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Journal > Jurnal Teknik Lingkungan > PEMANFAATAN ZONA PASCA OPERASI PENIMBUNAN SAMPAH DI TPA BLONDO KABUPATEN SEMARANG

 

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Jurnal Teknik Lingkungan
Vol 3, No 3 (2014): Jurnal Teknik Lingkungan
PEMANFAATAN ZONA PASCA OPERASI PENIMBUNAN SAMPAH DI TPA BLONDO KABUPATEN SEMARANG
Article Info   ABSTRACT
Published date:
29 Aug 2014
 
Blondo landfill locatedin District Bawen, Kabupaten Semarang. Landfill siteswithin±2.5 kmofregionalroadsSemarang-Bawen. Blondolandfillhas an area of5haof land. Blondolandfillareais dividedinto 5zonescovering an area of3.6hausingControlled Landfillsystem. Potentiallandfill wasteinZone1is organic wasteof18077.1tons(67.5%) which can beprocessedinto compost. Plastic waste of 1821.1tons(6.8%) whichcan be further improvedits economic value. Residuesof5,624tons(21%) weresubsequentlydepositedinzone2. Landfill utilization begins with landfillmininginpost landfilling operationzone. Trashmanuallysievedto separateorganic waste, plastic wasteandresidues. Onceseparatedby type, trashfromlandfillscan be processedin accordancewith the potentialandneeds. Organic wasteis processed intocompostfertilizergranules. The utilization unitconsistsconveyor, pangranulator, rotary dryer, graders, and thecrusher. Thengranularfertilizer compostpackedandcan be sold. The needs ofinvestment costutilizationzonepostoperativelandfillis Rp2,651,211,465.00. Investment costsinclude theinvestmentof Rp1,298,635,465.00main building, principal equipment investment of Rp1,313,950,000.00andsupporting equipmentinvestmentof Rp38,626,000.00. The needs ofoperationalandmaintenancecostsin the first yearreachedRp 2.646.327.593, 00. Compostis sold atRp1000/kgwith an estimatedincome of Rp3,900,000,000.00. Advantagesorlossesin this plancan be determined bytaking into account theprofit and lossbalance. Estimatedincomeusing the NetPresent Value(NPV) andInternal Rate of Return(IRR). NPVvalueis12,079,813,538. NPV>0, then the projectcan beimplemented. IRR value is51%. IRR>12%, then the projectcan beimplemented.
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