خيارات البحث
النتائج 1 - 3 من 3
Effect of soil pH on availability to crops of metals in sewage sludge-treated soils. II. Cadmium uptake by crops and implications for human dietary intake
1994
Smith, S.R. (Water Research Centre, Medmenham, Marlow, Bucks. SL7 2HD (United Kingdom))
Prospects in straw disintegration for biogas production
2013
Maroušek, Josef
The pretreatment methods for enhancing biogas production from oat straw under study include hot maceration, steam explosion, and pressure shockwaves. The micropore area (9, 55, and 64 m(2) g(-1)) inhibitor formations (0, 15, and 0 mL L(-1)) as well as the overall methane yields (67, 179, and 255 CH4 VS t(-1)) were robustly analyzed. It was confirmed that the operating conditions of the steam explosion must be precisely tailored to the substrate. Furthermore, it was beneficial to prepend the hot maceration before the steam explosion and the pressure shockwaves. The second alternative may give increased methane yields (246 in comparison to 273 CH4 VS t(-1)); however, the application of pressure shockwaves still faces limitations for deployment on a commercial scale.
اظهر المزيد [+] اقل [-]The distribution of metals from wastewater in the Mexican Valley of Mezquital
1991
Cajuste, L.J. (Graduate School, Chapingo-Montecillo (Mexico). Soil Chemistry Div.) | Carrillo G, R. | Cota G, E. | Laird, R.J.
