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Quantity of Coliform Bacteria as Bioindicator of Water Pollution (Case Study: Several Tributaries in Purwokerto City, Banyumas Regency, Central Java) Rahayu, Nur Laila; Hendarto, Eko; Sulistiyawati, Indah; Agustiani, Rina Dwi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 5, No 1 (2020): February 2020
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.91 KB) | DOI: 10.24002/biota.v5i1.2938


The city of Purwokerto is crossed by several large rivers, this research examines several tributaries of a large river. Some tributaries that pass through the city of Purwokerto are the Raden River, the Caban River, the Jurig River and the Luhur River. Tributaries have the potential to influence water quality. This study aimed to analyze the quantity of coliform bacteria as an indicator of water pollution in several tributaries in Purwokerto City, Banyumas Regency. Microbiological tests were carried out by calculating the total coliform quantity and fecal coliform using the Most Probable Number (MPN) test. Total coliform and fecal coliform can be used as a reference indicator of water quality in the presence of water pollution. The laboratory test results for the quantity of coliform bacteria showed in several tributaries in Purwokerto City, Banyumas Regency, very high in total coliform or fecal coliform, exceeding the water quality standard.
PENGOLAHAN AIR GAMBUT MENJADI AIR BERSIH SECARA KONTINYU DI DESA PEUNAGA CUT UJONG Kiswanto, Kiswanto; Wintah, Wintah; Rahayu, Nur laila; Sulistiyowati, Endah
Publisher : BAPPEDA Kota Pekalongan

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Peat water has a brown color, humic acid content, organic substances, iron and pH levels are very high. To overcome the problem of peat water to be made clean water need to be processing first. Continuous processing of peat water includes; Neutralization, aeration, coagulation – flokulation, and filtration is a complete set of processes but is packaged in a simple form. This process is designed according to the condition and level of education of rural communities in peat water treatment. This study was conducted at a shelter in the village of Peunaga Cut Ujong Meurebo West Aceh. This research aims to reduce acidity, color, turbidity, flavor, iron (Fe), Zeng (Zn), organic matter, nitrate (NO3), and Nitrit (NO2). The research method is an experimental that is directly applied in the field. From the laboratory results in the UPTD Health Banda Aceh has been conducted test water quality before and after processing there are significant results. The results of experimental studies through the simple design of continuous processing using natural materials such as gravel, sand, charcoal and palm fiber and the chemical filling of the capor and alum obtained the results of color dissipation achieved 93.3%, pH of 98.3%, turbidity/cloudiness reached 91.9%, organic substance (KMNO4) of 73.3%, hardness of 39.7%, iron (Fe) 94.6%, zinc (Zn) of 91.09%, Flurode 77.33%, Nitrate (NO 3) of 80.04%, and Nitrit (NO 2) 99.31%. Meanwhile, the result of peat water is no smell and feel. The results of this trial are still under the standard quality of Permenkes RI No. 416/Menkes/PER/IX/1990 on the water quality requirements. Keywords: Peat, Continuous, Coagulan, Neutralization
ANALISIS LOGAM BERAT (Mn, Fe , Cd), SIANIDA DAN NITRIT PADA AIR ASAM TAMBANG BATU BARA Kiswanto, Kiswanto; Wintah, Wintah; Rahayu, Nur Laila
Publisher : BAPPEDA Kota Pekalongan

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Coal mining of PT. Mifa Brothers in Aceh Barat produces liquid waste containing hazardous heavy metals. Research conducted at PT. Mifa Brothers located in Sumber Batu Village, Meureubo Subdistrict, West Aceh Regency, Aceh Province. The coal mining activities by the PT. Mifa Brothers used open-cast mining systems with open method. From the resulting liquid waste, the PT. Mifa Brothers made two ponds used as liquid waste treatment. Efficiency of Sewage Treatment Plant (STP or IPAL) conducted by the industry, can be known through the analysis of he avy metals content (Fe, Mn and Cd), cyanide and nitrite on inlet and outlet of liquid waste shelter. This analysis was determined using the atomic absorption Spectropotemer (SSA) for metal Fe, Mn and Cd, while CN-and NO2-analysis-using UV-Vis spectrophotometry methods. Test result of heavy metal ions of iron ion, manganese ions, cadmium ions, nitrite, and cyanide on each inlet is 8.24; 0.223; < 0.01; 0.034 mg/L and 0.321 on each outlet are 3.03; 0.189; < 0.01 mg/L; 0,016 and undetectable for cyanide. Sewage treatment at PT. Mifa Brothers using Dolomite method as adsorbent has not been efficient and efficient in the reduction of pollutant levels. Keywords : SSA, UV-Vis spectrophotometry, Inlet and outlet, Fe, Mn, Cd,NO2, CN-