?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+LAMA+PERENDAMAN+JERAMI+DALAM+LARUTAN+SODA%0D%0AAPI+DAN+PENAMBAHAN+RAGI+(Saccharomyces+cerevisiae)%0D%0ATERHADAP+PRODUKSI+BIOGAS&rft.creator=RINA+ANGGRAINI+PURBA%2C+1114071046&rft.subject=Budidaya+.+Perikanan+.+Angling&rft.subject=Teknologi+(General)&rft.description=Biogas+merupakan+sumber+energi+yang+berasal+dari+bahan+organik+seperti+kotoran%0D%0Ahewan+dan+limbah+pertanian.+Pembentukan+biogas+terdiri+atas+tiga+tahapan%2C+yaitu%0D%0Atahap+hidrolisis%2C+asidogenesis%2C+dan+metanogenesis.+Penelitian+ini+bertujuan+untuk%0D%0Amengetahui+pengaruh+lama+perendaman+jerami+menggunakan+larutan+soda+api%0D%0A(NaOH)+dan+penambahan+ragi+(Saccharomyces+cerevisiae)+terhadap+produksi%0D%0Abiogas+sistem+batch.+Penelitian+dilakukan+menggunakan+digester+batch+volume+3%0D%0AL+dengan+substrat+berupa+campuran+kotoran+sapi+dan+jerami+padi+dengan%0D%0Aperbandingan+berat+basah+3%3A+1+(kotoran+sapi%3A+jerami).+Penelitian+dilaksanakan%0D%0Amenggunakan+Rancangan+Acak+Lengkap+Faktorial+dengan+dua+faktor.+Faktor%0D%0Apertama+adalah+lama+perendaman+jerami+dalam+larutan+soda+api+1%25+yang+terdiri%0D%0Adari+3+level%2C+yaitu+0+(tanpa+perendaman)%2C+1+hari+(24+jam)%2C+dan+2+hari+(48+jam).%0D%0AFaktor+kedua+adalah+dosis+penambahan+ragi+yang+terdiri+dari+3+level%2C+yaitu+0%2C+0%2C5%2C%0D%0Adan+1+gram.+Semua+perlakuan+diulang+sebanyak+tiga+kali.+Pengamatan+meliputi%0D%0Akarakteristik+substrat+(kadar+air%2C+total+solid%2C+volatile+solid%2C+abu%2C+dan+C%2FN+ratio)%2C%0D%0Akondisi+proses+(pH+dan+suhu)%2C+serta+produksi+dan+produktivitas+biogas.+Hasil%0D%0Amenunjukkan+bahwa+lama+perendaman+berpengaruh+nyata+terhadap+produksi%0D%0Abiogas+hingga+hari+ke-30+pada+taraf+%CE%B1+%3D+5%25.+Hasil+analisis+sidik+ragam%0D%0Amenunjukkan+bahwa+faktor+lama+perendaman+jerami+berpengaruh+nyata+terhadap%0D%0Aproduksi+biogas%2C+sedangkan+penambahan+ragi+pada+dosis+hingga+1+gram+tidak%0D%0Aberpengaruh+terhadap+produksi+biogas.+Hasil+analisis+juga+menunjukkan+bahwa%0D%0Atidak+ada+interaksi+nyata+antara+faktor+lama+perendaman+jerami+menggunakan%0D%0Alarutan+soda+api+1%25+dan+penambahan+ragi.+Produksi+biogas+menggunakan%0D%0Acampuran+kotoran+sapi+dan+jerami+tanpa+perendamann+menunjukkan+produksi%0D%0Abiogas+kumulatif+tertinggi+(6.593+ml+selama+30+hari).+Biogas+yang+dihasilkan+dari%0D%0Asemua+perlakuan+memberikan+nyala+api+berwarna+biru+pada+saat+dibakar+yang%0D%0Amengindikasikan+kandungan+gas+metana+cukup+tinggi.%0D%0AKata+kunci%3A+Biogas%2C+kotoran+sapi%2C+jerami%2C+soda+api%2C+ragi%2C+perendaman%0D%0A%0D%0AEFFECT+OF+RICE+STRAW+SOAKING+USING+CAUSTIC+SODA%0D%0ASOLUTION+AND+YEAST+ADDITION+(Saccharomyces+cerevisiae)%0D%0AON+BIOGAS+PRODUCTION%0D%0A%0D%0ABiogas+is+a+source+of+energy+derived+from+organic+materials+such+as+manure+and%0D%0Aagricultural+waste.+The+formation+of+biogas+consists+of+three+stages%2C+namely%0D%0Ahydrolysis%2C+acidogenesis%2C+and+methanogenesis.+This+experiment+aimed+to+study%0D%0Athe+effect+of+rice+straw+soaking+within+caustic+soda+(NaOH)+solution+and+the%0D%0Aaddition+of+yeast+(Saccharomyces+cerevisiae)+on+biogas+production+using+batch%0D%0Amode.+Experiment+was+conducted+using+3-L+batch+digester+using+substrate%0D%0Acomposed+of+a+mixture+of+cow+manure+and+rice+straw+with+a+wet+weight+ratio+of%0D%0A3%3A+1+(cow+manure%3A+rice+straw).+The+experiment+was+conducted+using+completely%0D%0Arandomized+factorial+design+of+two+factors.+The+first+factor+is+soaking+time+of+rice%0D%0Astraw+in+1%25+caustic+soda+solution+which+was+composed+of+three+levels%2C+namely+0%0D%0A(without+pretreatment)%2C+1+day+(24+hours)%2C+and+2+days+(48+hours).+The+second%0D%0Afactor+was+yeast+dose+with+three+levels%2C+namely+0%2C+0.5%2C+and+1+gram.+All+treatment%0D%0Awas+replicated+3+times.+Characteristics+of+the+substrate+(water+content%2C+total+solid%2C%0D%0Avolatile+solid%2C+ash%2C+and+C%2FN+ratio)%2C+and+digester+performance+(pH+and+temperature)%2C%0D%0Aproduction+and+productivity+biogas+was+measured.+Results+show+that+biogas%0D%0Aproduction+until+day+30th+was+significantly+affected+by+soaking+time+at+%CE%B1+%3D+5%25.%0D%0AYeast+addition+until+1+gram%2C+however%2C+did+not+influence+the+biogas+production.%0D%0AThe+analysis+also+showed+that+there+is+no+significant+interaction+between+the%0D%0Asoaking+time+and+yeast+dose+on+the+biogas+production.+The+biogas+production%0D%0Ausing+a+mixture+of+cow+dung+and+rice+straw+without+soaking+gave+the+highest%0D%0Acummulative+biogas+production+(6%2C593+ml+for+30+days).+Biogas+produced+from+all%0D%0Atreatments+provide+a+blue+flame+when+burned+which+indicates+high+methane+gas%0D%0Acontent.%0D%0AKeywords%3A+Biogas%2C+cow+dung%2C+rice+straw%2C+caustic+soda%2C+yeast%2C+soaking&rft.publisher=FP&rft.date=2015-11-13&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15943%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F15943%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http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