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All Journal International Journal of Advances in Applied Sciences Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Elkawnie
Ganjar Samudro
Environmental Engineering Department
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics

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PENGARUH VARIASI KONSENTRASI DAN DEBIT PADA PENGOLAHAN AIR ARTIFISIAL (CAMPURAN GREY WATER DAN BLACK WATER) MENGGUNAKAN REAKTOR UASB Samudro, Ganjar; Syafrudin, Syafrudin; Yazid, Fauzia Rahmiyati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 9, No 1 (2012): Vol 9, No 1 (2012)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1318.729 KB) | DOI: 10.14710/presipitasi.v9i1.31-40

Abstract

In this study Mixture of domestic grey water and black water were investigated. This Mixture consists of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and  Nitrate  (NO3).  This  research  investigated  the  influence  of  concentration  and  flow  variation parameters  to  treating  the  Mixture  Grey  Water  and  Black  Water.  Effluent  quality  of  decreasing concentration varied by the concentration and flow recorded BOD was about 102-544 mg/l, COD was about 287-1.230 mg/l, TSS was about 280-780 mg/l and for treating  nitrate the result was fair enough than others was about 4-12 mg/l.  According to the flow variation resulted the retention time are 4, 6 and 8 hours. The best effluent quality was happened 878 mg/LCOD, and varied by flow are 0,125. The results  of  research  showed  the  higher  concentration  will  decrease  the  value  of  BOD  and  Nitrate removal, due to the influence of pH.The higher flow will decrease the value of BOD and increase COD, TSS, and Nitrate removal, and  optimum flow condition was 0,125 l/hour.
PEMANFAATAN LUMPUR AKTIF DAN EM4 SEBAGAI AKTIVATOR DALAM PROSES PENGOMPOSAN LIMBAH KULIT BAWANG DENGAN SLUDGE Samudro, Ganjar; Syafrudin, Syafrudin; Sujiwo, Bagus
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 9, No 2 (2012): Vol 9, No 2 (2012)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (921.387 KB) | DOI: 10.14710/presipitasi.v9i2.51-63

Abstract

Pengolahan air limbah PT. Indofood CBP menghasilkan sludge yang belum terolah dengan baik. PT. Indofood membutuhkan suatu teknik pengolahan sludge sebagai wujud komitmennya terhadap lingkungan. Tujuan penelitian ini adalah untuk mengetahui kondisi optimum pengomposan aerobik sludge dan kulit bawang. Kulit bawang yang digunakan adalah, yaitu kulit bawang dari divisi pengupasan bawang PT. Indofood CBP. Pada penelitian ini dilakukan analisis terhadap kandungan C-Organik, N-Total, P-Total, K-Total, C/N rasio, dan kadar air pada kompos tiap lima hari sekali. Hasil penelitian didapatkan C/N rasio aktivator EM4 adalah variasi A1 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar  19,74%, B1 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 18,61% dan C1 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 17%. Sedangkan C/N rasio aktivator lumpur aktif adalah variasi A2 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar 19,81%, B2 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 19,00%, dan C2 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 76%. Hal ini menunjukkan bahwa semakin banyak penambahan lumpur, semakin baik C/N rasio kompos.
STUDI OPTIMASI TAKAKURA DENGAN PENAMBAHAN SEKAM DAN BEKATUL Rezagama, Arya; Samudro, Ganjar
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 12, No 2 (2015): September 2015
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.958 KB) | DOI: 10.14710/presipitasi.v12i2.66-70

Abstract

Teknik pengomposan keranjang takakura telah banyak digunakan oleh rumahtangga di berbagai kota-kota besar di Indonesia. Pada sisi operasional terdapat kendalameliputi menurunnya efektifitas kinerja penguraian sampah organik sehingga seringterjadi kegagalan proses. Oleh karena itu, diperlukan suatu cara sederhana dalammeningkatkan kinerja porses pengomposan metode takakura. Secara garis besar,tahapan penelitian dibagi menjadi tahap persiapan, tahap pengomposan, dan tahappengolahan data. Penambahan sekam dan bekatul divariasikan ke dalam lima kotakkeranjang. Inokulum dalam komposter yang digunakan diambil dari keranjang milikmayarakat. Hasil penelitian menunjukkan penambahan sekam dan bekatul pada variasi3. 4, dan 5 belum menunjukkan hasil signifikan dalam meningkatkan kinerja inokulumseperti kotak 1. Temperatur inokulum baru masih di atas temperatur variasi/kotak yanglain. Hal ini disebabkan pada inokulum baru dimungkinkan masih terdapatmikroorganisme aktif serta sisa makanan dan sirkulasi udara yang baik. Namun jikadibandingkan satu persatu, penambahan sekam dan bekatul mampu menaikkantemperatur pada awal penelitian dibanding kotak 2 pada rata-rata proses. Penambahanbekatul dan sekam menyebabkan peningkatan rasio C/N. Namun, peningkatan rasio C/Ntidak serta merta membuat kotak 2, 3, dan 4 memiliki proses degradasi yang lebih baikdaripada inokulum baru yang ditandai dengan temperatur. Kandungan Karbon, Nitrogen,Phospor, dan Rasio C/N keseluruhan kompos matang telah memenuhi standar dalamSNI 19-7030-2004, standar internasional, dan Departemen Pertanian, tetapi masih belumsesuai dengan standar Departemen Pertanian dan PT. PUSRI
Yard phytoarchitecture for onsite sanitation of household wastewater containing copper Samudro, Ganjar; Samudro, Harida; Mangkoedihardjo, Sarwoko
International Journal of Advances in Applied Sciences Vol 13, No 2: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v13.i2.pp291-297

