[Latar belakang: Air tanah merupakan satu-satunya sumber air bersih di Kelurahan
Kukusan, Beji, Depok.Sampel air baku diambil dari sumur sebuah rumah kos di
daerah Kukusan yang memiliki kadar besi dan mangan yang melewati standar
baku air bersih yang ditetapkan Permenkes No.492/Menkes/Per/IV/2010.
Penelitian dilakukan dengan biosand filter untuk penyisihan besi dan mangan
secara biologis dengan bantuan bakteri pengoksidasi besi dan mangan. Tujuan:
Penelitian bertujuan untuk mengetahui efisiensi penyisihan besi dan mangan serta
mengetahui pengaruh waktu tinggal, pH, dan suhu terhadap kinerja biosand filter.
Bahan dan metode: Penelitian dilakukan dengan biosand filter skala pilot plant
berbentuk silinder berdiameter 20 cm yang terbuat dari bahan akrilik. Media pasir
yang digunakan berdiameter 0,595 - 1,19 mm (d10 = 0,425 mm; UC 1,6) dengan
ketebalan 50 cm. Penelitian dilakukan tanpa aerasi dan menggunakan waktu
tinggal 24 jam. Hasil: Dalam 40 hari penelitian, penyisihan besi dan mangan
masing-masing mencapai 77,67% dan 25%. Penyisihan mangan belum mencapai
steady state sehingga perlu dilakukan penelitian lanjutan terhadap penyisihan
mangan., Background: Ground water is tlie only water resource for Kelurahan Kukusan,
Beji, Depok. Water samples collected from a board house’s well in Kukusan had
relatively higher iron (Fe) and manganese (Mn) than the permissible limits
specified in Permenkes No.492/Menkes/Per/IV/2010. The study was conducted
with biosand filters for biological removal of iron and manganese with the help of
iron and manganese oxidizing bacteria. Objective: The study aims to determine
the removal efficiency of iron and manganese as well as determine the effect of
residence time, pH, and temperature on the performance of biosand filters.
Materials and methods: The study was conducted at the cylindrical pilot plant
scale biosand filter with 20 cm in diameter made of acrylic material. Medium
sand used is from 0.595 to 1.19 mm in diameter (d10 = 0.425 mm; UC 1.6) with a
thickness of 50 cm. The study was conducted without aeration and the use of 24-
hour residence time. Results: In the 40 days of study, the removal of iron and
manganese respectively reached 77.67% and 25%. The removal of manganese
has not reached steady state so that further research needs to be done against the
removal of manganese.]
S53120-Felicia Dwi Wulandari.pdf :: Unduh