Kake kaukopalvelun työvälineenä

Sari Virran esitys Kohti aineistojen yhteiskäyttöä -seminaarissa 2.11.2011 Helsingissä

Nocturne brillant pour le pianoforte à 4 mains, [op. 71]

Soitinnus: piano, 4-kät.

L'Univers

1876/10/11 (Numéro 3298).

L'Univers

1913/10/11 (Numéro 16084).

L'Univers

1872/10/11 (Numéro 1938).

L'Univers

1878/10/11 (Numéro 4013).

L'Univers

1905/10/11.

L'Univers

1908/10/11 (Numéro 14719).

L'Univers

1891/10/11 (Numéro 8669).

L'Univers

1889/10/11 (Numéro 7953).

L'Univers

1912/10/11 (Numéro 15776).

L'Univers

1879/10/11 (Numéro 4371).

L'Univers

1871/10/11 (Numéro 1579).

L'Univers

1873/10/11 (Numéro 2296).

Cassava starch extraction effluent treatment in a one phase tubular horizontal pilot reactor with support medium

The cassava starch industries generate a large volume of wastewater effluent that, stabilized in ponds, wastes its biogas energy and pollutes the atmosphere. To contribute with the reversion of this reality, this manipueira treatment research was developed in one phase anaerobic horizontal pilot reactor with support medium in bamboo pieces. The reactor was excavated into the ground and sealed with geomembrane in HDPE, having a volume equal to 33.6 m³ and continuous feeding by gravity. The stability indicators were pH, volatile acidity/total alkalinity ratio and biogas production. The statistical analyses were performed by a completely randomized design, with answers submitted to multivariate analysis. The organical loads in COD were 0.556; 0.670; 0.678 and 0.770 g L-1 and in volatile solids (VS) of 0.659; 0.608; 0.570 and 0.761 g L-1 for the hydraulic retention times (HRT) of 13.0; 11.5; 10.0 and 7.0 days, respectively. The reductions in COD were 88; 80; 88 and 67% and for VS of 76; 77; 65 and 61%. The biogas productions relatively to the consumed COD were 0.368; 0.795; 0.891 and 0.907 Lg-1, for the consumed VS of 0.524; 0.930; 1.757 and 0.952 Lg-1 and volumetric of 0.131; 0.330; 0.430 and 0.374 L L-1 d-1. The reactor remained stable and the bamboo pieces, in visual examination at the end of the experiment, showed to be in good physical conditions.