Xilem Pinus merkusii as martapura river water biofilter Dwiyanti Ratih Dewi1, Lutpiatina Leka2 1Medical Laboratory Technology, Poltekkes Kemenkes Banjarmasin, Mistar Cokrokusumo Street 4a, Banjarbaru, Indonesia 2Medical Laboratory Technology, Poltekkes Kemenkes Banjarmasin, Mistar Cokrokusumo Street 4a, Banjarbaru, Indonesia Online published on 1 November, 2018. Abstract People of South Kalimantan useriver water for their daily needs. Martapura River has a level of contamination of Escherichia coli bacteria exceeding the threshold. Xylem conifers can be used as biofilter. Pine merkusii is a type of conifer plant that grows in South Kalimantan. The purpose of this study was to determine the differences in the value of MPN and TPC of Martapura river water and pathogenic bacteria before and after filtering treatment with xylem biofilter ofstem Pinus merkusii. This type of research is true experimental method in the form of draft Posttest Only Control Group Design. The research material used was xylem fromstem Pinus merkusii from pine forest in Banjarbaru and Pinus Banjar Regency. The research sample is the Martapura River water. The independent variable is Xilem stem Pinus merkusii. The dependent variable is the decrease in MPN coli feces, river water TPC anddissolved water Klebsiella pneumonia, Pseudomonas aerogenosa. The data obtained were tabulated and statistically analyzed by independent T test. MPN coli examination results of river water stools before and after treatment on average ≥ 2400/100 ml. TPC results of river water before treatment 5348 CFU/ml after treatment 9103 CFU/ml. TPC results of water dissolved by Klebsiella pneumonia before treatment 9724 CFU/ml, after treatment of 0 CFU/ml. TPC results ofdissolved water Pseudomonas aerogenosa before treatment 6988 CFU/ml, after treatment of 1202 CFU/ml. The conclusion of the study there were no differences in the results of river water TPC before and after treatment with a significance value of 0.41 (>0.05), there were differences in TPC results of dissolved water Klebsiella pneumonia and Pseudomonas aerogenosa. with a significance value of 0.000 (<0.05) and with a significance value of 0.01 (<0.05). It is recommended to do research with a different type of xylem. Top Keywords Xilem Pinus merkusii, biofilter, river water. Top |