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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 13 Documents
 1   2 
Search results for , issue "Vol 2, No 1 (2007): Vol 2, No 1 (2007)" : 13 Documents clear
DAMPAK PERTIMBANGAN EKONOMIS TERHADAP TATA RUANG KOTA JAKARTA DAN BOPUNJUR Samadikun, Budi Prasetyo
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 (54.298 KB) | DOI: 10.14710/presipitasi.v2i1.34-38

Abstract

The  uncontrollable  urban  growth  become  serious  implication  to  the  environment  and urban economy. Jakarta as a capital city of Indonesia has growing significantly from metropolitan to megapolitan  city.  This  growth  also  followed  by  environment  degradation,  which  caused  by changing of  urban planology that doesn’t match with the policy of the last government. Jakarta coastal reclamation  and  the  changing  of  Bopunjur’s  (Bogor,  Puncak,  Cianjur)  function  as  a conservation area are the real evidence, that have occured some colaboration and co-operation  between  government as  a  policy  maker  and  contractor  as  a  constructor.  The  priority  of economic consideration by all stakeholders make environment become “dying”  from day to day.
UNJUK KERJA MODIFIKASI SBR AEROB TERHADAP PENYISIHAN COD Junaidi, Junaidi
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 (85.574 KB) | DOI: 10.14710/presipitasi.v2i1.60-65

Abstract

Sequencing  Batch  Reactor  (SBR)  is  a  modification  process  from  activated  sludge  that has flexibility in its implementation. In aerobic SBR, all phase is in aerobic cycles those are filling phase, reaction  phase,  settling  phase,  drawing  phase  and  idle  phase.  In  this  research,  idle phase  is modified  as  stabilize  phase  where  biomass  is  aerated  for  finite  time  so  sorption capacity    of biomass  back  to  normal  This  research  shows  that  optimum  COD  removal  is achieved  in  one  hour reaction  time  and  stabilization  time  is  6  which  is  97,02  %  using  active carbon and  95,23 % without active carbon. In conclusion, COD removal capabilities with GAC is better than without GAC.
ANALISIS EFISIENSI TEORETIS KONDISI FABRIC FILTER DI UNIT COAL MILL PADA PT SG DI TUBAN JAWA TIMUR Huboyo, Haryono Setiyo
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 (66.635 KB) | DOI: 10.14710/presipitasi.v2i1.15-18

Abstract

Cement  Industrial  activities  produces  various  pollutants  mainly  dust  pollutant  and  gases pollutants. These  pollutants  come  up  from  material  handling,  production  process  (treatment, combustion  and finish  mill)  and  packing  process.  PT  SG  has  done  any  steps  to  controll  its pollutant  i.e  ambient and  emission  pollutant  measurements  and  conducting  abatement.  Bag filters in coal mill unit shows an excellent performance since its real dust output concentration only 22.9 and 13.4 mg/m3 far below emission standard 80 mg/m3. Theoretical efficiency of this device  was  assessed  using  design  criteria, limited  assumption  and  secondary  relevant literature.  Based  on  secondary  data  the  efficiency  was 99.9%  (higher  than  EPA  standard 99.5%). Its values are somewhat different using real output concentration showing 99.29% and 99.58%.  These  differences  were  subjected  to  limited  design specification  data  and  fluid properties exist.
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.
ANALISIS PENGARUH HIDROLIKA SUNGAI TERHADAP TRANSPORT BOD DAN DO DENGAN MENGGUNAKAN SOFTWARE QUAL2E (STUDI KASUS DI SUNGAI KALIGARANG, SEMARANG ) Nugraha, Winardi Dwi
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 (89.171 KB) | DOI: 10.14710/presipitasi.v2i1.66-70

Abstract

People and industrial activity along Kaligarang River increase day by day, cause load of river increase too. River has many function to support human life, so monitoring of river is needed Monitoring  of  river  water quality  in  some  places  need  many  expenses  and  can  not  give information  abaout  water  quality comprehensively.  That  is  why,  it’s  needed  a  water  quality modeling for river. In this case, it’s used Qual2E one of the water quality modeling software. To use the software related to the river characteristic, it’s still needed to justify some of coefficients   and  get  validation  related  to  reaction  pattern  among the  constituent,  hydraulic  condition,  and hidrology aspects. The research is proposed to see the process of calibration of model related to the justification of coefficient.And so, to analyze the influence of hydraulic aspects of river to the BOD and DO pattern. It’s needed the secondary data, i.e. water quality sampling, climatlogy, hydrology (discarge of river), river hydraulic aspects, map, point source.The calibration is done related to the data and coefficient of the model to get the suitable model used Kaligarang River. This  calibrated  model  is  validated  by  the  secondary  data,  i.e.  water  quality sampling  from Bappedal Province of Central Java. And the get simulation with the various of hydraulic aspects, i.e. “n” number of Manning, cross section, and the influence of Simongan dam. The conclusions of the research say that there are influences and relationships of hydraulic aspects to the BOD and DO pattern.
RISK ANALYSIS OF CO EMITED FROM MOTOR VEHICLES TO PEOPLE LIVING AND DOING ACTIVITIES IN ROADSIDE (CASE STUDY: JOGJAKARTA’S MAIN STREETS) Budihardjo, Mochamad Arief
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 (93.277 KB) | DOI: 10.14710/presipitasi.v2i1.19-24

