Sri Hapsari Budisulistiorini
Environmental Engineering Department Diponegoro University

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SEWAGE SLUDGE GASIFICATION CASE STUDI IN RURAL INDIA Budisulistiorini, Sri Hapsari
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 (183.361 KB) | DOI: 10.14710/presipitasi.v4i1.69-74

Abstract

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PERENCANAAN REAKTOR LUMPUR IPAL DOMESTIK MOJOSONGO SURAKARTA Sutrisno, Endro; Budisulistiorini, Sri Hapsari
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 7, No 1 (2010): Vol 7, No 1 (2010)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.936 KB) | DOI: 10.14710/presipitasi.v7i1.23-31

Abstract

Increasing of the number of society and development for the residential facilities has resulted problem such as domestic wastewater. One of Domestic WWTP in Surakarta is Mojosongo WWTP. It serves house connections which lies in northern of Surakarta. It includes some units, those are inlet, first settling, aerated lagoon I, aerated  lagoon II, second sedimentation, and sludge drying bed. The treatment represents for the environmental treatment and to avoids the presence of pollution. It will result effluent where has required standard regulation for wastewater and sludge. The sludge there becomes problem because it is just thrown to the final disposal. Therefore, one of the right treatment is to recycle sludge using composting. Recycling the sludge will also give benefit to PDAM as the stakeholder of WWTP. Sludge resulted in a month is 20,54 m3. Raw materials used for composting are sludge, organic garbage, and saw invade with ratio 0,05: 1: 0,025. Product composting resulted is 7,3 m3/day and using 1200 m3 area. Units of composting there includes receiving space, composting reactor, filtering and packaging, warehouse, and garage. 
KAJIAN NILAI EKONOMI PENERAPAN KONSEP DAUR ULANG PADA TPA JATIBARANG KOTA SEMARANG Handayani, Dwi Siwi; Budisulistiorini, Sri Hapsari; Nuraini, Mya Rosie
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 6, No 2 (2009): Vol 6, No 2 (2009)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (811.566 KB) | DOI: 10.14710/presipitasi.v6i2.35-44

Abstract

There is no advance structural treatment to the solid waste in Semarang city. The usage of TPA Jatibarang, landfill in Semarang City, has already  exceed its limit. It can threaten the continuity of management of the solid waste in Semarang city. Therefore, the study of landfill management alternative on TPA Jatibarang is needed to longer the usage limit and maintain the operational of solid waste management in TPA Jatibarang, save the landfill area and produce economic value for both the manager and the scavenger. The composition of solid waste in TPA jatibarang are 78% wet garbage and 22% dry garbage, both kind oh garbage can be recycled so it will have high economic value. The recycle concept started with separation, continued with cutting out for each kind of dry garbage and composting for the wet garbage can produce high profit. Until the planning year of 2025, the profit is Rp 1.165.581.879.809,-. The profit not only for the manager but also fir the staff in recycling process. And for the scavenger, their income will increase if they work as the recycling staff. The income raising is from Rp. 19.000,-/person/day into Rp. 35.000,-/person/day will increase the life quality of the scavenger.
PERENCANAAN PENGOMPOSAN SEBAGAI ALTERNATIF PENGOLAHAN SAMPAH ORGANIK (STUDI KASUS: TPA PUTRI CEMPO – MOJOSONGO) Budisulistiorini, Sri Hapsari; Sutrisno, Endro; Sinaga, August
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 7, No 1 (2010): Vol 7, No 1 (2010)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.237 KB) | DOI: 10.14710/presipitasi.v7i1.13-22

Abstract

Garbage management system in many cities in Indonesia is only transporting the garbage from their sources to the solid waste landfill without existence of furthermore processing which can lessen the danger which possible can be happened. Therefore, one of the correct processing method is recycle by  composting,  because  50  -  80  %  city  garbage  represent  the  organic  garbage  that  can  be composted. Besides useful to lessen the amount arise the organic garbage, composting also give the advantage to all farmer, as well as assigning value economic for organic garbage. Surakarta City, that have density of population have composition of organic garbage of 70,05 % from the garbage entering the landfill, or equal to 808,51 m3/day. From arising the organic garbage, the land requirement for the composting facility is equal to 1,5 Ha with the compost production is 7.326,05 ton/year. Compost facility in TPA Putri Cempo consisted of garbage input site, activated compost site, filtering site, storage and offices. The cost needed to make this composting facility were Rp  8.937.486.128
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.