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"Di dalam UU No. 18 tahun 2008 kawasan perkantoran diwajibkan untuk menyelanggarakan pengurangan sampah dan penanganan sampah sehingga dipandang perlu untuk mengembangkan model pengelolaan sampah. Pada umumnya kawasan perkantoran memiliki luas yang cukup besar dan berlokasi cukup jauh dari TPA oleh karena itu banyak dari sampah perkantoran belum terlayani. Pola pengelolaan terpadu berbasis 3R (reduce, recycle, reuse) dan potensi daur ulang sampah organic menjadi pupuk dapat menjamin keberlanjutannya sehingga perlu didukung keberadaannya oleh semua pihak."

"Peran mikroba sangat penting dalam mempertahankan kesuburan tanah. mikroba yang digunakan dalam pupuk hayati dapat memacu pertumbuhan tanaman, menambat nitrogen, melarutkan posfat dan menghambat pertumbuhan penyakit tanaman"

"ABSTRAKPengolahan sampah organik, dapat berjalan dengan baik apabila sampah tersebut mempunyai kadar air dan komponen organik besar. Karakteristik sampah di kawasan PT. Bumi Serpong Damai yang terbanyak adalah sampah organik, yaitu mencapai 80 % dari seluruh sampah yang dihasilkan.Dengan adanya pengolahan sampah organik sistem composting di PT. Bumi Serpong Damai, maka sampah-sampah yang seharusnya di buang ke tempat pembuangan akhir (TPA) dapat dimanfaatkan kembali untuk dijadikan kompos.Penelitian ini bertujuan untuk mengetahui perbandingan nilai C/N rasio dalam sampah organik dan proses pengomposan yang optimal agar proses pengomposan dapat berjalan dengan baik serta kompos yang dihasilkan mengandung unsur hara yang besar.Bahan yang digunakan dalam penelitian ini adalah sampah organik yang ada di kawasan Bumi Serpong Damai, dengan perlakuan sebagai berikut : sampah organik C/N.rasio maksimal (> 20-40 : 1) dengan terowongan bambu (PSO.BSD-1), sampah organik C/N rasio optimal (20-40 : 1) dengan terowongan bambu (PSO.BSD-2), sampah organik C/N rasio minimal (< 20-40 : 1) dengan terowongan bambu (PSO.BSD-3), sampah organik C/N rasio maksimai (> 20-40 1) tanpa terowongan bambu (PSO.BSD-4), sampah organik C/N rasio optimal (20-40 : 1) tanpa terowongan bambu (PSO.BSD-5), sampah organik C/N rasio minimal (< 20--40 : 1) tanpa terowongan bambu (PSO.BSD-6). Kemudian diulang sebanyak lima kali.Sampah organik yang telah berubah menjadi kompos, berwarna kehitaman setelah mengalami pembusukan secara aerob sulit dikenali lagi dari bahan asal dan terjadi perubahan sifat kimianya.Komposisi sampah organik (perbandingan C/N rasio) berpengaruh positif dengan lama proses pengomposan dan kandungan unsur hara dalam kompos (N, P, K, Ca, Mg, C, C/N). Sedang proses pengomposan berpengaruh negatif dengan lama proses pengomposan.Kandungan logam berat dalam kompos menunjukkan bahwa pada semua perlakuan menghasilkan kompos yang mengandung logam berat jauh di bawah standar US Environmental Protection Agency (EPA).Menerapkan pengolahan sampah organik dengan sistem komposting dengan bahan baku yang mempunyai perbandingan C/N rasio optimal (sampah buah-buahan), di PT. Bumi Serpong Damai.ABSTRACTThe Effect of Organic Waste Variation C/N Ratio by This organic processing plant runs well only when the waste contains water and main organic component. The organic waste at PT. Bumi Serpong Damai reaches as high as 80 percent of the total garbage.With the existence of this compost system organic waste processing plant, PT. Bumi Serpong Damai can recycle the organic waste and make use of the resulted compost. And such an advantage prevents the waste from being disposed at the final garbage dump.Specific study had been conducted to figure out the C/N ratio contained in the organic waste and in the optimal compost process so that the compost process ran in order and the compost had sufficient fertile substances.The raw material used in such a specific study was the organic waste found at PT. Bumi Serpong Damai. This organic waste had certain characteristics and went through the following treatment : organic waste having maximum C/N ratio of being > 20 - 40 : 1 with bamboo tunnel (PSO.BSD-1), organic waste having optimum C/N ratio of being 20 - 40 : 1 with bamboo tunnel (PSO.BSD-2), organic waste having minimum C/N ratio of being < 20 - 40 : 1 with bamboo tunnel (PSO.BSD-3), organic waste having maximum C/N ratio of being > 20 - 40 : 1 without bamboo tunnel (PSO.BSD-4), organic waste having optimum C/N ratio of being 20 - 40 : 1 without bamboo tunnel (PSO.BSD-5), organic waste having minimum C/N ratio of being c 20 - 40 : 1 without bamboo tunnel (PSO.BSD-B). This treatment is subject to a five-time repetition.The resulted compost has dark and blackish color after going through the decaying process and its origin becomes unidentifiable, due to the chemical characteristic changes.Organic waste composition, or the C/N ratio, influences the length of the compost process and the fertile substances contained in the resulted compost such as N, P, K, Ca, Mg, c, and C/N. On the other hand, the compost process negatively affects its length.The treatment applied in the processing plant has produced compost in which the amount of heavy metal substances contained in the compost is lower than the EPA standard.The use of compost system organic waste processing plant with raw material of having optimum C/N ratio (disposed fruits) at PT. Bumi Serpong Damai."