Abstract

Air pollution problems have been progressively set attention to the world specifically in industrial countries recently. This problem not only gives affect at health like emphysema, bronchitis, and other  inhalation disease  but  also  makes  plants  and  property  destruction  that  causing  loss. Research  concerning  in the  level  of  risk  which  is  accepting  by  people  who  living  and  doing activities  in  roadside  which most  of  air  pollutants  come from  transportation  facilities  such  as motor  vehicles.  This  research focuses  on  CO  exposure  which  penetrates  the  body  through respiration.  There  are  four  steps  in this  research,  first,  hazard  identification  showing  CO concentration  in  15  sampling  locations resulting  highest  CO  concentration  is  equal  to  17.250 µg/m3;  second,  exposure  assessment involves  population  exposed  that  are  Pedi  cab  worker, parking  man,  and  cloister  merchant  to know  CO  intake  each  person  using  calculation  of  CO  intake range from 1,0703-2,6089 mg/kg . day; third, dose-response assessment to know what people  will  be  experiencing  if  exposed  by  CO    at certain  dose;  fourth,  risk  characterization resulting  that  risk  value/Hazard  Index  (HI)  less  than  1. This  research  concludes  that  CO concentration of most main streets in Jogjakarta do not adverse to people’s health who living and doing activities in roadside
KAJIAN PENGANGKUTAN PERSAMPAHAN DI KOTA SEMARANG BERDASARKAN GRAFIK PENGENDALI KECEPATAN Maryono, Maryono; Wahyudi, Bramanthyo Heru
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 (161.533 KB) | DOI: 10.14710/presipitasi.v2i1.43-50

Abstract

Some issues arouse an opinion that the activity of garbage transportation systems in Semarang aren’t work properly.  This  transportation  systems  management  in  Semarang  are  able  to  be evaluated from aspect of  time-limited transportation systems that which determines the efficient routes,  so  that  it could  be  solve  the  issues  of  garbage  transportation  systems  based  on  the minimum time-limit (not always the route with the nearest distances) from the dump-truck to the direction  of  TPA.  It  found that  the  velocity  of  dump-truck  is  28  km/hours  above  the  minimum services  standard,  which  is 25  km/hours.  It  also  found  that  quality  of  the  effective  time  of garbage transportation systems in Semarang is 1,026 or PKP ≈ 1, which depict that there is a lot of garbage that not well-distributes to the TPA in several zone. Whereas the efficient velocity of the dump-truck are about 26-28 km/hours. Overall we can conclude that the time-efficiency of garbage transportation systems in Semarang is in a middle conditions.
STUDI PENGELOLAAN LIMBAH PABRIK GULA (STUDI KASUS PABRIK GULA PT. KEBON AGUNG DI TRANGKIL PATI) Syafrudin, Syafrudin; Astuti, Arieyanti Dwi
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 (53.468 KB) | DOI: 10.14710/presipitasi.v2i1.25-27

Abstract

Solid waste from sugar cane which are familiar to call “blotong” and “ketel” dust is potentially to compost. In the composting process, biostarnio activator is added to increase the composting process. The composting process take + 22 days to produce mature compost and the product has been met the SNI 19 7030-2004, which are N 1,37%;  P 2 O 5  1,81%; K 2 O 2,22%; Fe 0,49%; Ca 2,56%; MgO 0,53%; Mn 0,03%; pH 7,1; Zn 80,99 ppm; Cu 44,01 ppm; C organic 16,48%; C/N ratio 12,03 %.
EVALUASI PENGELOLAAN SAMPAH RUMAH SAKIT PUSAT ANGKATAN DARAT GATOT SOEBROTO Paramita, Nadia
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 (64.843 KB) | DOI: 10.14710/presipitasi.v2i1.51-55

Abstract

Activity in a hospital producing organic and inorganic solid waste.the characteristics of  the solid waste are devided into domestic and medical which have to be destroyed immidiatly, so they wont coused any environmental problems. One way to prevent the danger coused by  those  waste  is  using  the  right hospital  waste  management  from  the  source  until  the destruction parts. In waste management, it is important separate between medical and non medical  waste  from  the  source  than  continue  with  the right  storage,  and  transportation steps.  To  destroy  medical  waste,  controlled  air  incinerator  with multychamber  is recommended  incinerator  technology.  With  two  steps  of  burning  processes  will make complete  combustion.  Experiment  of  medical  waste  incinerator  with  abaout  5 m3 capacitiesshows  the  batch  combustion  system  at  800-1600  ºC  temperature.  Using that incinerator, the volume of this medical solid waste can be reduceduntil ± 67 % and mass reduction until 70-80 %.
STUDI PENGARUH PENCAMPURAN SAMPAH DOMESTIK, SEKAM PADI, DAN AMPAS TEBU DENGAN METODE MAC DONALD TERHADAP KEMATANGAN KOMPOS Badrus Zaman; Endro Sutrisno
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 (131.415 KB) | DOI: 10.14710/presipitasi.v2i1.1-7

Abstract

This research using the domestic organic garbage which is mixed by rice bran and cane pulp, with the variation of mixing pursuant to ratio C/N and moisture is, cane pulp : domestic organic garbage equal to 1:4, 2:7, rice bran : domestic organic garbage, 1:4, 2:7, and also the mixture cane pulp : domestic organic garbage : rice bran, 2:10:2, 1:7:1. Conduct attempted by aerobic and Mac Donald method. So that pursuant to the research can be taken conclusion that mixing lock  up  the  rice  bran  and  cane  pulp with the  domestic  organic  garbage  is  slow  down  the compost maturity so that unnecessary of cane pulp mixing and rice bran of at domestic organic garbage  composting,  compost  quality  of  result  of  mixing as  according  to  value  of  compost quality  at  SNI  19-7030-2004.  Composition  which  it faster  the compost  maturity  is  control  and composition which it has good ratio C/N from 6 variation is variation AS 27 which it consists of two cane pulp and seven domestic organic garbage.

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