ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL
Kraft mill generates a large amount of dregs (D) and grits (G) as solid wastes due to the causticizing process. The disposal of these wastes is expensive in terms of land requirement and maintenance. On the other hand, solid wastes have alkalinity and buffer properties, which make them appropriate f...
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| Lenguaje: | English |
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Sociedad Chilena de Química
2007
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oai:scielo:S0717-970720070002000112007-09-13ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILLZAMBRANO,MPARODI,VBAEZA,JVIDAL,G Acid soils Dregs Grits Industrial wastes Kraft mill generates a large amount of dregs (D) and grits (G) as solid wastes due to the causticizing process. The disposal of these wastes is expensive in terms of land requirement and maintenance. On the other hand, solid wastes have alkalinity and buffer properties, which make them appropriate for use as amendments to acidic soils. The goal of this work was to determine the physical, chemical, toxicity and hazardousness characteristics of D & G. Additionally, the effect on acidic soils physical properties after mixing with these wastes as well as potential leach properties were evaluated. Hazardousness (inflammability, reactivity, corrosivity) and toxicity (due to inorganic compounds) assays on D & G indicated that their values are below the EPA Standard. Additionally, physicochemical characterization (pH (12.76), Ca (26.5%), Mg (1.5%), P (0.28%) and K (0.20%)) confirms their potential use in degraded solids. To study the amended soils leaches, the behavior of a series of columns with acid soils and D&G (1:1) at rates of 2 and 6 g kg-1 was evaluated during 86 d. The physicochemical characteristics of the amended soils were improved by D&G incorporationinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.52 n.2 20072007-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000200011en10.4067/S0717-97072007000200011 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Acid soils Dregs Grits Industrial wastes |
| spellingShingle |
Acid soils Dregs Grits Industrial wastes ZAMBRANO,M PARODI,V BAEZA,J VIDAL,G ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| description |
Kraft mill generates a large amount of dregs (D) and grits (G) as solid wastes due to the causticizing process. The disposal of these wastes is expensive in terms of land requirement and maintenance. On the other hand, solid wastes have alkalinity and buffer properties, which make them appropriate for use as amendments to acidic soils. The goal of this work was to determine the physical, chemical, toxicity and hazardousness characteristics of D & G. Additionally, the effect on acidic soils physical properties after mixing with these wastes as well as potential leach properties were evaluated. Hazardousness (inflammability, reactivity, corrosivity) and toxicity (due to inorganic compounds) assays on D & G indicated that their values are below the EPA Standard. Additionally, physicochemical characterization (pH (12.76), Ca (26.5%), Mg (1.5%), P (0.28%) and K (0.20%)) confirms their potential use in degraded solids. To study the amended soils leaches, the behavior of a series of columns with acid soils and D&G (1:1) at rates of 2 and 6 g kg-1 was evaluated during 86 d. The physicochemical characteristics of the amended soils were improved by D&G incorporation |
| author |
ZAMBRANO,M PARODI,V BAEZA,J VIDAL,G |
| author_facet |
ZAMBRANO,M PARODI,V BAEZA,J VIDAL,G |
| author_sort |
ZAMBRANO,M |
| title |
ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| title_short |
ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| title_full |
ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| title_fullStr |
ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| title_full_unstemmed |
ACIDS SOILS PH AND NUTRIENT IMPROVEMENT WHEN AMENDED WITH INORGANIC SOLID WASTES FROM KRAFT MILL |
| title_sort |
acids soils ph and nutrient improvement when amended with inorganic solid wastes from kraft mill |
| publisher |
Sociedad Chilena de Química |
| publishDate |
2007 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000200011 |
| work_keys_str_mv |
AT zambranom acidssoilsphandnutrientimprovementwhenamendedwithinorganicsolidwastesfromkraftmill AT parodiv acidssoilsphandnutrientimprovementwhenamendedwithinorganicsolidwastesfromkraftmill AT baezaj acidssoilsphandnutrientimprovementwhenamendedwithinorganicsolidwastesfromkraftmill AT vidalg acidssoilsphandnutrientimprovementwhenamendedwithinorganicsolidwastesfromkraftmill |
| _version_ |
1718445372686204928 |