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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 6 Documents
 1 
Search results for , issue "Vol 9, No 1 (2012): Vol 9, No 1 (2012)" : 6 Documents clear
PENGARUH KONDISI SISTEM DRAINASE, PERSAMPAHAN DAN AIR LIMBAH TERHADAP KUALITAS LINGKUNGAN (Studi kasus Kelurahan Kuningan Kecamatan Semarang Utara) Oktiawan, Wiharyanto; Amalia, Setia
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 (239.49 KB) | DOI: 10.14710/presipitasi.v9i1.41-50

Abstract

Kelurahan Kuningan in the district of north Semarang meet with enviromental quality and people’s healthy degree decrease cause by poor drainage system, solid waste and waste water management. This  case  had  been  caused  several  disease  that  disturb  people’s  healthy.  The  purposes  of  this research was  to  know  the  existing condition  of drainage  system, solid  waste and waste  water in KelurahanKuningan, to know the influence of existing condition into enviromental quality and people’s healthy, to give an overcoming solution connected with PenyehatanLingkunganPemukiman program that  points  on  people  in  this  development  area.  Method  used  in  this  research  is  observation, questionaire and  interview, BOD concentration measurement  in drainage line and secondary  data collection include institution aspect, operational, financial, law and also people’s role. Results of this research show that BOD concentration in tertiary, secondary and primary drainage line is over from PP No.82 tahun 2001. Calculation results show the available pump is not enough to take the water debit from domestic rain that accumulated with domestic waste water, plus when the flood tide and flood from the higher area. The condition is getting worse by stucking trash in line that causing disease and  become  sediment.  Waste  water  distribution  system  in  this  area  is  not  appropriate  with  high density population and also public MCK as sanitation place is careless. That case caused the unclean enviromental and people have to expend extra money to take the medicine and to buy clean water. The  recommended  overcoming  solutions  are  formating the  pumping  team  and  public  MCK  team management,  increasing  pumping  capasity,  maintenance  budget,  exploiting  the  sediment,  3R program, waste water distribution system with communal system and public MCK fixed up.
KETAHANAN GELAS-LIMBAH AKTIVITAS TINGGI HASIL VITRIFIKASI MENGGUNAKAN BOTTOM ASH SEBAGAI GLASSFRITS Budiarti, Ratna; Purwanto, Purwanto; Martono, Herlan
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 (582.052 KB) | DOI: 10.14710/presipitasi.v9i1.20-30

Abstract

Vitrification is considered  as the most appropriate technology for HLW treatment.  However, it has constraints, those are processability, economic, and durability. The purposes of  this study are to examine the composition of materials using bottom ash  as an alternative glassfrits for vitrification, to assess waste glass durability of selected glassfrits and analyze the economic advantage of bottom ash utilization as glassfrits. This research was conducted with simulated High Level Waste. Glass–waste was melted at its melting point. Glasses  used in the study were borosilicate glass, bottom ash glass, and bottom ash glass added  B2O3.  Parameters  used  for  selected  glassfrits  are  melting  temperature,  leaching  ratecompressive strength and cost analysis. Selected glassfrits was analyzed using XRD and performed tests to determine the effect of pH on leaching rate. The results indicated that the addition of B2O3 in glass bottom ash reduced the melting temperature. This glass has a density of 2.78 g/cm3 , leaching rate of 6.99 x 10-7. Utilization of  bottom ash as a glassfrits can save 75, 34% of cost. The results of XRD analysis explained that the devitrification formed  a crystalline of Ca-Fe-Al-S-Si-O, Fe+2Fe2 O4+3, Ca-Mg-Fe-Ti-AlSiO. the influence of pH on the leaching rate showed that the highest leaching rate was at acidic condition Keywords: vitrification, chemical durability, mechanical durability, bottom ash
PENGARUH PERKEMBANGAN LAHAN TERBANGUN TERHADAP KUALITAS LINGKUNGAN PERMUKIMAN (Studi Kasus: Kawasan Pendidikan Kelurahan Tembalang) Yuliastuti, Nany; Fatchurochman, Arif
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 (582.052 KB) | DOI: 10.14710/presipitasi.v9i1.10-16

Abstract

The existence of educational activities in the Tembalang sub-district consequence the emergence of other activities to support educational activities, among other activities of living, trade and services and so on. The diversity of activity and increasing numbers of migrants implies built up area increasing for housing  and  supporting  facilities  and  infrastructure.  The  purpose  of  this  study  is  to  explain  the influence of built up area development to the quality of the settlement environment in the Tembalang educational  area.  This  study  uses  quantitative  methods  by  using  analytical  techniques,  including identification, correlative analysis, and descriptive analysis. Built up area developments in settlement area of Tembalang   from 2006 - 2010  increased for 48% (27 395  m2) from the  conditions at the beginning of the year 2006 with an average increase for 6848.77 m2 or about 12% of the area in 2006.  The  quality  of  settlement  environment  viewed from  the  physical  aspects  including  building density  conditions,  the basic coefficient  buildings, settlement  infrastructure and settlement  facilities show conditions are quite good quality. The condition of built up area development give a positive influence on scores from the quality of settlement environment by the equation Y = 0,256 x – 0,30. This means required at least 2% of built up area development which increase the quality of settlement infrastructure to improve the quality of settlement environments.
MODEL PERENCANAAN DAN PENGELOLAAN LINGKUNGAN BERBASIS MASYARAKAT KASUS : BENTANGLAHAN KAWASAN TEMBALANG SEMARANG Samadikun, Budi Prasetyo; Sudibyakto, Sudibyakto; Setiawan, Bakti; Rijanta, Rijanta
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 (153.577 KB) | DOI: 10.14710/presipitasi.v9i1.17-20

Abstract

One of mayor requirement in environmental system planning and management is to predict the condition  in  the  future.  Model  can  be  used  to  simplified  the  prediction  and  arrangement  of anything.  There  are  four  steps  as  a  guidance  for  making  a  model,  i.e.:  model  formulation, parameter identification, parameter estimation, and model validation. The result being expected after applying those four steps is a good model that consistent with study objective, simple, and applicable.
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.
PERKEMBANGAN BIOFILM NITRIFIKASI DI FIXED BED REACTOR PADA SALINITAS TINGGI Sudarno, Sudarno
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 (289.084 KB) | DOI: 10.14710/presipitasi.v9i1.1-9

Abstract

Development of nitrification biomass that is growing attached on carried material was examined by measuring its ammonium or nitrit oxidation rates. Porous ceramic rings (36 pieces) were put into the fixed bed reactor (FBR ). The fixed bed reactor  that was operated continuously for more than 500 day was continued to be operated at a HRT of 1 day, a DO of above 5 mg L-1 and pH of 8. Ammonia concentration in the feeding was 50 mg NH4+-N L-1.  At days 1, 5, 12, 20, 33 and 50, six porous ceramic rings were taken out and then ammonia and nitrite removal rate by biofilm in the ceramic rings was separately measured. The measurement of rates was done in small cylindrical glass reactors with initial concentration of ammonia and nitrite was 10 mg N L-1. Until 50 days of incubation AORs were always higher than NORs. Additionally, ammonia oxidizers attach or grow faster in the porous ceramic material than nitrite oxidizers. Keywords: saline wastewater, Ammonium Oxidizing Bacteria, Nitrit Oxidizing Bacteria, biofilm

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