Rafael Jiménez López

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The disposal of olive mill wastewater (OMW) is a critical pollution problem, especially in Mediterranean countries. OMW is produced at a rate of ca. 2 1 kg-1 of olives. OMW has a biochemical oxygen demand (BOD) of 35–48 g kg-1. The evaporation of OMW in ponds produces large amounts of sludge (OMWS), which after being dried can be used as organic fertilizer(More)
Changes in organic C, available P, available heavy metal contents and enzymatic activities induced by addition of two heavy metal rich organic residues [a municipal solid waste compost (MWC) and a non-composted paper sludge (PS)] were determined in two different soils during a 280-day incubation experiment. The addition of the organic materials caused a(More)
Using parametric and nonparametric procedures, we identify the apparent source of cost inefficiency in banking. Unexplained inefficiencies of 20 to 25% from earlier studies are reduced to 1 to 5% when, in addition to commonly specified cost function influences, variables reflecting the external business environment and common industry indicators of(More)
The average contents, in mg/kg edible portion (e.p.), of elements not considered for nutritional labeling in Spanish table olives were as follows: aluminum, 71.1; boron, 4.41; barium, 2.77; cadmium, 0.04; cobalt, 0.12; chromium, 0.19; lithium, 6.56; nickel, 0.15; lead, 0.15; sulfur, 321; tin, 18.4; strontium, 9.71; and zirconium, 0.04. Sulfur was the most(More)
Optimum moisture content (MC) for three different compostable materials was estimated through the relationship 'MC vs. FAS', where FAS is the free air space, which is calculated from the values of both particle and bulk density (method 1). As the determination of particle and bulk density was complicated and tedious, two simplifications of the method 1 were(More)
Disposal of urban, agricultural and industrial organic residues impliesan increasing problem because of all the economic and environmentalrepercussions involved. One of the most adequate ways of managing this problemis the agricultural use of these wastes as organic amendments. Three organicresidues (AC, olive mill waste water sludge compost; MWC, municipal(More)
The influence of control parameters (aeration, moisture, and C/N ratio) during composting of a municipal solid waste (MSW)-legume-trimming residue (LTR) mixture was studied at a pilot plant scale. Factors measured included the composition of the main volatile organic carbons (VOCs) emitted including limonene, β-pinene, 2-butanone, undecane, phenol, toluene,(More)
The aim of this study is to analyse the factors related to the use of addictive substances in adolescence using association rules, descriptive tools included in Data Mining. Thus, we have a database referring to the consumption of addictive substances in adolescence, and use the free distribution program in the R arules package (version 2.10.0). The sample(More)
The effects of a municipal solid waste compost (MSWC) (from Villarrasa-HuelvaSpain) on growth, yield and mineral composition of tomato plants (Lycopersicon esculentum Miller, cv. Genaro) were studied. Results were compared with those observed both without the application of organic matter (Control) and with the app1ication of a commercial compost AC (made(More)