Background: The waste of Batik home industry has caused water pollution in the river and later ends at sea. Sembilang River becomes the meeting point of the water flow of pollution from households and batik home industries, later ending at Kaliprau Beach, Pemalang. Method:
Water was collected from the water flow of Sembilangan River in Juli 2016. The water sample for the BOD-COD examination was taken from four places with a distance of 50 meters and examined in 3 repetitions. The BOD-COD examination used the titration method. For the examination of Cu and Pb,
the samples were taken from 10 different fishponds in the drainage basin of Sembilangan River, Kaliprau Village. The test of the heavy metal used the Atomic Absorption Spectrophotometry (AAS) with three times repetition. Results: Sembilangan River and ten fishponds were classified into
Group II in the criteria of water quality standard. The average of COD level was 0.134 ppm (>the tolerance limit of 25 ppm), and BOD level was 3.574 ppm ( 0.020 ppm and Pb >
0.030 ppm). The highest level of Cu was 2.325 ppm, and the lowest one was 0.497 ppm. The highest level of Pb was 1.480 ppm, and the lowest one was 0.430 ppm. Conclusion: Sembilangan River was the waste estuary from households and textile home industries and contains the level of BOD,
Cu, and Pb above the tolerance limit (Cu > 0.020 ppm and Pb > 0.030 ppm).
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Document Type: Research Article
Programme Diploma of Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang 50275, Indonesia
Department of Biostatistics and Population Study, Faculty of Public Health, Diponegoro University, Semarang 50275, Indonesia
Publication date: April 1, 2017
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