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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 600 Documents
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ELECTRICITY GENERATION FROM LANDFILL GAS Budisulistiorini, Sri Hapsari
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 3, No 2 (2007): Vol 3, No 2 (2007)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.737 KB) | DOI: 10.14710/presipitasi.v3i2.9-15

Abstract

Energy  from  renewables  has  been  sought  to  replace  current  fossil  fuel  energy  generation. Landfill gas has great potential to generate power since it contains methane 40 to 60%. Utilizing an enhanced landfill  gas as fuel for  power generator is also  beneficial to reduce greenhouse gas  emission  from landfill  otherwise  it  will  escape  to  the  atmosphere.  Current  technology  in power  generation  from landfill  gas  includes  organic  rankine  cycle  (ORC)  and  stirling  cycle engine  (SCE)  to  add  the traditional  reciprocating  internal  combustion  engine  (ICE)  and  gas turbine  (GT).  The  state-of-the art  power  generation  technologies  have  been  developed  and demonstrated  in  the  US  whereas  in Australia,  landfill  gas  power  plant  remains  with  the conventional ones; reciprocating engine and gas turbine.
Prioritas Penentuan Peningkatan Kualitas Lingkungan Permukiman Kumuh yang Berkelanjutan Mutaqin, Zenal; Persada, Citra; Suroso, Erdi
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 (429.414 KB) | DOI: 10.14710/presipitasi.v16i2.65-75

Abstract

The enhancement of environmental quality for urban settlement in Palembang is expected to be sustainable due to the increase number of slum areas and the limited funding allocation for the infrastructure establishment. This study aimed to determine priority scale of activities and locations according to three pillars of sustainable development which can alleviate slum areas i.e. physical environment, social and economic aspects by involving all stakeholders. This research will provide information for the local government to determine priority activities and locations for settlement improvement by using Analytical Hierarchy Process (AHP). The study revealed that the main factor to improve the environmental quality for settlement in 29 Ilir sub-district was the infrastructure development with urgency level reaching 46.7%. Meanwhile, the urgency level of social activity factor was approximately 31.2% followed by the economic development factor which was the lowest level by 22.1%. However, the highest priority level from those activity factors was household waste management by 100%, while other priority activities that should be done consecutively were waste infrastructure (93.5%), community service activities (83,6%), environmental drainage (66.2%), sanitation (66.1%), business capital loans (63%), training and entrepreneurship (61%), and compensation for the poor (57,9 %). The aforementioned activities were conducted in priority locations in which environmental quality was relatively poor.
PENGARUH PENCAMPURAN LUMPUR TINJA PADA PENGOMPOSAN SAMPAH ORGANIK (STUDI KASUS TPA JERUKLEGI KABUPATEN CILACAP) Budihardjo, Mochamad Arief; Harsanto, Cahyo
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 (196.421 KB) | DOI: 10.14710/presipitasi.v4i1.62-68

Abstract

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ANALISA KEMAMPUAN ADSORPSI TANAH JENIS LANAU KEPASIRAN (SANDY SILT) TERHADAP PHOSPAT SEBAGAI BAHAN AKTIF SODIUM TRIPOLYPHOSPATE INDUSTRI PENGOLAHAN UDANG (STUDI KASUS INDUSTRI PENGOLAHAN UDANG) Hardyanti, Nurandani; Rahayu, Suparni Setyowati
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 (1120.354 KB) | DOI: 10.14710/presipitasi.v5i2.76-81

Abstract

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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.
Studi Pemanfaatan Limbah Padat Industri Pengolahan Minyak Kelapa Sawit Spent Bleaching Earth sebagai Pengganti Agregat pada 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 (802.236 KB) | DOI: 10.14710/presipitasi.v15i1.7-10

Abstract

Palm oil refinery factory has solid waste by product  called Spent Bleaching Earth (SBE). SBE consists of some chemical compounds and one of them  is SiO2 up to 83,05%. SiO2 or silica fume can cause silicosis if it is exposed to the atmosphere and frequently inhaled by the workers.  On the other hand,  SiO2  is one of the material  composition of Portland cement. Thus, it is necessary to conduct a research about the utilization of SBE. as a concrete mixture. SBE is utilized as fine aggregate substitution by the composition of 0%, 10%, 20%, 30%, and 40% of the total amount of fine aggregate. The conducted tests are fineness modulus calculation, compressive strength, setting time, and TCLP. The method used for mix  design is SNI 03-2834-2000 with f’c 28,5 MPa and slump 12 ± 2 cm. This research  shows  that concretes with SBE substitution which achieve the planned compressive strength are 10% SBE with 34,16 MPa and 20% SBE with 29,06 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% SBE is technically proper and safe for the environment.
FITOREMEDIASI PHOSPAT DENGAN PEMANFAATAN ENCENG GONDOK (EICHHORNIA CRASSIPES) (STUDI KASUS PADA LIMBAH CAIR INDUSTRI KECIL LAUNDRY) Hardyanti, Nurandani; Rahayu, Suparni Setyowati
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 (70.833 KB) | DOI: 10.14710/presipitasi.v2i1.28-33