"[Sekitar 58,9% penduduk Indonesia bergantung pada tangki septik untuk mengolah tinja, namun 90% dari IPLT yang ada tidak beroperasi dengan baik. Anaerobic digestion (AD) adalah teknologi alternatif yang dapat menggantikan sistim saat ini, namun dibutuhkan inokulum yang sesuai agar dapat mengolah lumpur tinja. Penelitian ini bertujuan untuk mengetahui pengaruh pencampuran inokulum cairan rumen sapi (R) dan feses sapi (F) ke dalam lumpur tinja, dan penambahan co-substrat serbuk kayu (SK) dan daun kering (DK) terhadap pembentukan gas metana. Metode yang digunakan adalah biochemical methane potential (BMP). Batasan yang digunakan adalah massa inkubasi 28 hari, suhu inkubator 35oC, rasio substrat/inokulum (RSI) 1:2, sampel triplo, dan volume efektif 50%. Substrat lumpur tinja memiliki karakteristik COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L, dan C/N 15,2. Hasil kombinasi substrat lumpur tinja dengan co-substrat SK dan DK menghasilkan nilai C/N 24,6 dan 16,8. Dari hasil uji BMP 28 hari, potensi gas metana RSK dan RDK adalah 60,5 dan 51,5 mLCH4/gVS. Kombinasi feses sapi, FSK dan FDK, menghasilkan 1,7 dan 37,7 mLCH4/gVS. Kesimpulan dari penelitian ini adalah inokulum (R) memiliki potensi menghasilkan gas metana lebih besar ketimbang (F), dan campuran co-substrat tidak memiliki pengaruh yang signifikan terhadap pembentukan gas metana.

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About 58,9% of Indonesian‟s people rely on septic tank to process fecal waste, but 90% of fecal treatment facilities doesn't function properly. Anaerobic Digestion (AD) is an alternative technology than could replace the existing system, but it requires a compatible inoculum to digest fecal sludge waste. This research aims to determine the effects of adding inoculum from cow's rumen fluid (R) and cow‟s feces (F) into fecal sludge, and also determine the effect of combination of sawdust (SK) and dried leaves (DK) to the methane gas production. The biochemical methane potential (BMP) method is used in this research. The research frameworks consist of 28 days incubation period, incubator temperature of 35oC, 1:2 substrate-to-inoculum ratios (RSI), triplicate sample and 50% effective volume. The sewage sludge characteristics are COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L and C/N 15,2. The combination of fecal sludge substrate with sawdust co-substrate and dried leaves yields C/N value of 24,6 and 16,8 respectively. The results of this research are the combination of rumen with RSK and RDK yields 60,5 dan 51,5 mLCH4/gVS respectively. The combination of cow feces with FSK and FDK yields 1,7 dan 37,7 mLCH4/gVS. This experiment concluded that inoculum (R) has the highest methane production compare to (F) and the combination of co-substrate (SK) and (DK) has little influence in methane gas production., About 58,9% of Indonesian‟s people rely on septic tank to process fecal waste, but 90% of fecal treatment facilities doesn‟t function properly. Anaerobic Digestion (AD) is an alternative technology than could replace the existing system, but it requires a compatible inoculum to digest fecal sludge waste. This research aims to determine the effects of adding inoculum from cow‟s rumen fluid (R) and cow‟s feces (F) into fecal sludge, and also determine the effect of combination of sawdust (SK) and dried leaves (DK) to the methane gas production. The biochemical methane potential (BMP) method is used in this research. The research frameworks consist of 28 days incubation period, incubator temperature of 35oC, 1:2 substrate-to-inoculum ratios (RSI), triplicate sample and 50% effective volume. The sewage sludge characteristics are COD 8,99 g/L, TS 8,1 g/L, VS 7,1 g/L and C/N 15,2. The combination of fecal sludge substrate with sawdust co-substrate and dried leaves yields C/N value of 24,6 and 16,8 respectively. The results of this research are the combination of rumen with RSK and RDK yields 60,5 dan 51,5 mLCH4/gVS respectively. The combination of cow feces with FSK and FDK yields 1,7 dan 37,7 mLCH4/gVS. This experiment concluded that inoculum (R) has the highest methane production compare to (F) and the combination of co-substrate (SK) and (DK) has little influence in methane gas production.]"