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Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Published by Universitas Diponegoro
ISSN : 1907817X     EISSN : 25500023     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Arjuna Subject : -
Articles 555 Documents
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Indeks Pencemaran Lingkungan Secara Fisika-Kimia dan Biokonsentrasi Timbal (Pb) pada Kerang Hijau di Perairan Pesisir Semarang Utara Khusnia, Arsika Zuhrotul; Astorina, Nikke; Rahardjo, Mursid
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 2 (2019): Juli 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.466 KB) | DOI: 10.14710/presipitasi.v16i2.83-90

Abstract

The North Semarang ocean are functioned for high activity area also utilization in one site. The entry of waste into the waters or oceans caused the decrease of water quality.  Lead (Pb) entered to North Semarang oceans by kind of activities there. The aims of this researc are to describe pollution index and bioconcentration in the study location. This reasearch is descriptive observational with cross sectional study. Sampling location determined beside on zoonation.Twenty four (24) samples were determined purposively besed on location, wind direction and current type. The samples was measured in situ and laboratory test. The average of pH was 8,05 , temperature was  31,38°C, salinity was 28,4 ppt, DO was 4,07 mg/L and lead (Pb) was 0,99 mg/L. The average of dissolved oxygen not in accordance with quality standards (>5 mg/l) also lead (Pb) average is higher than standard (0,008 mg/l). Calculation of pollutan index in North Semarang ocean categorized as moderate polluted and the lead (Pb) bioconcentration on Perna viridis categorized as low accumulative with the value of BCF was 0,62 L/kg (BCF<100). All of samples classified as moderate polluted which caused bioconcentration and low bioacumulation on Perna viridis so that it is harmful for human health.
PENURUNAN KONSENTRASI LOGAM BERAT CU DAN AG PADA LIMBAH CAIR INDUSTRI PERAK RUMAH TANGGA DENGAN METODE ELEKTROKOAGULASI Hadiwododo, Mochtar
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 4, No 1 (2008): Vol 4, No 1 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (142.985 KB) | DOI: 10.14710/presipitasi.v4i1.75-79

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STUDI POTENSI KERJASAMA PEMERINTAH DAN SWASTA DI DALAM PENGELOLAAN SAMPAH DI KOTA BATAM Irawan Wisnu Wardhana; Nasrullah Nasrullah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 5, No 2 (2008): Vol 5, No 2 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2189.052 KB) | DOI: 10.14710/presipitasi.v5i2.90-98

Abstract

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POTENSI NITRIFIKASI OLEH BAKTERI YANG TERDAPAT DI LAUT ALIRAN KALI PLUMBON, LAUT ALIRAN KALI BANJIR KANAL BARAT DAN LAUT ALIRAN KALI BANJIR KANAL TIMUR Utomo, Sudarno; Nurlita, Harsanti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 8, No 1 (2011): Vol 8, No 1 (2011)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.52 KB) | DOI: 10.14710/presipitasi.v8i1.1-7

Abstract

Penelitian ini dilakukan untuk mengetahui perbedaan kandungan nitrat, nitrit dan ammonium dalam penentuan kandungan nitrogen air pada hilir laut daerah permukiman, industri dan tambak. Hipotesis dinyatakan bahwa lokasi yang berbeda memiliki karakteristik air yang juga berbeda. Metode analisis dilakukan dengan uji amonium, nitrit dan nitrat sesuai Standard Methods. Hasil yang didapatkan dalam penelitian ini Laut Aliran Kali Plumbon, Kali Banjir Kanal Barat dan Kali Banjir Kanal Timur memiliki potensi nitrifikasi, serta memliki bakteri yang mampu beradaptasi pada air yang memiliki salinitas dan mendegradasi amonium menjadi nitrit dengan baik.
Studi Komparasi Kelayakan Teknis dan Lingkungan Pemanfaatan Limbah B3 Sandblasting terhadap Limbah B3 Sandblasting dan Fly Ash sebagai Campuran Beton Dermawan, Denny; Ashari, Mochammad Luqman
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 15, No 1 (2018): Maret 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.43 KB) | DOI: 10.14710/presipitasi.v15i1.25-30

