Enhanced lindane removal from soil slurry by immobilized Streptomyces consortium |
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| Institution: | 1. Planta Piloto de Procesos Industriales Microbiológicos (PROIMI-CONICET), Avenida Belgrano y Pasaje Caseros, 4000 Tucumán, Argentina;2. Facultad de Ciencias Naturales e Instituto Miguel Lillo, Universidad Nacional de Tucumán, Miguel Lillo 205, 4000 Tucumán, Argentina;3. Universidad del Norte Santo Tomás de Aquino, 9 de Julio 165, 4000 Tucumán, Argentina;4. Unidad de Administración Territorial, Centro Científico Tecnológico, CCT-CONICET-Tucumán, Crisóstomo Álvarez 722, 4000 Tucumán, Argentina;5. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 491, 4000 Tucumán, Argentina;1. Facultad de Ingeniería, Universidad Nacional de Salta (UNSa), Salta, Argentina;2. Instituto de Investigaciones para la Industria Química (INIQUI), CONICET- UNSa, Salta, Argentina;3. Facultad de Ciencias Naturales, UNSa, Salta, Argentina;4. Planta de Procesos Industriales y Microbiológicos (PROIMI), CONICET, Tucumán, Argentina;5. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina;6. Singapore Centre for Environmental Life Sciences Engineering (SCELSE), School of Biological Sciences, Nanyang Technological University, Singapore;1. Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Microbiology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu 210023, China;2. State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, Shandong 271018, China;3. Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721, USA;1. Institute for Mechanics of Materials and Structures, Vienna University of Technology, Karlsplatz 13/202, 1040 Vienna, Austria;2. School of Engineering, University of Glasgow, Glasgow G12 8LT, Scotland, UK;1. University of Alabama, Department of Biological Sciences, PO Box 870344, Tuscaloosa, AL 35487, USA;2. Dauphin Island Sea Lab, 101 Bienville Blvd, Dauphin Island, AL 36528, USA |
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| Abstract: | The aim of this work was to assess lindane removal from soil slurry by a Streptomyces consortium immobilized in cloth sachets, at different inoculum, lindane and slurry concentrations. In concentrated slurry (soil/water ratio of 2:3), the higher lindane removal (35.3 mg Kg−1) was obtained with the medium inoculum (107 CFU g−1) and the highest lindane concentration tested, at 7 days of incubation. Although, lindane removal was also detected in abiotic controls, probably caused by pesticide adsorption to soil particles. Thus, these parameters were selected for evaluating the pesticide removal in diluted slurry (soil/water ratio of 1:4). After 14 days of incubation, 28.7 mg Kg−1 of lindane were removed. Also, a phytotoxicity assay demonstrated that seeds growing on diluted slurries bioremediated during 7 and 14 days, showed an improvement in biological parameters, compared to those growing on non-bioremediated slurries. Thus, bioremediated slurries would not have toxic effects on lettuce seeds. |
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| Keywords: | Lindane Soil slurry Consortium Immobilization |
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