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THAI NGUYEN UNIVERSITY UNIVERSITY OF AGRICULTURE AND FORESTRY AYU MONICA ENDRINA TOPIC TITLE : THE EFFECT OF CHROMIUM IN TEXTILE INDUSTRY WASTE ON SOIL QUALITY IN KARANGANYAR, INDONESIA BACHELOR THESIS Study Mode : Full-Time Major : Environmental Science and Management Faculty : International Programs Office Batch : 2014 – 2017 Thai Nguyen, November 2017 n DOCUMENTATION PAGE WITH ABSTRACT Thai Nguyen University of Agriculture and Forestry Degree Program : Bachelor of Environmental Science and Management Student Name : Ayu Monica Endrina Student ID : DTN1454290080 Thesis Title : THE EFFECT OF CHROMIUM IN TEXTILE INDUSTRY WASTE ON SOIL QUALITY IN KARANGANYAR, INDONESIA Foreigner Supervisor (s): Prof Dr Samanhudi, S.P, M.Si Dr Ir Margaretha Maria Alacoque Retno Rosariastuti, M.Si Vietnamese Supervisor Dr Hồ Ngọc Sơn Abstract: Chromium exists in the environment in several diverse forms such as, Cr (III), and Cr (VI) Cr toxicity depends on its valence state Cr (VI) which is regarded as being highly mobile is toxic, while Cr (III) is less mobile and less toxic Cr (VI) being more mobile in soil, more toxic and a stronger oxidant penetrates more readily into the cell membranes than the trivalent form Chromium affects to the soil pH, N total of the soil, and also K exchangeable This study was conducted by taking samples from five locations (Soil from the field, water bodies and irrigation), which four locations were in a location in textile industries area surrounding them such as Macanan, Getas, Waru, Ngringo and one location was in a location with no textile industry such as Karangpandan After obtaining the sample we analyzed soil chemical characteristic (pH, N total, P available, K exchangeable, C-organic, electric conductivity and cation exchange capacity) in the Laboratory of Chemistry and Soil Fertility, also about biological characteristic (indigenous bacteria and fungi) in the Laboratory of Soil Biology and Biotechnology The data were analyzed by statistical analysis using T-test 95%, n and tested the correlation to see the effect of chromium on soil quality The result of this research is at five sampling sites, soil at five locations contain the chromium content Three locations contain chromium exceeds the threshold (>2.5 µg.g-1) ie Getas (5.21 µg.g-1), Karangpandan (3.23 µg.g-1), Ngringo (3.06 µg.g-1) and two sites have chromium content below the permitted threshold (
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