| 1. |
|
|
| 2. |
- Berntsson, Thore, 1947
(författare)
-
Hur skall industrins spillvärme utnyttjas på ekonomiskt optimalt sätt?
- 1988
-
Ingår i: Föredrag vid konferens "Energiekonomi", Göteborg april 2008. ; , s. 14-
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Industrin står för en stor andel av den totala energiförbrukningen i Sverige, I detta föredrag kommer olika möjligheter till tekniskt/ekonomiskt rationell energianvändning i industrin att diskuteras. Det kommer att visas att industriella energisystem bör ses som en resurs, även för samhället, i framtida investeringar för ett effektivare svenskt energisystem. Samarbete mellan industri och samhälle kan ske på ett rent ekonomiskt plan (samfinansiering, vinstdelning etc) eller på ett fysiskt plan (kommunuppvärmning med industriellt spillvärme etc). De rent ekonomiska samarbetsmöjligheterna är de intressantaste och har den utan jämförelse största potentialen. Nedan kommer att diskuteras möjligheter till effektivisering av både konsumtion och produktion av såväl värme som el. Möjligheter till besparingar av elkonsumtion i processer, för drift av strömningsmaskiner etc kommer däremot inte att diskuteras.
|
|
| 3. |
- Wikström, Per, et al.
(författare)
-
Magnetic aqueous two-phase separation: A new technique to increase rate of phase-separation, using dextran-ferrofluid or larger iron oxide particles
- 1987
-
Ingår i: Analytical Biochemistry. - : Elsevier BV. - 0003-2697. ; 167:2, s. 331-339
-
Tidskriftsartikel (refereegranskat)abstract
- A new technique to speed up the phase separation of aqueous two-phase systems is described. The technique is based on the addition of magnetically susceptible additives (ferrofluids or iron oxide particles). In a magnetic field such additives will induce a faster phase separation. In one approach, dextran-stabilized ferrofluid was added to an aqueous two-phase system containing polyethylene glycol and dextran. The ferrofluid was totally partitioned to the dextran phase. After mixing of the two-phase system, it was possible to reduce the separation time by a factor of 35 by applying a magnetic field to the system. Another approach involved the use of 1-μm iron oxide particles instead of ferrofluid. In this case also, the phase-separation time was reduced, by a factor of about 70, when the system was placed in a magnetic field. The addition of ferrofluid and/or iron oxide particles was shown to have no influence on enzyme partitioning or on enzyme activity. The partitioning of chloroplasts, on the other hand, was influenced unless the ferrofluid used had been treated with epoxysilane. A column system comprising 15 magnetic separation stages was constructed and was used for semicontinuous separation of enzyme mixtures.
|
|
| 4. |
- Aulenbach, Donald B., et al.
(författare)
-
Removal of Heavy Metals in Publicly Owned Treatment Works
- 1987
-
Ingår i: Environmental Progress. ; 6:2, s. 91-98
-
Tidskriftsartikel (refereegranskat)abstract
- Studies were conducted at three activated sludge treatment plants during normal operation. The heavy metals were measured in the influent to each plant, the primary sedimentation effluent where applicable, the discharge after activated sludge treatment and secondary sedimentation, and in one case after a final polishing filter. Both the soluble and the total portions were measured. Beryllium, nickel, and thallium were not found in detectable levels in any of the plant influents. Mercury was found in only trace amounts. The removals of the other metals varied considerably. No consistent conclusions can be made from the data; each metal, soluble or total fraction, and unit treatment operation must be interpreted individually. The only metal in the plant effluents consistently above the recommended limit was arsenic, and this barely above the limit, and the lead content from Fitchburg, despite 83% removal.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
|
|