Abstract

Copper can be found in various equipment, building materials, and consumer products. When buildings are used, copper can enter wastewater in different ways. It is challenging for occupants to remove copper physically or chemically since they can potentially reduce copper levels through yard phytoarchitecture. This study aims to formulate houseplants' suitability to become decorative plants for the yard phytoarchitecture, simultaneously as onsite sanitation. This study identified the copper deconcentration pathway in wastewater by studying published works-based research. Literature was collected and selected based on recency, accessibility, and the relationship among copper, wastewater, and plants. The study findings show that processing copper by plant has the greatest opportunity to be implemented on a building scale. The yard phytoarchitecture system involves arranging plants in the yard, which serves both as a decorative feature and a way to treat the building's wastewater. It can be used on dry yards or ponds and only requires a small amount of land. The plants used should have low leaf density and high root density. It plays a dual role consisting of onsite sanitation infrastructure and yard aesthetics, which mutually strengthen the environmental health locally and positively effect on a larger scale.
The Impact of Coagulant Type and Dosage on Turbidity and pH Levels in Raw Water Treatment: A Comparative Study Using The Jar Test Method and Full-Scale Water Treatment Plant Wijaya, Budi; Sudarno, Sudarno; Samudro, Ganjar; Ardhianto, Rachmad
Elkawnie Vol. 11 No. 2 (2025)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v11i2.30001

Abstract

Abstract: The Gajah Mungkur Multipurpose Dam in Wonogiri functions as a source of raw surface water for the surrounding area. This water often contains suspended particles and colloidal substances due to natural processes such as soil erosion, plant decomposition, and microbial activity. This study evaluated three coagulants: Hincolac, PAC 280 Ac, and PAC 250 Ac, at dosages of 60, 70, 80, 90, and 100 ppm. The results of the jar test were compared with those of the full-scale water treatment plant operational test. The findings revealed that the Hincolac coagulant demonstrated superior performance, achieving an efficiency level of 98.60%, which exceeded that of the PAC 250 A and 280 AC coagulants. Hincolac coagulant reached optimal effectiveness at a concentration of 80 ppm, whereas PAC 280 AC and 250 coagulants achieved their highest efficiency at 100 ppm, resulting in turbidity reductions of 98.1% and 97.92%, respectively. Statistical analysis showed that all coagulant types significantly affected turbidity, pH, and floc size (p < 0.001). In a comprehensive application, a dosage of Hincolac 67 ± 7.7 ppm was comparable to the tube test method and effectively achieved a 99% reduction in turbidity in the water-treatment output. Elevated alkalinity and Al₂O₃ concentrations significantly influence the effectiveness of coagulant-based water treatment. Abstrak: Bendungan Serbaguna Gajah Mungkur di Wonogiri berfungsi sebagai sumber air baku berbasis air permukaan. Air permukaan sering kali mengandung partikel tersuspensi dan bahan koloid yang dihasilkan dari kejadian alami, seperti erosi tanah, pembusukan tanaman, dan aktivitas mikroba. Studi ini melibatkan tiga jenis koagulan, yaitu Hincolac, PAC 280 Ac, dan PAC 250 Ac, dan menggunakan metode dosis variabel, 60, 70, 80, 90, dan 100 (ppm). Hasil uji jar  test dibandingkan dengan hasil uji operasional wtp kapasitas penuh. Hasil studi menunjukkan bahwa koagulan Hincolac menunjukkan kinerja yang lebih baik, mencapai tingkat efisiensi yang tinggi sebesar 98,60% lebih baik dari pada koagulan jenis PAC 250 A dan 280 AC. Koagulan Hincolac mencapai efisiensi tertinggi pada konsentrasi 80 ppm, dibandingkan dengan koagulan PAC 280 AC dan 250 yang dicapai pada konsentrasi 100 ppm, menghasilkan pengurangan kekeruhan 98,1% dan 97,92%. Analisis statistik menunjukkan bahwa semua jenis koagulan memiliki dampak yang signifikan terhadap kekeruhan, pH, dan ukuran flok, dengan nilai p <0,001. Dalam aplikasi skala penuh, dosis Hincolac 67 ± 7,7 ppm sebanding dengan metode uji tabung, dan berhasil mencapai pengurangan kekeruhan 99% pada output pengolahan air. Tingkat kebasaan dan konsentrasi Al2O3 yang tinggi memiliki dampak yang signifikan terhadap hasil akhir pengolahan air berbasis koagulan.
Co-Authors Ariyanti, Meishinta Arya Rezagama Bagus Sujiwo Budi Wijaya Dian Asri Puspa Ratna, Dian Asri Puspa Dwi Siwi Handayani Fachrian Aji, Fachrian Fauzia Rahmiyati Yazid Harida Samudro Junaidi Junaidi Lucitawati, Erika Mochtar Hadiwidodo Prasasti, Riski Adyan Priska Septiana Putri Rachmad Ardhianto Raden Abadi Rulian E Sarwoko Mangkoedihardjo Sindi Martina Hastuti, Sindi Martina Sri Sumiyati Sudarno Sudarno Syafrudin Syafrudin Vaneza Citra Kurnia, Vaneza Citra Wiharyanto Oktiawan