Abstract

Small laundry was one of home industries that grown rapidly. Small laundry industries usually disposed their  wastewater  straightly  to  the  city  drain  system  without  any  treatment  before.  It caused a large amount of phosphate accumulating in the sewage. Because of the environment was  unable  to handle  it  by  themselves,  we  needed  a  simple,  cheap,  and  applicative  way  to reduce phosphate. Phytoremediation was one of methods to remove phosphate. This research used  water  hyacinth. Phytoremediation  was  be  done  by  planting  water  hyacinth  in  the phosphate  wastewater.  By  doing this  we  expected  that  water  hyacinth  would  absorb  the phosphate  from  the  water.  The experiments  was  taken  for  5  days  with  phosphate concentrations of 200 mg/liters; 250 mg/liters; 300mg/liters. At early concentrations of 200mg/l showed that water hyacinth could reduce phosphate until 24.03% or about 144,1603 mg, for the early  concentrations  of  250  mg/l  showed  that  water  hyacinth could  reduce  22.95%  or  about 172.1209 mg and for the early concentrations of 300 mg/liters showed that water hyacinth could absorb about 20,87 % or around 187.860 mg. From the statistic test showed that life time in the wastewater gave a significant result to the ability in absorbing phosphate by the water hyacinth.
OPTIMALISASI INSTALASI PENGOLAHAN LUMPUR TINJA DENGAN PENGOMPOSAN LUMPUR TINJA (Studi Kasus IPLT SEMARANG) Oktiawan, Wiharyanto; Priyambada, Ika Bagus
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 3, No 2 (2007): Vol 3, No 2 (2007)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (964.002 KB) | DOI: 10.14710/presipitasi.v3i2.53-57

Abstract

Semarang Septage  Treatment  Facillty  is a septage manufacture which serves Semarang  Clty distrik. At this moment,  the facility  is disfunction  because  the septage pile up in the anaerobic pond.  Because  of that, Semanng Septage Treatment  Facility  has to be evaluated  which  is consisf of technical, infrastructure and management evaluations. As the resulfs of  the evaluation, the new anaerobic pond is recomended in 2007, so as the new sludge drying bed in 2005 and 2010.  The septage of Semarang Septage Treatment Facility  is very huge that is about 3m3/day.  The solution that can be taken is composting. The septage is fulfill the compost characteristic after it was dried in 30 days. The management of septage composting are consist of transporation, sifterization, weighing and packaging, and also transportation and storage. Thte price of compos product is Rp. 440,00/kg in 2005 and it will rise to 707,00 in 2014. it is relatively cheap if it is compared with the prices of another fertilizers, so it is proper to sold in the market.
DESAIN PEMBENTUKAN ZONA ATENGAH 1 JARINGAN PIPA DISTRIBUSI PDAM KOTA MAGELANG DI WILAYAH PELAYANAN MAGELANG TENGAH Sutrisno, Endro; Sarminingsih, Anik
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 (2023.492 KB) | DOI: 10.14710/presipitasi.v5i2.8-15

Abstract

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MODEL CEMARAN SENG (Zn) DI PERAIRAN SUNGAI DENGAN METODE UPWIND DAN METODE QUICKEST BERDASARKAN PEMBAGANAN ABBOT-IONESCHU (Studi Kasus : Kaligarang Semarang) Badrus Zaman; Syafrudin Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 7, No 2 (2010): Vol 7, No 2 (2010)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.058 KB) | DOI: 10.14710/presipitasi.v7i2.77-82

Abstract

Kali  Garang  kondisinya  sangat  dipengaruhi  oleh  lingkungan  sekitar  sungai.  Kali  Garang  juga mempunyai fungsi sebagai buangan limbah industri yang terdapat di sekitar bantaran sungai. Seng (Zn) adalah salah satu polutan logam berat yang terdapat di Kali Garang. Untuk mengetahui besarnya cemaran  dan  cara  yang  lebih  sederhana  dalam  proses  pemantauan  dapat  dilakukan  dengan membuat model cemaran di perairan sungai tersebut. Penelitian model cemaran ini menggunakan model matematis dengan metode Upwind dan metode Quickest berdasarkan pembaganan Abbot-Ioneschu, kemudian diaplikasikan ke dalam software Delphi 6. Hasil dari penelitian yang dilakukan pada  saat  pengukuran  di  sepanjang  Kali  Garang,  diketahui  bahwa  kandungan  Zn  di  lokasi  KG1 (Jembatan Pramuka) sebesar 0,715 – 0,806 mg/l, KG2 (Jembatan Tinjomoyo) sebesar 0,611 – 0,911 mg/l,  dan  KG3  (Jembatan  Tugu  Suharto)  sebesar  0,826  –  1,420  mg/l.  Sedangkan  hasil  metode Upwind untuk rentang waktu t = 0 – 18 jam mempunyai konsentrasi Zn sebesar 0,561 – 1,495 mg/l dengan nilai kesalahan terhadap data pengukuran masing-masing sebesar 0 % dan hasil metode Quickest untuk rentang waktu t = 0 – 18 jam mempunyai konsentrasi Zn sebesar 0,611 – 1,356 mg/l dengan nilai kesalahan terhadap data pengukuran masing-masing sebesar 0 %.

Page 17 of 60 | Total Record : 600

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