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All Journal JURNAL TEKNOLOGI LINGKUNGAN Journal of Informatics and Technology JIKI Jurnal Rekayasa Lingkungan Dialektika: Jurnal Ekonomi dan Ilmu Sosial

Indriyati Indriyati

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Author-ID : 2757602

Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Nursing Social Sciences

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DEGRADASI BAHAN ORGANIK LIMBAH CAIR INDUSTRI PERMEN DENGAN VARIASI WAKTU TINGGAL Indriyati Indriyati
Jurnal Teknologi Lingkungan Vol. 3 No. 1 (2002): JURNAL TEKNIK LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Limbah cair yang dihasilkan PT. Van Melle Indonesia (PTVMI), mengundangbahan organik tinggi dengan konsentrasi COD berkisar antara 10.000 – 30.000 mg/L. kandungan bahan organik yang tinggi dapat menimbulkan gangguan bagi perairan, sehingga perlu didegradasi salah satu alternatif teknologi pengolahan limbah yaitu menggunakan reaktor anaerobik lekat diatas terendam. Jenis reaktor ini adalah bioreaktor yang dilengkapi dengan bahan penyangga sebagai tempat massa mikroorganisme tumbuh dan berkembang biak.Penelitian ini dilakukan untuk melihat degradasi bahan organik limbah cair industri permen dengan variasi waktu tinggal 18, 14, 12 dan 10 hari yang dioperasikan secara kontinyu. Hasil degradasi bahan organik dengan variasi waktu tinggal terbaik di dapat pada waktu tinggal 12 hari dengan degradasi bahan organik terlarut sebesar 98,07%, pH efluen 6,90, produksi harian biogas 5 L/hari, produksi gas metan 3,25 L/hari dan kandungan gas metan 65%. Plastik yang digunakan sebagai media cukup efektif sebagai tempat menempelnya bakteri dengan porositas 87,30% dan luas permukaan efektif sebesar 514,40 M2/M3.

PROSES PEMBENIHAN (SEEDING) DAN AKLIMATISASI PADA REAKTOR TIPE FIXED BED Indriyati Indriyati
Jurnal Teknologi Lingkungan Vol. 4 No. 2 (2003): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Proses pembenihan (seeding) dan aklimatisasi menggunakan reactor lekatdiam terendam menggunakan media cincin keramik yang menggunakansubstrat limbah cair pabrik permen, memperlihatkan aktivitas bekteri semakinstabil pada hari ke 91 sampai hari ke 99. hal tersebut dapat dilihat daripenyisihan COD sebesar 82 – 86 % konsentrasi gas metan berkisar antara 62 –69 %, rentang pH 6,8 – 7,23 dan bakteri sudah melekat.

PENGARUH WAKTU TINGGAL TERHADAP PERPANDING BOD DAN COD SERTA PEMBENTUKAN GAS METAN (CH4) Indriyati Indriyati
Jurnal Teknologi Lingkungan Vol. 5 No. 1 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Generally, food wastewater contains high organic matter, therefore the exact wastewater treatment is biological process by using Fixed Bed reactor in anaerobic system. In this observation , showed the comparison between BOD and COD, mass balance and the forming of methane gas (CH4) with variation of hydraulic retention time 11 days, 7 days, 5 days and 3 days. Based on the observation result, the 11 days hydraulic retention time is the most efficient of reactor performance and the best forming of methane gas (CH4) is the 7 days of hydraulic retention.

UNJUK KERJA REAKTOR ANAEROB LEKAT DIAM TERENDAM DENGAN MEDIA PENYANGGA POTONGAN BAMBU Indriyati Indriyati
Jurnal Teknologi Lingkungan Vol. 8 No. 3 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Fixed Bed Anaerobic reactor that use support material from bamboo ings can be used as waste water biological treatment without oxygen inside reactor. On the experiment that use soybean sauce waste waterwith high organic content.According to the experiment, the optimum performance result was 3.5 days withloading rate 0.71 kg COD/m3.day and bamboo rengs can be used as supportmaterial.

PENGOLAHAN LIMBAH CAIR INDUSTRI MINUMAN Indriyati Indriyati
Jurnal Teknologi Lingkungan Vol. 9 No. 1 (2008): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

The organic concentration of soft drink factory waste water has not high organic concentration, therefore one of the alternatives of the treatment technology is using aerobic system : activated sludge. On this observation can be seen that the system can be used as waste water treatment for soft drink that is not so high in COD contain and the criteria parameters design can be fulfilled by process parameters during operation the system. The parameters that are not fulfill the design parameters is caused by the shock loading of toxic material or by the high loading rate of substrate of waste water. Based on parameter criteria as mention above, the efficiency that can be reached of this process is about 61,22%.

Co-Authors Achmad Machmud Agus Suryono Aris Sugiharto Beta Noranita Beta Noranita Djalal Er Riyanto Fadillah Amin Lutfi Rinanto Nurdin Bahtiar Priatmoko Priatmoko Raina Stefani Budi Ratih Nur Pratiwi Sesaria Kiki Tamara Sukmawati Nur Endah widiyono

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