Abstract

Fly ash and sandblasting slag widely used as concrete’s builder because it contains quite high silica (SiO2) approximately 58,20% and 98,97%. Fly ash and sandblasting slag can increase concrete power pressure and contains characteristic like cement. Method of concrete making and technical feasibility test on this research use SNI standar (SNI 03-2834-2000). Environmental feasibility test use Toxicity Characteristic Leaching Procedur (TCLP) according PP No. 101 tahun 2014. The results of this research show that the use of  sandblasting slag can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5%; 10%; 15%; and 20% sandblasting slag are 16,32 MPa; 17,81 MPa; 18,89 MPa; and 15,24 MPa. The use of sandblasting slag and fly ash can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5% sandblasting slag and 30% fly ash; 10% sandblasting and 25% fly ash, 15% sandblasting and 20% fly ash, and  20% sandblasting and 15% fly ash are 18,53 Mpa, 16,08 MPa, 17,20 Mpa, and 15,91 MPa.  Based on the TCLP test, the concentration of heavy metal substances in 10% SBE are below the standard. Thus, it is  scientifically proven to conclude that concrete with 10% and 15% sandblasting slag and 5% sandblasting slag and 30% fly ash; 15% sandblasting and 20% fly ash are technically proper and safe for the environment.
ANALISIS KINERJA PENGOLAHAN AIR LIMBAH PAVILYUN KARTIKA RSPAD GATOT SOEBROTO JAKARTA Sumiyati, Sri; Imaniar, Imaniar
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 2, No 1 (2007): Vol 2, No 1 (2007)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.5 KB) | DOI: 10.14710/presipitasi.v2i1.39-42

Abstract

Hospitals  produce  solid  waste  and  also  wastewater,  hazardous  and  non-hazardous.  Pavilyun Kartika as a part of RSPAD Gatot Soebroto, produces wastewater that has characteristic like a domestic wastewater. The hazardous waste that produced by Pavilyun Kartika were managed by RSPAD Gatot Soebroto. In Pavilyun Kartika, wastewater with flows 52 m3/days comes from bathrooms  for  patients, laundry,  public  bathrooms,  and  also  kitchen.  Wastewater  of  Pavilyun Kartika contains high BOD, COD, and also Ammoniac, though still in save numbers, because still  under  the  standard  regulation  for wastewater  in  Jakarta.  Wastewater  treatment  plant  in Pavilyun Kartika use extended aeration method, as part of  biological treatment. The principal of the treatment are aeration, sedimentation, and chlorination.
CLUSTERING DATA PENCEMARAN UDARA SEKTOR INDUSTRI DI JAWA TENGAH DENGAN KOHONEN NEURAL NETWORK Warsito, Budi; Ispriyanti, Dwi; Widayanti, Henny
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 4, No 1 (2008): Vol 4, No 1 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (45.724 KB) | DOI: 10.14710/presipitasi.v4i1.17-22

Abstract

Industrial clustering in Central Java based on polutan yielded to be intended in order to obtaine an industrial group as information in development wisdom specially at Central Java Province. The  method that  is  selected  in  industrial  clustering  is  Kohonen  Artificial  Neural  Network.  An Artificial Neural Network is configured for a specific application, such as pattern recognition or data classification, through a learning process. Kohonen Neural Network can be used in data clustering through unsupervised learning. This network will divide the input pattern into some cluster, based on trained weight. Then this weight will be updated until it can classified itself into the class needed. This paper will present the result of the air contamination data clustering at industrial sector in Central Java at the year 2006 using Kohonen Neural Network. The result of this clustering is industrial clustering, based on polutan yielded, become three clusters.
PENGOLAHAN LIMBAH CAIR DAN LIMBAH BETALAKTAM PT. PHAPROS, TBK, SEMARANG Sumiyati, Sri; Prabarani, Fitri
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 5, No 2 (2008): Vol 5, No 2 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2151.457 KB) | DOI: 10.14710/presipitasi.v5i2.22-30

