technology, vol. 99, pp. 8598-8604 . https://doi.org/10.1016/j.biortech.2008.04.009
The effects of polymer flocculation before manure separation were investigated, through testing both a linear and a branched polymer. Centrifugation removed 60% of phosphorus from raw manure (control), whereas raw manure clogged the filters during gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d2c95f9d507f5971519628d0583d6af
https://vbn.aau.dk/da/publications/d0308cb0-015a-11dd-8a22-000ea68e967b
https://vbn.aau.dk/da/publications/d0308cb0-015a-11dd-8a22-000ea68e967b