Abstract

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PENURUNAN WARNA, COD DAN TSS LIMBAH CAIR INDUSTRI TEKSTIL MENGGUNAKAN TEKNOLOGI DIELECTRIC BARRIER DISCHARGE DENGAN VARIASI TEGANGAN DAN FLOW RATE OKSIGEN Hadiwidodo, Mochtar; Huboyo, Haryono Setyo; Indrasarimmawati, Indrasarimmawati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 6, No 2 (2009): Vol 6, No 2 (2009)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.163 KB) | DOI: 10.14710/presipitasi.v6i2.16-22

Abstract

Textile wastewater consist of colour matter, Chemical Oxygen Demand (COD) and Total Suspended Solid (TSS) in high dose so that it have potency to pollute environment. Generally, textile wastewater can be treatment by konventional method. But, this method was not efficient because operational cost which is expensive. Discharge technology is new method to textile wastewater treatment. Dielectric Barrier Discharge reactor is discharge reactor to decompose organic matter in wastewater. Discharge was formed in reaktor which was given high voltage current to result active spesies with high oxidation potential, such us •OH, •O, •H, O3 dan H2O2 which are important to organic matter decomposition. This research intends to know capability of discharge which was formed in Dielectric Barrier Discharge reactor to decrease color matter, COD, and TSS. Textile wastewater was treatment ini the Dielectric Barrier Discharge reactor with variation in voltage (16,17,18 kV) and Oxygen flow rate (0,5;1,5;2,5 l/m). Voltage and oxygen flow rate variation affective to decomposition efficiency of colour, COD and TSS. Decomposition of each pollutant will be higher with voltage increasing and flowrate decreasing. Colour, COD and TSS decreasing was highest when was given maximum Voltage (18 kV) and minimum Oxygen flow rate (0,5 l/m). Percentages of colour, COD and TSS are 47,78%, 76,50% and 70,72%. Even pH in final treatment are between 6-7. Energy input which was needed to maximal treatment is 0,1128 kWh with electrical cost Rp.8,134/l.
Studi Efisiensi Penyisihan COD dalam Lindi dengan Sistem Evapotranspirasi Menggunakan Tumbuhan Sente (Alocasia macrorrhiza) dan Rumput Belulang (Eleusine indica) Badrus Zaman; Irawan Wisnu Wardana; Endro Sutrisno; Adistia Dian Kurniawati; Amalia Amalia
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 14, No 2 (2017): September 2017
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.05 KB) | DOI: 10.14710/presipitasi.v14i2.81-87

Abstract

COD dalam lindi merupakan salah satu parameter yang secara umum berada pada konsentrasi yang tiggi sebagai salah satu hasil biodegradasi material organik dan anorganik dalam sampah di TPA. Sistem evapotranspirasi yang menggunakan tumbuhan lokal merupakan salah satu sistem yang menjanjikan. Penelitian dilakukan untuk mengetahui efisiensi penyisihan COD dalam lindi dengan reaktor evapotranspirasi secara kontinyu yang menggunakan tumbuhan Tumbuhan Sente (Alocasia macrorrhiza) dan Rumput Belulang (Eleusine indica). Hasil uji menunjukkan efisiensi pada semua reaktor mulai sekitar hari ke 3 hingga hari ke 25 mengalami fluktuasi yang cenderung menurun (dari ± 75% menjadi ± 50%), tetapi hari selanjutnya cenderung meningkat. Pola tersebut dipengaruhi oleh peran media tanam, bakteri dalam media tanam, bakteri pada akar tumbuhan dan aktivitas metabolisme tumbuhan uji. Secara keseluruhan reaktor yang menggunakan Tumbuhan Sente (Alocasia macrorrhiza) lebih fluktuatif dibandingkan denga menggunakan Rumput Belulang (Eleusine indica) yang dipengaruhi pola pertumbuhan dan perkembangannya.

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